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* ARM: EXYNOS: Remove remaining dead code after non-DT support removalArnd Bergmann2013-06-18
| | | | | | | | | | This patch removes remaining small bits of unused code that was left after removing non-DT support. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy L2X0 initializationArnd Bergmann2013-06-18
| | | | | | | | | | | Since Exynos is now supporting only DT-based boot, the old L2X0 initialization code is not needed anymore, so exynos4_l2x0_cache_init() can be greatly simplified. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Use exynos_init_io() as map_io callbackArnd Bergmann2013-06-18
| | | | | | | | | | | Since there is no board specific mapping needed on Exynos, exynos_init_io() can be simplified and used as map_io callback for both Exynos4 and Exynos5. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove custom init_irq callbacksArnd Bergmann2013-06-18
| | | | | | | | | | | Since both exynos4_init_irq() and exynos5_init_irq() are just calling irqchip_init(), there is no need for them to exist any more, since this is the default that is called when init_irq callback is not specified. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove mach/regs-usb-phy.h headerTomasz Figa2013-06-18
| | | | | | | | | | This patch removes mach/regs-usb-phy.h header, which is not used anywhere in the kernel. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* thermal: exynos: Support both EXYNOS4X12 SoCsTomasz Figa2013-06-18
| | | | | | | | | | | | EXYNOS4212 and EXYNOS4412 have the same thermal block, so there is no reason to include support only for EXYNOS4412 in this driver. Cc: linux-pm@vger.kernel.org Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove unused base addresses from mach/map.h headerTomasz Figa2013-06-18
| | | | | | | | | | | This patch removes all the unused base addresses from mach/map.h header, leaving only addresses of IPs that currently use static IO mapping or need the address hardcoded, like low level debug UART. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove mach/irqs.h headerTomasz Figa2013-06-18
| | | | | | | | | | Since Exynos now uses CONFIG_SPARSE_IRQ and all remaining users of this header has been fixed, we can safely remove it. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Select SPARSE_IRQ for ExynosTomasz Figa2013-06-18
| | | | | | | | | | | | | | | | This patch adds selection of CONFIG_SPARSE_IRQ for ARCH_EXYNOS, since it is required by multiplatform and allows to remove the legacy mach/irqs.h header. To make this possible, a dummy IRQ_EINT_BIT macro is added to pm-core.h header to allow plat-samsung/pm.c compile. This macro is irrelevant for Exynos and will be removed after reworking Samsung pm code for multiplatform compatibility. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Make legacy MFC support code depend on SAMSUNG_ATAGSTomasz Figa2013-06-18
| | | | | | | | | | | | This allows to bypass compilation of static platform device and resource definitions that require interrupts and base addresses to be defined statically. Cc: Jeongtae Park <jtp.park@samsung.com> Cc: Kamil Debski <k.debski@samsung.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove mach/regs-gpio.h headerTomasz Figa2013-06-18
| | | | | | | | | Contents of this header are not used any more and can be safely removed. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove mach/gpio.hTomasz Figa2013-06-18
| | | | | | | | | | This patch removes mach/gpio.h header that is not required any more on Exynos. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove setup-i2c0.cTomasz Figa2013-06-18
| | | | | | | | | | Now since SAMSUNG_ATAGS is no longer selected for ARCH_EXYNOS, we can safely remove the remaining setup code. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Do not select legacy Kconfig symbols any moreTomasz Figa2013-06-18
| | | | | | | | | | This patch removes selection of several legacy Kconfig symbols from ARCH_EXYNOS to bypass compilation of code used only for ATAGS based boot. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Include most of mach/ headers conditionallyTomasz Figa2013-06-18
| | | | | | | | | | | | Since it is illegal to include mach/ headers from source files outside of respective mach-* directory and DT-only Samsung platforms might not have all of them anyway, this patches makes inclusion of them conditional, based on CONFIG_SAMSUNG_ATAGS. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Decouple ARCH_EXYNOS from PLAT_S5PTomasz Figa2013-06-18
| | | | | | | | | | After removing support for ATAGS based boot on Exynos, there is not much that can be shared between Exynos and other S5P platforms. This patch makes Exynos a standalone Samsung platform, not using PLAT_S5P. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* USB: Check for ARCH_EXYNOS separatelyTomasz Figa2013-06-18
| | | | | | | | | ARCH_EXYNOS is going to be excluded from PLAT_S5P, so it must be checked separately in Exynos-related Kconfig entries. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* platform: Check for ARCH_EXYNOS separatelyTomasz Figa2013-06-18
| | | | | | | | | | | | | | | ARCH_EXYNOS is going to be excluded from PLAT_S5P, so it must be checked separately in Exynos-related Kconfig entries. Cc: linux-media@vger.kernel.org Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Kamil Debski <k.debski@samsung.com> Cc: Tomasz Stanislawski <t.stanislaws@samsung.com> Cc: Jeongtae Park <jtp.park@samsung.com> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Compile legacy IRQ and GPIO PM code only with ATAGS supportTomasz Figa2013-06-18
| | | | | | | | | | This patch adds new Kconfig symbols, SAMSUNG_PM_GPIO and S5P_IRQ_PM that get enabled when GPIO_SAMSUNG, PM and S5P_PM are enabled, but only if SAMSUNG_ATAGS is selected. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Provide compatibility stubs for PM code in pm-core.h headerTomasz Figa2013-06-18
| | | | | | | | | | This patch adds several compatibility definitions that are not relevant for Exynos, but are required by Samsung PM core. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Introduce GPIO_SAMSUNG Kconfig entryTomasz Figa2013-06-18
| | | | | | | | | | | | This patch adds Kconfig entry that selects whether legacy Samsung GPIO driver should be built or not. For platforms that support only DT based boot, the new pinctrl driver is used and so the old one is not needed. Cc: Grant Likely <grant.likely@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy power domain registration codeTomasz Figa2013-06-14
| | | | | | | | | | | | | This patch removes static definitions of power domains and code responsible for registering them and adding devices to them, since only DT based boot is now supported on Exynos. Cc: linux-pm@vger.kernel.org Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove check for device tree presenceTomasz Figa2013-06-14
| | | | | | | | | | This patch makes the firmware setup code assume presence of DT, since it is now the only way of booting supported for Exynos. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy mapping of chip ID blockTomasz Figa2013-06-14
| | | | | | | | | | This patch removes static mapping of chip ID block that was used when booting with ATAGS, which is not supported on Exynos any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove platform device initializationTomasz Figa2013-06-14
| | | | | | | | | | | This patch removes legacy platform device initialization code that was used to set names and other parameters of static platform devices when booting with ATAGS, which is not supported on Exynos any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy timer initialization codeTomasz Figa2013-06-14
| | | | | | | | | | This patch removes legacy timer initialization code that was used to set up system timers when booting with ATAGS, which is not supported on Exynos any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy interrupt initialization codeTomasz Figa2013-06-14
| | | | | | | | | | This patch removes legacy IRQ initialization code that was used to set up interrupt handling when booting with ATAGS, which is not supported any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy dev- and setup- filesTomasz Figa2013-06-14
| | | | | | | | | | | | | | This patch removes now unused files containing old device and GPIO setup code that was needed for ATAGS based boot, which is not supported on Exynos any more. The only exception is setup-i2c0.c that will be removed later, since it has dependencies in plat-samsung/ directory. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy UART initialization codeTomasz Figa2013-06-14
| | | | | | | | | | | This patch removes legacy UART initialization code that was used to set up UART platform devices when booting with ATAGS, which is not supported on Exynos any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy EINT initialization codeTomasz Figa2013-06-14
| | | | | | | | | | This patch removes legacy EINT initialization code that was used to handle external interrupts when booting with ATAGS, which is not supported any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove legacy PMU initialization codeTomasz Figa2013-06-14
| | | | | | | | | | This patch removes legacy PMU initialization code that was used to set up PMU when booting with ATAGS, which is not supported any more. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: SAMSUNG: Introduce SAMSUNG_ATAGS Kconfig entryTomasz Figa2013-06-14
| | | | | | | | | | | | | | This patch adds a Kconfig entry that enables compilation of legacy support code required for Samsung platforms that require ATAGS based boot. This allows to bypass compilation of this code when platforms without ATAGS support are selected. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Make ARCH_EXYNOS select USE_OFTomasz Figa2013-06-14
| | | | | | | | | | | Since EXYNOS is now DT-only, it always requires USE_OF option to be selected. This patch moves USE_OF selection from entries of DT board files to ARCH_EXYNOS. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: Remove unused board filesTomasz Figa2013-06-14
| | | | | | | | | | | Since commit 383ffda ARM: EXYNOS: no more support non-DT for EXYNOS SoCs all non-DT Exynos board files are not used anymore. This patch removes them. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* ARM: EXYNOS: no more support non-DT for EXYNOS SoCsKukjin Kim2013-06-10
| | | | | | | | | | | | | | As we discussed in mailing list, non-DT for EXYNOS SoCs will not be supported from v3.11. This patch removes regarding files for non-DT including board files and defconfig. Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Tomasz Figa <t.figa@samsung.com> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* Linux 3.10-rc5Linus Torvalds2013-06-08
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* hpfs: fix warnings when the filesystem fills upMikulas Patocka2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes warnings due to missing lock on write error path. WARNING: at fs/hpfs/hpfs_fn.h:353 hpfs_truncate+0x75/0x80 [hpfs]() Hardware name: empty Pid: 26563, comm: dd Tainted: P O 3.9.4 #12 Call Trace: hpfs_truncate+0x75/0x80 [hpfs] hpfs_write_begin+0x84/0x90 [hpfs] _hpfs_bmap+0x10/0x10 [hpfs] generic_file_buffered_write+0x121/0x2c0 __generic_file_aio_write+0x1c7/0x3f0 generic_file_aio_write+0x7c/0x100 do_sync_write+0x98/0xd0 hpfs_file_write+0xd/0x50 [hpfs] vfs_write+0xa2/0x160 sys_write+0x51/0xa0 page_fault+0x22/0x30 system_call_fastpath+0x1a/0x1f Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Cc: stable@kernel.org # 2.6.39+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds2013-06-08
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: - Trivial: unused variable removal - Posix-timers: Add the clock ID to the new proc interface to make it useful. The interface is new and should be functional when we reach the final 3.10 release. - Cure a false positive warning in the tick code introduced by the overhaul in 3.10 - Fix for a persistent clock detection regression introduced in this cycle * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Correct run-time detection of persistent_clock. ntp: Remove unused variable flags in __hardpps posix-timers: Show clock ID in proc file tick: Cure broadcast false positive pending bit warning
| * Merge branch 'fortglx/3.10/time' of ↵Thomas Gleixner2013-05-29
| |\ | | | | | | | | | git://git.linaro.org/people/jstultz/linux into timers/urgent
| | * timekeeping: Correct run-time detection of persistent_clock.Zoran Markovic2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 31ade30692dc9680bfc95700d794818fa3f754ac, timekeeping_init() checks for presence of persistent clock by attempting to read a non-zero time value. This is an issue on platforms where persistent_clock (instead is implemented as a free-running counter (instead of an RTC) starting from zero on each boot and running during suspend. Examples are some ARM platforms (e.g. PandaBoard). An attempt to read such a clock during timekeeping_init() may return zero value and falsely declare persistent clock as missing. Additionally, in the above case suspend times may be accounted twice (once from timekeeping_resume() and once from rtc_resume()), resulting in a gradual drift of system time. This patch does a run-time correction of the issue by doing the same check during timekeeping_suspend(). A better long-term solution would have to return error when trying to read non-existing clock and zero when trying to read an uninitialized clock, but that would require changing all persistent_clock implementations. This patch addresses the immediate breakage, for now. Cc: John Stultz <john.stultz@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Feng Tang <feng.tang@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org> [jstultz: Tweaked commit message and subject] Signed-off-by: John Stultz <john.stultz@linaro.org>
| | * ntp: Remove unused variable flags in __hardppsGeert Uytterhoeven2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kernel/time/ntp.c: In function ‘__hardpps’: kernel/time/ntp.c:877: warning: unused variable ‘flags’ commit a076b2146fabb0894cae5e0189a8ba3f1502d737 ("ntp: Remove ntp_lock, using the timekeeping locks to protect ntp state") removed its users, but not the actual variable. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
| * | posix-timers: Show clock ID in proc filePavel Tikhomirov2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Expand information about posix-timers in /proc/<pid>/timers by adding info about clock, with which the timer was created. I.e. in the forth line of timer info after "notify:" line go "ClockID: <clock_id>". Signed-off-by: Pavel Tikhomirov <snorcht@gmail.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Matthew Helsley <matt.helsley@gmail.com> Cc: Pavel Emelyanov <xemul@parallels.com> Link: http://lkml.kernel.org/r/1368742323-46949-2-git-send-email-snorcht@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | tick: Cure broadcast false positive pending bit warningThomas Gleixner2013-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 26517f3e (tick: Avoid programming the local cpu timer if broadcast pending) added a warning if the cpu enters broadcast mode again while the pending bit is still set. Meelis reported that the warning triggers. There are two corner cases which have been not considered: 1) cpuidle calls clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER) twice. That can result in the following scenario CPU0 CPU1 cpuidle_idle_call() clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER) set cpu in tick_broadcast_oneshot_mask broadcast interrupt event expired for cpu1 set pending bit acpi_idle_enter_simple() clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER) WARN_ON(pending bit) Move the WARN_ON into the section where we enter broadcast mode so it wont provide false positives on the second call. 2) safe_halt() enables interrupts, so a broadcast interrupt can be delivered befor the broadcast mode is disabled. That sets the pending bit for the CPU which receives the broadcast interrupt. Though the interrupt is delivered right away from the broadcast handler and leaves the pending bit stale. Clear the pending bit for the current cpu in the broadcast handler. Reported-and-tested-by: Meelis Roos <mroos@linux.ee> Cc: Len Brown <lenb@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Rafael J. Wysocki <rjw@sisk.pl> Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1305271841130.4220@ionos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-06-08
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull irqdomain bug fixes from Grant Likely: "This branch contains a set of straight forward bug fixes to the irqdomain code and to a couple of drivers that make use of it." * tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux: irqchip: Return -EPERM for reserved IRQs irqdomain: document the simple domain first_irq kernel/irq/irqdomain.c: before use 'irq_data', need check it whether valid. irqdomain: export irq_domain_add_simple
| * | | irqchip: Return -EPERM for reserved IRQsGrant Likely2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irqdomain core will report a log message for any attempted map call that fails unless the error code is -EPERM. This patch changes the Versatile irq controller drivers to use -EPERM because it is normal for a subset of the IRQ inputs to be marked as reserved on the various Versatile platforms. Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * | | irqdomain: document the simple domain first_irqLinus Walleij2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The first_irq needs to be zero to get a linear domain and that comes with special semantics. We want to simplify this going forward but some documentation never hurts. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * | | kernel/irq/irqdomain.c: before use 'irq_data', need check it whether valid.Chen Gang2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since irq_data may be NULL, if so, we WARN_ON(), and continue, 'hwirq' which related with 'irq_data' has to initialize later, or it will cause issue. Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
| * | | irqdomain: export irq_domain_add_simpleArnd Bergmann2013-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All other irq_domain_add_* functions are exported already, and apparently this one got left out by mistake, which causes build errors for ARM allmodconfig kernels: ERROR: "irq_domain_add_simple" [drivers/gpio/gpio-rcar.ko] undefined! ERROR: "irq_domain_add_simple" [drivers/gpio/gpio-em.ko] undefined! Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Grant Likely <grant.likely@linaro.org>
* | | | Merge tag 'fixes-for-linus' of ↵Linus Torvalds2013-06-08
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another week, another batch of fixes for arm-soc platforms. Nothing controversial here, a handful of fixes for regressions and/or serious problems across several of the platforms. Things are slowing down nicely on fix rates for 3.10" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: exynos: add debug_ll_io_init() call in exynos_init_io() ARM: EXYNOS: uncompress - print debug messages if DEBUG_LL is defined ARM: shmobile: sh73a0: Update CMT clockevent rating to 80 sh-pfc: r8a7779: Don't group USB OVC and PENC pins ARM: mxs: icoll: Fix interrupts gpio bank 0 ARM: imx: clk-imx6q: AXI clock select index is incorrect ARM: bcm2835: override the HW UART periphid ARM: mvebu: Fix bug in coherency fabric low level init function ARM: Kirkwood: TS219: Fix crash by double PCIe instantiation ARM: ux500: Provide supplies for AUX1, AUX2 and AUX3 ARM: ux500: Only configure wake-up reasons on ux500 based platforms ARM: dts: imx: fix clocks for cspi ARM i.MX6q: fix for ldb_di_sels
| * \ \ \ Merge tag 'mxs-fixes-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson2013-06-07
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into fixes From Shawn Guo, mxs fixes for 3.10: - Since the time we move to MULTI_IRQ_HANDLER, the 0x7f polling for no interrupt in icoll_handle_irq() becomes insane, because 0x7f is an valid interrupt number, the irq of gpio bank 0. That unnecessary polling results in the driver not detecting when irq 0x7f is active which makes the machine effectively dead lock. The fix removes the interrupt poll loop and allows usage of gpio0 interrupt without an infinite loop. * tag 'mxs-fixes-3.10' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: mxs: icoll: Fix interrupts gpio bank 0 Signed-off-by: Olof Johansson <olof@lixom.net>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-02 17:24:19 -0400