diff options
| author | Michal Simek <[email protected]> | 2026-02-03 08:52:30 +0100 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2026-02-13 08:16:25 +0100 |
| commit | b86fa3fd24cb4b2f67d8a171ce09be0efcb8ec72 (patch) | |
| tree | 3b5478617c2ad3a4b8875e5576c8d96f059f08ba /drivers/gpio/Kconfig | |
| parent | 770a1ad4e2063b296d08483f4b6c965f38b27c97 (diff) | |
gpio: Add GPIO delay driver
Add a GPIO controller driver that provides configurable delays when
setting GPIO output values. This is useful for hardware that requires
specific timing delays during power sequencing or GPIO state changes.
The driver wraps underlying GPIO controllers and adds programmable
ramp-up and ramp-down delays specified in microseconds through the
device tree. Each GPIO can have independent delay timings.
Device tree binding matches Linux.
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/575998efc6ba0e405640789cf8d05f0b633f496e.1770105146.git.michal.simek@amd.com
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 60c5c54688e..f69919abc05 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1,3 +1,11 @@ +config GPIO_DELAY + bool "GPIO delay driver" + depends on DM_GPIO + help + Enable the GPIO delay driver. + This driver allows wrapping another GPIO controller and inserting + ramp-up/ramp-down delays on output changes, as described in the + Linux gpio-delay binding. # # GPIO infrastructure and drivers # |