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| author | Linus Walleij <linus.walleij@linaro.org> | 2018-09-03 10:04:01 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-09-10 08:49:22 +0200 |
| commit | ba74bd5d5b5b063d50891af16d5c14c29bcc52a6 (patch) | |
| tree | b72f88ea7a33c8e514c8a0ac3ace147a05041046 | |
| parent | 4bef8bf20b69c3a98dbb9c8e406c22adb8fd3903 (diff) | |
| download | lwn-ba74bd5d5b5b063d50891af16d5c14c29bcc52a6.tar.gz lwn-ba74bd5d5b5b063d50891af16d5c14c29bcc52a6.zip | |
gpio: twl6040: Implement .get_direction()
The gpiolib cannot deduce the fact that every line is output
by itself, implement a .get_direction() callback so we can
inspect this.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-twl6040.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-twl6040.c b/drivers/gpio/gpio-twl6040.c index 77d50542bf61..c845b2ff1f43 100644 --- a/drivers/gpio/gpio-twl6040.c +++ b/drivers/gpio/gpio-twl6040.c @@ -32,6 +32,12 @@ static int twl6040gpo_get(struct gpio_chip *chip, unsigned offset) return !!(ret & BIT(offset)); } +static int twl6040gpo_get_direction(struct gpio_chip *chip, unsigned offset) +{ + /* This means "out" */ + return 0; +} + static int twl6040gpo_direction_out(struct gpio_chip *chip, unsigned offset, int value) { @@ -62,6 +68,7 @@ static struct gpio_chip twl6040gpo_chip = { .owner = THIS_MODULE, .get = twl6040gpo_get, .direction_output = twl6040gpo_direction_out, + .get_direction = twl6040gpo_get_direction, .set = twl6040gpo_set, .can_sleep = true, }; |