diff options
| author | Matti Vaittinen <[email protected]> | 2019-11-06 08:54:12 +0000 |
|---|---|---|
| committer | Linus Walleij <[email protected]> | 2019-11-07 08:27:48 +0000 |
| commit | e42615ec233b30dfaf117b108d4cb49455b4df1d (patch) | |
| tree | e3d05700c2310d6bde433b268fed6284a4eec5b1 /drivers/gpio/gpio-uniphier.c | |
| parent | gpio: Add definition for GPIO direction (diff) | |
| download | kernel-e42615ec233b30dfaf117b108d4cb49455b4df1d.tar.gz kernel-e42615ec233b30dfaf117b108d4cb49455b4df1d.zip | |
gpio: Use new GPIO_LINE_DIRECTION
It's hard for occasional GPIO code reader/writer to know if values 0/1
equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT to help them out.
NOTE - for gpio-amd-fch and gpio-bd9571mwv:
This commit also changes the return value for direction get to equal 1
for direction INPUT. Prior this commit these drivers might have
returned some other positive value but 1 for INPUT.
Signed-off-by: Matti Vaittinen <[email protected]>
Acked-by: Scott Branden <[email protected]>
Reviewed-by: Grygorii Strashko <[email protected]>
Reviewed-by: Michal Simek <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Acked-by: William Breathitt Gray <[email protected]>
Acked-by: Kuppuswamy Sathyanarayanan <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Diffstat (limited to 'drivers/gpio/gpio-uniphier.c')
| -rw-r--r-- | drivers/gpio/gpio-uniphier.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index 93cdcc41e9fb..bd203e8fa58e 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -113,7 +113,10 @@ static int uniphier_gpio_offset_read(struct gpio_chip *chip, static int uniphier_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) { - return uniphier_gpio_offset_read(chip, offset, UNIPHIER_GPIO_PORT_DIR); + if (uniphier_gpio_offset_read(chip, offset, UNIPHIER_GPIO_PORT_DIR)) + return GPIO_LINE_DIRECTION_IN; + + return GPIO_LINE_DIRECTION_OUT; } static int uniphier_gpio_direction_input(struct gpio_chip *chip, |