kernel/linux.git/drivers/pwm/Makefile, branch v6.18.22

pwm: max7360: Add MAX7360 PWM support

2025-09-16T14:24:48+00:00

Add driver for Maxim Integrated MAX7360 PWM controller, supporting up to 8 independent PWM outputs. Signed-off-by: Kamel Bouhara Co-developed-by: Mathieu Dubois-Briand Signed-off-by: Mathieu Dubois-Briand Reviewed-by: Andy Shevchenko Acked-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-4-435cfda2b1ea@bootlin.com Signed-off-by: Lee Jones

pwm: argon-fan-hat: Add Argon40 Fan HAT support

2025-07-07T06:39:35+00:00

Add trivial PWM driver for Argon40 Fan HAT, which is a RaspberryPi blower fan hat which can be controlled over I2C. Model this device as a PWM, so the pwm-fan can be attached to it and handle thermal zones and RPM management in a generic manner. Signed-off-by: Marek Vasut Link: https://lore.kernel.org/r/20250629220757.936212-3-marek.vasut+renesas@mailbox.org Signed-off-by: Uwe Kleine-König

pwm: Tidyup PWM menu for Renesas

2025-05-14T08:20:55+00:00

Because current PWM Kconfig is sorting by symbol name, it looks strange ordering in menuconfig. => [ ] Renesas R-Car PWM support => [ ] Renesas TPU PWM support [ ] Rockchip PWM support => [ ] Renesas RZ/G2L General PWM Timer support => [ ] Renesas RZ/G2L MTU3a PWM Timer support Let's use common CONFIG_PWM_RENESAS_xxx symbol name for Renesas, and sort it. Signed-off-by: Kuninori Morimoto Reviewed-by: Biju Das Link: https://lore.kernel.org/r/877c2mxrrr.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Uwe Kleine-König

pwm: Restore alphabetic ordering in Kconfig and Makefile

2025-05-08T09:52:31+00:00

The drivers are nearly ordered alphabetically by the symbol name. Fix the few outliers. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20250508081706.751209-2-u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König

pwm: add support for NXPs high-side switch MC33XS2410

2025-05-02T16:39:21+00:00

The MC33XS2410 is a four channel high-side switch. Featuring advanced monitoring and control function, the device is operational from 3.0 V to 60 V. The device is controlled by SPI port for configuration. Signed-off-by: Dimitri Fedrau Link: https://lore.kernel.org/r/20250407-mc33xs2410-v9-2-57adcb56a6e4@liebherr.com Signed-off-by: Uwe Kleine-König

pwm: Add support for RZ/G2L GPT

2025-04-17T09:52:13+00:00

RZ/G2L General PWM Timer (GPT) composed of 8 channels with 32-bit timer (GPT32E). It supports the following functions * 32 bits x 8 channels * Up-counting or down-counting (saw waves) or up/down-counting (triangle waves) for each counter. * Clock sources independently selectable for each channel * Two I/O pins per channel * Two output compare/input capture registers per channel * For the two output compare/input capture registers of each channel, four registers are provided as buffer registers and are capable of operating as comparison registers when buffering is not in use. * In output compare operation, buffer switching can be at crests or troughs, enabling the generation of laterally asymmetric PWM waveforms. * Registers for setting up frame cycles in each channel (with capability for generating interrupts at overflow or underflow) * Generation of dead times in PWM operation * Synchronous starting, stopping and clearing counters for arbitrary channels * Starting, stopping, clearing and up/down counters in response to input level comparison * Starting, clearing, stopping and up/down counters in response to a maximum of four external triggers * Output pin disable function by dead time error and detected short-circuits between output pins * A/D converter start triggers can be generated (GPT32E0 to GPT32E3) * Enables the noise filter for input capture and external trigger operation Add basic pwm support for RZ/G2L GPT driver by creating separate logical channels for each IOs. Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20250226144531.176819-4-biju.das.jz@bp.renesas.com Signed-off-by: Uwe Kleine-König

pwm: Add Loongson PWM controller support

2025-04-14T06:03:15+00:00

This commit adds a generic PWM framework driver for the PWM controller found on Loongson family chips. Acked-by: Huacai Chen Co-developed-by: Juxin Gao Signed-off-by: Juxin Gao Signed-off-by: Binbin Zhou Link: https://lore.kernel.org/r/76050a903a8015422fb9261ad88c7d9cc2edbbd8.1743403075.git.zhoubinbin@loongson.cn Signed-off-by: Uwe Kleine-König

pwm: sophgo: add driver for Sophgo SG2042 PWM

2025-02-05T10:06:38+00:00

Add a PWM driver for PWM controller in Sophgo SG2042 SoC. Signed-off-by: Sean Young Signed-off-by: Chen Wang Link: https://lore.kernel.org/r/ae8ea1bf0bb0a09336cd8b7f627a994630524bba.1738737617.git.unicorn_wang@outlook.com [ukleinek: Drop unneeded reset_control_assert() from error path] Signed-off-by: Uwe Kleine-König

pwm: adp5585: Add Analog Devices ADP5585 support

2024-08-01T13:09:28+00:00

The ADP5585 is a 10/11 input/output port expander with a built in keypad matrix decoder, programmable logic, reset generator, and PWM generator. This driver supports the PWM function using the platform device registered by the core MFD driver. The driver is derived from an initial implementation from NXP, available in commit 113113742208 ("MLK-25922-1 pwm: adp5585: add adp5585 PWM support") in their BSP kernel tree. It has been extensively rewritten. Signed-off-by: Clark Wang Reviewed-by: Frank Li Co-developed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart Acked-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20240722121100.2855-5-laurent.pinchart@ideasonboard.com Signed-off-by: Lee Jones

pwm: Add GPIO PWM driver

2024-07-10T15:52:47+00:00

Add a software PWM which toggles a GPIO from a high-resolution timer. This will naturally not be as accurate or as efficient as a hardware PWM, but it is useful in some cases. I have for example used it for evaluating LED brightness handling (via leds-pwm) on a board where the LED was just hooked up to a GPIO, and for a simple verification of the timer frequency on another platform. Since high-resolution timers are used, sleeping GPIO chips are not supported and are rejected in the probe function. Signed-off-by: Vincent Whitchurch Co-developed-by: Stefan Wahren Signed-off-by: Stefan Wahren Co-developed-by: Linus Walleij Reviewed-by: Andy Shevchenko Signed-off-by: Linus Walleij Reviewed-by: Dhruva Gole Link: https://lore.kernel.org/r/20240604-pwm-gpio-v7-2-6b67cf60db92@linaro.org Signed-off-by: Uwe Kleine-König