kernel/linux.git/drivers/reset/reset-gpio.c, branch linux-7.0.y

reset: gpio: check the return value of gpiod_set_value_cansleep()

2026-01-24T15:25:46+00:00

gpiod_set_value_cansleep() now returns an integer and can indicate failures. Propagate the return value to the caller of the reset API. Signed-off-by: Bartosz Golaszewski Reviewed-by: Philipp Zabel Signed-off-by: Philipp Zabel

reset: gpio: suppress bind attributes in sysfs

2026-01-19T11:16:41+00:00

This is a special device that's created dynamically and is supposed to stay in memory forever. We also currently don't have a devlink between it and the actual reset consumer. Suppress sysfs bind attributes so that user-space can't unbind the device because - as of now - it will cause a use-after-free splat from any user that puts the reset control handle. Fixes: cee544a40e44 ("reset: gpio: Add GPIO-based reset controller") Cc: stable@vger.kernel.org Signed-off-by: Bartosz Golaszewski Reviewed-by: Krzysztof Kozlowski Signed-off-by: Philipp Zabel

reset: gpio: convert the driver to using the auxiliary bus

2025-11-20T15:51:48+00:00

As the reset-gpio devices are purely virtual and never instantiated from real firmware nodes, let's convert the driver to using the - more fitting - auxiliary bus. Reviewed-by: Philipp Zabel Acked-by: Linus Walleij Acked-by: Greg Kroah-Hartman Signed-off-by: Bartosz Golaszewski Signed-off-by: Philipp Zabel

reset: gpio: Add GPIO-based reset controller

2024-02-21T10:53:25+00:00

Add a simple driver to control GPIO-based resets using the reset controller API for the cases when the GPIOs are shared and reset should be coordinated. The driver is expected to be used by reset core framework for ad-hoc reset controllers. Cc: Bartosz Golaszewski Cc: Chris Packham Cc: Sean Anderson Reviewed-by: Bartosz Golaszewski Reviewed-by: Philipp Zabel Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20240129115216.96479-4-krzysztof.kozlowski@linaro.org Signed-off-by: Philipp Zabel