aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/input/misc/pwm-beeper.c
AgeCommit message (Collapse)Author
2017-03-07Input: pwm-beeper - support customized freq for SND_BELLGuan Ben
Extend the pwm-beeper driver to support customized frequency for SND_BELL from device properties. Signed-off-by: Guan Ben <ben.guan@cn.bosch.com> Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - switch to using "atomic" PWM APIDmitry Torokhov
The "atomic" API allows us to configure PWM period and duty cycle and enable it in one call. Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Tested-by: David Lechner <david@lechnology.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - add optional amplifier regulatorDavid Lechner
This adds an optional regulator to the pwm-beeper device. This regulator acts as an amplifier. The amplifier is only enabled while beeping in order to reduce power consumption. Tested on LEGO MINDSTORMS EV3, which has a speaker connected to PWM through an amplifier. Signed-off-by: David Lechner <david@lechnology.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - suppress error message on probe deferDavid Lechner
This suppress printing an error message when pwm_get returns -EPROBE_DEFER. Otherwise you get a bunch of noise in the kernel log. Signed-off-by: David Lechner <david@lechnology.com> Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - fix race when suspendingDmitry Torokhov
Usually userspace sends SND_BELL and SND_TONE events, and by the time pwm_beeper_suspend() runs userpsace is already frozen, but theoretically in-kernel users may send these events too, and that may cause pwm_beeper_event() scheduling another work after we canceled it. Let's introduce a "suspended" flag and check it in pwm_beeper_event() to avoid this race. Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Tested-by: David Lechner <david@lechnology.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - use input_set_capability()Dmitry Torokhov
Instead of manipulating capability bits directly, let's use input_set_capability() API. Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Tested-by: David Lechner <david@lechnology.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - switch to using managed resourcesDmitry Torokhov
Use of managed resources (devm) simplifies error handling and tear down of the driver. Reviewed-by: Thierry Reding <thierry.reding@gmail.com> Tested-by: David Lechner <david@lechnology.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-22Input: pwm-beeper - remove calls to legacy pwm_request APIDmitry Torokhov
There are no more users of pwm-beeper driver in mainline relying on this legacy API, so let's remove it and simplify the driver code. Acked-by: Thierry Reding <thierry.reding@gmail.com> Tested-by: David Lechner <david@lechnology.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-05-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull more input subsystem updates from Dmitry Torokhov: "Just a few more driver fixes; new drivers will be coming in the next merge window" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: pwm-beeper - fix - scheduling while atomic Input: xpad - xbox one elite controller support Input: xpad - add more third-party controllers Input: xpad - prevent spurious input from wired Xbox 360 controllers Input: xpad - move pending clear to the correct location Input: uinput - handle compat ioctl for UI_SET_PHYS
2016-05-27Input: pwm-beeper - fix - scheduling while atomicManfred Schlaegl
Pwm config may sleep so defer it using a worker. On a Freescale i.MX53 based board we ran into "BUG: scheduling while atomic" because input_inject_event locks interrupts, but imx_pwm_config_v2 sleeps. Tested on Freescale i.MX53 SoC with 4.6.0. Signed-off-by: Manfred Schlaegl <manfred.schlaegl@gmx.at> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-05-17input: misc: pwm-beeper: Explicitly apply PWM config extracted from pwm_argsBoris Brezillon
Call pwm_apply_args() just after requesting the PWM device so that the polarity and period are initialized according to the information provided in pwm_args. This is an intermediate state, and pwm_apply_args() should be dropped as soon as the atomic PWM infrastructure is in place and the driver makes use of it. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-09-03Input: pwm-beeper - fix module autoload for OF platform driverLuis de Bethencourt
This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-12Input: pwm-beeper - remove useless call to pwm_config()Olivier Sobrie
Calling pwm_config() with a period equal to zero always results in error (-EINVAL) and pwm chip config method is never called. Signed-off-by: Olivier Sobrie <olivier@sobrie.be> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-03-07Input: pwm-beeper - remove unneeded PWM_BEEPER_PM_OPS defineDmitry Torokhov
The device->pm pointer is always present so there is no need to do tricks with conditionally defining the pointer. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-12-17Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov: "Two new drivers for Elan hardware (for I2C touchpad and touchscreen found in several Chromebooks and other devices), a driver for Goodix touch panel, and small fixes to Cypress I2C trackpad and other input drivers. Also we switched to use __maybe_unused instead of gating suspend/ resume code with #ifdef guards to get better compile coverage" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (27 commits) Input: gpio_keys - fix warning regarding uninitialized 'button' variable Input: add support for Elan eKTH I2C touchscreens Input: gpio_keys - fix warning regarding uninitialized 'irq' variable Input: cyapa - use 'error' for error codes Input: cyapa - fix resuming the device Input: gpio_keys - add device tree support for interrupt only keys Input: amikbd - allocate temporary keymap buffer on the stack Input: amikbd - fix build if !CONFIG_HW_CONSOLE Input: lm8323 - missing error check in lm8323_set_disable() Input: initialize device counter variables with -1 Input: initialize input_no to -1 to avoid subtraction Input: i8042 - do not try to load on Intel NUC D54250WYK Input: atkbd - correct MSC_SCAN events for force_release keys Input: cyapa - switch to using managed resources Input: lifebook - use "static inline" instead of "inline" in lifebook.h Input: touchscreen - use __maybe_unused instead of ifdef around suspend/resume Input: mouse - use __maybe_unused instead of ifdef around suspend/resume Input: misc - use __maybe_unused instead of ifdef around suspend/resume Input: cap11xx - support for irq-active-high option Input: cap11xx - add support for various cap11xx devices ...
2014-11-02Input: misc - use __maybe_unused instead of ifdef around suspend/resumeJingoo Han
Use __maybe_unused instead of ifdef guards around suspend/resume functions, in order to increase build coverage and fix build warnings. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-10-20input: misc: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-12-06Input: use dev_get_platdata()Jingoo Han
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-10-06Input: pwm-beeper - include linux/of.h headerSachin Kamat
'of_match_ptr' is defined in linux/of.h. Include it explicitly. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2013-08-12Input: pwm-beeper - add CONFIG_PM_SLEEP to suspend/resumeJingoo Han
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>
2013-05-05Input: pwm-beeper - remove redundant platform_set_drvdata()Sachin Kamat
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-24Input: remove use of __devexit_pBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-11-03Input: pwm-beeper - add devicetree probing supportSascha Hauer
A very simple binding, the only property is the phandle to the PWM. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2011-11-30Input: misc - use macro module_platform_driver()JJ Ding
Commit 940ab88962bc1aff3273a8356d64577a6e386736 introduced a new macro to save some platform_driver boilerplate code. Use it. Signed-off-by: JJ Ding <dgdunix@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-07-14Input: Add pwm beeper driverLars-Peter Clausen
This patch adds a simple driver which allows to use pwm based beepers (for example piezo elements) as a pcspkr-like device. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-20 07:24:19 +0000