diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-03-07 13:56:23 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-03-07 15:25:27 +0100 |
| commit | 660c619b9d7ccd28648ee3766cdbe94ec7b27402 (patch) | |
| tree | 515bdab41af98194a4eb1677d9627fc63e0fbcfd /drivers/gpio/gpiolib.c | |
| parent | fc328a7d1fcce263db0b046917a66f3aa6e68719 (diff) | |
gpiolib: acpi: Convert ACPI value of debounce to microseconds
It appears that GPIO ACPI library uses ACPI debounce values directly.
However, the GPIO library APIs expect the debounce timeout to be in
microseconds.
Convert ACPI value of debounce to microseconds.
While at it, document this detail where it is appropriate.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215664
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Fixes: 8dcb7a15a585 ("gpiolib: acpi: Take into account debounce settings")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 005642068c0b..defb7c464b87 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2217,6 +2217,16 @@ static int gpio_set_bias(struct gpio_desc *desc) return gpio_set_config_with_argument_optional(desc, bias, arg); } +/** + * gpio_set_debounce_timeout() - Set debounce timeout + * @desc: GPIO descriptor to set the debounce timeout + * @debounce: Debounce timeout in microseconds + * + * The function calls the certain GPIO driver to set debounce timeout + * in the hardware. + * + * Returns 0 on success, or negative error code otherwise. + */ int gpio_set_debounce_timeout(struct gpio_desc *desc, unsigned int debounce) { return gpio_set_config_with_argument_optional(desc, |