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path: root/drivers/input/misc/regulator-haptic.c
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2025-01-14Input: Use str_enable_disable-like helpersKrzysztof Kozlowski
Replace ternary (condition ? "enable" : "disable") syntax with helpers from string_choices.h because: 1. Simple function call with one argument is easier to read. Ternary operator has three arguments and with wrapping might lead to quite long code. 2. Is slightly shorter thus also easier to read. 3. It brings uniformity in the text - same string. 4. Allows deduping by the linker, which results in a smaller binary file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250114192701.912430-1-krzysztof.kozlowski@linaro.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-10-03Input: regulator-haptic - use guard notation when acquiring mutexDmitry Torokhov
Using guard notation makes the code more compact and error handling more robust by ensuring that mutexes are released in all code paths when control leaves critical section. Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/ZtjJKxQRRzJE0aWZ@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2023-01-09Input: regulator-haptic - switch to DEFINE_SIMPLE_DEV_PM_OPS() and ↵Jonathan Cameron
pm_sleep_ptr() 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 <Jonathan.Cameron@huawei.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20230102181842.718010-22-jic23@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-25locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns ↵Mark Rutland
to READ_ONCE()/WRITE_ONCE() Please do not apply this to mainline directly, instead please re-run the coccinelle script shown below and apply its output. For several reasons, it is desirable to use {READ,WRITE}_ONCE() in preference to ACCESS_ONCE(), and new code is expected to use one of the former. So far, there's been no reason to change most existing uses of ACCESS_ONCE(), as these aren't harmful, and changing them results in churn. However, for some features, the read/write distinction is critical to correct operation. To distinguish these cases, separate read/write accessors must be used. This patch migrates (most) remaining ACCESS_ONCE() instances to {READ,WRITE}_ONCE(), using the following coccinelle script: ---- // Convert trivial ACCESS_ONCE() uses to equivalent READ_ONCE() and // WRITE_ONCE() // $ make coccicheck COCCI=/home/mark/once.cocci SPFLAGS="--include-headers" MODE=patch virtual patch @ depends on patch @ expression E1, E2; @@ - ACCESS_ONCE(E1) = E2 + WRITE_ONCE(E1, E2) @ depends on patch @ expression E; @@ - ACCESS_ONCE(E) + READ_ONCE(E) ---- Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: davem@davemloft.net Cc: linux-arch@vger.kernel.org Cc: mpe@ellerman.id.au Cc: shuah@kernel.org Cc: snitzer@redhat.com Cc: thor.thayer@linux.intel.com Cc: tj@kernel.org Cc: viro@zeniv.linux.org.uk Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/1508792849-3115-19-git-send-email-paulmck@linux.vnet.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-23Input: regulator-haptic - fix spelling mistake: "dveice" -> "device"Colin Ian King
Trivial fix to spelling mistake Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-03Input: regulator-haptic - 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>
2015-03-19Input: constify of_device_id arraysFabian Frederick
of_device_id is always used as const argument (See driver.of_match_table and open firmware functions). Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-01-11Input: regulator-haptic - simplify codeAxel Lin
All the use cases in this driver has a regulator_haptic_toggle() call after regulator_haptic_set_voltage(). So make regulator_haptic_set_voltage() call regulator_haptic_toggle() to simplify the code. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-12-21Input: add regulator haptic driverJaewon Kim
This change adds support for haptic driver controlled by voltage of a regulator. Userspace can control the device via Force Feedback interface from input framework. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> Signed-off-by: Hyunhee Kim <hyunhee.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>