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* make simple_lookup() usable for filesystems that set ->s_d_opAl Viro2013-07-141-1/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* configfs: don't open-code d_alloc_name()Al Viro2013-07-141-11/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* __rpc_lookup_create_exclusive: pass string instead of qstrAl Viro2013-07-141-25/+9
| | | | | | ... and use d_hash_and_lookup() instead of open-coding it, for fsck sake... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* rpc_create_*_dir: don't bother with qstrAl Viro2013-07-144-33/+23
| | | | | | just pass the name Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* llist: llist_add() can use llist_add_batch()Oleg Nesterov2013-07-131-10/+4
| | | | | | | | | | | | | | | | | | | llist_add(new, head) can simply use llist_add_batch(new, new, head), no need to duplicate the code. This obviously uninlines llist_add() and to me this is a win. But we can make llist_add_batch() inline if this is desirable, in this case gcc can notice that new_first == new_last if the caller is llist_add(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: David Howells <dhowells@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* llist: fix/simplify llist_add() and llist_add_batch()Oleg Nesterov2013-07-132-22/+12
| | | | | | | | | | | | | | | | | | | | | | | | | 1. This is mostly theoretical, but llist_add*() need ACCESS_ONCE(). Otherwise it is not guaranteed that the first cmpxchg() uses the same value for old_entry and new_last->next. 2. These helpers cache the result of cmpxchg() and read the initial value of head->first before the main loop. I do not think this makes sense. In the likely case cmpxchg() succeeds, otherwise it doesn't hurt to reload head->first. I think it would be better to simplify the code and simply read ->first before cmpxchg(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: David Howells <dhowells@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fput: turn "list_head delayed_fput_list" into llist_headOleg Nesterov2013-07-132-15/+12
| | | | | | | | | | | | | | | | | | fput() and delayed_fput() can use llist and avoid the locking. This is unlikely path, it is not that this change can improve the performance, but this way the code looks simpler. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: David Howells <dhowells@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/file_table.c:fput(): add commentAndrew Morton2013-07-131-0/+6
| | | | | | | | | | | | | A missed update to "fput: task_work_add() can fail if the caller has passed exit_task_work()". Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: David Howells <dhowells@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Safer ABI for O_TMPFILEAl Viro2013-07-136-8/+12
| | | | | | | | [suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE; that will fail on old kernels in a lot more cases than what I came up with. And make sure O_CREAT doesn't get there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ncpfs: fix error return code in ncp_parse_options()Wei Yongjun2013-07-081-3/+9
| | | | | | | | Fix to return -EINVAL from the option parse error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* locks: move file_lock_list to a set of percpu hlist_heads and convert ↵Jeff Layton2013-07-082-20/+50
| | | | | | | | | | | | | | | | | | | | | file_lock_lock to an lglock The file_lock_list is only used for /proc/locks. The vastly common case is for locks to be put onto the list and come off again, without ever being traversed. Help optimize for this use-case by moving to percpu hlist_head-s. At the same time, we can make the locking less contentious by moving to an lglock. When iterating over the lists for /proc/locks, we must take the global lock and then iterate over each CPU's list in turn. This change necessitates a new fl_link_cpu field to keep track of which CPU the entry is on. On x86_64 at least, this field is placed within an existing hole in the struct to avoid growing the size. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* seq_file: add seq_list_*_percpu helpersJeff Layton2013-07-082-0/+60
| | | | | | | | | | When we convert the file_lock_list to a set of percpu lists, we'll need a way to iterate over them in order to output /proc/locks info. Add some seq_list_*_percpu helpers to handle that. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* f2fs: fix readdir incorrectnessJaegeuk Kim2013-07-081-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | In the previous Al Viro's readdir patch set, there occurs a bug when running xfstest: 006 as follows. [Error output] alpha size = 4, name length = 6, total files = 4096, nproc=1 1023 files created rm: cannot remove `/mnt/f2fs/permname.15150/a': Directory not empty [Correct output] alpha size = 4, name length = 6, total files = 4096, nproc=1 4097 files created This bug is due to the misupdate of directory position in ctx. So, this patch fixes this. [AV: fixed a braino] CC: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* mode_t whack-a-mole...Al Viro2013-07-062-7/+7
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* lustre: kill the pointless wrapperAl Viro2013-07-057-14/+12
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* helper for reading ->d_countAl Viro2013-07-0512-17/+22
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-07-0416-88/+176
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull device tree updates from Grant Likely: "This branch contains the following changes: - Removal of CONFIG_OF_DEVICE, it is always enabled by CONFIG_OF - Remove #ifdef from linux/of_platform.h to increase compiler syntax coverage - Bug fix for address decoding on Bimini and js2x powerpc platforms. - miscellaneous binding changes One note on the above. The binding changes going in from all kinds of different trees has gotten rather out of hand. I picked up some during this cycle, but even going though my tree isn't a great fit. Ian Campbell has prototyped splitting the bindings and .dtb files into a separate repository. The plan is to migrate to using that sometime in the next few kernel releases which should get rid of a lot of the churn on binding docs and .dts files" * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux: of: Fix address decoding on Bimini and js2x machines of: remove CONFIG_OF_DEVICE usb: chipidea: depend on CONFIG_OF instead of CONFIG_OF_DEVICE of: remove of_platform_driver ibmebus: convert of_platform_driver to platform_driver driver core: move to_platform_driver to platform_device.h mfd: DT bindings for the palmas family MFD ARM: dts: omap3-devkit8000: fix NAND memory binding of/base: fix typos of: remove #ifdef from linux/of_platform.h
| * of: Fix address decoding on Bimini and js2x machinesBenjamin Herrenschmidt2013-07-041-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit: e38c0a1fbc5803cbacdaac0557c70ac8ca5152e7 of/address: Handle #address-cells > 2 specially broke real time clock access on Bimini, js2x, and similar powerpc machines using the "maple" platform. That code was indirectly relying on the old (broken) behaviour of the translation for the hypertransport to ISA bridge. This fixes it by treating hypertransport as a PCI bus Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * of: remove CONFIG_OF_DEVICERob Herring2013-06-123-8/+4
| | | | | | | | | | | | | | | | | | | | | | CONFIG_OF_DEVICE is always selected when CONFIG_OF is enabled, so remove it and simplify of_platform.h and of_device.h headers. This also fixes !OF compiles using of_platform_populate. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * usb: chipidea: depend on CONFIG_OF instead of CONFIG_OF_DEVICERob Herring2013-06-121-1/+1
| | | | | | | | | | | | | | | | | | | | CONFIG_OF_DEVICE is going away, so use CONFIG_OF instead. It does not appear that CONFIG_OF_DEVICE was the correct dependency either. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * of: remove of_platform_driverRob Herring2013-06-121-21/+0
| | | | | | | | | | | | | | | | | | | | The last user of of_platform_driver is converted to a regular platform_driver, so of_platform_driver can be removed now. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * ibmebus: convert of_platform_driver to platform_driverRob Herring2013-06-124-22/+17
| | | | | | | | | | | | | | | | | | | | ibmebus is the last remaining user of of_platform_driver and the conversion to a regular platform driver is trivial. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * driver core: move to_platform_driver to platform_device.hRob Herring2013-06-122-3/+3
| | | | | | | | | | | | | | | | | | | | | | In converting the last remaining of_platform_driver (ibmebus) to a regular platform driver, to_platform_driver is needed to replace to_of_platform_driver. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * mfd: DT bindings for the palmas family MFDJ Keerthy2013-06-122-0/+121
| | | | | | | | | | | | | | | | | | | | | | Add the various binding files for the palmas family of chips. There is a top level MFD binding then a seperate binding for regulators IP blocks on chips. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: J Keerthy <j-keerthy@ti.com> Signed-off-by: Ian Lartey <ian@slimlogic.co.uk> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * ARM: dts: omap3-devkit8000: fix NAND memory bindingFlorian Vaussard2013-06-121-14/+15
| | | | | | | | | | | | | | | | | | Commit d36b4cd 'ARM: OMAP2+: Add additional GPMC timing parameters' updated GPMC binding, but omap3-devkit8000 was not updated accordingly, resulting in a broken configuration. Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * of/base: fix typosLad, Prabhakar2013-06-121-6/+6
| | | | | | | | | | | | | | | | | | the function of_property_read_u8/16/32_array() has a parameter out_values, but the description mentioned it as out_value. This patch fixes this typo. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * of: remove #ifdef from linux/of_platform.hArnd Bergmann2013-06-121-11/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A lot of code uses the functions from of_platform.h when built for devicetree-enabled platforms but can also be built without them. In order to avoid using #ifdef everywhere in drivers, this makes all the function declarations visible, which means we can use "if (IS_ENABLED(CONFIG_OF))" in driver code and get build coverage over the code but let the compiler drop the reference in the object code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2013-07-04105-512/+4793
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "First round of updates for the input subsystem. You will get a new touchsreen driver for Cypress 4th generation devices, a driver for a special controller implementing PS/2 protocol in OLPC devices, and a driver for power key for SiRFprimaII PWRC. HID and bcm5497 now support for the 2013 MacBook Air. EVIOCGKEY and the rest of evdev ioctls now flush events of matching type from the client's event queue so that clients can be sure any events received after issuing EVIOCG* ioctl are new events. And a host of cleanups and improvements in other drivers" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (87 commits) Input: cyttsp4 - kfree xfer_buf on error path in probe() Input: tps6507x-ts - select INPUT_POLLDEV Input: bcm5974 - add support for the 2013 MacBook Air HID: apple: Add support for the 2013 Macbook Air Input: cyttsp4 - leak on error path in probe() Input: cyttsp4 - silence NULL dereference warning Input: cyttsp4 - silence shift wrap warning Input: tps6507x-ts - convert to polled input device infrastructure ARM: davinci: da850-evm: remove vref from touchscreen platform data Input: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devices Input: cyttsp4 - I2C driver for Cypress TMA4XX touchscreen devices Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devices Input: cyttsp - I2C driver split into two modules Input: add OLPC AP-SP driver Input: nspire-keypad - remove redundant dev_err call in nspire_keypad_probe() Input: tps6507x-ts - remove vref from platform data Input: tps6507x-ts - use bool for booleans Input: tps6507x-ts - remove bogus unreachable code Input: samsung-keypad - let device core setup the default pin configuration Input: wacom_i2c - implement hovering capability ...
| * | Input: cyttsp4 - kfree xfer_buf on error path in probe()Ferruh Yigit2013-07-041-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | If probe() fails after cd->xfer_buf allocated, it will not freed. Added kfree(cd->xfer_buf) with and error label. Signed-off-by: Ferruh Yigit <fery@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: tps6507x-ts - select INPUT_POLLDEVDmitry Torokhov2013-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | Since the driver was converted to polled device infrastructure we need to make sure it is enabled. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: bcm5974 - add support for the 2013 MacBook AirDmitry Torokhov2013-07-021-2/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The June 2013 Macbook Air (13'') has a new trackpad protocol; four new values are inserted in the header, and the mode switch is no longer needed. This patch adds support for the new devices. Cc: stable@vger.kernel.org Reported-and-tested-by: Brad Ford <plymouthffl@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | HID: apple: Add support for the 2013 Macbook AirDmitry Torokhov2013-07-023-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds keyboard support for MacbookAir6,2 as WELLSPRING8 (0x0291, 0x0292, 0x0293). The touchpad is handled in a separate bcm5974 patch, as usual. Cc: stable@vger.kernel.org Reported-and-tested-by: Brad Ford <plymouthffl@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: cyttsp4 - leak on error path in probe()Dan Carpenter2013-07-021-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We leak "cd" if the cd->xfer_buf allocation fails. It was weird to "goto error_gpio_irq" so I changed the label name. (Label names should reflect the label location not the goto location otherwise you get an "all roads lead to Rome problem"). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: cyttsp4 - silence NULL dereference warningDan Carpenter2013-07-021-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | If "cd" were NULL then we would dereference it when we print the error message. Fortunately enough, it can't ever be NULL so we can remove those lines. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: cyttsp4 - silence shift wrap warningDan Carpenter2013-07-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | "*max" is a size_t (long) type but "1" is an int so static checkers complain that the shift could wrap. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Merge branch 'next' into for-linusDmitry Torokhov2013-07-0210653-391528/+661084
| |\ \ | | | | | | | | | | | | Prepare first set of updates for 3.11 merge window.
| | * | Input: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devicesFerruh Yigit2013-06-303-0/+215
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cypress TrueTouch(tm) Standard Product controllers, Generation4 devices, SPI adapter module. This driver adds communication support with TTSP controller using SPI bus. Signed-off-by: Ferruh Yigit <fery@cypress.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: cyttsp4 - I2C driver for Cypress TMA4XX touchscreen devicesFerruh Yigit2013-06-303-0/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cypress TrueTouch(tm) Standard Product controllers, Generation4 devices, I2C adapter module. This driver adds communication support with TTSP controller using I2C bus. Signed-off-by: Ferruh Yigit <fery@cypress.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: cyttsp4 - add core driver for Cypress TMA4XX touchscreen devicesFerruh Yigit2013-06-305-0/+2730
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cypress TrueTouch(tm) Standard Product controllers, Generetion4 devices, Core driver. Core driver is interface between host and TTSP controller and processes data sent by controller. Responsibilities of module are IRQ handling, reading system information registers and sending multi-touch protocol type B events. Signed-off-by: Ferruh Yigit <fery@cypress.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: cyttsp - I2C driver split into two modulesFerruh Yigit2013-06-306-74/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Existing I2C code is for TrueTouch Gen3 devices TrueTouch Gen4 device is using same protocol, will split driver into two pieces to use common code with both drivers. Read/Write functions parameter list modified, since shared code will be used by two separate drivers and these drivers are not sharing same structs, parameters updated to use common structures. Signed-off-by: Ferruh Yigit <fery@cypress.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: add OLPC AP-SP driverDaniel Drake2013-06-304-0/+311
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OLPC XO-1.75 and XO-4 laptops include a PS/2 touchpad and an AT keyboard, yet they do not have a hardware PS/2 controller. Instead, a firmware runs on a dedicated core ("Security Processor", part of the SoC) that acts as a PS/2 controller through bit-banging. Communication between the main cpu (Application Processor) and the Security Processor happens via a standard command mechanism implemented by the SoC. Add a driver for this interface to enable keyboard/mouse input on this platform. Original author: Saadia Baloch Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: nspire-keypad - remove redundant dev_err call in nspire_keypad_probe()Wei Yongjun2013-06-271-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Merge branch 'for-next' of git://github.com/rydberg/linux into nextDmitry Torokhov2013-06-2710569-391222/+656479
| | |\ \ | | | | | | | | | | | | | | | Pull in changes from Henrik: "a trivial MT documentation fix".
| | | * | Input: MT - Specify that ABS_MT_SLOT must have a minimum of 0Peter Hutterer2013-06-131-0/+2
| | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is effectively already in force through input_mt_init_slots, and uinput too ignores the actual minimum. Since slots are a kernel-genenerated axis only, non-zero minimums make little sense and are likely to cause errors. Better to treat a non-zero minimum as kernel bug if it ever happens. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
| | * | Input: wacom_i2c - implement hovering capabilityTatsunosuke Tobita2013-06-181-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although BTN_TOOL_PEN and BTN_TOOL_RUBBER functioned properly, the driver didn't have hover functionality, so it's been added. Also, "WACOM_RETRY_CNT" was not used, so it was removed. Signed-off-by: Tatsunosuke Tobita <tobita.tatsunosuke@wacom.co.jp> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: pxa27x-keypad - make platform data constDmitry Torokhov2013-06-181-24/+23
| | | | | | | | | | | | | | | | | | | | | | | | It should not be changed by the driver, so let's make it const pointer. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: pxa27x-keypad - convert to using SIMPLE_DEV_PM_OPSDmitry Torokhov2013-06-181-8/+5
| | | | | | | | | | | | | | | | Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: pxa27x-keypad - add device tree supportChao Xie2013-06-182-4/+302
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: pxa27x-keypad - use matrix_keymap for matrix keysChao Xie2013-06-1818-81/+180
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pxa27x-keypad includes matrix keys. Make use of matrix_keymap for the matrix keys. Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| | * | Input: evdev - flush queues during EVIOCGKEY-like ioctlsDavid Herrmann2013-06-091-4/+129
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If userspace requests current KEY-state, they very likely assume that no such events are pending in the output queue of the evdev device. Otherwise, they will parse events which they already handled via EVIOCGKEY(). For XKB applications this can cause irreversible keyboard states if a modifier is locked multiple times because a CTRL-DOWN event is handled once via EVIOCGKEY() and once from the queue via read(), even though it should handle it only once. Therefore, lets do the only logical thing and flush the evdev queue atomically during this ioctl. We only flush events that are affected by the given ioctl. This only affects boolean events like KEY, SND, SW and LED. ABS, REL and others are not affected as duplicate events can be handled gracefully by user-space. Note: This actually breaks semantics of the evdev ABI. However, investigations showed that userspace already expects the new semantics and we end up fixing at least all XKB applications. All applications that are aware of this race-condition mirror the KEY state for each open-file and detect/drop duplicate events. Hence, they do not care whether duplicates are posted or not and work fine with this fix. Also note that we need proper locking to guarantee atomicity and avoid dead-locks. event_lock must be locked before queue_lock (see input-core). However, we can safely release event_lock while flushing the queue. This allows the input-core to proceed with pending events and only stop if it needs our queue_lock to post new events. This should guarantee that we don't block event-dispatching for too long while flushing a single event queue. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 15:09:45 +0000