kernel/linux.git/drivers/input/misc/pwm-beeper.c, branch v6.12.80

pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()

2023-12-20T15:07:04+00:00

In order to introduce a pwm api which can be used from atomic context, we will need two functions for applying pwm changes: int pwm_apply_might_sleep(struct pwm *, struct pwm_state *); int pwm_apply_atomic(struct pwm *, struct pwm_state *); This commit just deals with renaming pwm_apply_state(), a following commit will introduce the pwm_apply_atomic() function. Acked-by: Uwe Kleine-König Acked-by: Guenter Roeck Acked-by: Mark Brown Acked-by: Dmitry Torokhov # for input Acked-by: Hans de Goede Acked-by: Jani Nikula Acked-by: Lee Jones Signed-off-by: Sean Young Signed-off-by: Thierry Reding

Input: gpio-vibra - simplify with dev_err_probe()

2023-07-07T23:54:27+00:00

Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Hans de Goede Reviewed-by: Andy Shevchenko Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20230625162817.100397-3-krzysztof.kozlowski@linaro.org Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

2023-01-10T04:25:22+00:00

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection against unused function warnings. The new combination of pm_sleep_ptr() and DEFINE_SIMPLE_DEV_PM_OPS() allows the compiler to see the functions, thus suppressing the warning, but still allowing the unused code to be removed. Thus also drop the __maybe_unused markings. Signed-off-by: Jonathan Cameron Cc: Lars-Peter Clausen Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20230102181842.718010-20-jic23@kernel.org Signed-off-by: Dmitry Torokhov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151

2019-05-30T18:26:28+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 35 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.655028468@linutronix.de Signed-off-by: Greg Kroah-Hartman

Input: pwm-beeper - support customized freq for SND_BELL

2017-03-07T18:39:23+00:00

Extend the pwm-beeper driver to support customized frequency for SND_BELL from device properties. Signed-off-by: Guan Ben Signed-off-by: Mark Jonas Signed-off-by: Heiko Schocher Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - switch to using "atomic" PWM API

2017-01-22T08:26:36+00:00

The "atomic" API allows us to configure PWM period and duty cycle and enable it in one call. Reviewed-by: Thierry Reding Tested-by: David Lechner Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - add optional amplifier regulator

2017-01-22T08:23:22+00:00

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 Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - suppress error message on probe defer

2017-01-22T08:23:20+00:00

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 Reviewed-by: Thierry Reding Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - fix race when suspending

2017-01-22T08:23:19+00:00

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 Tested-by: David Lechner Signed-off-by: Dmitry Torokhov

Input: pwm-beeper - use input_set_capability()

2017-01-22T08:23:18+00:00

Instead of manipulating capability bits directly, let's use input_set_capability() API. Reviewed-by: Thierry Reding Tested-by: David Lechner Signed-off-by: Dmitry Torokhov