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gpiolib: Introduce gpio_set_debounce_timeout() for internal use 

In some cases we would like to have debounce setter which doesn't fail
when a feature is not supported by a controller.

Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Andy Shevchenko 2020-11-09 22:53:23 +02:00
parent baca3b15cd
commit f725edd86b
2 changed files with 8 additions and 0 deletions
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7
drivers/gpio/gpiolib.c
View File

@ -2160,6 +2160,13 @@ static int gpio_set_bias(struct gpio_desc *desc)
return gpio_set_config_with_argument_optional(desc, bias, arg);
}
int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce)
{
return gpio_set_config_with_argument_optional(desc,
PIN_CONFIG_INPUT_DEBOUNCE,
debounce);
}
/**
* gpiod_direction_input - set the GPIO direction to input
* @desc: GPIO to set to input

1
drivers/gpio/gpiolib.h
View File

@ -134,6 +134,7 @@ int gpiod_request(struct gpio_desc *desc, const char *label);
void gpiod_free(struct gpio_desc *desc);
int gpiod_configure_flags(struct gpio_desc *desc, const char *con_id,
unsigned long lflags, enum gpiod_flags dflags);
int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce);
int gpiod_hog(struct gpio_desc *desc, const char *name,
unsigned long lflags, enum gpiod_flags dflags);