diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2013-02-21 16:16:55 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-02-22 10:07:30 +0100 |
| commit | edb15d83a875a1f4b1576188844db5c330c3267d (patch) | |
| tree | 74d54eab401b6ccf2a6ad4821227108a8d160f03 /Documentation | |
| parent | 8bfc245f9ad7bd4e461179e4e7852ef99b8b6144 (diff) | |
| parent | a0b1c42951dd06ec83cc1bc2c9788131d9fefcd8 (diff) | |
| download | linux-edb15d83a875a1f4b1576188844db5c330c3267d.tar.gz linux-edb15d83a875a1f4b1576188844db5c330c3267d.tar.bz2 linux-edb15d83a875a1f4b1576188844db5c330c3267d.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
Conflicts:
include/linux/ssb/ssb_driver_gige.h
Also resolves a logical merge conflict in drivers/net/ethernet/broadcom/-
bgmac.c due to change of an API.
Diffstat (limited to 'Documentation')
92 files changed, 2209 insertions, 842 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events new file mode 100644 index 000000000000..0adeb524c0d4 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -0,0 +1,62 @@ +What: /sys/devices/cpu/events/ + /sys/devices/cpu/events/branch-misses + /sys/devices/cpu/events/cache-references + /sys/devices/cpu/events/cache-misses + /sys/devices/cpu/events/stalled-cycles-frontend + /sys/devices/cpu/events/branch-instructions + /sys/devices/cpu/events/stalled-cycles-backend + /sys/devices/cpu/events/instructions + /sys/devices/cpu/events/cpu-cycles + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> + +Description: Generic performance monitoring events + + A collection of performance monitoring events that may be + supported by many/most CPUs. These events can be monitored + using the 'perf(1)' tool. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + +What: /sys/devices/cpu/events/PM_LD_MISS_L1 + /sys/devices/cpu/events/PM_LD_REF_L1 + /sys/devices/cpu/events/PM_CYC + /sys/devices/cpu/events/PM_BRU_FIN + /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC + /sys/devices/cpu/events/PM_BRU_MPRED + /sys/devices/cpu/events/PM_INST_CMPL + /sys/devices/cpu/events/PM_CMPLU_STALL + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> + Linux Powerpc mailing list <linuxppc-dev@ozlabs.org> + +Description: POWER-systems specific performance monitoring events + + A collection of performance monitoring events that may be + supported by the POWER CPU. These events can be monitored + using the 'perf(1)' tool. + + These events may not be supported by other CPUs. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + Further, multiple terms like 'event=0xNNNN' can be specified + and separated with comma. All available terms are defined in + the /sys/bus/event_source/devices/<dev>/format file. diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D0 b/Documentation/ABI/testing/sysfs-devices-power_resources_D0 new file mode 100644 index 000000000000..73b77a6be196 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D0 @@ -0,0 +1,13 @@ +What: /sys/devices/.../power_resources_D0/ +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../power_resources_D0/ directory is only + present for device objects representing ACPI device nodes that + use ACPI power resources for power management. + + If present, it contains symbolic links to device directories + representing ACPI power resources that need to be turned on for + the given device node to be in ACPI power state D0. The names + of the links are the same as the names of the directories they + point to. diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D1 b/Documentation/ABI/testing/sysfs-devices-power_resources_D1 new file mode 100644 index 000000000000..30c20703fb8c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D1 @@ -0,0 +1,14 @@ +What: /sys/devices/.../power_resources_D1/ +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../power_resources_D1/ directory is only + present for device objects representing ACPI device nodes that + use ACPI power resources for power management and support ACPI + power state D1. + + If present, it contains symbolic links to device directories + representing ACPI power resources that need to be turned on for + the given device node to be in ACPI power state D1. The names + of the links are the same as the names of the directories they + point to. diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D2 b/Documentation/ABI/testing/sysfs-devices-power_resources_D2 new file mode 100644 index 000000000000..fd9d84b421e1 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D2 @@ -0,0 +1,14 @@ +What: /sys/devices/.../power_resources_D2/ +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../power_resources_D2/ directory is only + present for device objects representing ACPI device nodes that + use ACPI power resources for power management and support ACPI + power state D2. + + If present, it contains symbolic links to device directories + representing ACPI power resources that need to be turned on for + the given device node to be in ACPI power state D2. The names + of the links are the same as the names of the directories they + point to. diff --git a/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot b/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot new file mode 100644 index 000000000000..3df32c20addf --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power_resources_D3hot @@ -0,0 +1,14 @@ +What: /sys/devices/.../power_resources_D3hot/ +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../power_resources_D3hot/ directory is only + present for device objects representing ACPI device nodes that + use ACPI power resources for power management and support ACPI + power state D3hot. + + If present, it contains symbolic links to device directories + representing ACPI power resources that need to be turned on for + the given device node to be in ACPI power state D3hot. The + names of the links are the same as the names of the directories + they point to. diff --git a/Documentation/ABI/testing/sysfs-devices-power_state b/Documentation/ABI/testing/sysfs-devices-power_state new file mode 100644 index 000000000000..7ad9546748f0 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-power_state @@ -0,0 +1,20 @@ +What: /sys/devices/.../power_state +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../power_state attribute is only present for + device objects representing ACPI device nodes that provide power + management methods. + + If present, it contains a string representing the current ACPI + power state of the given device node. Its possible values, + "D0", "D1", "D2", "D3hot", and "D3cold", reflect the power state + names defined by the ACPI specification (ACPI 4 and above). + + If the device node uses shared ACPI power resources, this state + determines a list of power resources required not to be turned + off. However, some power resources needed by the device node in + higher-power (lower-number) states may also be ON because of + some other devices using them at the moment. + + This attribute is read-only. diff --git a/Documentation/ABI/testing/sysfs-devices-real_power_state b/Documentation/ABI/testing/sysfs-devices-real_power_state new file mode 100644 index 000000000000..8b3527c82a7d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-real_power_state @@ -0,0 +1,23 @@ +What: /sys/devices/.../real_power_state +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../real_power_state attribute is only present + for device objects representing ACPI device nodes that provide + power management methods and use ACPI power resources for power + management. + + If present, it contains a string representing the real ACPI + power state of the given device node as returned by the _PSC + control method or inferred from the configuration of power + resources. Its possible values, "D0", "D1", "D2", "D3hot", and + "D3cold", reflect the power state names defined by the ACPI + specification (ACPI 4 and above). + + In some situations the value of this attribute may be different + from the value of the /sys/devices/.../power_state attribute for + the same device object. If that happens, some shared power + resources used by the device node are only ON because of some + other devices using them at the moment. + + This attribute is read-only. diff --git a/Documentation/ABI/testing/sysfs-devices-resource_in_use b/Documentation/ABI/testing/sysfs-devices-resource_in_use new file mode 100644 index 000000000000..b4a3bc5922a3 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-resource_in_use @@ -0,0 +1,12 @@ +What: /sys/devices/.../resource_in_use +Date: January 2013 +Contact: Rafael J. Wysocki <rafael.j.wysocki@intel.com> +Description: + The /sys/devices/.../resource_in_use attribute is only present + for device objects representing ACPI power resources. + + If present, it contains a number (0 or 1) representing the + current status of the given power resource (0 means that the + resource is not in use and therefore it has been turned off). + + This attribute is read-only. diff --git a/Documentation/ABI/testing/sysfs-platform-ts5500 b/Documentation/ABI/testing/sysfs-platform-ts5500 new file mode 100644 index 000000000000..c88375a537a1 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-ts5500 @@ -0,0 +1,47 @@ +What: /sys/devices/platform/ts5500/adc +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of an A/D Converter. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/ereset +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of an external reset. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/id +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Product ID of the TS board. TS-5500 ID is 0x60. + +What: /sys/devices/platform/ts5500/jumpers +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Bitfield showing the jumpers' state. If a jumper is present, + the corresponding bit is set. For instance, 0x0e means jumpers + 2, 3 and 4 are set. + +What: /sys/devices/platform/ts5500/rs485 +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of the RS485 option. If it is present, + it will display "1", otherwise "0". + +What: /sys/devices/platform/ts5500/sram +Date: January 2013 +KernelVersion: 3.7 +Contact: "Savoir-faire Linux Inc." <kernel@savoirfairelinux.com> +Description: + Indicates the presence of the SRAM option. If it is present, + it will display "1", otherwise "0". diff --git a/Documentation/DocBook/80211.tmpl b/Documentation/DocBook/80211.tmpl index 42e7f030cb16..284ced7a228f 100644 --- a/Documentation/DocBook/80211.tmpl +++ b/Documentation/DocBook/80211.tmpl @@ -107,8 +107,8 @@ !Finclude/net/cfg80211.h key_params !Finclude/net/cfg80211.h survey_info_flags !Finclude/net/cfg80211.h survey_info -!Finclude/net/cfg80211.h beacon_parameters -!Finclude/net/cfg80211.h plink_actions +!Finclude/net/cfg80211.h cfg80211_beacon_data +!Finclude/net/cfg80211.h cfg80211_ap_settings !Finclude/net/cfg80211.h station_parameters !Finclude/net/cfg80211.h station_info_flags !Finclude/net/cfg80211.h rate_info_flags diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt index 53e6fca146d7..a09178086c30 100644 --- a/Documentation/PCI/MSI-HOWTO.txt +++ b/Documentation/PCI/MSI-HOWTO.txt @@ -127,15 +127,42 @@ on the number of vectors that can be allocated; pci_enable_msi_block() returns as soon as it finds any constraint that doesn't allow the call to succeed. -4.2.3 pci_disable_msi +4.2.3 pci_enable_msi_block_auto + +int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *count) + +This variation on pci_enable_msi() call allows a device driver to request +the maximum possible number of MSIs. The MSI specification only allows +interrupts to be allocated in powers of two, up to a maximum of 2^5 (32). + +If this function returns a positive number, it indicates that it has +succeeded and the returned value is the number of allocated interrupts. In +this case, the function enables MSI on this device and updates dev->irq to +be the lowest of the new interrupts assigned to it. The other interrupts +assigned to the device are in the range dev->irq to dev->irq + returned +value - 1. + +If this function returns a negative number, it indicates an error and +the driver should not attempt to request any more MSI interrupts for +this device. + +If the device driver needs to know the number of interrupts the device +supports it can pass the pointer count where that number is stored. The +device driver must decide what action to take if pci_enable_msi_block_auto() +succeeds, but returns a value less than the number of interrupts supported. +If the device driver does not need to know the number of interrupts +supported, it can set the pointer count to NULL. + +4.2.4 pci_disable_msi void pci_disable_msi(struct pci_dev *dev) This function should be used to undo the effect of pci_enable_msi() or -pci_enable_msi_block(). Calling it restores dev->irq to the pin-based -interrupt number and frees the previously allocated message signaled -interrupt(s). The interrupt may subsequently be assigned to another -device, so drivers should not cache the value of dev->irq. +pci_enable_msi_block() or pci_enable_msi_block_auto(). Calling it restores +dev->irq to the pin-based interrupt number and frees the previously +allocated message signaled interrupt(s). The interrupt may subsequently be +assigned to another device, so drivers should not cache the value of +dev->irq. Before calling this function, a device driver must always call free_irq() on any interrupt for which it previously called request_irq(). diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt index 54469bc81b1c..94a656131885 100644 --- a/Documentation/acpi/enumeration.txt +++ b/Documentation/acpi/enumeration.txt @@ -63,8 +63,8 @@ from ACPI tables. Currently the kernel is not able to automatically determine from which ACPI device it should make the corresponding platform device so we need to add the ACPI device explicitly to acpi_platform_device_ids list defined in -drivers/acpi/scan.c. This limitation is only for the platform devices, SPI -and I2C devices are created automatically as described below. +drivers/acpi/acpi_platform.c. This limitation is only for the platform +devices, SPI and I2C devices are created automatically as described below. SPI serial bus support ~~~~~~~~~~~~~~~~~~~~~~ diff --git a/Documentation/acpi/scan_handlers.txt b/Documentation/acpi/scan_handlers.txt new file mode 100644 index 000000000000..3246ccf15992 --- /dev/null +++ b/Documentation/acpi/scan_handlers.txt @@ -0,0 +1,77 @@ +ACPI Scan Handlers + +Copyright (C) 2012, Intel Corporation +Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> + +During system initialization and ACPI-based device hot-add, the ACPI namespace +is scanned in search of device objects that generally represent various pieces +of hardware. This causes a struct acpi_device object to be created and +registered with the driver core for every device object in the ACPI namespace +and the hierarchy of those struct acpi_device objects reflects the namespace +layout (i.e. parent device objects in the namespace are represented by parent +struct acpi_device objects and analogously for their children). Those struct +acpi_device objects are referred to as "device nodes" in what follows, but they +should not be confused with struct device_node objects used by the Device Trees +parsing code (although their role is analogous to the role of those objects). + +During ACPI-based device hot-remove device nodes representing pieces of hardware +being removed are unregistered and deleted. + +The core ACPI namespace scanning code in drivers/acpi/scan.c carries out basic +initialization of device nodes, such as retrieving common configuration +information from the device objects represented by them and populating them with +appropriate data, but some of them require additional handling after they have +been registered. For example, if the given device node represents a PCI host +bridge, its registration should cause the PCI bus under that bridge to be +enumerated and PCI devices on that bus to be registered with the driver core. +Similarly, if the device node represents a PCI interrupt link, it is necessary +to configure that link so that the kernel can use it. + +Those additional configuration tasks usually depend on the type of the hardware +component represented by the given device node which can be determined on the +basis of the device node's hardware ID (HID). They are performed by objects +called ACPI scan handlers represented by the following structure: + +struct acpi_scan_handler { + const struct acpi_device_id *ids; + struct list_head list_node; + int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); + void (*detach)(struct acpi_device *dev); +}; + +where ids is the list of IDs of device nodes the given handler is supposed to +take care of, list_node is the hook to the global list of ACPI scan handlers +maintained by the ACPI core and the .attach() and .detach() callbacks are +executed, respectively, after registration of new device nodes and before +unregistration of device nodes the handler attached to previously. + +The namespace scanning function, acpi_bus_scan(), first registers all of the +device nodes in the given namespace scope with the driver core. Then, it tries +to match a scan handler against each of them using the ids arrays of the +available scan handlers. If a matching scan handler is found, its .attach() +callback is executed for the given device node. If that callback returns 1, +that means that the handler has claimed the device node and is now responsible +for carrying out any additional configuration tasks related to it. It also will +be responsible for preparing the device node for unregistration in that case. +The device node's handler field is then populated with the address of the scan +handler that has claimed it. + +If the .attach() callback returns 0, it means that the device node is not +interesting to the given scan handler and may be matched against the next scan +handler in the list. If it returns a (negative) error code, that means that +the namespace scan should be terminated due to a serious error. The error code +returned should then reflect the type of the error. + +The namespace trimming function, acpi_bus_trim(), first executes .detach() +callbacks from the scan handlers of all device nodes in the given namespace +scope (if they have scan handlers). Next, it unregisters all of the device +nodes in that scope. + +ACPI scan handlers can be added to the list maintained by the ACPI core with the +help of the acpi_scan_add_handler() function taking a pointer to the new scan +handler as an argument. The order in which scan handlers are added to the list +is the order in which they are matched against device nodes during namespace +scans. + +All scan handles must be added to the list before acpi_bus_scan() is run for the +first time and they cannot be removed from it. diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index d758702fc03c..5f583af0a6e1 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -35,6 +35,8 @@ ffffffbc00000000 ffffffbdffffffff 8GB vmemmap ffffffbe00000000 ffffffbffbbfffff ~8GB [guard, future vmmemap] +ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk device + ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O space ffffffbbffff0000 ffffffbcffffffff ~2MB [guard] diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt index 27f2b21a9d5c..d9ca5be9b471 100644 --- a/Documentation/atomic_ops.txt +++ b/Documentation/atomic_ops.txt @@ -253,6 +253,8 @@ This performs an atomic exchange operation on the atomic variable v, setting the given new value. It returns the old value that the atomic variable v had just before the operation. +atomic_xchg requires explicit memory barriers around the operation. + int atomic_cmpxchg(atomic_t *v, int old, int new); This performs an atomic compare exchange operation on the atomic value v, diff --git a/Documentation/cgroups/00-INDEX b/Documentation/cgroups/00-INDEX index f78b90a35ad0..f5635a09c3f6 100644 --- a/Documentation/cgroups/00-INDEX +++ b/Documentation/cgroups/00-INDEX @@ -4,8 +4,6 @@ blkio-controller.txt - Description for Block IO Controller, implementation and usage details. cgroups.txt - Control Groups definition, implementation details, examples and API. -cgroup_event_listener.c - - A user program for cgroup listener. cpuacct.txt - CPU Accounting Controller; account CPU usage for groups of tasks. cpusets.txt diff --git a/Documentation/cgroups/cgroup_event_listener.c b/Documentation/cgroups/cgroup_event_listener.c deleted file mode 100644 index 3e082f96dc12..000000000000 --- a/Documentation/cgroups/cgroup_event_listener.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * cgroup_event_listener.c - Simple listener of cgroup events - * - * Copyright (C) Kirill A. Shutemov <kirill@shutemov.name> - */ - -#include <assert.h> -#include <errno.h> -#include <fcntl.h> -#include <libgen.h> -#include <limits.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include <sys/eventfd.h> - -#define USAGE_STR "Usage: cgroup_event_listener <path-to-control-file> <args>\n" - -int main(int argc, char **argv) -{ - int efd = -1; - int cfd = -1; - int event_control = -1; - char event_control_path[PATH_MAX]; - char line[LINE_MAX]; - int ret; - - if (argc != 3) { - fputs(USAGE_STR, stderr); - return 1; - } - - cfd = open(argv[1], O_RDONLY); - if (cfd == -1) { - fprintf(stderr, "Cannot open %s: %s\n", argv[1], - strerror(errno)); - goto out; - } - - ret = snprintf(event_control_path, PATH_MAX, "%s/cgroup.event_control", - dirname(argv[1])); - if (ret >= PATH_MAX) { - fputs("Path to cgroup.event_control is too long\n", stderr); - goto out; - } - - event_control = open(event_control_path, O_WRONLY); - if (event_control == -1) { - fprintf(stderr, "Cannot open %s: %s\n", event_control_path, - strerror(errno)); - goto out; - } - - efd = eventfd(0, 0); - if (efd == -1) { - perror("eventfd() failed"); - goto out; - } - - ret = snprintf(line, LINE_MAX, "%d %d %s", efd, cfd, argv[2]); - if (ret >= LINE_MAX) { - fputs("Arguments string is too long\n", stderr); - goto out; - } - - ret = write(event_control, line, strlen(line) + 1); - if (ret == -1) { - perror("Cannot write to cgroup.event_control"); - goto out; - } - - while (1) { - uint64_t result; - - ret = read(efd, &result, sizeof(result)); - if (ret == -1) { - if (errno == EINTR) - continue; - perror("Cannot read from eventfd"); - break; - } - assert(ret == sizeof(result)); - - ret = access(event_control_path, W_OK); - if ((ret == -1) && (errno == ENOENT)) { - puts("The cgroup seems to have removed."); - ret = 0; - break; - } - - if (ret == -1) { - perror("cgroup.event_control " - "is not accessible any more"); - break; - } - - printf("%s %s: crossed\n", argv[1], argv[2]); - } - -out: - if (efd >= 0) - close(efd); - if (event_control >= 0) - close(event_control); - if (cfd >= 0) - close(cfd); - - return (ret != 0); -} diff --git a/Documentation/cgroups/memcg_test.txt b/Documentation/cgroups/memcg_test.txt index fc8fa97a09ac..ce94a83a7d9a 100644 --- a/Documentation/cgroups/memcg_test.txt +++ b/Documentation/cgroups/memcg_test.txt @@ -399,8 +399,7 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y. 9.10 Memory thresholds Memory controller implements memory thresholds using cgroups notification - API. You can use Documentation/cgroups/cgroup_event_listener.c to test - it. + API. You can use tools/cgroup/cgroup_event_listener.c to test it. (Shell-A) Create cgroup and run event listener # mkdir /cgroup/A diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt index c436096351f8..72f70b16d299 100644 --- a/Documentation/cpu-freq/cpu-drivers.txt +++ b/Documentation/cpu-freq/cpu-drivers.txt @@ -111,6 +111,12 @@ policy->governor must contain the "default policy" for For setting some of these values, the frequency table helpers might be helpful. See the section 2 for more information on them. +SMP systems normally have same clock source for a group of cpus. For these the +.init() would be called only once for the first online cpu. Here the .init() +routine must initialize policy->cpus with mask of all possible cpus (Online + +Offline) that share the clock. Then the core would copy this mask onto +policy->related_cpus and will reset policy->cpus to carry only online cpus. + 1.3 verify ------------ diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt index 04f6b32993e6..ff2f28332cc4 100644 --- a/Documentation/cpu-freq/user-guide.txt +++ b/Documentation/cpu-freq/user-guide.txt @@ -190,11 +190,11 @@ scaling_max_freq show the current "policy limits" (in first set scaling_max_freq, then scaling_min_freq. -affected_cpus : List of CPUs that require software coordination - of frequency. +affected_cpus : List of Online CPUs that require software + coordination of frequency. -related_cpus : List of CPUs that need some sort of frequency - coordination, whether software or hardware. +related_cpus : List of Online + Offline CPUs that need software + coordination of frequency. scaling_driver : Hardware driver for cpufreq. diff --git a/Documentation/devicetree/bindings/arm/atmel-aic.txt b/Documentation/devicetree/bindings/arm/atmel-aic.txt index 19078bf5cca8..ad031211b5b8 100644 --- a/Documentation/devicetree/bindings/arm/atmel-aic.txt +++ b/Documentation/devicetree/bindings/arm/atmel-aic.txt @@ -4,7 +4,7 @@ Required properties: - compatible: Should be "atmel,<chip>-aic" - interrupt-controller: Identifies the node as an interrupt controller. - interrupt-parent: For single AIC system, it is an empty property. -- #interrupt-cells: The number of cells to define the interrupts. It sould be 3. +- #interrupt-cells: The number of cells to define the interrupts. It should be 3. The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet). The second cell is used to specify flags: bits[3:0] trigger type and level flags: diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt index 62eb8df1e08d..3dfb0c0384f5 100644 --- a/Documentation/devicetree/bindings/arm/gic.txt +++ b/Documentation/devicetree/bindings/arm/gic.txt @@ -42,7 +42,7 @@ Main node required properties: Optional - interrupts : Interrupt source of the parent interrupt controller on - secondary GICs, or VGIC maintainance interrupt on primary GIC (see + secondary GICs, or VGIC maintenance interrupt on primary GIC (see below). - cpu-offset : per-cpu offset within the distributor and cpu interface @@ -74,7 +74,7 @@ Required properties: virtual interface control register base and size. The 2nd additional region is the GIC virtual cpu interface register base and size. -- interrupts : VGIC maintainance interrupt. +- interrupts : VGIC maintenance interrupt. Example: diff --git a/Documentation/devicetree/bindings/arm/kirkwood.txt b/Documentation/devicetree/bindings/arm/kirkwood.txt new file mode 100644 index 000000000000..98cce9a653eb --- /dev/null +++ b/Documentation/devicetree/bindings/arm/kirkwood.txt @@ -0,0 +1,27 @@ +Marvell Kirkwood Platforms Device Tree Bindings +----------------------------------------------- + +Boards with a SoC of the Marvell Kirkwood +shall have the following property: + +Required root node property: + +compatible: must contain "marvell,kirkwood"; + +In order to support the kirkwood cpufreq driver, there must be a node +cpus/cpu@0 with three clocks, "cpu_clk", "ddrclk" and "powersave", +where the "powersave" clock is a gating clock used to switch the CPU +between the "cpu_clk" and the "ddrclk". + +Example: + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "marvell,sheeva-88SV131"; + clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>; + clock-names = "cpu_clk", "ddrclk", "powersave"; + }; diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt index d0051a750587..f8288ea1b530 100644 --- a/Documentation/devicetree/bindings/arm/omap/omap.txt +++ b/Documentation/devicetree/bindings/arm/omap/omap.txt @@ -39,16 +39,16 @@ Boards: - OMAP3 Tobi with Overo : Commercial expansion board with daughter board compatible = "ti,omap3-tobi", "ti,omap3-overo", "ti,omap3" -- OMAP4 SDP : Software Developement Board +- OMAP4 SDP : Software Development Board compatible = "ti,omap4-sdp", "ti,omap4430" - OMAP4 PandaBoard : Low cost community board compatible = "ti,omap4-panda", "ti,omap4430" -- OMAP3 EVM : Software Developement Board for OMAP35x, AM/DM37x +- OMAP3 EVM : Software Development Board for OMAP35x, AM/DM37x compatible = "ti,omap3-evm", "ti,omap3" -- AM335X EVM : Software Developement Board for AM335x +- AM335X EVM : Software Development Board for AM335x compatible = "ti,am335x-evm", "ti,am33xx", "ti,omap3" - AM335X Bone : Low cost community board diff --git a/Documentation/devicetree/bindings/arm/psci.txt b/Documentation/devicetree/bindings/arm/psci.txt new file mode 100644 index 000000000000..433afe9cb590 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/psci.txt @@ -0,0 +1,55 @@ +* Power State Coordination Interface (PSCI) + +Firmware implementing the PSCI functions described in ARM document number +ARM DEN 0022A ("Power State Coordination Interface System Software on ARM +processors") can be used by Linux to initiate various CPU-centric power +operations. + +Issue A of the specification describes functions for CPU suspend, hotplug +and migration of secure software. + +Functions are invoked by trapping to the privilege level of the PSCI +firmware (specified as part of the binding below) and passing arguments +in a manner similar to that specified by AAPCS: + + r0 => 32-bit Function ID / return value + {r1 - r3} => Parameters + +Note that the immediate field of the trapping instruction must be set +to #0. + + +Main node required properties: + + - compatible : Must be "arm,psci" + + - method : The method of calling the PSCI firmware. Permitted + values are: + + "smc" : SMC #0, with the register assignments specified + in this binding. + + "hvc" : HVC #0, with the register assignments specified + in this binding. + +Main node optional properties: + + - cpu_suspend : Function ID for CPU_SUSPEND operation + + - cpu_off : Function ID for CPU_OFF operation + + - cpu_on : Function ID for CPU_ON operation + + - migrate : Function ID for MIGRATE operation + + +Example: + + psci { + compatible = "arm,psci"; + method = "smc"; + cpu_suspend = <0x95c10000>; + cpu_off = <0x95c10001>; + cpu_on = <0x95c10002>; + migrate = <0x95c10003>; + }; diff --git a/Documentation/devicetree/bindings/clock/prima2-clock.txt b/Documentation/devicetree/bindings/clock/prima2-clock.txt new file mode 100644 index 000000000000..5016979c0f78 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/prima2-clock.txt @@ -0,0 +1,73 @@ +* Clock bindings for CSR SiRFprimaII + +Required properties: +- compatible: Should be "sirf,prima2-clkc" +- reg: Address and length of the register set +- interrupts: Should contain clock controller interrupt +- #clock-cells: Should be <1> + +The clock consumer should specify the desired clock by having the clock +ID in its "clocks" phandle cell. The following is a full list of prima2 +clocks and IDs. + + Clock ID + --------------------------- + rtc 0 + osc 1 + pll1 2 + pll2 3 + pll3 4 + mem 5 + sys 6 + security 7 + dsp 8 + gps 9 + mf 10 + io 11 + cpu 12 + uart0 13 + uart1 14 + uart2 15 + tsc 16 + i2c0 17 + i2c1 18 + spi0 19 + spi1 20 + pwmc 21 + efuse 22 + pulse 23 + dmac0 24 + dmac1 25 + nand 26 + audio 27 + usp0 28 + usp1 29 + usp2 30 + vip 31 + gfx 32 + mm 33 + lcd 34 + vpp 35 + mmc01 36 + mmc23 37 + mmc45 38 + usbpll 39 + usb0 40 + usb1 41 + +Examples: + +clks: clock-controller@88000000 { + compatible = "sirf,prima2-clkc"; + reg = <0x88000000 0x1000>; + interrupts = <3>; + #clock-cells = <1>; +}; + +i2c0: i2c@b00e0000 { + cell-index = <0>; + compatible = "sirf,prima2-i2c"; + reg = <0xb00e0000 0x10000>; + interrupts = <24>; + clocks = <&clks 17>; +}; diff --git a/Documentation/devicetree/bindings/drm/exynos/g2d.txt b/Documentation/devicetree/bindings/drm/exynos/g2d.txt new file mode 100644 index 000000000000..1eb124d35a99 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/exynos/g2d.txt @@ -0,0 +1,22 @@ +Samsung 2D Graphic Accelerator using DRM frame work + +Samsung FIMG2D is a graphics 2D accelerator which supports Bit Block Transfer. +We set the drawing-context registers for configuring rendering parameters and +then start rendering. +This driver is for SOCs which contain G2D IPs with version 4.1. + +Required properties: + -compatible: + should be "samsung,exynos-g2d-41". + -reg: + physical base address of the controller and length + of memory mapped region. + -interrupts: + interrupt combiner values. + +Example: + g2d { + compatible = "samsung,exynos-g2d-41"; + reg = <0x10850000 0x1000>; + interrupts = <0 91 0>; + }; diff --git a/Documentation/devicetree/bindings/i2c/ina209.txt b/Documentation/devicetree/bindings/i2c/ina209.txt new file mode 100644 index 000000000000..9dd2bee80840 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/ina209.txt @@ -0,0 +1,18 @@ +ina209 properties + +Required properties: +- compatible: Must be "ti,ina209" +- reg: I2C address + +Optional properties: + +- shunt-resistor + Shunt resistor value in micro-Ohm + +Example: + +temp-sensor@4c { + compatible = "ti,ina209"; + reg = <0x4c>; + shunt-resistor = <5000>; +}; diff --git a/Documentation/devicetree/bindings/i2c/max6697.txt b/Documentation/devicetree/bindings/i2c/max6697.txt new file mode 100644 index 000000000000..5f793998e4a4 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/max6697.txt @@ -0,0 +1,64 @@ +max6697 properties + +Required properties: +- compatible: + Should be one of + maxim,max6581 + maxim,max6602 + maxim,max6622 + maxim,max6636 + maxim,max6689 + maxim,max6693 + maxim,max6694 + maxim,max6697 + maxim,max6698 + maxim,max6699 +- reg: I2C address + +Optional properties: + +- smbus-timeout-disable + Set to disable SMBus timeout. If not specified, SMBus timeout will be + enabled. +- extended-range-enable + Only valid for MAX6581. Set to enable extended temperature range. + Extended temperature will be disabled if not specified. +- beta-compensation-enable + Only valid for MAX6693 and MX6694. Set to enable beta compensation on + remote temperature channel 1. + Beta compensation will be disabled if not specified. +- alert-mask + Alert bit mask. Alert disabled for bits set. + Select bit 0 for local temperature, bit 1..7 for remote temperatures. + If not specified, alert will be enabled for all channels. +- over-temperature-mask + Over-temperature bit mask. Over-temperature reporting disabled for + bits set. + Select bit 0 for local temperature, bit 1..7 for remote temperatures. + If not specified, over-temperature reporting will be enabled for all + channels. +- resistance-cancellation + Boolean for all chips other than MAX6581. Set to enable resistance + cancellation on remote temperature channel 1. + For MAX6581, resistance cancellation enabled for all channels if + specified as boolean, otherwise as per bit mask specified. + Only supported for remote temperatures (bit 1..7). + If not specified, resistance cancellation will be disabled for all + channels. +- transistor-ideality + For MAX6581 only. Two values; first is bit mask, second is ideality + select value as per MAX6581 data sheet. Select bit 1..7 for remote + channels. + Transistor ideality will be initialized to default (1.008) if not + specified. + +Example: + +temp-sensor@1a { + compatible = "maxim,max6697"; + reg = <0x1a>; + smbus-timeout-disable; + resistance-cancellation; + alert-mask = <0x72>; + over-temperature-mask = <0x7f>; +}; diff --git a/Documentation/devicetree/bindings/input/imx-keypad.txt b/Documentation/devicetree/bindings/input/imx-keypad.txt new file mode 100644 index 000000000000..2ebaf7d26843 --- /dev/null +++ b/Documentation/devicetree/bindings/input/imx-keypad.txt @@ -0,0 +1,53 @@ +* Freescale i.MX Keypad Port(KPP) device tree bindings + +The KPP is designed to interface with a keypad matrix with 2-point contact +or 3-point contact keys. The KPP is designed to simplify the software task +of scanning a keypad matrix. The KPP is capable of detecting, debouncing, +and decoding one or multiple keys pressed simultaneously on a keypad. + +Required SoC Specific Properties: +- compatible: Should be "fsl,<soc>-kpp". + +- reg: Physical base address of the KPP and length of memory mapped + region. + +- interrupts: The KPP interrupt number to the CPU(s). + +- clocks: The clock provided by the SoC to the KPP. Some SoCs use dummy +clock(The clock for the KPP is provided by the SoCs automatically). + +Required Board Specific Properties: +- pinctrl-names: The definition can be found at +pinctrl/pinctrl-bindings.txt. + +- pinctrl-0: The definition can be found at +pinctrl/pinctrl-bindings.txt. + +- linux,keymap: The definition can be found at +bindings/input/matrix-keymap.txt. + +Example: +kpp: kpp@73f94000 { + compatible = "fsl,imx51-kpp", "fsl,imx21-kpp"; + reg = <0x73f94000 0x4000>; + interrupts = <60>; + clocks = <&clks 0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_kpp_1>; + linux,keymap = <0x00000067 /* KEY_UP */ + 0x0001006c /* KEY_DOWN */ + 0x00020072 /* KEY_VOLUMEDOWN */ + 0x00030066 /* KEY_HOME */ + 0x0100006a /* KEY_RIGHT */ + 0x01010069 /* KEY_LEFT */ + 0x0102001c /* KEY_ENTER */ + 0x01030073 /* KEY_VOLUMEUP */ + 0x02000040 /* KEY_F6 */ + 0x02010042 /* KEY_F8 */ + 0x02020043 /* KEY_F9 */ + 0x02030044 /* KEY_F10 */ + 0x0300003b /* KEY_F1 */ + 0x0301003c /* KEY_F2 */ + 0x0302003d /* KEY_F3 */ + 0x03030074>; /* KEY_POWER */ +}; diff --git a/Documentation/devicetree/bindings/input/lpc32xx-key.txt b/Documentation/devicetree/bindings/input/lpc32xx-key.txt index 31afd5014c48..bcf62f856358 100644 --- a/Documentation/devicetree/bindings/input/lpc32xx-key.txt +++ b/Documentation/devicetree/bindings/input/lpc32xx-key.txt @@ -1,19 +1,22 @@ NXP LPC32xx Key Scan Interface +This binding is based on the matrix-keymap binding with the following +changes: + Required Properties: - compatible: Should be "nxp,lpc3220-key" - reg: Physical base address of the controller and length of memory mapped region. - interrupts: The interrupt number to the cpu. -- keypad,num-rows: Number of rows and columns, e.g. 1: 1x1, 6: 6x6 -- keypad,num-columns: Must be equal to keypad,num-rows since LPC32xx only - supports square matrices - nxp,debounce-delay-ms: Debounce delay in ms - nxp,scan-delay-ms: Repeated scan period in ms - linux,keymap: the key-code to be reported when the key is pressed and released, see also Documentation/devicetree/bindings/input/matrix-keymap.txt +Note: keypad,num-rows and keypad,num-columns are required, and must be equal +since LPC32xx only supports square matrices + Example: key@40050000 { diff --git a/Documentation/devicetree/bindings/input/matrix-keymap.txt b/Documentation/devicetree/bindings/input/matrix-keymap.txt index 3cd8b98ccd2d..c54919fad17e 100644 --- a/Documentation/devicetree/bindings/input/matrix-keymap.txt +++ b/Documentation/devicetree/bindings/input/matrix-keymap.txt @@ -9,6 +9,12 @@ Required properties: row << 24 | column << 16 | key-code Optional properties: +Properties for the number of rows and columns are optional because some +drivers will use fixed values for these. +- keypad,num-rows: Number of row lines connected to the keypad controller. +- keypad,num-columns: Number of column lines connected to the keypad + controller. + Some users of this binding might choose to specify secondary keymaps for cases where there is a modifier key such as a Fn key. Proposed names for said properties are "linux,fn-keymap" or with another descriptive @@ -17,3 +23,5 @@ word for the modifier other from "Fn". Example: linux,keymap = < 0x00030012 0x0102003a >; + keypad,num-rows = <2>; + keypad,num-columns = <8>; diff --git a/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt b/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt index 72683be6de35..2995fae7ee47 100644 --- a/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt +++ b/Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt @@ -1,7 +1,18 @@ * Tegra keyboard controller +The key controller has maximum 24 pins to make matrix keypad. Any pin +can be configured as row or column. The maximum column pin can be 8 +and maximum row pins can be 16 for Tegra20/Tegra30. Required properties: - compatible: "nvidia,tegra20-kbc" +- reg: Register base address of KBC. +- interrupts: Interrupt number for the KBC. +- nvidia,kbc-row-pins: The KBC pins which are configured as row. This is an + array of pin numbers which is used as rows. +- nvidia,kbc-col-pins: The KBC pins which are configured as column. This is an + array of pin numbers which is used as column. +- linux,keymap: The keymap for keys as described in the binding document + devicetree/bindings/input/matrix-keymap.txt. Optional properties, in addition to those specified by the shared matrix-keyboard bindings: @@ -19,5 +30,16 @@ Example: keyboard: keyboard { compatible = "nvidia,tegra20-kbc"; reg = <0x7000e200 0x100>; + interrupts = <0 85 0x04>; nvidia,ghost-filter; + nvidia,debounce-delay-ms = <640>; + nvidia,kbc-row-pins = <0 1 2>; /* pin 0, 1, 2 as rows */ + nvidia,kbc-col-pins = <11 12 13>; /* pin 11, 12, 13 as columns */ + linux,keymap = <0x00000074 + 0x00010067 + 0x00020066 + 0x01010068 + 0x02000069 + 0x02010070 + 0x02020071>; }; diff --git a/Documentation/devicetree/bindings/input/omap-keypad.txt b/Documentation/devicetree/bindings/input/omap-keypad.txt index f2fa5e10493d..34ed1c60ff95 100644 --- a/Documentation/devicetree/bindings/input/omap-keypad.txt +++ b/Documentation/devicetree/bindings/input/omap-keypad.txt @@ -6,19 +6,16 @@ A key can be placed at each intersection of a unique row and a unique column. The keypad controller can sense a key-press and key-release and report the event using a interrupt to the cpu. +This binding is based on the matrix-keymap binding with the following +changes: + +keypad,num-rows and keypad,num-columns are required. + Required SoC Specific Properties: - compatible: should be one of the following - "ti,omap4-keypad": For controllers compatible with omap4 keypad controller. -Required Board Specific Properties, in addition to those specified by -the shared matrix-keyboard bindings: -- keypad,num-rows: Number of row lines connected to the keypad - controller. - -- keypad,num-columns: Number of column lines connected to the - keypad controller. - Optional Properties specific to linux: - linux,keypad-no-autorepeat: do no enable autorepeat feature. diff --git a/Documentation/devicetree/bindings/input/tca8418_keypad.txt b/Documentation/devicetree/bindings/input/tca8418_keypad.txt index 2a1538f0053f..255185009167 100644 --- a/Documentation/devicetree/bindings/input/tca8418_keypad.txt +++ b/Documentation/devicetree/bindings/input/tca8418_keypad.txt @@ -1,8 +1,10 @@ +This binding is based on the matrix-keymap binding with the following +changes: + +keypad,num-rows and keypad,num-columns are required. Required properties: - compatible: "ti,tca8418" - reg: the I2C address - interrupts: IRQ line number, should trigger on falling edge -- keypad,num-rows: The number of rows -- keypad,num-columns: The number of columns - linux,keymap: Keys definitions, see keypad-matrix. diff --git a/Documentation/devicetree/bindings/gpio/leds-ns2.txt b/Documentation/devicetree/bindings/leds/leds-ns2.txt index aef3aca34d2d..aef3aca34d2d 100644 --- a/Documentation/devicetree/bindings/gpio/leds-ns2.txt +++ b/Documentation/devicetree/bindings/leds/leds-ns2.txt diff --git a/Documentation/devicetree/bindings/mfd/tps6507x.txt b/Documentation/devicetree/bindings/mfd/tps6507x.txt new file mode 100755 index 000000000000..8fffa3c5ed40 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/tps6507x.txt @@ -0,0 +1,91 @@ +TPS6507x Power Management Integrated Circuit + +Required properties: +- compatible: "ti,tps6507x" +- reg: I2C slave address +- regulators: This is the list of child nodes that specify the regulator + initialization data for defined regulators. Not all regulators for the + given device need to be present. The definition for each of these nodes + is defined using the standard binding for regulators found at + Documentation/devicetree/bindings/regulator/regulator.txt. + The regulator is matched with the regulator-compatible. + + The valid regulator-compatible values are: + tps6507x: vdcdc1, vdcdc2, vdcdc3, vldo1, vldo2 +- xxx-supply: Input voltage supply regulator. + These entries are required if regulators are enabled for a device. + Missing of these properties can cause the regulator registration + fails. + If some of input supply is powered through battery or always-on + supply then also it is require to have these parameters with proper + node handle of always on power supply. + tps6507x: + vindcdc1_2-supply: VDCDC1 and VDCDC2 input. + vindcdc3-supply : VDCDC3 input. + vldo1_2-supply : VLDO1 and VLDO2 input. + +Regulator Optional properties: +- defdcdc_default: It's property of DCDC2 and DCDC3 regulators. + 0: If defdcdc pin of DCDC2/DCDC3 is pulled to GND. + 1: If defdcdc pin of DCDC2/DCDC3 is driven HIGH. + If this property is not defined, it defaults to 0 (not enabled). + +Example: + + pmu: tps6507x@48 { + compatible = "ti,tps6507x"; + reg = <0x48>; + + vindcdc1_2-supply = <&vbat>; + vindcdc3-supply = <...>; + vinldo1_2-supply = <...>; + + regulators { + #address-cells = <1>; + #size-cells = <0>; + + vdcdc1_reg: regulator@0 { + regulator-compatible = "VDCDC1"; + reg = <0>; + regulator-min-microvolt = <3150000>; + regulator-max-microvolt = <3450000>; + regulator-always-on; + regulator-boot-on; + }; + vdcdc2_reg: regulator@1 { + regulator-compatible = "VDCDC2"; + reg = <1>; + regulator-min-microvolt = <1710000>; + regulator-max-microvolt = <3450000>; + regulator-always-on; + regulator-boot-on; + defdcdc_default = <1>; + }; + vdcdc3_reg: regulator@2 { + regulator-compatible = "VDCDC3"; + reg = <2>; + regulator-min-microvolt = <950000> + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + defdcdc_default = <1>; + }; + ldo1_reg: regulator@3 { + regulator-compatible = "LDO1"; + reg = <3>; + regulator-min-microvolt = <1710000>; + regulator-max-microvolt = <1890000>; + regulator-always-on; + regulator-boot-on; + }; + ldo2_reg: regulator@4 { + regulator-compatible = "LDO2"; + reg = <4>; + regulator-min-microvolt = <1140000>; + regulator-max-microvolt = <1320000>; + regulator-always-on; + regulator-boot-on; + }; + }; + + }; diff --git a/Documentation/devicetree/bindings/mips/cavium/dma-engine.txt b/Documentation/devicetree/bindings/mips/cavium/dma-engine.txt index cb4291e3b1d1..a5bdff400002 100644 --- a/Documentation/devicetree/bindings/mips/cavium/dma-engine.txt +++ b/Documentation/devicetree/bindings/mips/cavium/dma-engine.txt @@ -1,7 +1,7 @@ * DMA Engine. The Octeon DMA Engine transfers between the Boot Bus and main memory. -The DMA Engine will be refered to by phandle by any device that is +The DMA Engine will be referred to by phandle by any device that is connected to it. Properties: diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt index 792768953330..6d1c0988cfc7 100644 --- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt @@ -4,18 +4,18 @@ The Synopsis designware mobile storage host controller is used to interface a SoC with storage medium such as eMMC or SD/MMC cards. This file documents differences between the core Synopsis dw mshc controller properties described -by synposis-dw-mshc.txt and the properties used by the Samsung Exynos specific +by synopsis-dw-mshc.txt and the properties used by the Samsung Exynos specific extensions to the Synopsis Designware Mobile Storage Host Controller. Required Properties: * compatible: should be - "samsung,exynos4210-dw-mshc": for controllers with Samsung Exynos4210 - specific extentions. + specific extensions. - "samsung,exynos4412-dw-mshc": for controllers with Samsung Exynos4412 - specific extentions. + specific extensions. - "samsung,exynos5250-dw-mshc": for controllers with Samsung Exynos5250 - specific extentions. + specific extensions. * samsung,dw-mshc-ciu-div: Specifies the divider value for the card interface unit (ciu) clock. This property is applicable only for Exynos5 SoC's and diff --git a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt b/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt index 97e9e315400d..3b3a1ee055ff 100644 --- a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt @@ -55,5 +55,5 @@ Example: }; Note: This example shows both SoC specific and board specific properties - in a single device node. The properties can be actually be seperated + in a single device node. The properties can be actually be separated into SoC specific node and board specific node. diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index 6ddd0286a9b7..ecfdf756d10f 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -24,6 +24,8 @@ Required properties: Optional properties: - ti,hwmods : Must be "cpgmac0" - no_bd_ram : Must be 0 or 1 +- dual_emac : Specifies Switch to act as Dual EMAC +- dual_emac_res_vlan : Specifies VID to be used to segregate the ports Note: "ti,hwmods" field is used to fetch the base address and irq resources from TI, omap hwmod data base during device registration. diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt new file mode 100644 index 000000000000..dff0e5f995e2 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -0,0 +1,60 @@ +* Allwinner A1X Pin Controller + +The pins controlled by sunXi pin controller are organized in banks, +each bank has 32 pins. Each pin has 7 multiplexing functions, with +the first two functions being GPIO in and out. The configuration on +the pins includes drive strength and pull-up. + +Required properties: +- compatible: "allwinner,<soc>-pinctrl". Supported SoCs for now are: + sun5i-a13. +- reg: Should contain the register physical address and length for the + pin controller. + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices. + +A pinctrl node should contain at least one subnodes representing the +pinctrl groups available on the machine. Each subnode will list the +pins it needs, and how they should be configured, with regard to muxer +configuration, drive strength and pullups. If one of these options is +not set, its actual value will be unspecified. + +Required subnode-properties: + +- allwinner,pins: List of strings containing the pin name. +- allwinner,function: Function to mux the pins listed above to. + +Optional subnode-properties: +- allwinner,drive: Integer. Represents the current sent to the pin + 0: 10 mA + 1: 20 mA + 2: 30 mA + 3: 40 mA +- allwinner,pull: Integer. + 0: No resistor + 1: Pull-up resistor + 2: Pull-down resistor + +Examples: + +pinctrl@01c20800 { + compatible = "allwinner,sun5i-a13-pinctrl"; + reg = <0x01c20800 0x400>; + #address-cells = <1>; + #size-cells = <0>; + + uart1_pins_a: uart1@0 { + allwinner,pins = "PE10", "PE11"; + allwinner,function = "uart1"; + allwinner,drive = <0>; + allwinner,pull = <0>; + }; + + uart1_pins_b: uart1@1 { + allwinner,pins = "PG3", "PG4"; + allwinner,function = "uart1"; + allwinner,drive = <0>; + allwinner,pull = <0>; + }; +}; diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra114-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra114-pinmux.txt new file mode 100644 index 000000000000..e204d009f16c --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra114-pinmux.txt @@ -0,0 +1,120 @@ +NVIDIA Tegra114 pinmux controller + +The Tegra114 pinctrl binding is very similar to the Tegra20 and Tegra30 +pinctrl binding, as described in nvidia,tegra20-pinmux.txt and +nvidia,tegra30-pinmux.txt. In fact, this document assumes that binding as +a baseline, and only documents the differences between the two bindings. + +Required properties: +- compatible: "nvidia,tegra114-pinmux" +- reg: Should contain the register physical address and length for each of + the pad control and mux registers. The first bank of address must be the + driver strength pad control register address and second bank address must + be pinmux register address. + +Tegra114 adds the following optional properties for pin configuration subnodes: +- nvidia,enable-input: Integer. Enable the pin's input path. 0: no, 1: yes. +- nvidia,open-drain: Integer. Enable open drain mode. 0: no, 1: yes. +- nvidia,lock: Integer. Lock the pin configuration against further changes + until reset. 0: no, 1: yes. +- nvidia,io-reset: Integer. Reset the IO path. 0: no, 1: yes. +- nvidia,rcv-sel: Integer. Select VIL/VIH receivers. 0: normal, 1: high. +- nvidia,drive-type: Integer. Valid range 0...3. + +As with Tegra20 and Terga30, see the Tegra TRM for complete details regarding +which groups support which functionality. + +Valid values for pin and group names are: + + per-pin mux groups: + + These all support nvidia,function, nvidia,tristate, nvidia,pull, + nvidia,enable-input, nvidia,lock. Some support nvidia,open-drain, + nvidia,io-reset and nvidia,rcv-sel. + + ulpi_data0_po1, ulpi_data1_po2, ulpi_data2_po3, ulpi_data3_po4, + ulpi_data4_po5, ulpi_data5_po6, ulpi_data6_po7, ulpi_data7_po0, + ulpi_clk_py0, ulpi_dir_py1, ulpi_nxt_py2, ulpi_stp_py3, dap3_fs_pp0, + dap3_din_pp1, dap3_dout_pp2, dap3_sclk_pp3, pv0, pv1, sdmmc1_clk_pz0, + sdmmc1_cmd_pz1, sdmmc1_dat3_py4, sdmmc1_dat2_py5, sdmmc1_dat1_py6, + sdmmc1_dat0_py7, clk2_out_pw5, clk2_req_pcc5, hdmi_int_pn7, ddc_scl_pv4, + ddc_sda_pv5, uart2_rxd_pc3, uart2_txd_pc2, uart2_rts_n_pj6, + uart2_cts_n_pj5, uart3_txd_pw6, uart3_rxd_pw7, uart3_cts_n_pa1, + uart3_rts_n_pc0, pu0, pu1, pu2, pu3, pu4, pu5, pu6, gen1_i2c_sda_pc5, + gen1_i2c_scl_pc4, dap4_fs_pp4, dap4_din_pp5, dap4_dout_pp6, dap4_sclk_pp7, + clk3_out_pee0, clk3_req_pee1, gmi_wp_n_pc7, gmi_iordy_pi5, gmi_wait_pi7, + gmi_adv_n_pk0, gmi_clk_pk1, gmi_cs0_n_pj0, gmi_cs1_n_pj2, gmi_cs2_n_pk3, + gmi_cs3_n_pk4, gmi_cs4_n_pk2, gmi_cs6_n_pi3, gmi_cs7_n_pi6, gmi_ad0_pg0, + gmi_ad1_pg1, gmi_ad2_pg2, gmi_ad3_pg3, gmi_ad4_pg4, gmi_ad5_pg5, + gmi_ad6_pg6, gmi_ad7_pg7, gmi_ad8_ph0, gmi_ad9_ph1, gmi_ad10_ph2, + gmi_ad11_ph3, gmi_ad12_ph4, gmi_ad13_ph5, gmi_ad14_ph6, gmi_ad15_ph7, + gmi_a16_pj7, gmi_a17_pb0, gmi_a18_pb1, gmi_a19_pk7, gmi_wr_n_pi0, + gmi_oe_n_pi1, gmi_dqs_p_pj3, gmi_rst_n_pi4, gen2_i2c_scl_pt5, + gen2_i2c_sda_pt6, sdmmc4_clk_pcc4, sdmmc4_cmd_pt7, sdmmc4_dat0_paa0, + sdmmc4_dat1_paa1, sdmmc4_dat2_paa2, sdmmc4_dat3_paa3, sdmmc4_dat4_paa4, + sdmmc4_dat5_paa5, sdmmc4_dat6_paa6, sdmmc4_dat7_paa7, cam_mclk_pcc0, + pcc1, pbb0, cam_i2c_scl_pbb1, cam_i2c_sda_pbb2, pbb3, pbb4, pbb5, pbb6, + pbb7, pcc2, pwr_i2c_scl_pz6, pwr_i2c_sda_pz7, kb_row0_pr0, kb_row1_pr1, + kb_row2_pr2, kb_row3_pr3, kb_row4_pr4, kb_row5_pr5, kb_row6_pr6, + kb_row7_pr7, kb_row8_ps0, kb_row9_ps1, kb_row10_ps2, kb_col0_pq0, + kb_col1_pq1, kb_col2_pq2, kb_col3_pq3, kb_col4_pq4, kb_col5_pq5, + kb_col6_pq6, kb_col7_pq7, clk_32k_out_pa0, sys_clk_req_pz5, core_pwr_req, + cpu_pwr_req, pwr_int_n, owr, dap1_fs_pn0, dap1_din_pn1, dap1_dout_pn2, + dap1_sclk_pn3, clk1_req_pee2, clk1_out_pw4, spdif_in_pk6, spdif_out_pk5, + dap2_fs_pa2, dap2_din_pa4, dap2_dout_pa5, dap2_sclk_pa3, dvfs_pwm_px0, + gpio_x1_aud_px1, gpio_x3_aud_px3, dvfs_clk_px2, gpio_x4_aud_px4, + gpio_x5_aud_px5, gpio_x6_aud_px6, gpio_x7_aud_px7, sdmmc3_clk_pa6, + sdmmc3_cmd_pa7, sdmmc3_dat0_pb7, sdmmc3_dat1_pb6, sdmmc3_dat2_pb5, + sdmmc3_dat3_pb4, hdmi_cec_pee3, sdmmc1_wp_n_pv3, sdmmc3_cd_n_pv2, + gpio_w2_aud_pw2, gpio_w3_aud_pw3, usb_vbus_en0_pn4, usb_vbus_en1_pn5, + sdmmc3_clk_lb_in_pee5, sdmmc3_clk_lb_out_pee4, reset_out_n. + + drive groups: + + These all support nvidia,pull-down-strength, nvidia,pull-up-strength, + nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all + support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode + and nvidia,drive-type. + + ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, dap1, dap2, dap3, dap4, + dbg, sdio3, spi, uaa, uab, uart2, uart3, sdio1, ddc, gma, gme, gmf, gmg, + gmh, owr, uda. + +Example: + + pinmux: pinmux { + compatible = "nvidia,tegra114-pinmux"; + reg = <0x70000868 0x148 /* Pad control registers */ + 0x70003000 0x40c>; /* PinMux registers */ + }; + +Example board file extract: + + pinctrl { + sdmmc4_default: pinmux { + sdmmc4_clk_pcc4 { + nvidia,pins = "sdmmc4_clk_pcc4", + nvidia,function = "sdmmc4"; + nvidia,pull = <0>; + nvidia,tristate = <0>; + }; + sdmmc4_dat0_paa0 { + nvidia,pins = "sdmmc4_dat0_paa0", + "sdmmc4_dat1_paa1", + "sdmmc4_dat2_paa2", + "sdmmc4_dat3_paa3", + "sdmmc4_dat4_paa4", + "sdmmc4_dat5_paa5", + "sdmmc4_dat6_paa6", + "sdmmc4_dat7_paa7"; + nvidia,function = "sdmmc4"; + nvidia,pull = <2>; + nvidia,tristate = <0>; + }; + }; + }; + + sdhci@78000400 { + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc4_default>; + }; diff --git a/Documentation/devicetree/bindings/pinctrl/ste,nomadik.txt b/Documentation/devicetree/bindings/pinctrl/ste,nomadik.txt new file mode 100644 index 000000000000..9a2f3f420526 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/ste,nomadik.txt @@ -0,0 +1,140 @@ +ST Ericsson Nomadik pinmux controller + +Required properties: +- compatible: "stericsson,nmk-pinctrl", "stericsson,nmk-pinctrl-db8540", + "stericsson,nmk-pinctrl-stn8815" +- reg: Should contain the register physical address and length of the PRCMU. + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the meaning of the +phrase "pin configuration node". + +ST Ericsson's pin configuration nodes act as a container for an arbitrary number of +subnodes. Each of these subnodes represents some desired configuration for a +pin, a group, or a list of pins or groups. This configuration can include the +mux function to select on those pin(s)/group(s), and various pin configuration +parameters, such as input, output, pull up, pull down... + +The name of each subnode is not important; all subnodes should be enumerated +and processed purely based on their content. + +Required subnode-properties: +- ste,pins : An array of strings. Each string contains the name of a pin or + group. + +Optional subnode-properties: +- ste,function: A string containing the name of the function to mux to the + pin or group. + +- ste,config: Handle of pin configuration node (e.g. ste,config = <&slpm_in_wkup_pdis>) + +- ste,input : <0/1/2> + 0: input with no pull + 1: input with pull up, + 2: input with pull down, + +- ste,output: <0/1/2> + 0: output low, + 1: output high, + 2: output (value is not specified). + +- ste,sleep: <0/1> + 0: sleep mode disable, + 1: sleep mode enable. + +- ste,sleep-input: <0/1/2/3> + 0: sleep input with no pull, + 1: sleep input with pull up, + 2: sleep input with pull down. + 3: sleep input and keep last input configuration (no pull, pull up or pull down). + +- ste,sleep-output: <0/1/2> + 0: sleep output low, + 1: sleep output high, + 2: sleep output (value is not specified). + +- ste,sleep-gpio: <0/1> + 0: disable sleep gpio mode, + 1: enable sleep gpio mode. + +- ste,sleep-wakeup: <0/1> + 0: wake-up detection enabled, + 1: wake-up detection disabled. + +- ste,sleep-pull-disable: <0/1> + 0: GPIO pull-up or pull-down resistor is enabled, when pin is an input, + 1: GPIO pull-up and pull-down resistor are disabled. + +Example board file extract: + + pinctrl@80157000 { + compatible = "stericsson,nmk-pinctrl"; + reg = <0x80157000 0x2000>; + + pinctrl-names = "default"; + + slpm_in_wkup_pdis: slpm_in_wkup_pdis { + ste,sleep = <1>; + ste,sleep-input = <3>; + ste,sleep-wakeup = <1>; + ste,sleep-pull-disable = <0>; + }; + + slpm_out_hi_wkup_pdis: slpm_out_hi_wkup_pdis { + ste,sleep = <1>; + ste,sleep-output = <1>; + ste,sleep-wakeup = <1>; + ste,sleep-pull-disable = <0>; + }; + + slpm_out_wkup_pdis: slpm_out_wkup_pdis { + ste,sleep = <1>; + ste,sleep-output = <2>; + ste,sleep-wakeup = <1>; + ste,sleep-pull-disable = <0>; + }; + + uart0 { + uart0_default_mux: uart0_mux { + u0_default_mux { + ste,function = "u0"; + ste,pins = "u0_a_1"; + }; + }; + uart0_default_mode: uart0_default { + uart0_default_cfg1 { + ste,pins = "GPIO0", "GPIO2"; + ste,input = <1>; + }; + + uart0_default_cfg2 { + ste,pins = "GPIO1", "GPIO3"; + ste,output = <1>; + }; + }; + uart0_sleep_mode: uart0_sleep { + uart0_sleep_cfg1 { + ste,pins = "GPIO0", "GPIO2"; + ste,config = <&slpm_in_wkup_pdis>; + }; + uart0_sleep_cfg2 { + ste,pins = "GPIO1"; + ste,config = <&slpm_out_hi_wkup_pdis>; + }; + uart0_sleep_cfg3 { + ste,pins = "GPIO3"; + ste,config = <&slpm_out_wkup_pdis>; + }; + }; + }; + }; + + uart@80120000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x80120000 0x1000>; + interrupts = <0 11 0x4>; + + pinctrl-names = "default","sleep"; + pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>; + pinctrl-1 = <&uart0_sleep_mode>; + }; diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt new file mode 100644 index 000000000000..9a599d27bd75 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt @@ -0,0 +1,13 @@ +* QNAP Power Off + +QNAP NAS devices have a microcontroller controlling the main power +supply. This microcontroller is connected to UART1 of the Kirkwood and +Orion5x SoCs. Sending the charactor 'A', at 19200 baud, tells the +microcontroller to turn the power off. This driver adds a handler to +pm_power_off which is called to turn the power off. + +Required Properties: +- compatible: Should be "qnap,power-off" + +- reg: Address and length of the register set for UART1 +- clocks: tclk clock diff --git a/Documentation/devicetree/bindings/power_supply/restart-poweroff.txt b/Documentation/devicetree/bindings/power_supply/restart-poweroff.txt new file mode 100644 index 000000000000..5776e684afda --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/restart-poweroff.txt @@ -0,0 +1,8 @@ +* Restart Power Off + +Buffalo Linkstation LS-XHL and LS-CHLv2, and other devices power off +by restarting and letting u-boot keep hold of the machine until the +user presses a button. + +Required Properties: +- compatible: Should be "restart-poweroff" diff --git a/Documentation/devicetree/bindings/powerpc/fsl/srio.txt b/Documentation/devicetree/bindings/powerpc/fsl/srio.txt index b039bcbee134..07abf0f2f440 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/srio.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/srio.txt @@ -8,9 +8,9 @@ Properties: Definition: Must include "fsl,srio" for IP blocks with IP Block Revision Register (SRIO IPBRR1) Major ID equal to 0x01c0. - Optionally, a compatiable string of "fsl,srio-vX.Y" where X is Major + Optionally, a compatible string of "fsl,srio-vX.Y" where X is Major version in IP Block Revision Register and Y is Minor version. If this - compatiable is provided it should be ordered before "fsl,srio". + compatible is provided it should be ordered before "fsl,srio". - reg Usage: required diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt index 357758cb6e92..758eae24082a 100644 --- a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt @@ -9,6 +9,11 @@ Required properties: - anatop-min-voltage: Minimum voltage of this regulator - anatop-max-voltage: Maximum voltage of this regulator +Optional properties: +- anatop-delay-reg-offset: Anatop MFD step time register offset +- anatop-delay-bit-shift: Bit shift for the step time register +- anatop-delay-bit-width: Number of bits used in the step time register + Any property defined as part of the core regulator binding, defined in regulator.txt, can also be used. @@ -23,6 +28,9 @@ Example: anatop-reg-offset = <0x140>; anatop-vol-bit-shift = <9>; anatop-vol-bit-width = <5>; + anatop-delay-reg-offset = <0x170>; + anatop-delay-bit-shift = <24>; + anatop-delay-bit-width = <2>; anatop-min-bit-val = <1>; anatop-min-voltage = <725000>; anatop-max-voltage = <1300000>; diff --git a/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt new file mode 100644 index 000000000000..a35ff99003a5 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/s5m8767-regulator.txt @@ -0,0 +1,152 @@ +* Samsung S5M8767 Voltage and Current Regulator + +The Samsung S5M8767 is a multi-function device which includes volatage and +current regulators, rtc, charger controller and other sub-blocks. It is +interfaced to the host controller using a i2c interface. Each sub-block is +addressed by the host system using different i2c slave address. This document +describes the bindings for 'pmic' sub-block of s5m8767. + +Required properties: +- compatible: Should be "samsung,s5m8767-pmic". +- reg: Specifies the i2c slave address of the pmic block. It should be 0x66. + +- s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck2 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck3-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck3 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck4-dvs-voltage: A set of 8 voltage values in micro-volt (uV) + units for buck4 when changing voltage using gpio dvs. Refer to [1] below + for additional information. + +- s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used + for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines. + +[1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional + property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage' + property should specify atleast one voltage level (which would be a + safe operating voltage). + + If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional + property is specified, then all the eight voltage values for the + 's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified. + +Optional properties: +- interrupt-parent: Specifies the phandle of the interrupt controller to which + the interrupts from s5m8767 are delivered to. +- interrupts: Interrupt specifiers for two interrupt sources. + - First interrupt specifier is for 'irq1' interrupt. + - Second interrupt specifier is for 'alert' interrupt. +- s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs. +- s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs. +- s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs. + +Additional properties required if either of the optional properties are used: + +- s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from + the possible 8 options selectable by the dvs gpios. The value of this + property should be between 0 and 7. If not specified or if out of range, the + default value of this property is set to 0. + +- s5m8767,pmic-buck-dvs-gpios: GPIO specifiers for three host gpio's used + for dvs. The format of the gpio specifier depends in the gpio controller. + +Regulators: The regulators of s5m8767 that have to be instantiated should be +included in a sub-node named 'regulators'. Regulator nodes included in this +sub-node should be of the format as listed below. + + regulator_name { + ldo1_reg: LDO1 { + regulator-name = "VDD_ALIVE_1.0V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + regulator-boot-on; + op_mode = <1>; /* Normal Mode */ + }; + }; +The above regulator entries are defined in regulator bindings documentation +except op_mode description. + - op_mode: describes the different operating modes of the LDO's with + power mode change in SOC. The different possible values are, + 0 - always off mode + 1 - on in normal mode + 2 - low power mode + 3 - suspend mode + +The following are the names of the regulators that the s5m8767 pmic block +supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number +as per the datasheet of s5m8767. + + - LDOn + - valid values for n are 1 to 28 + - Example: LDO0, LD01, LDO28 + - BUCKn + - valid values for n are 1 to 9. + - Example: BUCK1, BUCK2, BUCK9 + +The bindings inside the regulator nodes use the standard regulator bindings +which are documented elsewhere. + +Example: + + s5m8767_pmic@66 { + compatible = "samsung,s5m8767-pmic"; + reg = <0x66>; + + s5m8767,pmic-buck2-uses-gpio-dvs; + s5m8767,pmic-buck3-uses-gpio-dvs; + s5m8767,pmic-buck4-uses-gpio-dvs; + + s5m8767,pmic-buck-default-dvs-idx = <0>; + + s5m8767,pmic-buck-dvs-gpios = <&gpx0 0 1 0 0>, /* DVS1 */ + <&gpx0 1 1 0 0>, /* DVS2 */ + <&gpx0 2 1 0 0>; /* DVS3 */ + + s5m8767,pmic-buck-ds-gpios = <&gpx2 3 1 0 0>, /* SET1 */ + <&gpx2 4 1 0 0>, /* SET2 */ + <&gpx2 5 1 0 0>; /* SET3 */ + + s5m8767,pmic-buck2-dvs-voltage = <1350000>, <1300000>, + <1250000>, <1200000>, + <1150000>, <1100000>, + <1000000>, <950000>; + + s5m8767,pmic-buck3-dvs-voltage = <1100000>, <1100000>, + <1100000>, <1100000>, + <1000000>, <1000000>, + <1000000>, <1000000>; + + s5m8767,pmic-buck4-dvs-voltage = <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>, + <1200000>, <1200000>; + + regulators { + ldo1_reg: LDO1 { + regulator-name = "VDD_ABB_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + op_mode = <1>; /* Normal Mode */ + }; + + ldo2_reg: LDO2 { + regulator-name = "VDD_ALIVE_1.1V"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + }; + + buck1_reg: BUCK1 { + regulator-name = "VDD_MIF_1.2V"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt b/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt new file mode 100644 index 000000000000..2f7e44a96414 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/tps51632-regulator.txt @@ -0,0 +1,27 @@ +TPS51632 Voltage regulators + +Required properties: +- compatible: Must be "ti,tps51632" +- reg: I2C slave address + +Optional properties: +- ti,enable-pwm-dvfs: Enable the DVFS voltage control through the PWM interface. +- ti,dvfs-step-20mV: The 20mV step voltage when PWM DVFS enabled. Missing this + will set 10mV step voltage in PWM DVFS mode. In normal mode, the voltage + step is 10mV as per datasheet. + +Any property defined as part of the core regulator binding, defined in +regulator.txt, can also be used. + +Example: + + tps51632 { + compatible = "ti,tps51632"; + reg = <0x43>; + regulator-name = "tps51632-vout"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + ti,enable-pwm-dvfs; + ti,dvfs-step-20mV; + }; diff --git a/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt b/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt index c8ca6b8f6582..1b20c3dbcdb8 100644 --- a/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt @@ -17,9 +17,9 @@ Optional properties: - ti,vsel1-gpio: Gpio for controlling VSEL1 line. If this property is missing, then assume that there is no GPIO for vsel1 control. -- ti,vsel0-state-high: Inital state of vsel0 input is high. +- ti,vsel0-state-high: Initial state of vsel0 input is high. If this property is missing, then assume the state as low (0). -- ti,vsel1-state-high: Inital state of vsel1 input is high. +- ti,vsel1-state-high: Initial state of vsel1 input is high. If this property is missing, then assume the state as low (0). Any property defined as part of the core regulator binding, defined in diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt index 90ec45fd33ec..7ac7259fe9ea 100644 --- a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt @@ -7,7 +7,7 @@ Required properties: - reg: physical base address of the controller and length of memory mapped region. - interrupts: Two interrupt numbers to the cpu should be specified. First - interrupt number is the rtc alarm interupt and second interrupt number + interrupt number is the rtc alarm interrupt and second interrupt number is the rtc tick interrupt. The number of cells representing a interrupt depends on the parent interrupt controller. diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt new file mode 100644 index 000000000000..e6222106ca36 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt @@ -0,0 +1,12 @@ +Renesas MSIOF spi controller + +Required properties: +- compatible : "renesas,sh-msiof" for SuperH or + "renesas,sh-mobile-msiof" for SH Mobile series +- reg : Offset and length of the register set for the device +- interrupts : interrupt line used by MSIOF + +Optional properties: +- num-cs : total number of chip-selects +- renesas,tx-fifo-size : Overrides the default tx fifo size given in words +- renesas,rx-fifo-size : Overrides the default rx fifo size given in words diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 902b1b1f568e..19e1ef73ab0d 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -14,6 +14,7 @@ bosch Bosch Sensortec GmbH brcm Broadcom Corporation cavium Cavium, Inc. chrp Common Hardware Reference Platform +cirrus Cirrus Logic, Inc. cortina Cortina Systems, Inc. dallas Maxim Integrated Products (formerly Dallas Semiconductor) denx Denx Software Engineering @@ -42,6 +43,7 @@ powervr PowerVR (deprecated, use img) qcom Qualcomm, Inc. ramtron Ramtron International realtek Realtek Semiconductor Corp. +renesas Renesas Electronics Corporation samsung Samsung Semiconductor sbs Smart Battery System schindler Schindler @@ -50,8 +52,10 @@ simtek sirf SiRF Technology, Inc. snps Synopsys, Inc. st STMicroelectronics +ste ST-Ericsson stericsson ST-Ericsson ti Texas Instruments +toshiba Toshiba Corporation via VIA Technologies, Inc. wlf Wolfson Microelectronics wm Wondermedia Technologies, Inc. diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt index 79ead8263ae4..ce0d8e78ed8f 100644 --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt @@ -2,7 +2,7 @@ The Samsung's Watchdog controller is used for resuming system operation after a preset amount of time during which the WDT reset event has not -occured. +occurred. Required properties: - compatible : should be "samsung,s3c2410-wdt" diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index 3374c085678d..fec5a9bf755f 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -66,6 +66,7 @@ Process Processor TjMax(C) i5 3470T 91 32nm Core i3/i5/i7 Processors + i7 2600 98 i7 660UM/640/620, 640LM/620, 620M, 610E 105 i5 540UM/520/430, 540M/520/450/430 105 i3 330E, 370M/350/330 90 rPGA, 105 BGA @@ -79,7 +80,10 @@ Process Processor TjMax(C) P4505/P4500 90 32nm Atom Processors + S1260/1220 95 + S1240 102 Z2460 90 + Z2760 90 D2700/2550/2500 100 N2850/2800/2650/2600 100 @@ -98,6 +102,7 @@ Process Processor TjMax(C) 45nm Atom Processors D525/510/425/410 100 + K525/510/425/410 100 Z670/650 90 Z560/550/540/530P/530/520PT/520/515/510PT/510P 90 Z510/500 90 @@ -107,7 +112,11 @@ Process Processor TjMax(C) 330/230 125 E680/660/640/620 90 E680T/660T/640T/620T 110 + E665C/645C 90 + E665CT/645CT 110 CE4170/4150/4110 110 + CE4200 series unknown + CE5300 series unknown 45nm Core2 Processors Solo ULV SU3500/3300 100 diff --git a/Documentation/hwmon/ina209 b/Documentation/hwmon/ina209 new file mode 100644 index 000000000000..672501de4509 --- /dev/null +++ b/Documentation/hwmon/ina209 @@ -0,0 +1,93 @@ +Kernel driver ina209 +===================== + +Supported chips: + * Burr-Brown / Texas Instruments INA209 + Prefix: 'ina209' + Addresses scanned: - + Datasheet: + http://www.ti.com/lit/gpn/ina209 + +Author: Paul Hays <Paul.Hays@cattail.ca> +Author: Ira W. Snyder <iws@ovro.caltech.edu> +Author: Guenter Roeck <linux@roeck-us.net> + + +Description +----------- + +The TI / Burr-Brown INA209 monitors voltage, current, and power on the high side +of a D.C. power supply. It can perform measurements and calculations in the +background to supply readings at any time. It includes a programmable +calibration multiplier to scale the displayed current and power values. + + +Sysfs entries +------------- + +The INA209 chip is highly configurable both via hardwiring and via +the I2C bus. See the datasheet for details. + +This tries to expose most monitoring features of the hardware via +sysfs. It does not support every feature of this chip. + + +in0_input shunt voltage (mV) +in0_input_highest shunt voltage historical maximum reading (mV) +in0_input_lowest shunt voltage historical minimum reading (mV) +in0_reset_history reset shunt voltage history +in0_max shunt voltage max alarm limit (mV) +in0_min shunt voltage min alarm limit (mV) +in0_crit_max shunt voltage crit max alarm limit (mV) +in0_crit_min shunt voltage crit min alarm limit (mV) +in0_max_alarm shunt voltage max alarm limit exceeded +in0_min_alarm shunt voltage min alarm limit exceeded +in0_crit_max_alarm shunt voltage crit max alarm limit exceeded +in0_crit_min_alarm shunt voltage crit min alarm limit exceeded + +in1_input bus voltage (mV) +in1_input_highest bus voltage historical maximum reading (mV) +in1_input_lowest bus voltage historical minimum reading (mV) +in1_reset_history reset bus voltage history +in1_max bus voltage max alarm limit (mV) +in1_min bus voltage min alarm limit (mV) +in1_crit_max bus voltage crit max alarm limit (mV) +in1_crit_min bus voltage crit min alarm limit (mV) +in1_max_alarm bus voltage max alarm limit exceeded +in1_min_alarm bus voltage min alarm limit exceeded +in1_crit_max_alarm bus voltage crit max alarm limit exceeded +in1_crit_min_alarm bus voltage crit min alarm limit exceeded + +power1_input power measurement (uW) +power1_input_highest power historical maximum reading (uW) +power1_reset_history reset power history +power1_max power max alarm limit (uW) +power1_crit power crit alarm limit (uW) +power1_max_alarm power max alarm limit exceeded +power1_crit_alarm power crit alarm limit exceeded + +curr1_input current measurement (mA) + +update_interval data conversion time; affects number of samples used + to average results for shunt and bus voltages. + +General Remarks +--------------- + +The power and current registers in this chip require that the calibration +register is programmed correctly before they are used. Normally this is expected +to be done in the BIOS. In the absence of BIOS programming, the shunt resistor +voltage can be provided using platform data. The driver uses platform data from +the ina2xx driver for this purpose. If calibration register data is not provided +via platform data, the driver checks if the calibration register has been +programmed (ie has a value not equal to zero). If so, this value is retained. +Otherwise, a default value reflecting a shunt resistor value of 10 mOhm is +programmed into the calibration register. + + +Output Pins +----------- + +Output pin programming is a board feature which depends on the BIOS. It is +outside the scope of a hardware monitoring driver to enable or disable output +pins. diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 8386aadc0a82..c263740f0cba 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -30,6 +30,14 @@ Supported chips: Prefix: 'it8728' Addresses scanned: from Super I/O config space (8 I/O ports) Datasheet: Not publicly available + * IT8771E + Prefix: 'it8771' + Addresses scanned: from Super I/O config space (8 I/O ports) + Datasheet: Not publicly available + * IT8772E + Prefix: 'it8772' + Addresses scanned: from Super I/O config space (8 I/O ports) + Datasheet: Not publicly available * IT8782F Prefix: 'it8782' Addresses scanned: from Super I/O config space (8 I/O ports) @@ -83,8 +91,8 @@ Description ----------- This driver implements support for the IT8705F, IT8712F, IT8716F, -IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8781F, IT8782F, -IT8783E/F, and SiS950 chips. +IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E, IT8772E, +IT8782F, IT8783E/F, and SiS950 chips. These chips are 'Super I/O chips', supporting floppy disks, infrared ports, joysticks and other miscellaneous stuff. For hardware monitoring, they @@ -118,8 +126,8 @@ The IT8726F is just bit enhanced IT8716F with additional hardware for AMD power sequencing. Therefore the chip will appear as IT8716F to userspace applications. -The IT8728F is considered compatible with the IT8721F, until a datasheet -becomes available (hopefully.) +The IT8728F, IT8771E, and IT8772E are considered compatible with the IT8721F, +until a datasheet becomes available (hopefully.) Temperatures are measured in degrees Celsius. An alarm is triggered once when the Overtemperature Shutdown limit is crossed. diff --git a/Documentation/hwmon/jc42 b/Documentation/hwmon/jc42 index 66ecb9fc8246..165077121238 100644 --- a/Documentation/hwmon/jc42 +++ b/Documentation/hwmon/jc42 @@ -17,12 +17,13 @@ Supported chips: * Maxim MAX6604 Datasheets: http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf - * Microchip MCP9804, MCP9805, MCP98242, MCP98243, MCP9843 + * Microchip MCP9804, MCP9805, MCP98242, MCP98243, MCP98244, MCP9843 Datasheets: http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf + http://ww1.microchip.com/downloads/en/DeviceDoc/22327A.pdf * NXP Semiconductors SE97, SE97B, SE98, SE98A Datasheets: http://www.nxp.com/documents/data_sheet/SE97.pdf diff --git a/Documentation/hwmon/lm73 b/Documentation/hwmon/lm73 new file mode 100644 index 000000000000..8af059dcb642 --- /dev/null +++ b/Documentation/hwmon/lm73 @@ -0,0 +1,90 @@ +Kernel driver lm73 +================== + +Supported chips: + * Texas Instruments LM73 + Prefix: 'lm73' + Addresses scanned: I2C 0x48, 0x49, 0x4a, 0x4c, 0x4d, and 0x4e + Datasheet: Publicly available at the Texas Instruments website + http://www.ti.com/product/lm73 + +Author: Guillaume Ligneul <guillaume.ligneul@gmail.com> +Documentation: Chris Verges <kg4ysn@gmail.com> + + +Description +----------- + +The LM73 is a digital temperature sensor. All temperature values are +given in degrees Celsius. + +Measurement Resolution Support +------------------------------ + +The LM73 supports four resolutions, defined in terms of degrees C per +LSB: 0.25, 0.125, 0.0625, and 0.3125. Changing the resolution mode +affects the conversion time of the LM73's analog-to-digital converter. +From userspace, the desired resolution can be specified as a function of +conversion time via the 'update_interval' sysfs attribute for the +device. This attribute will normalize ranges of input values to the +maximum times defined for the resolution in the datasheet. + + Resolution Conv. Time Input Range + (C/LSB) (msec) (msec) + -------------------------------------- + 0.25 14 0..14 + 0.125 28 15..28 + 0.0625 56 29..56 + 0.03125 112 57..infinity + -------------------------------------- + +The following examples show how the 'update_interval' attribute can be +used to change the conversion time: + + $ echo 0 > update_interval + $ cat update_interval + 14 + $ cat temp1_input + 24250 + + $ echo 22 > update_interval + $ cat update_interval + 28 + $ cat temp1_input + 24125 + + $ echo 56 > update_interval + $ cat update_interval + 56 + $ cat temp1_input + 24062 + + $ echo 85 > update_interval + $ cat update_interval + 112 + $ cat temp1_input + 24031 + +As shown here, the lm73 driver automatically adjusts any user input for +'update_interval' via a step function. Reading back the +'update_interval' value after a write operation will confirm the +conversion time actively in use. + +Mathematically, the resolution can be derived from the conversion time +via the following function: + + g(x) = 0.250 * [log(x/14) / log(2)] + +where 'x' is the output from 'update_interval' and 'g(x)' is the +resolution in degrees C per LSB. + +Alarm Support +------------- + +The LM73 features a simple over-temperature alarm mechanism. This +feature is exposed via the sysfs attributes. + +The attributes 'temp1_max_alarm' and 'temp1_min_alarm' are flags +provided by the LM73 that indicate whether the measured temperature has +passed the 'temp1_max' and 'temp1_min' thresholds, respectively. These +values _must_ be read to clear the registers on the LM73. diff --git a/Documentation/hwmon/max34440 b/Documentation/hwmon/max34440 index 04482226db20..47651ff341ae 100644 --- a/Documentation/hwmon/max34440 +++ b/Documentation/hwmon/max34440 @@ -16,6 +16,16 @@ Supported chips: Prefixes: 'max34446' Addresses scanned: - Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34446.pdf + * Maxim MAX34460 + PMBus 12-Channel Voltage Monitor & Sequencer + Prefix: 'max34460' + Addresses scanned: - + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34460.pdf + * Maxim MAX34461 + PMBus 16-Channel Voltage Monitor & Sequencer + Prefix: 'max34461' + Addresses scanned: - + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34461.pdf Author: Guenter Roeck <guenter.roeck@ericsson.com> @@ -26,6 +36,9 @@ Description This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel Power-Supply Manager, MAX34441 PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller, and MAX34446 PMBus Power-Supply Data Logger. +It also supports the MAX34460 and MAX34461 PMBus Voltage Monitor & Sequencers. +The MAX34460 supports 12 voltage channels, and the MAX34461 supports 16 voltage +channels. The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus for details on PMBus client drivers. @@ -109,3 +122,6 @@ temp[1-8]_reset_history Write any value to reset history. temp7 and temp8 attributes only exist for MAX34440. MAX34446 only supports temp[1-3]. + +MAX34460 supports attribute groups in[1-12] and temp[1-5]. +MAX34461 supports attribute groups in[1-16] and temp[1-5]. diff --git a/Documentation/hwmon/max6697 b/Documentation/hwmon/max6697 new file mode 100644 index 000000000000..6594177ededa --- /dev/null +++ b/Documentation/hwmon/max6697 @@ -0,0 +1,58 @@ +Kernel driver max6697 +===================== + +Supported chips: + * Maxim MAX6581 + Prefix: 'max6581' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6581.pdf + * Maxim MAX6602 + Prefix: 'max6602' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6602.pdf + * Maxim MAX6622 + Prefix: 'max6622' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6622.pdf + * Maxim MAX6636 + Prefix: 'max6636' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6636.pdf + * Maxim MAX6689 + Prefix: 'max6689' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6689.pdf + * Maxim MAX6693 + Prefix: 'max6693' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6693.pdf + * Maxim MAX6694 + Prefix: 'max6694' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6694.pdf + * Maxim MAX6697 + Prefix: 'max6697' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6697.pdf + * Maxim MAX6698 + Prefix: 'max6698' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6698.pdf + * Maxim MAX6699 + Prefix: 'max6699' + Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6699.pdf + +Author: + Guenter Roeck <linux@roeck-us.net> + +Description +----------- + +This driver implements support for several MAX6697 compatible temperature sensor +chips. The chips support one local temperature sensor plus four, six, or seven +remote temperature sensors. Remote temperature sensors are diode-connected +thermal transitors, except for MAX6698 which supports three diode-connected +thermal transistors plus three thermistors in addition to the local temperature +sensor. + +The driver provides the following sysfs attributes. temp1 is the local (chip) +temperature, temp[2..n] are remote temperatures. The actually supported +per-channel attributes are chip type and channel dependent. + +tempX_input RO temperature +tempX_max RW temperature maximum threshold +tempX_max_alarm RO temperature maximum threshold alarm +tempX_crit RW temperature critical threshold +tempX_crit_alarm RO temperature critical threshold alarm +tempX_fault RO temperature diode fault (remote sensors only) diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 1f4dd855a299..79f8257dd790 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -722,14 +722,14 @@ add/subtract if it has been divided before the add/subtract. What to do if a value is found to be invalid, depends on the type of the sysfs attribute that is being set. If it is a continuous setting like a tempX_max or inX_max attribute, then the value should be clamped to its -limits using SENSORS_LIMIT(value, min_limit, max_limit). If it is not -continuous like for example a tempX_type, then when an invalid value is -written, -EINVAL should be returned. +limits using clamp_val(value, min_limit, max_limit). If it is not continuous +like for example a tempX_type, then when an invalid value is written, +-EINVAL should be returned. Example1, temp1_max, register is a signed 8 bit value (-128 - 127 degrees): long v = simple_strtol(buf, NULL, 10) / 1000; - v = SENSORS_LIMIT(v, -128, 127); + v = clamp_val(v, -128, 127); /* write v to register */ Example2, fan divider setting, valid values 2, 4 and 8: diff --git a/Documentation/hwmon/zl6100 b/Documentation/hwmon/zl6100 index a995b41724fd..3d924b6b59e9 100644 --- a/Documentation/hwmon/zl6100 +++ b/Documentation/hwmon/zl6100 @@ -121,12 +121,26 @@ in1_max_alarm Input voltage high alarm. in1_lcrit_alarm Input voltage critical low alarm. in1_crit_alarm Input voltage critical high alarm. -in2_label "vout1" -in2_input Measured output voltage. -in2_lcrit Critical minimum output Voltage. -in2_crit Critical maximum output voltage. -in2_lcrit_alarm Critical output voltage critical low alarm. -in2_crit_alarm Critical output voltage critical high alarm. +in2_label "vmon" +in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M, + ZL9117M) pin. Reported voltage is 16x the voltage on the + pin (adjusted internally by the chip). +in2_lcrit Critical minumum VMON/VDRV Voltage. +in2_crit Critical maximum VMON/VDRV voltage. +in2_lcrit_alarm VMON/VDRV voltage critical low alarm. +in2_crit_alarm VMON/VDRV voltage critical high alarm. + + vmon attributes are supported on ZL2004, ZL9101M, + and ZL9117M only. + +inX_label "vout1" +inX_input Measured output voltage. +inX_lcrit Critical minimum output Voltage. +inX_crit Critical maximum output voltage. +inX_lcrit_alarm Critical output voltage critical low alarm. +inX_crit_alarm Critical output voltage critical high alarm. + + X is 3 for ZL2004, ZL9101M, and ZL9117M, 2 otherwise. curr1_label "iout1" curr1_input Measured output current. diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 2152b0e7237d..3210540f8bd3 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -179,7 +179,7 @@ Code Seq#(hex) Include File Comments 'V' C0 media/davinci/vpfe_capture.h conflict! 'V' C0 media/si4713.h conflict! 'W' 00-1F linux/watchdog.h conflict! -'W' 00-1F linux/wanrouter.h conflict! +'W' 00-1F linux/wanrouter.h conflict! (pre 3.9) 'W' 00-3F sound/asound.h conflict! 'X' all fs/xfs/xfs_fs.h conflict! and fs/xfs/linux-2.6/xfs_ioctl32.h diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 14c3f4f1b617..5198b742fde1 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -1186,6 +1186,29 @@ When kbuild executes, the following steps are followed (roughly): clean-files += *.dtb DTC_FLAGS ?= -p 1024 + dtc_cpp + This is just like dtc as describe above, except that the C pre- + processor is invoked upon the .dtsp file before compiling the result + with dtc. + + In order for build dependencies to work, all files compiled using + dtc_cpp must use the C pre-processor's #include functionality and not + dtc's /include/ functionality. + + Using the C pre-processor allows use of #define to create named + constants. In turn, the #defines will typically appear in a header + file, which may be shared with regular C code. Since the dtc language + represents a data structure rather than code in C syntax, similar + restrictions are placed on a header file included by a device tree + file as for a header file included by an assembly language file. + In particular, the C pre-processor is passed -x assembler-with-cpp, + which sets macro __ASSEMBLY__. __DTS__ is also set. These allow header + files to restrict their content to that compatible with device tree + source. + + A central rule exists to create $(obj)/%.dtb from $(src)/%.dtsp; + architecture Makefiles do no need to explicitly write out that rule. + --- 6.8 Custom kbuild commands When kbuild is executing with KBUILD_VERBOSE=0, then only a shorthand diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 6c723811c0a0..4c5b3f993bbb 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1039,16 +1039,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Claim all unknown PCI IDE storage controllers. idle= [X86] - Format: idle=poll, idle=mwait, idle=halt, idle=nomwait + Format: idle=poll, idle=halt, idle=nomwait Poll forces a polling idle loop that can slightly improve the performance of waking up a idle CPU, but will use a lot of power and make the system run hot. Not recommended. - idle=mwait: On systems which support MONITOR/MWAIT but - the kernel chose to not use it because it doesn't save - as much power as a normal idle loop, use the - MONITOR/MWAIT idle loop anyways. Performance should be - the same as idle=poll. idle=halt: Halt is forced to be used for CPU idle. In such case C2/C3 won't be used again. idle=nomwait: Disable mwait for CPU C-states @@ -1131,6 +1126,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. 0 disables intel_idle and fall back on acpi_idle. 1 to 6 specify maximum depth of C-state. + intel_pstate= [X86] + disable + Do not enable intel_pstate as the default + scaling driver for the supported processors + intremap= [X86-64, Intel-IOMMU] on enable Interrupt Remapping (default) off disable Interrupt Remapping @@ -1886,10 +1886,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. wfi(ARM) instruction doesn't work correctly and not to use it. This is also useful when using JTAG debugger. - no-hlt [BUGS=X86-32] Tells the kernel that the hlt - instruction doesn't work correctly and not to - use it. - no_file_caps Tells the kernel not to honor file capabilities. The only way then for a file to be executed with privilege is to be setuid root or executed by root. diff --git a/Documentation/magic-number.txt b/Documentation/magic-number.txt index 82761a31d64d..76d80a64bbe1 100644 --- a/Documentation/magic-number.txt +++ b/Documentation/magic-number.txt @@ -122,7 +122,7 @@ SLAB_C_MAGIC 0x4f17a36d kmem_cache mm/slab.c COW_MAGIC 0x4f4f4f4d cow_header_v1 arch/um/drivers/ubd_user.c I810_CARD_MAGIC 0x5072696E i810_card sound/oss/i810_audio.c TRIDENT_CARD_MAGIC 0x5072696E trident_card sound/oss/trident.c -ROUTER_MAGIC 0x524d4157 wan_device include/linux/wanrouter.h +ROUTER_MAGIC 0x524d4157 wan_device [in wanrouter.h pre 3.9] SCC_MAGIC 0x52696368 gs_port drivers/char/scc.h SAVEKMSG_MAGIC1 0x53415645 savekmsg arch/*/amiga/config.c GDA_MAGIC 0x58464552 gda arch/mips/include/asm/sn/gda.h diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index 3c4e1b3b80a1..fa5d8a9ae205 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -1685,6 +1685,7 @@ explicit lock operations, described later). These include: xchg(); cmpxchg(); + atomic_xchg(); atomic_cmpxchg(); atomic_inc_return(); atomic_dec_return(); diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX index 2cc3c7733a2f..258d9b92c36f 100644 --- a/Documentation/networking/00-INDEX +++ b/Documentation/networking/00-INDEX @@ -52,8 +52,6 @@ de4x5.txt - the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver decnet.txt - info on using the DECnet networking layer in Linux. -depca.txt - - the Digital DEPCA/EtherWORKS DE1?? and DE2?? LANCE Ethernet driver dl2k.txt - README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko). dm9000.txt @@ -72,8 +70,6 @@ e1000e.txt - README for the Intel Gigabit Ethernet Driver (e1000e). eql.txt - serial IP load balancing -ewrk3.txt - - the Digital EtherWORKS 3 DE203/4/5 Ethernet driver fib_trie.txt - Level Compressed Trie (LC-trie) notes: a structure for routing. filter.txt @@ -126,8 +122,6 @@ ltpc.txt - the Apple or Farallon LocalTalk PC card driver mac80211-injection.txt - HOWTO use packet injection with mac80211 -multicast.txt - - Behaviour of cards under Multicast multiqueue.txt - HOWTO for multiqueue network device support. netconsole.txt diff --git a/Documentation/networking/DLINK.txt b/Documentation/networking/DLINK.txt deleted file mode 100644 index 55d24433d151..000000000000 --- a/Documentation/networking/DLINK.txt +++ /dev/null @@ -1,203 +0,0 @@ -Released 1994-06-13 - - - CONTENTS: - - 1. Introduction. - 2. License. - 3. Files in this release. - 4. Installation. - 5. Problems and tuning. - 6. Using the drivers with earlier releases. - 7. Acknowledgments. - - - 1. INTRODUCTION. - - This is a set of Ethernet drivers for the D-Link DE-600/DE-620 - pocket adapters, for the parallel port on a Linux based machine. - Some adapter "clones" will also work. Xircom is _not_ a clone... - These drivers _can_ be used as loadable modules, - and were developed for use on Linux 1.1.13 and above. - For use on Linux 1.0.X, or earlier releases, see below. - - I have used these drivers for NFS, ftp, telnet and X-clients on - remote machines. Transmissions with ftp seems to work as - good as can be expected (i.e. > 80k bytes/sec) from a - parallel port...:-) Receive speeds will be about 60-80% of this. - Depending on your machine, somewhat higher speeds can be achieved. - - All comments/fixes to Bjorn Ekwall (bj0rn@blox.se). - - - 2. LICENSE. - - This program is free software; you can redistribute it - and/or modify it under the terms of the GNU General Public - License as published by the Free Software Foundation; either - version 2, or (at your option) any later version. - - This program is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied - warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - PURPOSE. See the GNU General Public License for more - details. - - You should have received a copy of the GNU General Public - License along with this program; if not, write to the Free - Software Foundation, Inc., 675 Mass Ave, Cambridge, MA - 02139, USA. - - - 3. FILES IN THIS RELEASE. - - README.DLINK This file. - de600.c The Source (may it be with You :-) for the DE-600 - de620.c ditto for the DE-620 - de620.h Macros for de620.c - - If you are upgrading from the d-link tar release, there will - also be a "dlink-patches" file that will patch Linux 1.1.18: - linux/drivers/net/Makefile - linux/drivers/net/CONFIG - linux/drivers/net/MODULES - linux/drivers/net/Space.c - linux/config.in - Apply the patch by: - "cd /usr/src; patch -p0 < linux/drivers/net/dlink-patches" - The old source, "linux/drivers/net/d_link.c", can be removed. - - - 4. INSTALLATION. - - o Get the latest net binaries, according to current net.wisdom. - - o Read the NET-2 and Ethernet HOWTOs and modify your setup. - - o If your parallel port has a strange address or irq, - modify "linux/drivers/net/CONFIG" accordingly, or adjust - the parameters in the "tuning" section in the sources. - - If you are going to use the drivers as loadable modules, do _not_ - enable them while doing "make config", but instead make sure that - the drivers are included in "linux/drivers/net/MODULES". - - If you are _not_ going to use the driver(s) as loadable modules, - but instead have them included in the kernel, remember to enable - the drivers while doing "make config". - - o To include networking and DE600/DE620 support in your kernel: - # cd /linux - (as modules:) - # make config (answer yes on CONFIG_NET and CONFIG_INET) - (else included in the kernel:) - # make config (answer yes on CONFIG _NET, _INET and _DE600 or _DE620) - # make clean - # make zImage (or whatever magic you usually do) - - o I use lilo to boot multiple kernels, so that I at least - can have one working kernel :-). If you do too, append - these lines to /etc/lilo/config: - - image = /linux/zImage - label = newlinux - root = /dev/hda2 (or whatever YOU have...) - - # /etc/lilo/install - - o Do "sync" and reboot the new kernel with a D-Link - DE-600/DE-620 pocket adapter connected. - - o The adapter can be configured with ifconfig eth? - where the actual number is decided by the kernel - when the drivers are initialized. - - - 5. "PROBLEMS" AND TUNING, - - o If you see error messages from the driver, and if the traffic - stops on the adapter, try to do "ifconfig" and "route" once - more, just as in "rc.inet1". This should take care of most - problems, including effects from power loss, or adapters that - aren't connected to the printer port in some way or another. - You can somewhat change the behaviour by enabling/disabling - the macro SHUTDOWN_WHEN_LOST in the "tuning" section. - For the DE-600 there is another macro, CHECK_LOST_DE600, - that you might want to read about in the "tuning" section. - - o Some machines have trouble handling the parallel port and - the adapter at high speed. If you experience problems: - - DE-600: - - The adapter is not recognized at boot, i.e. an Ethernet - address of 00:80:c8:... is not shown, try to add another - "; SLOW_DOWN_IO" - at DE600_SLOW_DOWN in the "tuning" section. As a last resort, - uncomment: "#define REALLY_SLOW_IO" (see <asm/io.h> for hints). - - - You experience "timeout" messages: first try to add another - "; SLOW_DOWN_IO" - at DE600_SLOW_DOWN in the "tuning" section, _then_ try to - increase the value (original value: 5) at - "if (tickssofar < 5)" near line 422. - - DE-620: - - Your parallel port might be "sluggish". To cater for - this, there are the macros LOWSPEED and READ_DELAY/WRITE_DELAY - in the "tuning" section. Your first step should be to enable - LOWSPEED, and after that you can "tune" the XXX_DELAY values. - - o If the adapter _is_ recognized at boot but you get messages - about "Network Unreachable", then the problem is probably - _not_ with the driver. Check your net configuration instead - (ifconfig and route) in "rc.inet1". - - o There is some rudimentary support for debugging, look at - the source. Use "-DDE600_DEBUG=3" or "-DDE620_DEBUG=3" - when compiling, or include it in "linux/drivers/net/CONFIG". - IF YOU HAVE PROBLEMS YOU CAN'T SOLVE: PLEASE COMPILE THE DRIVER - WITH DEBUGGING ENABLED, AND SEND ME THE RESULTING OUTPUT! - - - 6. USING THE DRIVERS WITH EARLIER RELEASES. - - The later 1.1.X releases of the Linux kernel include some - changes in the networking layer (a.k.a. NET3). This affects - these drivers in a few places. The hints that follow are - _not_ tested by me, since I don't have the disk space to keep - all releases on-line. - Known needed changes to date: - - release patchfile: some patches will fail, but they should - be easy to apply "by hand", since they are trivial. - (Space.c: d_link_init() is now called de600_probe()) - - de600.c: change "mark_bh(NET_BH)" to "mark_bh(INET_BH)". - - de620.c: (maybe) change the code around "netif_rx(skb);" to be - similar to the code around "dev_rint(...)" in de600.c - - - 7. ACKNOWLEDGMENTS. - - These drivers wouldn't have been done without the base - (and support) from Ross Biro, and D-Link Systems Inc. - The driver relies upon GPL-ed source from D-Link Systems Inc. - and from Russel Nelson at Crynwr Software <nelson@crynwr.com>. - - Additional input also from: - Donald Becker <becker@super.org>, Alan Cox <A.Cox@swansea.ac.uk> - and Fred N. van Kempen <waltje@uWalt.NL.Mugnet.ORG> - - DE-600 alpha release primary victim^H^H^H^H^H^Htester: - - Erik Proper <erikp@cs.kun.nl>. - Good input also from several users, most notably - - Mark Burton <markb@ordern.demon.co.uk>. - - DE-620 alpha release victims^H^H^H^H^H^H^Htesters: - - J. Joshua Kopper <kopper@rtsg.mot.com> - - Olav Kvittem <Olav.Kvittem@uninett.no> - - Germano Caronni <caronni@nessie.cs.id.ethz.ch> - - Jeremy Fitzhardinge <jeremy@suite.sw.oz.au> - - - Happy hacking! - - Bjorn Ekwall == bj0rn@blox.se diff --git a/Documentation/networking/LICENSE.qlcnic b/Documentation/networking/LICENSE.qlcnic index e7fb2c6023bc..2ae3b64983ab 100644 --- a/Documentation/networking/LICENSE.qlcnic +++ b/Documentation/networking/LICENSE.qlcnic @@ -1,4 +1,4 @@ -Copyright (c) 2009-2011 QLogic Corporation +Copyright (c) 2009-2013 QLogic Corporation QLogic Linux qlcnic NIC Driver You may modify and redistribute the device driver code under the diff --git a/Documentation/networking/cs89x0.txt b/Documentation/networking/cs89x0.txt index c725d33b316f..0e190180eec8 100644 --- a/Documentation/networking/cs89x0.txt +++ b/Documentation/networking/cs89x0.txt @@ -36,7 +36,6 @@ TABLE OF CONTENTS 4.1 Compiling the Driver as a Loadable Module 4.2 Compiling the driver to support memory mode 4.3 Compiling the driver to support Rx DMA - 4.4 Compiling the Driver into the Kernel 5.0 TESTING AND TROUBLESHOOTING 5.1 Known Defects and Limitations @@ -364,84 +363,6 @@ The compile-time optionality for DMA was removed in the 2.3 kernel series. DMA support is now unconditionally part of the driver. It is enabled by the 'use_dma=1' module option. -4.4 COMPILING THE DRIVER INTO THE KERNEL - -If your Linux distribution already has support for the cs89x0 driver -then simply copy the source file to the /usr/src/linux/drivers/net -directory to replace the original ones and run the make utility to -rebuild the kernel. See Step 3 for rebuilding the kernel. - -If your Linux does not include the cs89x0 driver, you need to edit three -configuration files, copy the source file to the /usr/src/linux/drivers/net -directory, and then run the make utility to rebuild the kernel. - -1. Edit the following configuration files by adding the statements as -indicated. (When possible, try to locate the added text to the section of the -file containing similar statements). - - -a.) In /usr/src/linux/drivers/net/Config.in, add: - -tristate 'CS89x0 support' CONFIG_CS89x0 - -Example: - - if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then - tristate 'ICL EtherTeam 16i/32 support' CONFIG_ETH16I - fi - - tristate 'CS89x0 support' CONFIG_CS89x0 - - tristate 'NE2000/NE1000 support' CONFIG_NE2000 - if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then - tristate 'NI5210 support' CONFIG_NI52 - - -b.) In /usr/src/linux/drivers/net/Makefile, add the following lines: - -ifeq ($(CONFIG_CS89x0),y) -L_OBJS += cs89x0.o -else - ifeq ($(CONFIG_CS89x0),m) - M_OBJS += cs89x0.o - endif -endif - - -c.) In /linux/drivers/net/Space.c file, add the line: - -extern int cs89x0_probe(struct device *dev); - - -Example: - - extern int ultra_probe(struct device *dev); - extern int wd_probe(struct device *dev); - extern int el2_probe(struct device *dev); - - extern int cs89x0_probe(struct device *dev); - - extern int ne_probe(struct device *dev); - extern int hp_probe(struct device *dev); - extern int hp_plus_probe(struct device *dev); - - -Also add: - - #ifdef CONFIG_CS89x0 - { cs89x0_probe,0 }, - #endif - - -2.) Copy the driver source files (cs89x0.c and cs89x0.h) -into the /usr/src/linux/drivers/net directory. - - -3.) Go to /usr/src/linux directory and run 'make config' followed by 'make' -(or make bzImage) to rebuild the kernel. - -4.) Use the DOS 'setup' utility to disable plug and play on the NIC. - 5.0 TESTING AND TROUBLESHOOTING =============================================================================== diff --git a/Documentation/networking/depca.txt b/Documentation/networking/depca.txt deleted file mode 100644 index 24c6b26e5658..000000000000 --- a/Documentation/networking/depca.txt +++ /dev/null @@ -1,92 +0,0 @@ - -DE10x -===== - -Memory Addresses: - - SW1 SW2 SW3 SW4 -64K on on on on d0000 dbfff - off on on on c0000 cbfff - off off on on e0000 ebfff - -32K on on off on d8000 dbfff - off on off on c8000 cbfff - off off off on e8000 ebfff - -DBR ROM on on dc000 dffff - off on cc000 cffff - off off ec000 effff - -Note that the 2K mode is set by SW3/SW4 on/off or off/off. Address -assignment is through the RBSA register. - -I/O Address: - SW5 -0x300 on -0x200 off - -Remote Boot: - SW6 -Disable on -Enable off - -Remote Boot Timeout: - SW7 -2.5min on -30s off - -IRQ: - SW8 SW9 SW10 SW11 SW12 -2 on off off off off -3 off on off off off -4 off off on off off -5 off off off on off -7 off off off off on - -DE20x -===== - -Memory Size: - - SW3 SW4 -64K on on -32K off on -2K on off -2K off off - -Start Addresses: - - SW1 SW2 SW3 SW4 -64K on on on on c0000 cffff - on off on on d0000 dffff - off on on on e0000 effff - -32K on on off off c8000 cffff - on off off off d8000 dffff - off on off off e8000 effff - -Illegal off off - - - - - -I/O Address: - SW5 -0x300 on -0x200 off - -Remote Boot: - SW6 -Disable on -Enable off - -Remote Boot Timeout: - SW7 -2.5min on -30s off - -IRQ: - SW8 SW9 SW10 SW11 SW12 -5 on off off off off -9 off on off off off -10 off off on off off -11 off off off on off -15 off off off off on - diff --git a/Documentation/networking/ewrk3.txt b/Documentation/networking/ewrk3.txt deleted file mode 100644 index 90e9e5f16e6b..000000000000 --- a/Documentation/networking/ewrk3.txt +++ /dev/null @@ -1,46 +0,0 @@ -The EtherWORKS 3 driver in this distribution is designed to work with all -kernels > 1.1.33 (approx) and includes tools in the 'ewrk3tools' -subdirectory to allow set up of the card, similar to the MSDOS -'NICSETUP.EXE' tools provided on the DOS drivers disk (type 'make' in that -subdirectory to make the tools). - -The supported cards are DE203, DE204 and DE205. All other cards are NOT -supported - refer to 'depca.c' for running the LANCE based network cards and -'de4x5.c' for the DIGITAL Semiconductor PCI chip based adapters from -Digital. - -The ability to load this driver as a loadable module has been included and -used extensively during the driver development (to save those long reboot -sequences). To utilise this ability, you have to do 8 things: - - 0) have a copy of the loadable modules code installed on your system. - 1) copy ewrk3.c from the /linux/drivers/net directory to your favourite - temporary directory. - 2) edit the source code near line 1898 to reflect the I/O address and - IRQ you're using. - 3) compile ewrk3.c, but include -DMODULE in the command line to ensure - that the correct bits are compiled (see end of source code). - 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a - kernel with the ewrk3 configuration turned off and reboot. - 5) insmod ewrk3.o - [Alan Cox: Changed this so you can insmod ewrk3.o irq=x io=y] - [Adam Kropelin: Multiple cards now supported by irq=x1,x2 io=y1,y2] - 6) run the net startup bits for your new eth?? interface manually - (usually /etc/rc.inet[12] at boot time). - 7) enjoy! - - Note that autoprobing is not allowed in loadable modules - the system is - already up and running and you're messing with interrupts. - - To unload a module, turn off the associated interface - 'ifconfig eth?? down' then 'rmmod ewrk3'. - -The performance we've achieved so far has been measured through the 'ttcp' -tool at 975kB/s. This measures the total TCP stack performance which -includes the card, so don't expect to get much nearer the 1.25MB/s -theoretical Ethernet rate. - - -Enjoy! - -Dave diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt index bbf2005270b5..cdb3e40b9d14 100644 --- a/Documentation/networking/filter.txt +++ b/Documentation/networking/filter.txt @@ -17,12 +17,12 @@ creating filters. LSF is much simpler than BPF. One does not have to worry about devices or anything like that. You simply create your filter -code, send it to the kernel via the SO_ATTACH_FILTER ioctl and +code, send it to the kernel via the SO_ATTACH_FILTER option and if your filter code passes the kernel check on it, you then immediately begin filtering data on that socket. You can also detach filters from your socket via the -SO_DETACH_FILTER ioctl. This will probably not be used much +SO_DETACH_FILTER option. This will probably not be used much since when you close a socket that has a filter on it the filter is automagically removed. The other less common case may be adding a different filter on the same socket where you had another @@ -31,12 +31,19 @@ the old one and placing your new one in its place, assuming your filter has passed the checks, otherwise if it fails the old filter will remain on that socket. +SO_LOCK_FILTER option allows to lock the filter attached to a +socket. Once set, a filter cannot be removed or changed. This allows +one process to setup a socket, attach a filter, lock it then drop +privileges and be assured that the filter will be kept until the +socket is closed. + Examples ======== Ioctls- setsockopt(sockfd, SOL_SOCKET, SO_ATTACH_FILTER, &Filter, sizeof(Filter)); setsockopt(sockfd, SOL_SOCKET, SO_DETACH_FILTER, &value, sizeof(value)); +setsockopt(sockfd, SOL_SOCKET, SO_LOCK_FILTER, &value, sizeof(value)); See the BSD bpf.4 manpage and the BSD Packet Filter paper written by Steven McCanne and Van Jacobson of Lawrence Berkeley Laboratory. diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index dbca66182089..dc2dc87d2557 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -26,6 +26,11 @@ route/max_size - INTEGER Maximum number of routes allowed in the kernel. Increase this when using large numbers of interfaces and/or routes. +neigh/default/gc_thresh1 - INTEGER + Minimum number of entries to keep. Garbage collector will not + purge entries if there are fewer than this number. + Default: 256 + neigh/default/gc_thresh3 - INTEGER Maximum number of neighbor entries allowed. Increase this when using large numbers of interfaces and when communicating @@ -125,17 +130,6 @@ somaxconn - INTEGER Defaults to 128. See also tcp_max_syn_backlog for additional tuning for TCP sockets. -tcp_abc - INTEGER - Controls Appropriate Byte Count (ABC) defined in RFC3465. - ABC is a way of increasing congestion window (cwnd) more slowly - in response to partial acknowledgments. - Possible values are: - 0 increase cwnd once per acknowledgment (no ABC) - 1 increase cwnd once per acknowledgment of full sized segment - 2 allow increase cwnd by two if acknowledgment is - of two segments to compensate for delayed acknowledgments. - Default: 0 (off) - tcp_abort_on_overflow - BOOLEAN If listening service is too slow to accept new connections, reset them. Default state is FALSE. It means that if overflow @@ -214,7 +208,8 @@ tcp_ecn - INTEGER congestion before having to drop packets. Possible values are: 0 Disable ECN. Neither initiate nor accept ECN. - 1 Always request ECN on outgoing connection attempts. + 1 Enable ECN when requested by incoming connections and + also request ECN on outgoing connection attempts. 2 Enable ECN when requested by incoming connections but do not request ECN on outgoing connections. Default: 2 diff --git a/Documentation/networking/multicast.txt b/Documentation/networking/multicast.txt deleted file mode 100644 index b06c8c69266f..000000000000 --- a/Documentation/networking/multicast.txt +++ /dev/null @@ -1,63 +0,0 @@ -Behaviour of Cards Under Multicast -================================== - -This is how they currently behave, not what the hardware can do--for example, -the Lance driver doesn't use its filter, even though the code for loading -it is in the DEC Lance-based driver. - -The following are requirements for multicasting ------------------------------------------------ -AppleTalk Multicast hardware filtering not important but - avoid cards only doing promisc -IP-Multicast Multicast hardware filters really help -IP-MRoute AllMulti hardware filters are of no help - - -Board Multicast AllMulti Promisc Filter ------------------------------------------------------------------------- -3c501 YES YES YES Software -3c503 YES YES YES Hardware -3c505 YES NO YES Hardware -3c507 NO NO NO N/A -3c509 YES YES YES Software -3c59x YES YES YES Software -ac3200 YES YES YES Hardware -apricot YES PROMISC YES Hardware -arcnet NO NO NO N/A -at1700 PROMISC PROMISC YES Software -atp PROMISC PROMISC YES Software -cs89x0 YES YES YES Software -de4x5 YES YES YES Hardware -de600 NO NO NO N/A -de620 PROMISC PROMISC YES Software -depca YES PROMISC YES Hardware -dmfe YES YES YES Software(*) -e2100 YES YES YES Hardware -eepro YES PROMISC YES Hardware -eexpress NO NO NO N/A -ewrk3 YES PROMISC YES Hardware -hp-plus YES YES YES Hardware -hp YES YES YES Hardware -hp100 YES YES YES Hardware -ibmtr NO NO NO N/A -ioc3-eth YES YES YES Hardware -lance YES YES YES Software(#) -ne YES YES YES Hardware -ni52 <------------------ Buggy ------------------> -ni65 YES YES YES Software(#) -seeq NO NO NO N/A -sgiseek <------------------ Buggy ------------------> -smc-ultra YES YES YES Hardware -sunlance YES YES YES Hardware -tulip YES YES YES Hardware -wavelan YES PROMISC YES Hardware -wd YES YES YES Hardware -xirc2ps_cs YES YES YES Hardware -znet YES YES YES Software - - -PROMISC = This multicast mode is in fact promiscuous mode. Avoid using -cards who go PROMISC on any multicast in a multicast kernel. - -(#) = Hardware multicast support is not used yet. -(*) = Hardware support for Davicom 9132 chipset only. diff --git a/Documentation/networking/netconsole.txt b/Documentation/networking/netconsole.txt index 2e9e0ae2cd45..a5d574a9ae09 100644 --- a/Documentation/networking/netconsole.txt +++ b/Documentation/networking/netconsole.txt @@ -1,9 +1,10 @@ started by Ingo Molnar <mingo@redhat.com>, 2001.09.17 2.6 port and netpoll api by Matt Mackall <mpm@selenic.com>, Sep 9 2003 +IPv6 support by Cong Wang <xiyou.wangcong@gmail.com>, Jan 1 2013 Please send bug reports to Matt Mackall <mpm@selenic.com> -and Satyam Sharma <satyam.sharma@gmail.com> +Satyam Sharma <satyam.sharma@gmail.com>, and Cong Wang <xiyou.wangcong@gmail.com> Introduction: ============= @@ -41,6 +42,10 @@ Examples: insmod netconsole netconsole=@/,@10.0.0.2/ + or using IPv6 + + insmod netconsole netconsole=@/,@fd00:1:2:3::1/ + It also supports logging to multiple remote agents by specifying parameters for the multiple agents separated by semicolons and the complete string enclosed in "quotes", thusly: diff --git a/Documentation/networking/nf_conntrack-sysctl.txt b/Documentation/networking/nf_conntrack-sysctl.txt new file mode 100644 index 000000000000..70da5086153d --- /dev/null +++ b/Documentation/networking/nf_conntrack-sysctl.txt @@ -0,0 +1,176 @@ +/proc/sys/net/netfilter/nf_conntrack_* Variables: + +nf_conntrack_acct - BOOLEAN + 0 - disabled (default) + not 0 - enabled + + Enable connection tracking flow accounting. 64-bit byte and packet + counters per flow are added. + +nf_conntrack_buckets - INTEGER (read-only) + Size of hash table. If not specified as parameter during module + loading, the default size is calculated by dividing total memory + by 16384 to determine the number of buckets but the hash table will + never have fewer than 32 or more than 16384 buckets. + +nf_conntrack_checksum - BOOLEAN + 0 - disabled + not 0 - enabled (default) + + Verify checksum of incoming packets. Packets with bad checksums are + in INVALID state. If this is enabled, such packets will not be + considered for connection tracking. + +nf_conntrack_count - INTEGER (read-only) + Number of currently allocated flow entries. + +nf_conntrack_events - BOOLEAN + 0 - disabled + not 0 - enabled (default) + + If this option is enabled, the connection tracking code will + provide userspace with connection tracking events via ctnetlink. + +nf_conntrack_events_retry_timeout - INTEGER (seconds) + default 15 + + This option is only relevant when "reliable connection tracking + events" are used. Normally, ctnetlink is "lossy", that is, + events are normally dropped when userspace listeners can't keep up. + + Userspace can request "reliable event mode". When this mode is + active, the conntrack will only be destroyed after the event was + delivered. If event delivery fails, the kernel periodically + re-tries to send the event to userspace. + + This is the maximum interval the kernel should use when re-trying + to deliver the destroy event. + + A higher number means there will be fewer delivery retries and it + will take longer for a backlog to be processed. + +nf_conntrack_expect_max - INTEGER + Maximum size of expectation table. Default value is + nf_conntrack_buckets / 256. Minimum is 1. + +nf_conntrack_frag6_high_thresh - INTEGER + default 262144 + + Maximum memory used to reassemble IPv6 fragments. When + nf_conntrack_frag6_high_thresh bytes of memory is allocated for this + purpose, the fragment handler will toss packets until + nf_conntrack_frag6_low_thresh is reached. + +nf_conntrack_frag6_low_thresh - INTEGER + default 196608 + + See nf_conntrack_frag6_low_thresh + +nf_conntrack_frag6_timeout - INTEGER (seconds) + default 60 + + Time to keep an IPv6 fragment in memory. + +nf_conntrack_generic_timeout - INTEGER (seconds) + default 600 + + Default for generic timeout. This refers to layer 4 unknown/unsupported + protocols. + +nf_conntrack_helper - BOOLEAN + 0 - disabled + not 0 - enabled (default) + + Enable automatic conntrack helper assignment. + +nf_conntrack_icmp_timeout - INTEGER (seconds) + default 30 + + Default for ICMP timeout. + +nf_conntrack_icmpv6_timeout - INTEGER (seconds) + default 30 + + Default for ICMP6 timeout. + +nf_conntrack_log_invalid - INTEGER + 0 - disable (default) + 1 - log ICMP packets + 6 - log TCP packets + 17 - log UDP packets + 33 - log DCCP packets + 41 - log ICMPv6 packets + 136 - log UDPLITE packets + 255 - log packets of any protocol + + Log invalid packets of a type specified by value. + +nf_conntrack_max - INTEGER + Size of connection tracking table. Default value is + nf_conntrack_buckets value * 4. + +nf_conntrack_tcp_be_liberal - BOOLEAN + 0 - disabled (default) + not 0 - enabled + + Be conservative in what you do, be liberal in what you accept from others. + If it's non-zero, we mark only out of window RST segments as INVALID. + +nf_conntrack_tcp_loose - BOOLEAN + 0 - disabled + not 0 - enabled (default) + + If it is set to zero, we disable picking up already established + connections. + +nf_conntrack_tcp_max_retrans - INTEGER + default 3 + + Maximum number of packets that can be retransmitted without + received an (acceptable) ACK from the destination. If this number + is reached, a shorter timer will be started. + +nf_conntrack_tcp_timeout_close - INTEGER (seconds) + default 10 + +nf_conntrack_tcp_timeout_close_wait - INTEGER (seconds) + default 60 + +nf_conntrack_tcp_timeout_established - INTEGER (seconds) + default 432000 (5 days) + +nf_conntrack_tcp_timeout_fin_wait - INTEGER (seconds) + default 120 + +nf_conntrack_tcp_timeout_last_ack - INTEGER (seconds) + default 30 + +nf_conntrack_tcp_timeout_max_retrans - INTEGER (seconds) + default 300 + +nf_conntrack_tcp_timeout_syn_recv - INTEGER (seconds) + default 60 + +nf_conntrack_tcp_timeout_syn_sent - INTEGER (seconds) + default 120 + +nf_conntrack_tcp_timeout_time_wait - INTEGER (seconds) + default 120 + +nf_conntrack_tcp_timeout_unacknowledged - INTEGER (seconds) + default 300 + +nf_conntrack_timestamp - BOOLEAN + 0 - disabled (default) + not 0 - enabled + + Enable connection tracking flow timestamping. + +nf_conntrack_udp_timeout - INTEGER (seconds) + default 30 + +nf_conntrack_udp_timeout_stream2 - INTEGER (seconds) + default 180 + + This extended timeout will be used in case there is an UDP stream + detected. diff --git a/Documentation/networking/operstates.txt b/Documentation/networking/operstates.txt index 1a77a3cfae54..97694572338b 100644 --- a/Documentation/networking/operstates.txt +++ b/Documentation/networking/operstates.txt @@ -88,6 +88,10 @@ set this flag. On netif_carrier_off(), the scheduler stops sending packets. The name 'carrier' and the inversion are historical, think of it as lower layer. +Note that for certain kind of soft-devices, which are not managing any +real hardware, there is possible to set this bit from userpsace. +One should use TVL IFLA_CARRIER to do so. + netif_carrier_ok() can be used to query that bit. __LINK_STATE_DORMANT, maps to IFF_DORMANT: diff --git a/Documentation/networking/phy.txt b/Documentation/networking/phy.txt index 95e5f5985a2a..d5b1a3935245 100644 --- a/Documentation/networking/phy.txt +++ b/Documentation/networking/phy.txt @@ -103,7 +103,7 @@ Letting the PHY Abstraction Layer do Everything Now, to connect, just call this function: - phydev = phy_connect(dev, phy_name, &adjust_link, flags, interface); + phydev = phy_connect(dev, phy_name, &adjust_link, interface); phydev is a pointer to the phy_device structure which represents the PHY. If phy_connect is successful, it will return the pointer. dev, here, is the @@ -113,7 +113,9 @@ Letting the PHY Abstraction Layer do Everything current state, though the PHY will not yet be truly operational at this point. - flags is a u32 which can optionally contain phy-specific flags. + PHY-specific flags should be set in phydev->dev_flags prior to the call + to phy_connect() such that the underlying PHY driver can check for flags + and perform specific operations based on them. This is useful if the system has put hardware restrictions on the PHY/controller, of which the PHY needs to be aware. @@ -185,11 +187,10 @@ Doing it all yourself start, or disables then frees them for stop. struct phy_device * phy_attach(struct net_device *dev, const char *phy_id, - u32 flags, phy_interface_t interface); + phy_interface_t interface); Attaches a network device to a particular PHY, binding the PHY to a generic - driver if none was found during bus initialization. Passes in - any phy-specific flags as needed. + driver if none was found during bus initialization. int phy_start_aneg(struct phy_device *phydev); diff --git a/Documentation/nfc/nfc-hci.txt b/Documentation/nfc/nfc-hci.txt index 89a339c9b079..0686c9e211c2 100644 --- a/Documentation/nfc/nfc-hci.txt +++ b/Documentation/nfc/nfc-hci.txt @@ -17,10 +17,12 @@ HCI HCI registers as an nfc device with NFC Core. Requests coming from userspace are routed through netlink sockets to NFC Core and then to HCI. From this point, they are translated in a sequence of HCI commands sent to the HCI layer in the -host controller (the chip). The sending context blocks while waiting for the -response to arrive. +host controller (the chip). Commands can be executed synchronously (the sending +context blocks waiting for response) or asynchronously (the response is returned +from HCI Rx context). HCI events can also be received from the host controller. They will be handled -and a translation will be forwarded to NFC Core as needed. +and a translation will be forwarded to NFC Core as needed. There are hooks to +let the HCI driver handle proprietary events or override standard behavior. HCI uses 2 execution contexts: - one for executing commands : nfc_hci_msg_tx_work(). Only one command can be executing at any given moment. @@ -33,6 +35,8 @@ The Session initialization is an HCI standard which must unfortunately support proprietary gates. This is the reason why the driver will pass a list of proprietary gates that must be part of the session. HCI will ensure all those gates have pipes connected when the hci device is set up. +In case the chip supports pre-opened gates and pseudo-static pipes, the driver +can pass that information to HCI core. HCI Gates and Pipes ------------------- @@ -46,6 +50,13 @@ without knowing the pipe connected to it. Driver interface ---------------- +A driver is generally written in two parts : the physical link management and +the HCI management. This makes it easier to maintain a driver for a chip that +can be connected using various phy (i2c, spi, ...) + +HCI Management +-------------- + A driver would normally register itself with HCI and provide the following entry points: @@ -53,58 +64,113 @@ struct nfc_hci_ops { int (*open)(struct nfc_hci_dev *hdev); void (*close)(struct nfc_hci_dev *hdev); int (*hci_ready) (struct nfc_hci_dev *hdev); - int (*xmit)(struct nfc_hci_dev *hdev, struct sk_buff *skb); - int (*start_poll)(struct nfc_hci_dev *hdev, u32 protocols); - int (*target_from_gate)(struct nfc_hci_dev *hdev, u8 gate, - struct nfc_target *target); + int (*xmit) (struct nfc_hci_dev *hdev, struct sk_buff *skb); + int (*start_poll) (struct nfc_hci_dev *hdev, + u32 im_protocols, u32 tm_protocols); + int (*dep_link_up)(struct nfc_hci_dev *hdev, struct nfc_target *target, + u8 comm_mode, u8 *gb, size_t gb_len); + int (*dep_link_down)(struct nfc_hci_dev *hdev); + int (*target_from_gate) (struct nfc_hci_dev *hdev, u8 gate, + struct nfc_target *target); int (*complete_target_discovered) (struct nfc_hci_dev *hdev, u8 gate, struct nfc_target *target); - int (*data_exchange) (struct nfc_hci_dev *hdev, - struct nfc_target *target, - struct sk_buff *skb, struct sk_buff **res_skb); + int (*im_transceive) (struct nfc_hci_dev *hdev, + struct nfc_target *target, struct sk_buff *skb, + data_exchange_cb_t cb, void *cb_context); + int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb); int (*check_presence)(struct nfc_hci_dev *hdev, struct nfc_target *target); + int (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event, + struct sk_buff *skb); }; - open() and close() shall turn the hardware on and off. - hci_ready() is an optional entry point that is called right after the hci session has been set up. The driver can use it to do additional initialization that must be performed using HCI commands. -- xmit() shall simply write a frame to the chip. +- xmit() shall simply write a frame to the physical link. - start_poll() is an optional entrypoint that shall set the hardware in polling mode. This must be implemented only if the hardware uses proprietary gates or a mechanism slightly different from the HCI standard. +- dep_link_up() is called after a p2p target has been detected, to finish +the p2p connection setup with hardware parameters that need to be passed back +to nfc core. +- dep_link_down() is called to bring the p2p link down. - target_from_gate() is an optional entrypoint to return the nfc protocols corresponding to a proprietary gate. - complete_target_discovered() is an optional entry point to let the driver perform additional proprietary processing necessary to auto activate the discovered target. -- data_exchange() must be implemented by the driver if proprietary HCI commands +- im_transceive() must be implemented by the driver if proprietary HCI commands are required to send data to the tag. Some tag types will require custom commands, others can be written to using the standard HCI commands. The driver can check the tag type and either do proprietary processing, or return 1 to ask -for standard processing. +for standard processing. The data exchange command itself must be sent +asynchronously. +- tm_send() is called to send data in the case of a p2p connection - check_presence() is an optional entry point that will be called regularly by the core to check that an activated tag is still in the field. If this is not implemented, the core will not be able to push tag_lost events to the user space +- event_received() is called to handle an event coming from the chip. Driver +can handle the event or return 1 to let HCI attempt standard processing. On the rx path, the driver is responsible to push incoming HCP frames to HCI using nfc_hci_recv_frame(). HCI will take care of re-aggregation and handling This must be done from a context that can sleep. -SHDLC ------ +PHY Management +-------------- + +The physical link (i2c, ...) management is defined by the following struture: + +struct nfc_phy_ops { + int (*write)(void *dev_id, struct sk_buff *skb); + int (*enable)(void *dev_id); + void (*disable)(void *dev_id); +}; + +enable(): turn the phy on (power on), make it ready to transfer data +disable(): turn the phy off +write(): Send a data frame to the chip. Note that to enable higher +layers such as an llc to store the frame for re-emission, this function must +not alter the skb. It must also not return a positive result (return 0 for +success, negative for failure). + +Data coming from the chip shall be sent directly to nfc_hci_recv_frame(). + +LLC +--- + +Communication between the CPU and the chip often requires some link layer +protocol. Those are isolated as modules managed by the HCI layer. There are +currently two modules : nop (raw transfert) and shdlc. +A new llc must implement the following functions: + +struct nfc_llc_ops { + void *(*init) (struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv, + rcv_to_hci_t rcv_to_hci, int tx_headroom, + int tx_tailroom, int *rx_headroom, int *rx_tailroom, + llc_failure_t llc_failure); + void (*deinit) (struct nfc_llc *llc); + int (*start) (struct nfc_llc *llc); + int (*stop) (struct nfc_llc *llc); + void (*rcv_from_drv) (struct nfc_llc *llc, struct sk_buff *skb); + int (*xmit_from_hci) (struct nfc_llc *llc, struct sk_buff *skb); +}; + +- init() : allocate and init your private storage +- deinit() : cleanup +- start() : establish the logical connection +- stop () : terminate the logical connection +- rcv_from_drv() : handle data coming from the chip, going to HCI +- xmit_from_hci() : handle data sent by HCI, going to the chip -Most chips use shdlc to ensure integrity and delivery ordering of the HCP -frames between the host controller (the chip) and hosts (entities connected -to the chip, like the cpu). In order to simplify writing the driver, an shdlc -layer is available for use by the driver. -When used, the driver actually registers with shdlc, and shdlc will register -with HCI. HCI sees shdlc as the driver and thus send its HCP frames -through shdlc->xmit. -SHDLC adds a new execution context (nfc_shdlc_sm_work()) to run its state -machine and handle both its rx and tx path. +The llc must be registered with nfc before it can be used. Do that by +calling nfc_llc_register(const char *name, struct nfc_llc_ops *ops); + +Again, note that the llc does not handle the physical link. It is thus very +easy to mix any physical link with any llc for a given chip driver. Included Drivers ---------------- @@ -117,10 +183,12 @@ Execution Contexts The execution contexts are the following: - IRQ handler (IRQH): -fast, cannot sleep. stores incoming frames into an shdlc rx queue +fast, cannot sleep. sends incoming frames to HCI where they are passed to +the current llc. In case of shdlc, the frame is queued in shdlc rx queue. - SHDLC State Machine worker (SMW) -handles shdlc rx & tx queues. Dispatches HCI cmd responses. +Only when llc_shdlc is used: handles shdlc rx & tx queues. +Dispatches HCI cmd responses. - HCI Tx Cmd worker (MSGTXWQ) Serializes execution of HCI commands. Completes execution in case of response @@ -166,6 +234,15 @@ waiting command execution. Response processing involves invoking the completion callback that was provided by nfc_hci_msg_tx_work() when it sent the command. The completion callback will then wake the syscall context. +It is also possible to execute the command asynchronously using this API: + +static int nfc_hci_execute_cmd_async(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd, + const u8 *param, size_t param_len, + data_exchange_cb_t cb, void *cb_context) + +The workflow is the same, except that the API call returns immediately, and +the callback will be called with the result from the SMW context. + Workflow receiving an HCI event or command ------------------------------------------ diff --git a/Documentation/nfc/nfc-pn544.txt b/Documentation/nfc/nfc-pn544.txt index 2fcac9f5996e..b36ca14ca2d6 100644 --- a/Documentation/nfc/nfc-pn544.txt +++ b/Documentation/nfc/nfc-pn544.txt @@ -1,32 +1,15 @@ Kernel driver for the NXP Semiconductors PN544 Near Field Communication chip -Author: Jari Vanhala -Contact: Matti Aaltonen (matti.j.aaltonen at nokia.com) - General ------- The PN544 is an integrated transmission module for contactless communication. The driver goes under drives/nfc/ and is compiled as a -module named "pn544". It registers a misc device and creates a device -file named "/dev/pn544". +module named "pn544". Host Interfaces: I2C, SPI and HSU, this driver supports currently only I2C. -The Interface -------------- - -The driver offers a sysfs interface for a hardware test and an IOCTL -interface for selecting between two operating modes. There are read, -write and poll functions for transferring messages. The two operating -modes are the normal (HCI) mode and the firmware update mode. - -PN544 is controlled by sending messages from the userspace to the -chip. The main function of the driver is just to pass those messages -without caring about the message content. - - Protocols --------- @@ -47,68 +30,3 @@ and third (LSB) bytes of the message. The maximum FW message length is For the ETSI HCI specification see http://www.etsi.org/WebSite/Technologies/ProtocolSpecification.aspx - -The Hardware Test ------------------ - -The idea of the test is that it can performed by reading from the -corresponding sysfs file. The test is implemented in the board file -and it should test that PN544 can be put into the firmware update -mode. If the test is not implemented the sysfs file does not get -created. - -Example: -> cat /sys/module/pn544/drivers/i2c\:pn544/3-002b/nfc_test -1 - -Normal Operation ----------------- - -PN544 is powered up when the device file is opened, otherwise it's -turned off. Only one instance can use the device at a time. - -Userspace applications control PN544 with HCI messages. The hardware -sends an interrupt when data is available for reading. Data is -physically read when the read function is called by a userspace -application. Poll() checks the read interrupt state. Configuration and -self testing are also done from the userspace using read and write. - -Example platform data: - -static int rx71_pn544_nfc_request_resources(struct i2c_client *client) -{ - /* Get and setup the HW resources for the device */ -} - -static void rx71_pn544_nfc_free_resources(void) -{ - /* Release the HW resources */ -} - -static void rx71_pn544_nfc_enable(int fw) -{ - /* Turn the device on */ -} - -static int rx71_pn544_nfc_test(void) -{ - /* - * Put the device into the FW update mode - * and then back to the normal mode. - * Check the behavior and return one on success, - * zero on failure. - */ -} - -static void rx71_pn544_nfc_disable(void) -{ - /* turn the power off */ -} - -static struct pn544_nfc_platform_data rx71_nfc_data = { - .request_resources = rx71_pn544_nfc_request_resources, - .free_resources = rx71_pn544_nfc_free_resources, - .enable = rx71_pn544_nfc_enable, - .test = rx71_pn544_nfc_test, - .disable = rx71_pn544_nfc_disable, -}; diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt index da40efbef6ec..a2b57e0a1db0 100644 --- a/Documentation/pinctrl.txt +++ b/Documentation/pinctrl.txt @@ -972,6 +972,18 @@ pinmux core. Pin control requests from drivers ================================= +When a device driver is about to probe the device core will automatically +attempt to issue pinctrl_get_select_default() on these devices. +This way driver writers do not need to add any of the boilerplate code +of the type found below. However when doing fine-grained state selection +and not using the "default" state, you may have to do some device driver +handling of the pinctrl handles and states. + +So if you just want to put the pins for a certain device into the default +state and be done with it, there is nothing you need to do besides +providing the proper mapping table. The device core will take care of +the rest. + Generally it is discouraged to let individual drivers get and enable pin control. So if possible, handle the pin control in platform code or some other place where you have access to all the affected struct device * pointers. In @@ -1097,9 +1109,9 @@ situations that can be electrically unpleasant, you will certainly want to mux in and bias pins in a certain way before the GPIO subsystems starts to deal with them. -The above can be hidden: using pinctrl hogs, the pin control driver may be -setting up the config and muxing for the pins when it is probing, -nevertheless orthogonal to the GPIO subsystem. +The above can be hidden: using the device core, the pinctrl core may be +setting up the config and muxing for the pins right before the device is +probing, nevertheless orthogonal to the GPIO subsystem. But there are also situations where it makes sense for the GPIO subsystem to communicate directly with with the pinctrl subsystem, using the latter diff --git a/Documentation/power/freezing-of-tasks.txt b/Documentation/power/freezing-of-tasks.txt index 6ec291ea1c78..85894d83b352 100644 --- a/Documentation/power/freezing-of-tasks.txt +++ b/Documentation/power/freezing-of-tasks.txt @@ -223,3 +223,8 @@ since they ask the freezer to skip freezing this task, since it is anyway only after the entire suspend/hibernation sequence is complete. So, to summarize, use [un]lock_system_sleep() instead of directly using mutex_[un]lock(&pm_mutex). That would prevent freezing failures. + +V. Miscellaneous +/sys/power/pm_freeze_timeout controls how long it will cost at most to freeze +all user space processes or all freezable kernel threads, in unit of millisecond. +The default value is 20000, with range of unsigned integer. diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 03591a750f99..6c9f5d9aa115 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -426,6 +426,10 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: 'power.runtime_error' is set or 'power.disable_depth' is greater than zero) + bool pm_runtime_active(struct device *dev); + - return true if the device's runtime PM status is 'active' or its + 'power.disable_depth' field is not equal to zero, or false otherwise + bool pm_runtime_suspended(struct device *dev); - return true if the device's runtime PM status is 'suspended' and its 'power.disable_depth' field is equal to zero, or false otherwise diff --git a/Documentation/trace/events-power.txt b/Documentation/trace/events-power.txt index cf794af22855..e1498ff8cf94 100644 --- a/Documentation/trace/events-power.txt +++ b/Documentation/trace/events-power.txt @@ -17,7 +17,7 @@ Cf. include/trace/events/power.h for the events definitions. 1. Power state switch events ============================ -1.1 New trace API +1.1 Trace API ----------------- A 'cpu' event class gathers the CPU-related events: cpuidle and @@ -41,31 +41,6 @@ The event which has 'state=4294967295' in the trace is very important to the use space tools which are using it to detect the end of the current state, and so to correctly draw the states diagrams and to calculate accurate statistics etc. -1.2 DEPRECATED trace API ------------------------- - -A new Kconfig option CONFIG_EVENT_POWER_TRACING_DEPRECATED with the default value of -'y' has been created. This allows the legacy trace power API to be used conjointly -with the new trace API. -The Kconfig option, the old trace API (in include/trace/events/power.h) and the -old trace points will disappear in a future release (namely 2.6.41). - -power_start "type=%lu state=%lu cpu_id=%lu" -power_frequency "type=%lu state=%lu cpu_id=%lu" -power_end "cpu_id=%lu" - -The 'type' parameter takes one of those macros: - . POWER_NONE = 0, - . POWER_CSTATE = 1, /* C-State */ - . POWER_PSTATE = 2, /* Frequency change or DVFS */ - -The 'state' parameter is set depending on the type: - . Target C-state for type=POWER_CSTATE, - . Target frequency for type=POWER_PSTATE, - -power_end is used to indicate the exit of a state, corresponding to the latest -power_start event. - 2. Clocks events ================ The clock events are used for clock enable/disable and for diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 6f51fed45f2d..53d6a3c51d87 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -1842,6 +1842,89 @@ an error. # cat buffer_size_kb 85 +Snapshot +-------- +CONFIG_TRACER_SNAPSHOT makes a generic snapshot feature +available to all non latency tracers. (Latency tracers which +record max latency, such as "irqsoff" or "wakeup", can't use +this feature, since those are already using the snapshot +mechanism internally.) + +Snapshot preserves a current trace buffer at a particular point +in time without stopping tracing. Ftrace swaps the current +buffer with a spare buffer, and tracing continues in the new +current (=previous spare) buffer. + +The following debugfs files in "tracing" are related to this +feature: + + snapshot: + + This is used to take a snapshot and to read the output + of the snapshot. Echo 1 into this file to allocate a + spare buffer and to take a snapshot (swap), then read + the snapshot from this file in the same format as + "trace" (described above in the section "The File + System"). Both reads snapshot and tracing are executable + in parallel. When the spare buffer is allocated, echoing + 0 frees it, and echoing else (positive) values clear the + snapshot contents. + More details are shown in the table below. + + status\input | 0 | 1 | else | + --------------+------------+------------+------------+ + not allocated |(do nothing)| alloc+swap | EINVAL | + --------------+------------+------------+------------+ + allocated | free | swap | clear | + --------------+------------+------------+------------+ + +Here is an example of using the snapshot feature. + + # echo 1 > events/sched/enable + # echo 1 > snapshot + # cat snapshot +# tracer: nop +# +# entries-in-buffer/entries-written: 71/71 #P:8 +# +# _-----=> irqs-off +# / _----=> need-resched +# | / _---=> hardirq/softirq +# || / _--=> preempt-depth +# ||| / delay +# TASK-PID CPU# |||| TIMESTAMP FUNCTION +# | | | |||| | | + <idle>-0 [005] d... 2440.603828: sched_switch: prev_comm=swapper/5 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2242 next_prio=120 + sleep-2242 [005] d... 2440.603846: sched_switch: prev_comm=snapshot-test-2 prev_pid=2242 prev_prio=120 prev_state=R ==> next_comm=kworker/5:1 next_pid=60 next_prio=120 +[...] + <idle>-0 [002] d... 2440.707230: sched_switch: prev_comm=swapper/2 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2229 next_prio=120 + + # cat trace +# tracer: nop +# +# entries-in-buffer/entries-written: 77/77 #P:8 +# +# _-----=> irqs-off +# / _----=> need-resched +# | / _---=> hardirq/softirq +# || / _--=> preempt-depth +# ||| / delay +# TASK-PID CPU# |||| TIMESTAMP FUNCTION +# | | | |||| | | + <idle>-0 [007] d... 2440.707395: sched_switch: prev_comm=swapper/7 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=snapshot-test-2 next_pid=2243 next_prio=120 + snapshot-test-2-2229 [002] d... 2440.707438: sched_switch: prev_comm=snapshot-test-2 prev_pid=2229 prev_prio=120 prev_state=S ==> next_comm=swapper/2 next_pid=0 next_prio=120 +[...] + + +If you try to use this snapshot feature when current tracer is +one of the latency tracers, you will get the following results. + + # echo wakeup > current_tracer + # echo 1 > snapshot +bash: echo: write error: Device or resource busy + # cat snapshot +cat: snapshot: Device or resource busy + ----------- More details can be found in the source code, in the diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index a4df5535996b..c25439a58274 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -293,7 +293,7 @@ kvm_run' (see below). 4.11 KVM_GET_REGS Capability: basic -Architectures: all +Architectures: all except ARM Type: vcpu ioctl Parameters: struct kvm_regs (out) Returns: 0 on success, -1 on error @@ -314,7 +314,7 @@ struct kvm_regs { 4.12 KVM_SET_REGS Capability: basic -Architectures: all +Architectures: all except ARM Type: vcpu ioctl Parameters: struct kvm_regs (in) Returns: 0 on success, -1 on error @@ -600,7 +600,7 @@ struct kvm_fpu { 4.24 KVM_CREATE_IRQCHIP Capability: KVM_CAP_IRQCHIP -Architectures: x86, ia64 +Architectures: x86, ia64, ARM Type: vm ioctl Parameters: none Returns: 0 on success, -1 on error @@ -608,21 +608,39 @@ Returns: 0 on success, -1 on error Creates an interrupt controller model in the kernel. On x86, creates a virtual ioapic, a virtual PIC (two PICs, nested), and sets up future vcpus to have a local APIC. IRQ routing for GSIs 0-15 is set to both PIC and IOAPIC; GSI 16-23 -only go to the IOAPIC. On ia64, a IOSAPIC is created. +only go to the IOAPIC. On ia64, a IOSAPIC is created. On ARM, a GIC is +created. 4.25 KVM_IRQ_LINE Capability: KVM_CAP_IRQCHIP -Architectures: x86, ia64 +Architectures: x86, ia64, arm Type: vm ioctl Parameters: struct kvm_irq_level Returns: 0 on success, -1 on error Sets the level of a GSI input to the interrupt controller model in the kernel. -Requires that an interrupt controller model has been previously created with -KVM_CREATE_IRQCHIP. Note that edge-triggered interrupts require the level -to be set to 1 and then back to 0. +On some architectures it is required that an interrupt controller model has +been previously created with KVM_CREATE_IRQCHIP. Note that edge-triggered +interrupts require the level to be set to 1 and then back to 0. + +ARM can signal an interrupt either at the CPU level, or at the in-kernel irqchip +(GIC), and for in-kernel irqchip can tell the GIC to use PPIs designated for +specific cpus. The irq field is interpreted like this: + + bits: | 31 ... 24 | 23 ... 16 | 15 ... 0 | + field: | irq_type | vcpu_index | irq_id | + +The irq_type field has the following values: +- irq_type[0]: out-of-kernel GIC: irq_id 0 is IRQ, irq_id 1 is FIQ +- irq_type[1]: in-kernel GIC: SPI, irq_id between 32 and 1019 (incl.) + (the vcpu_index field is ignored) +- irq_type[2]: in-kernel GIC: PPI, irq_id between 16 and 31 (incl.) + +(The irq_id field thus corresponds nicely to the IRQ ID in the ARM GIC specs) + +In both cases, level is used to raise/lower the line. struct kvm_irq_level { union { @@ -1775,6 +1793,27 @@ registers, find a list below: PPC | KVM_REG_PPC_VPA_DTL | 128 PPC | KVM_REG_PPC_EPCR | 32 +ARM registers are mapped using the lower 32 bits. The upper 16 of that +is the register group type, or coprocessor number: + +ARM core registers have the following id bit patterns: + 0x4002 0000 0010 <index into the kvm_regs struct:16> + +ARM 32-bit CP15 registers have the following id bit patterns: + 0x4002 0000 000F <zero:1> <crn:4> <crm:4> <opc1:4> <opc2:3> + +ARM 64-bit CP15 registers have the following id bit patterns: + 0x4003 0000 000F <zero:1> <zero:4> <crm:4> <opc1:4> <zero:3> + +ARM CCSIDR registers are demultiplexed by CSSELR value: + 0x4002 0000 0011 00 <csselr:8> + +ARM 32-bit VFP control registers have the following id bit patterns: + 0x4002 0000 0012 1 <regno:12> + +ARM 64-bit FP registers have the following id bit patterns: + 0x4002 0000 0012 0 <regno:12> + 4.69 KVM_GET_ONE_REG Capability: KVM_CAP_ONE_REG @@ -2127,6 +2166,50 @@ written, then `n_invalid' invalid entries, invalidating any previously valid entries found. +4.77 KVM_ARM_VCPU_INIT + +Capability: basic +Architectures: arm +Type: vcpu ioctl +Parameters: struct struct kvm_vcpu_init (in) +Returns: 0 on success; -1 on error +Errors: + EINVAL: the target is unknown, or the combination of features is invalid. + ENOENT: a features bit specified is unknown. + +This tells KVM what type of CPU to present to the guest, and what +optional features it should have. This will cause a reset of the cpu +registers to their initial values. If this is not called, KVM_RUN will +return ENOEXEC for that vcpu. + +Note that because some registers reflect machine topology, all vcpus +should be created before this ioctl is invoked. + +Possible features: + - KVM_ARM_VCPU_POWER_OFF: Starts the CPU in a power-off state. + Depends on KVM_CAP_ARM_PSCI. + + +4.78 KVM_GET_REG_LIST + +Capability: basic +Architectures: arm +Type: vcpu ioctl +Parameters: struct kvm_reg_list (in/out) +Returns: 0 on success; -1 on error +Errors: + E2BIG: the reg index list is too big to fit in the array specified by + the user (the number required will be written into n). + +struct kvm_reg_list { + __u64 n; /* number of registers in reg[] */ + __u64 reg[0]; +}; + +This ioctl returns the guest registers that are supported for the +KVM_GET_ONE_REG/KVM_SET_ONE_REG calls. + + 5. The kvm_run structure ------------------------ diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt index e540fd67f767..b443f1de0e5a 100644 --- a/Documentation/x86/boot.txt +++ b/Documentation/x86/boot.txt @@ -390,6 +390,7 @@ Protocol: 2.00+ F Special (0xFF = undefined) 10 Reserved 11 Minimal Linux Bootloader <http://sebastian-plotz.blogspot.de> + 12 OVMF UEFI virtualization stack Please contact <hpa@zytor.com> if you need a bootloader ID value assigned. diff --git a/Documentation/zh_CN/magic-number.txt b/Documentation/zh_CN/magic-number.txt index 4263022f5002..2ebe539f5450 100644 --- a/Documentation/zh_CN/magic-number.txt +++ b/Documentation/zh_CN/magic-number.txt @@ -122,7 +122,7 @@ SLAB_C_MAGIC 0x4f17a36d kmem_cache mm/slab.c COW_MAGIC 0x4f4f4f4d cow_header_v1 arch/um/drivers/ubd_user.c I810_CARD_MAGIC 0x5072696E i810_card sound/oss/i810_audio.c TRIDENT_CARD_MAGIC 0x5072696E trident_card sound/oss/trident.c -ROUTER_MAGIC 0x524d4157 wan_device include/linux/wanrouter.h +ROUTER_MAGIC 0x524d4157 wan_device [in wanrouter.h pre 3.9] SCC_MAGIC 0x52696368 gs_port drivers/char/scc.h SAVEKMSG_MAGIC1 0x53415645 savekmsg arch/*/amiga/config.c GDA_MAGIC 0x58464552 gda arch/mips/include/asm/sn/gda.h |