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* Input: cyttsp4 - kill 'defined but not used' compiler warningsGeert Uytterhoeven2013-08-29
| | | | | | | | | | | | | | If both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME are unset: drivers/input/touchscreen/cyttsp4_core.c:1556: warning: ‘cyttsp4_core_sleep’ defined but not used drivers/input/touchscreen/cyttsp4_core.c:1634: warning: ‘cyttsp4_core_wake’ defined but not used Move cyttsp4_core_sleep(), cyttsp4_core_wake(), and cyttsp4_core_wake_() (which is called from cyttsp4_core_wake() only) inside the existing section protected by #if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME) Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: add driver for slidebar on Lenovo IdeaPad laptopsAndrey Moiseev2013-08-26
| | | | | | | | | | | | | | | | | | | | | | This driver adds support for slidebars found on some Lenovo IdeaPad laptops (the slidebars work with SlideNav/Desktop Navigator under Windows). Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16004 Registers 'IdeaPad Slidebar' input device and /sys/devices/platform/ideapad_slidebar/slidebar_mode for switching slidebar's modes. Now works on: IdeaPad Y550, Y550P. May work on (testing and adding new models is needed): Ideapad Y560, Y460, Y450, Y650, and, probably, some others. Signed-off-by: Andrey Moiseev <o2g.org.ru@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - set up irq type from DTIllia Smyrnov2013-08-26
| | | | | | | | | OMAP4 is DT only, so read the keypad IRQ type from DT instead hard-coding it in the driver. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - enable wakeup capability for keypad.Illia Smyrnov2013-08-26
| | | | | | | | Enable/disable IRQ wake in suspend/resume handlers to make the keypad wakeup capable. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - clear interrupts on openIllia Smyrnov2013-08-26
| | | | | | | | | | | | According to TRM, the recommended way for keyboard controller initialization is clear the interrupt-status register, then set up certain keyboard events for generating an interrupt request and set up expected source of wake-up event that generates a wake-up request. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - convert to threaded IRQIllia Smyrnov2013-08-26
| | | | | | | | Convert to use threaded IRQ. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: omap-keypad - use bitfiled instead of hardcoded valuesIllia Smyrnov2013-08-26
| | | | | | | | | Use bitfiled instead of hardcoded values to set KBD_CTRL, use BIT macro, remove unused defines. Signed-off-by: Illia Smyrnov <illia.smyrnov@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: cyttsp4 - remove useless NULL test from cyttsp4_watchdog_timer()Wei Yongjun2013-08-26
| | | | | | | | Remove useless NULL test from cyttsp4_watchdog_timer(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Ferruh Yigit <fery@cypress.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wacom - fix error return code in wacom_probe()Wei Yongjun2013-08-24
| | | | | | | | Fix to return a negative error code from the urb submit 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: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: as5011 - fix error return code in as5011_probe()Wei Yongjun2013-08-24
| | | | | | | | Fix to return a negative error code from the 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: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: keyboard, serio - simplify use of devm_ioremap_resourceJulia Lawall2013-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: tegra-kbc - simplify use of devm_ioremap_resourceJulia Lawall2013-08-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unneeded error handling on the result of a call to platform_get_resource when the value is passed to devm_ioremap_resource. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression pdev,res,n,e,e1; expression ret != 0; identifier l; @@ - res = platform_get_resource(pdev, IORESOURCE_MEM, n); ... when != res - if (res == NULL) { ... \(goto l;\|return ret;\) } ... when != res + res = platform_get_resource(pdev, IORESOURCE_MEM, n); e = devm_ioremap_resource(e1, res); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: htcpen - fix incorrect placement of __initdataSachin Kamat2013-08-15
| | | | | | | | | __initdata should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Pau Oliva Fora <pau@eslack.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: qt1070 - add power management opsBo Shen2013-08-13
| | | | | | | Add power management ops for qt1070, it may be a wakeup source. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wistron_btns - add MODULE_DEVICE_TABLEStefan Lippers-Hollmann2013-08-13
| | | | | | | | | | | | | This allows the wistron_btns module to be autoloaded on boot, its functionality is required to support the hardware rfkill switches on most of the supported notebooks, in order to unblock the hard blocked rfkill state for wireless and bluetooth devices. Tested on a Medion MD96500: alias: dmi*:svn*MEDIONPC*:pn*WIM2040*: Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wistron_btns - mark the Medion MD96500 keymap as testedStefan Lippers-Hollmann2013-08-13
| | | | | | | | | DMI: MEDIONPC WIM 2040/WIM 2040, BIOS R01-A0O 11/04/2005 wistron_btns: BIOS signature found at c00f6b00, entry point 000FDD50 input: Wistron laptop buttons as /devices/platform/wistron-bios/input/input5 Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wistron_btns - drop bogus MODULE_VERSION macroStefan Lippers-Hollmann2013-08-13
| | | | | | | | | | MODULE_VERSION is pointless for an in-kernel module and git log confirms that it has never been actually maintained as well (bumped a single time, despite quite major feature additions later on, which haven't been reflected in MODULE_VERSION). Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: synaptics - fix incorrect placement of __initconstSachin Kamat2013-08-13
| | | | | | | | __initconst should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: lifebook - fix incorrect placement of __initconstSachin Kamat2013-08-13
| | | | | | | | __initconst should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wistron_btns - fix incorrect placement of __initconstSachin Kamat2013-08-13
| | | | | | | | __initconst should be placed between the variable name and equal sign for the variable to be placed in the intended section. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: joysticks - use dev_get_platdata()Jingoo Han2013-08-13
| | | | | | | | Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: pwm-beeper - add CONFIG_PM_SLEEP to suspend/resumeJingoo Han2013-08-13
| | | | | | | | | | | | | Add CONFIG_PM_SLEEP to suspend/resume functions to fix the build warnings when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/input/misc/pwm-beeper.c:147:12: warning: 'pwm_beeper_suspend' defined but not used [-Wunused-function] drivers/input/misc/pwm-beeper.c:157:12: warning: 'pwm_beeper_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: eeti_ts - add CONFIG_PM_SLEEP to suspend/resumeJingoo Han2013-08-13
| | | | | | | | | | | | | Add CONFIG_PM_SLEEP to suspend/resume functions to fix the build warnings when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/input/touchscreen/eeti_ts.c:268:12: warning: 'eeti_ts_suspend' defined but not used [-Wunused-function] drivers/input/touchscreen/eeti_ts.c:287:12: warning: 'eeti_ts_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: cy8ctmg110_ts - add CONFIG_PM_SLEEP to suspend/resumeJingoo Han2013-08-13
| | | | | | | | | | | | | Add CONFIG_PM_SLEEP to suspend/resume functions to fix the build warnings when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/input/touchscreen/cy8ctmg110_ts.c:295:12: warning: 'cy8ctmg110_suspend' defined but not used [-Wunused-function] drivers/input/touchscreen/cy8ctmg110_ts.c:309:12: warning: 'cy8ctmg110_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: max7359 - add CONFIG_PM_SLEEP to suspend/resumeJingoo Han2013-08-13
| | | | | | | | | | | | | Add CONFIG_PM_SLEEP to suspend/resume functions to fix the build warnings when CONFIG_PM_SLEEP is not selected. This is because sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used when the CONFIG_PM_SLEEP is enabled. drivers/input/keyboard/max7359_keypad.c:275:12: warning: 'max7359_suspend' defined but not used [-Wunused-function] drivers/input/keyboard/max7359_keypad.c:287:12: warning: 'max7359_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: sysrq - DT binding for key sequenceMathieu J. Poirier2013-08-13
| | | | | | | | | | | | | Adding a simple device tree binding for the specification of key sequences. Definition of the keys found in the sequence are located in 'include/uapi/linux/input.h'. For the sysrq driver, holding the sequence of keys down for a specific amount of time will reset the system. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: wacom - integrate resolution calculationPing Cheng2013-08-13
| | | | | | | Reviewed-by: Jason Gerecke <killertofu@gmail.com> Tested-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: twl6040-vibra - remove support for legacy (pdata) modePeter Ujfalusi2013-08-13
| | | | | | | | TWL6040 is used only with OMAP4/5 SoCs and they can only boot in in DT mode. The support for pdata/legacy boot can be removed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: nspire-keypad - replace magic offset with defineDaniel Tang2013-07-07
| | | | | Signed-off-by: Daniel Tang <dt.tangr@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: elantech - fix for newer hardware versions (v7)Matteo Delfino2013-07-07
| | | | | | | | | | | | | | | | | | | | | | * Fix version recognition in elantech_set_properties The new hardware reports itself as v7 but the packets' structure is unaltered. * Fix packet type recognition in elantech_packet_check_v4 The bitmask used for v6 is too wide, only the last three bits of the third byte in a packet (packet[3] & 0x03) are actually used to distinguish between packet types. Starting from v7, additional information (to be interpreted) is stored in the remaining bits (packets[3] & 0x1c). In addition, the value stored in (packet[0] & 0x0c) is no longer a constant but contains additional information yet to be deciphered. This change should be backwards compatible with v6 hardware. Additional-author: Giovanni Frigione <gio.frigione@gmail.com> Signed-off-by: Matteo Delfino <kendatsuba@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ads7846 - add device tree bindingsDaniel Mack2013-07-02
| | | | | Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: ads7846 - make sure we do not change platform dataDmitry Torokhov2013-07-02
| | | | | | | Let's declare platform data a const pointer so that we don't accitentally change it. Also fetch it with dev_get_platdata(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Input: cyttsp4 - SPI driver for Cypress TMA4XX touchscreen devicesFerruh Yigit2013-07-01
| | | | | | | | | | | | | 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 Yigit2013-07-01
| | | | | | | | | | | | | 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 Yigit2013-07-01
| | | | | | | | | | | | | | | | 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 Yigit2013-07-01
| | | | | | | | | | | | | | | | 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 Drake2013-06-30
| | | | | | | | | | | | | | | | 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 Yongjun2013-06-28
| | | | | | | | | 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 Torokhov2013-06-28
|\ | | | | | | Pull in changes from Henrik: "a trivial MT documentation fix".
| * Input: MT - Specify that ABS_MT_SLOT must have a minimum of 0Peter Hutterer2013-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * Linux 3.10-rc5Linus Torvalds2013-06-08
| |
| * 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>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-28 03:54:54 -0400