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* mm: remove CONFIG_NO_BOOTMEMMike Rapoport2018-10-3124-26/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All achitectures select NO_BOOTMEM which essentially becomes 'Y' for any kernel configuration and therefore it can be removed. [alexander.h.duyck@linux.intel.com: remove now defunct NO_BOOTMEM from depends list for deferred init] Link: http://lkml.kernel.org/r/20180925201814.3576.15105.stgit@localhost.localdomain Link: http://lkml.kernel.org/r/1536927045-23536-3-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kernel/signal.c: fix a comment errorWeikang Shi2018-10-311-2/+2
| | | | | | | | | | | | | | | Because get_signal_to_deliver() was renamed to get_signal() the comment should be fixed. Link: http://lkml.kernel.org/r/1539179128-45709-1-git-send-email-swkhack@gmail.com Signed-off-by: Weikang Shi <swkhack@gmail.com> Reported-by: Christian Brauner <christian@brauner.io> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* treewide: remove current_text_addrNick Desaulniers2018-10-3129-199/+2
| | | | | | | | | | | | | | | | | Prefer _THIS_IP_ defined in linux/kernel.h. Most definitions of current_text_addr were the same as _THIS_IP_, but a few archs had inline assembly instead. This patch removes the final call site of current_text_addr, making all of the definitions dead code. [akpm@linux-foundation.org: fix arch/csky/include/asm/processor.h] Link: http://lkml.kernel.org/r/20180911182413.180715-1-ndesaulniers@google.com Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'trace-v4.20' of ↵Linus Torvalds2018-10-303-0/+46
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "The biggest change here is the updates to kprobes Back in January I posted patches to create function based events. These were the events that you suggested I make to allow developers to easily create events in code where no trace event exists. After posting those changes for review, it was suggested that we implement this instead with kprobes. The problem with kprobes is that the interface is too complex and needs to be simplified. Masami Hiramatsu posted patches in March and I've been playing with them a bit. There's been a bit of clean up in the kprobe code that was inspired by the function based event patches, and a couple of enhancements to the kprobe event interface. - If the arch supports it (we added support for x86), you can place a kprobe event at the start of a function and use $arg1, $arg2, etc to reference the arguments of a function. (Before you needed to know what register or where on the stack the argument was). - The second is a way to see array of events. For example, if you reference a mac address, you can add: echo 'p:mac ip_rcv perm_addr=+574($arg2):x8[6]' > kprobe_events And this will produce: mac: (ip_rcv+0x0/0x140) perm_addr={0x52,0x54,0x0,0xc0,0x76,0xec} Other changes include - Exporting trace_dump_stack to modules - Have the stack tracer trace the entire stack (stop trying to remove tracing itself, as we keep removing too much). - Added support for SDT in uprobes" [ SDT - "Statically Defined Tracing" are userspace markers for tracing. Let's not use random TLA's in explanations unless they are fairly well-established as generic (at least for kernel people) - Linus ] * tag 'trace-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) tracing: Have stack tracer trace full stack tracing: Export trace_dump_stack to modules tracing: probeevent: Fix uninitialized used of offset in parse args tracing/kprobes: Allow kprobe-events to record module symbol tracing/kprobes: Check the probe on unloaded module correctly tracing/uprobes: Fix to return -EFAULT if copy_from_user failed tracing: probeevent: Add $argN for accessing function args x86: ptrace: Add function argument access API tracing: probeevent: Add array type support tracing: probeevent: Add symbol type tracing: probeevent: Unify fetch_insn processing common part tracing: probeevent: Append traceprobe_ for exported function tracing: probeevent: Return consumed bytes of dynamic area tracing: probeevent: Unify fetch type tables tracing: probeevent: Introduce new argument fetching code tracing: probeevent: Remove NOKPROBE_SYMBOL from print functions tracing: probeevent: Cleanup argument field definition tracing: probeevent: Cleanup print argument functions trace_uprobe: support reference counter in fd-based uprobe perf probe: Support SDT markers having reference counter (semaphore) ...
| * x86: ptrace: Add function argument access APIMasami Hiramatsu2018-10-103-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add regs_get_argument() which returns N th argument of the function call. Note that this chooses most probably assignment, in some case it can be incorrect (e.g. passing data structure or floating point etc.) This is expected to be called from kprobes or ftrace with regs where the top of stack is the return address. Link: http://lkml.kernel.org/r/152465885737.26224.2822487520472783854.stgit@devbox Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
* | Merge tag 'for-linus-4.20a-rc1-tag' of ↵Linus Torvalds2018-10-303-22/+17
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "Only several small fixes and cleanups this time" * tag 'for-linus-4.20a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: drop writing error messages to xenstore xen/pvh: don't try to unplug emulated devices add myself as reviewer for Xen support in Linux xen: remove redundant 'default n' from Kconfig xen/balloon: Support xend-based toolstack xen/pvh: increase early stack size xen: make xen_qlock_wait() nestable xen: fix race in xen_qlock_wait() xen/balloon: Grammar s/Is it/It is/ xen: Make XEN_BACKEND selectable by DomU
| * | xen/pvh: don't try to unplug emulated devicesJuergen Gross2018-10-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A Xen PVH guest has no associated qemu device model, so trying to unplug any emulated devices is making no sense at all. Bail out early from xen_unplug_emulated_devices() when running as PVH guest. This will avoid issuing the boot message: [ 0.000000] Xen Platform PCI: unrecognised magic value Cc: <stable@vger.kernel.org> # 4.11 Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>
| * | xen/pvh: increase early stack sizeRoger Pau Monne2018-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While booting on an AMD EPYC box the stack canary would detect stack overflows when using the current PVH early stack size (256). Switch to using the value defined by BOOT_STACK_SIZE, which prevents the stack overflow. Cc: <stable@vger.kernel.org> # 4.11 Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
| * | xen: make xen_qlock_wait() nestableJuergen Gross2018-10-241-14/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xen_qlock_wait() isn't safe for nested calls due to interrupts. A call of xen_qlock_kick() might be ignored in case a deeper nesting level was active right before the call of xen_poll_irq(): CPU 1: CPU 2: spin_lock(lock1) spin_lock(lock1) -> xen_qlock_wait() -> xen_clear_irq_pending() Interrupt happens spin_unlock(lock1) -> xen_qlock_kick(CPU 2) spin_lock_irqsave(lock2) spin_lock_irqsave(lock2) -> xen_qlock_wait() -> xen_clear_irq_pending() clears kick for lock1 -> xen_poll_irq() spin_unlock_irq_restore(lock2) -> xen_qlock_kick(CPU 2) wakes up spin_unlock_irq_restore(lock2) IRET resumes in xen_qlock_wait() -> xen_poll_irq() never wakes up The solution is to disable interrupts in xen_qlock_wait() and not to poll for the irq in case xen_qlock_wait() is called in nmi context. Cc: stable@vger.kernel.org Cc: Waiman.Long@hp.com Cc: peterz@infradead.org Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
| * | xen: fix race in xen_qlock_wait()Juergen Gross2018-10-241-10/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the following situation a vcpu waiting for a lock might not be woken up from xen_poll_irq(): CPU 1: CPU 2: CPU 3: takes a spinlock tries to get lock -> xen_qlock_wait() frees the lock -> xen_qlock_kick(cpu2) -> xen_clear_irq_pending() takes lock again tries to get lock -> *lock = _Q_SLOW_VAL -> *lock == _Q_SLOW_VAL ? -> xen_poll_irq() frees the lock -> xen_qlock_kick(cpu3) And cpu 2 will sleep forever. This can be avoided easily by modifying xen_qlock_wait() to call xen_poll_irq() only if the related irq was not pending and to call xen_clear_irq_pending() only if it was pending. Cc: stable@vger.kernel.org Cc: Waiman.Long@hp.com Cc: peterz@infradead.org Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
* | | Merge tag 'acpi-4.20-rc1-2' of ↵Linus Torvalds2018-10-302-28/+228
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "Rework the handling of the P-unit semaphore on Intel Baytrail and Cherrytrail systems to avoid race conditions and excessive overhead related to it (Hans de Goede)" * tag 'acpi-4.20-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / PMIC: xpower: Add depends on IOSF_MBI to Kconfig entry i2c: designware: Cleanup bus lock handling ACPI / PMIC: xpower: Block P-Unit I2C access during read-modify-write x86: baytrail/cherrytrail: Rework and move P-Unit PMIC bus semaphore code
| * | | x86: baytrail/cherrytrail: Rework and move P-Unit PMIC bus semaphore codeHans de Goede2018-10-252-28/+228
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some BYT/CHT systems the SoC's P-Unit shares the I2C bus with the kernel. The P-Unit has a semaphore for the PMIC bus which we can take to block it from accessing the shared bus while the kernel wants to access it. Currently we have the I2C-controller driver acquiring and releasing the semaphore around each I2C transfer. There are 2 problems with this: 1) PMIC accesses often come in the form of a read-modify-write on one of the PMIC registers, we currently release the P-Unit's PMIC bus semaphore between the read and the write. If the P-Unit modifies the register during this window?, then we end up overwriting the P-Unit's changes. I believe that this is mostly an academic problem, but I'm not sure. 2) To safely access the shared I2C bus, we need to do 3 things: a) Notify the GPU driver that we are starting a window in which it may not access the P-Unit, since the P-Unit seems to ignore the semaphore for explicit power-level requests made by the GPU driver b) Make a pm_qos request to force all CPU cores out of C6/C7 since entering C6/C7 while we hold the semaphore hangs the SoC c) Finally take the P-Unit's PMIC bus semaphore All 3 these steps together are somewhat expensive, so ideally if we have a bunch of i2c transfers grouped together we only do this once for the entire group. Taking the read-modify-write on a PMIC register as example then ideally we would only do all 3 steps once at the beginning and undo all 3 steps once at the end. For this we need to be able to take the semaphore from within e.g. the PMIC opregion driver, yet we do not want to remove the taking of the semaphore from the I2C-controller driver, as that is still necessary to protect many other code-paths leading to accessing the shared I2C bus. This means that we first have the PMIC driver acquire the semaphore and then have the I2C controller driver trying to acquire it again. To make this possible this commit does the following: 1) Move the semaphore code from being private to the I2C controller driver into the generic iosf_mbi code, which already has other code to deal with the shared bus so that it can be accessed outside of the I2C bus driver. 2) Rework the code so that it can be called multiple times nested, while still blocking I2C accesses while e.g. the GPU driver has indicated the P-Unit needs the bus through a iosf_mbi_punit_acquire() call. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | Merge tag 'armsoc-soc' of ↵Linus Torvalds2018-10-2933-554/+401
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "A couple of platforms change hands in the MAINTAINERS file: - Linus Walleij lists himself for the ARM Reference platforms: versatile, vexpress, integrator and realview. He has been the main contributor for these for a while, and makes it official now. - Vladimir Zapolskiy takes over the LPC18xx platform from Joachim Eastwood - Manivannan Sadhasivam becomes a secondary maintainer for the Actions Semi machines - Nicolas Ferre lists updates the MAINTAINER listing for the AT91 platform: Ludovic Desroches is now a co-maintainer for the platform, and several other people (Claudiu Beznea, Cristian Birsan, Eugen Hristev, Codrin Ciubotariu) take over individual device drivers. Thanks everyone for working on this, and welcome to the new maintainers! The "virt" platform on qemy or kvm can now be used in big-endian mode without additional tricks, thanks to Jason Donenfeld. Once again, we gain support for another NXP i.MX6 variant, this time it's the i.MX 6ULZ 32-bit single-core version. On arm64, we add support for two SoCs from Renesas: RZ/G2E (r8a774c0) and RZ/G2M (r8a774a1). These are described as microcontrollers on the manufacturer website, but appear to be rather powerful. The RZ/G2M is used on the reference board for the CIP Super Long Term Support (SLTS) Linux Kernels" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) MAINTAINERS: Assign myself as a maintainer of ARM/LPC18XX architecture arm64: exynos: Enable generic power domain support MAINTAINERS: remove non-exsiting email address of Baoyou MAINTAINERS: fix pattern in ARM/Synaptics berlin SoC section MAINTAINERS: Drop dt-bindings/genpd/k2g.h ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms arm64: actions: Enable PINCTRL in platforms Kconfig MAINTAINERS: Add entry for Actions Semi Owl SoCs DMA driver MAINTAINERS: Add entry for Actions Semiconductor Owl I2C driver MAINTAINERS: Update clock binding entry for Actions Semi Owl SoCs ARM: imx: add i.mx6ulz msl support ARM: Assume maintainership of ARM reference designs ARM: support big-endian for the virt architecture MAINTAINERS: sdhci: move the Microchip entry to proper location MAINTAINERS: move former ATMEL entries to proper MICROCHIP location MAINTAINERS: remove the / ATMEL string from MICROCHIP entries MAINTAINERS: iio: add co-maintainer to SAMA5D2-compatible ADC driver MAINTAINERS: pwm: add entry for Microchip pwm driver MAINTAINERS: dmaengine: add files to Microchip dma entry MAINTAINERS: USB: change maintainer for Microchip USBA gadget driver ...
| * \ \ \ Merge tag 'samsung-soc-4.20-2' of ↵Arnd Bergmann2018-10-116-109/+97
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/soc Samsung mach/soc changes for v4.20, second round 1. Disable SAMSUNG_PM_CHECK Kconfig feature incompatible with Exynos. * tag 'samsung-soc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms ARM: s3c24xx: Restore proper usage of pr_info/pr_cont ARM: s3c24xx: Correct SD card write protect detection on Mini2440 ARM: s3c24xx: Consistently use tab for indenting member assignments ARM: s3c24xx: formatting cleanup in mach-mini2440.c ARM: s3c24xx: Remove empty gta02_pmu children probe ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAM ARM: exynos: Store Exynos5420 register state in one variable Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platformsBartlomiej Zolnierkiewicz2018-10-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "S3C2410 PM Suspend Memory CRC" feature (controlled by SAMSUNG_PM_CHECK config option) is incompatible with highmem (uses phys_to_virt() instead of proper mapping) which is used by the majority of Exynos boards. The issue manifests itself in OOPS on affected boards, i.e. on Odroid-U3 I got the following one: Unable to handle kernel paging request at virtual address f0000000 pgd = 1c0f9bb4 [f0000000] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM [<c0458034>] (crc32_le) from [<c0121f8c>] (s3c_pm_makecheck+0x34/0x54) [<c0121f8c>] (s3c_pm_makecheck) from [<c0121efc>] (s3c_pm_run_res+0x74/0x8c) [<c0121efc>] (s3c_pm_run_res) from [<c0121ecc>] (s3c_pm_run_res+0x44/0x8c) [<c0121ecc>] (s3c_pm_run_res) from [<c01210b8>] (exynos_suspend_enter+0x64/0x148) [<c01210b8>] (exynos_suspend_enter) from [<c018893c>] (suspend_devices_and_enter+0x9ec/0xe74) [<c018893c>] (suspend_devices_and_enter) from [<c0189534>] (pm_suspend+0x770/0xc04) [<c0189534>] (pm_suspend) from [<c0186ce8>] (state_store+0x6c/0xcc) [<c0186ce8>] (state_store) from [<c09db434>] (kobj_attr_store+0x14/0x20) [<c09db434>] (kobj_attr_store) from [<c02fa63c>] (sysfs_kf_write+0x4c/0x50) [<c02fa63c>] (sysfs_kf_write) from [<c02f97a4>] (kernfs_fop_write+0xfc/0x1e4) [<c02f97a4>] (kernfs_fop_write) from [<c027b198>] (__vfs_write+0x2c/0x140) [<c027b198>] (__vfs_write) from [<c027b418>] (vfs_write+0xa4/0x160) [<c027b418>] (vfs_write) from [<c027b5d8>] (ksys_write+0x40/0x8c) [<c027b5d8>] (ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28) Add PLAT_S3C24XX, ARCH_S3C64XX and ARCH_S5PV210 dependencies to SAMSUNG_PM_CHECK config option to hide it on Exynos platforms. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
| * | | | | arm64: exynos: Enable generic power domain supportMarek Szyprowski2018-10-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generic power domains are needed to enable support for Exynos power domains. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | Merge tag 'renesas-arm64-soc-for-v4.20' of ↵Arnd Bergmann2018-10-041-24/+34
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Renesas ARM64 Based SoC SoC Updates for v4.20 * Add support for RZ/G2E (r8a774c0) and RZ/G2M (r8a774a1) SoCs * Enable Compare Match Timer (CMT) and Timer Unit (TMU) for Renesas SoCs * Remove no longer needed ARCH_SHMOBILE Kconfig symbol * tag 'renesas-arm64-soc-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: arm64: Add Renesas R8A774C0 support arm64: Add Renesas R8A774A1 support arm64: enable CMT/TMU support for Renesas SoC arm64: renesas: Remove the ARCH_SHMOBILE Kconfig symbol Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | arm64: Add Renesas R8A774C0 supportFabrizio Castro2018-09-111-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add configuration option for the RZ/G2E (R8A774C0) SoC. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | arm64: Add Renesas R8A774A1 supportBiju Das2018-09-111-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add configuration option for the RZ/G2M (R8A774A1) SoC. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Chris Paterson <chris.paterson2@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | arm64: enable CMT/TMU support for Renesas SoCSergei Shtylyov2018-09-061-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Renesas R-Car gen3 SoCs have both CMT and TMU timers, so we have to enable building them in Kconfig.platforms (as they don't normally have the prompts in Kconfig). Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | arm64: renesas: Remove the ARCH_SHMOBILE Kconfig symbolGeert Uytterhoeven2018-08-301-24/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Kconfig symbol for Renesas 64-bit ARM SoCs has always been ARCH_RENESAS, with ARCH_SHMOBILE being selected to reuse drivers shared with Renesas 32-bit ARM and/or Renesas SuperH SH-Mobile SoCs. Commit 9b5ba0df4ea4f940 ("ARM: shmobile: Introduce ARCH_RENESAS") started the conversion from ARCH_SHMOBILE to ARCH_RENESAS for Renesas 32-bit SoCs. Now all drivers for Renesas ARM SoCs have gained proper ARCH_RENESAS platform dependencies, there is no longer a need to select ARCH_SHMOBILE. With ARCH_SHMOBILE gone, move the ARCH_RENESAS section up, to restore alphabetical sort order. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| * | | | | | Merge tag 'mvebu-soc-4.20-1' of git://git.infradead.org/linux-mvebu into ↵Arnd Bergmann2018-10-021-6/+8
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | next/soc mvebu soc for 4.20 (part 1) - use dt_fixup to provide fallback for enable-method for Armada XP - document the marvell,prestera compatible string - update Thomas Petazzoni email in MAINTAINERS file * tag 'mvebu-soc-4.20-1' of git://git.infradead.org/linux-mvebu: dt-bindings: marvell,prestera: Add common compatible string MAINTAINERS: replace free-electrons.com by bootlin.com for Thomas Petazzoni ARM: mvebu: use dt_fixup to provide fallback for enable-method Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | ARM: mvebu: use dt_fixup to provide fallback for enable-methodChris Packham2018-09-241-6/+8
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to maintain backwards compatibility with device trees that don't define an enable method. At the same time we want the device tree to be able to specify an enable-method and have it stick. Previously by having smp assigned in the DT_MACHINE definition this would be picked up by setup_arch() and override whatever arm_dt_init_cpu_maps() had configured. Now we move the initial assignment of default smp_ops to a dt_fixup and let arm_dt_init_cpu_maps() override that if the device tree defines an enable-method. [olof@lixom.net: Wrap set_smp_ops() in CONFIG_SMP.] Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com> (on AX3) Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
| * | | | | | Merge tag 'imx-soc-4.20' of ↵Arnd Bergmann2018-10-025-2/+71
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc i.MX SoC update for 4.20: - Add ipg clock support in MMDC driver for registers access, so that we will be safe even if the clock is not turned on by firmware. - Register pm_power_off handler to provide power off support for iMX6 based boards with external PMIC. - Add platform code support for i.MX 6ULZ SoC which is a derivative of i.MX6ULL with some modules removed. * tag 'imx-soc-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx: add i.mx6ulz msl support ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set ARM: imx: add mmdc ipg clock operation for mmdc Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | ARM: imx: add i.mx6ulz msl supportAnson Huang2018-09-304-2/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX 6ULZ processor is a high-performance, ultra cost-efficient consumer Linux processor featuring an advanced implementation of a single Arm® Cortex®-A7 core, which operates at speeds up to 900 MHz. This patch adds basic MSL support for i.MX6ULZ, the i.MX6ULZ has same soc_id as i.MX6ULL, and SRC_SBMR2 bit[6] is to differentiate i.MX6ULZ from i.MX6ULL, 1'b1 means i.MX6ULZ and 1'b0 means i.MX6ULL. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | | | | | ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is setOleksij Rempel2018-09-121-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One of the Freescale recommended sequences for power off with external PMIC is the following: ... 3. SoC is programming PMIC for power off when standby is asserted. 4. In CCM STOP mode, Standby is asserted, PMIC gates SoC supplies. See: http://www.nxp.com/assets/documents/data/en/reference-manuals/IMX6DQRM.pdf page 5083 This patch implements step 4. of this sequence. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| | * | | | | | ARM: imx: add mmdc ipg clock operation for mmdcAnson Huang2018-09-101-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i.MX6 SoCs have MMDC ipg clock for registers access, to make sure MMDC registers access successfully, add optional clock enable for MMDC driver. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| * | | | | | | Merge tag 'actions-arm64-soc-for-4.20' of ↵Arnd Bergmann2018-10-021-0/+1
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/soc Actions Semi arm64 SoC for v4.20 This updates and extends the MAINTAINERS entry, adding Mani. It also selects PINCTRL in Kconfig. * tag 'actions-arm64-soc-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions: arm64: actions: Enable PINCTRL in platforms Kconfig MAINTAINERS: Add entry for Actions Semi Owl SoCs DMA driver MAINTAINERS: Add entry for Actions Semiconductor Owl I2C driver MAINTAINERS: Update clock binding entry for Actions Semi Owl SoCs MAINTAINERS: Add Actions Semi S900 clk entries MAINTAINERS: Add reviewer for ACTIONS platforms Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | | arm64: actions: Enable PINCTRL in platforms KconfigManivannan Sadhasivam2018-09-301-0/+1
| | | |/ / / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Select PINCTRL for Actions Semi SoCs. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * | | | | | | Merge tag 'renesas-arm-soc-for-v4.20' of ↵Arnd Bergmann2018-09-2815-99/+137
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Renesas ARM Based SoC Updates for v4.20 * Rework the PMIC IRQ line quirk to use DT rather than hard coded topology * Convert to SPDX identifiers * Convert to using %pOFn instead of device_node.name * Remove the no longer needed ARCH_SHMOBILE Kconfig symbol * RZ/G1N (r8a7744) SoC: Add basic SoC and debug-ll support * R-Car H1 (r8a7779) SoC: remove unused includes * tag 'renesas-arm-soc-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: Rework the PMIC IRQ line quirk ARM: debug-ll: Add support for r8a7744 ARM: shmobile: r8a7744: Basic SoC support ARM: shmobile: convert to SPDX identifiers ARM: shmobile: Convert to using %pOFn instead of device_node.name ARM: shmobile: Remove the ARCH_SHMOBILE Kconfig symbol ARM: shmobile: r8a7779: Remove unused includes Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | | ARM: shmobile: Rework the PMIC IRQ line quirkMarek Vasut2018-09-191-29/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than hard-coding the quirk topology, which stopped scaling, parse the information from DT. The code looks for all compatible PMICs -- da9063 and da9210 -- and checks if their IRQ line is tied to the same pin. If so, the code sends a matching sequence to the PMIC to deassert the IRQ. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (on Koelsch) Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: debug-ll: Add support for r8a7744Biju Das2018-09-191-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable low-level debugging support for RZ/G1N (R8A7744). RZ/G1N uses SCIF0 for the debug console. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: shmobile: r8a7744: Basic SoC supportBiju Das2018-09-172-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add minimal support for the RZ/G1N (R8A7744) SoC. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: shmobile: convert to SPDX identifiersKuninori Morimoto2018-09-1111-59/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: shmobile: Convert to using %pOFn instead of device_node.nameRob Herring2018-08-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: shmobile: Remove the ARCH_SHMOBILE Kconfig symbolGeert Uytterhoeven2018-08-301-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All drivers for Renesas ARM SoCs have gained proper ARCH_RENESAS platform dependencies. Hence finish the conversion from ARCH_SHMOBILE to ARCH_RENESAS for Renesas 32-bit ARM SoCs, as started by commit 9b5ba0df4ea4f940 ("ARM: shmobile: Introduce ARCH_RENESAS"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * | | | | | | ARM: shmobile: r8a7779: Remove unused includesGeert Uytterhoeven2018-08-271-2/+0
| | |/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Presumable unused since commit c99cd90d98a98aa1 ("ARM: shmobile: r8a7779: Remove legacy SoC code"). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| * | | | | | | Merge tag 'omap-for-v4.20/omap1-signed' of ↵Arnd Bergmann2018-09-283-88/+92
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc A series of omap1 gpio changes for ams-delta Janusz Krzysztofik has cleaned up ams-delta gpio usage along with generic gpio framework improvments. This series contains the omap1 specific clean-up for ams-delta modem and unused gpios. Note that this conflicts with the gpio-omap changes queued into an immutable gpio branch ib-omap for the gpio-omap.h header file. The merge resolution is to drop the IS_BUILTIN(CONFIG_GPIO_OMAP) section and keep the #endif tagged for __ASSEMBLER__. * tag 'omap-for-v4.20/omap1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP1: ams-delta: Don't request unused GPIOs ARM: OMAP1: ams-delta-fiq: Use <linux/platform_data/gpio-omap.h> ARM: OMAP1: ams-delta: register MODEM device earlier ARM: OMAP1: ams-delta: initialize latch2 pins to safe values ARM: OMAP1: ams-delta: assign MODEM IRQ from GPIO descriptor Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | | ARM: OMAP1: ams-delta: Don't request unused GPIOsJanusz Krzysztofik2018-09-201-39/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GPIOs with no kernel drivers can still be used from user space, don't request them from the board file. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | ARM: OMAP1: ams-delta-fiq: Use <linux/platform_data/gpio-omap.h>Janusz Krzysztofik2018-09-201-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of defining symbols already defined in linux/platform_data/gpio-omap.h, use that header file. Since we include the header into an assembler code, prevent C only bits from being read in. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | ARM: OMAP1: ams-delta: register MODEM device earlierJanusz Krzysztofik2018-09-201-4/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Amstrad Delta MODEM device used to be initialized at arch_initcall before it was once moved to late_initcall by commit f7519d8c8290 ("ARM: OMAP1: ams-delta: register latch dependent devices later"). The purpose of that change was to postpone initialization of devices which depended on latch2 pins until latch2 converted to GPIO device was ready. After recent fixes to GPIO handling, it was possible to moove registration of most of those device back to where they were before. The same can be safely done with the MODEM device as initialization of GPIO pins it depends on was moved to machine_init by preceding patch. Move registration of the MODEM device to arch_initcall_sync, not to arch_initcall, so it is never exposed to potential conflict in registration order hazard against OMAP serial ports. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | ARM: OMAP1: ams-delta: initialize latch2 pins to safe valuesJanusz Krzysztofik2018-09-202-24/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Latch2 pins control a number of on-board devices, namely LCD, NAND, MODEM and CODEC. Those pins used to be initialized with safe values from init_machine before that operation was: 1) moved to late_initcall in preparation for conversion of latch2 to GPIO device - see commit f7519d8c8290 ("ARM: OMAP1: ams-delta: register latch dependent devices later"), 2) replaced with non-atomic initialization performed by means of gpio_request_array() - see commit 937eb4bb0058 ("ARM: OMAP1: ams-delta: convert latches to basic_mmio_gpio"), 3) made completely asynchronous by delegation of GPIO request operations performed on subsets of pins to respective device drivers in subsequent commits. One visible negative result of that disintegration was corrupt keyboard data reported by serio driver, recently fixed by commit 41f8fee385a0 ("ARM: OMAP1: ams-delta: Hog "keybrd_dataout" GPIO pin"). Moreover, initialization of LATCH2_PIN_MODEM_CODEC still performed with ams_delta_latch2_write() wrapper from late_init() is now done on not requested GPIO pin. Reintroduce atomic initialization of latch2 pins at machine_init to prevent from random values potentially corrupting NAND data or maybe even destroing other hardware. Also take care of MODEM/CODEC related pins so MODEM device probe succeeds even if latch2 GPIO device or dependent regulator is not ready and CODEC can be reached over the MODEM even if audio driver doesn't take control over LATCH2_PIN_MODEM_CODEC. Once done, remove the no longer needed GPIO based implementation of ams_delta_latch_write() and its frontend macro. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> [tony@atomide.com: updated for the header location to remove dependency] Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | ARM: OMAP1: ams-delta: assign MODEM IRQ from GPIO descriptorJanusz Krzysztofik2018-09-201-12/+35
| | |/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't request MODEM IRQ GPIO by its global number in ams_delta_modem_init(). Instead, obtain its GPIO descriptor and assign related IRQ to the MODEM. Do that from omap_gpio_deps_init(), where the chip is already looked up. Then, in ams_delta_modem_init(), just check for the IRQ number having been already assigned. Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | | | | | Merge tag 'omap-for-v4.20/soc-signed' of ↵Arnd Bergmann2018-09-281-37/+51
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc SoC changes for omap variants These changes improve support for clkctrl clocks to deal with split memory ranges for clkctrl providers. And to use %pOFn instead of device_node.name. * tag 'omap-for-v4.20/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Convert to using %pOFn instead of device_node.name ARM: OMAP2+: hwmod_core: improve the support for clkctrl clocks Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | | ARM: OMAP2+: Convert to using %pOFn instead of device_node.nameRob Herring2018-09-071-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring <robh@kernel.org> [tony@atomide.com: updated against clkctrl and rt_idx changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | ARM: OMAP2+: hwmod_core: improve the support for clkctrl clocksTero Kristo2018-09-071-29/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for split memory ranges for clkctrl providers. This is necessary to support the coming clockdomain based split of clkctrl provider ranges, instead of the current CM instance based one. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * | | | | | | Merge commit '1dbcb97c656eed1a244c960b8b3a469c3d20ce7b' into omap-for-v4.20/socTony Lindgren2018-09-071-1/+38
| | |\ \ \ \ \ \ \ | | | |/ / / / / / | | |/| | | | | |
| * | | | | | | | ARM: support big-endian for the virt architectureJason A. Donenfeld2018-09-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This architecture, used for running in QEMU, runs just fine when compiled in big-endian mode. So enable it. This is enabled in exactly the same way that it is for other platforms (such as vexpress) that also support big-endian mode in QEMU successfully. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * | | | | | | | Merge tag 'zynq-soc-for-v4.20' of https://github.com/Xilinx/linux-xlnx into ↵Arnd Bergmann2018-09-261-1/+1
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | next/soc ARM: Xilinx Zynq SoC patches for v4.20 - Convert to using %pOFn instead of device_node.name in slcr driver * tag 'zynq-soc-for-v4.20' of https://github.com/Xilinx/linux-xlnx: ARM: zynq: Convert to using %pOFn instead of device_node.name Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | | | | | | | ARM: zynq: Convert to using %pOFn instead of device_node.nameRob Herring2018-09-051-1/+1
| | |/ / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Michal Simek <michal.simek@xilinx.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 06:08:04 +0000