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| author | Ahmad Fatoum <ahmad@a3f.at> | 2021-04-10 12:51:10 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-04-13 09:20:25 +0200 |
| commit | b11b738ed1b1e05a20680451b9fae52530645acb (patch) | |
| tree | cad12f8615cdf8fb5888d4f7023e95195a26f78a /drivers | |
| parent | 4dd63cd988b81bb3dff2621e32a2cf989e788349 (diff) | |
| download | barebox-b11b738ed1b1e05a20680451b9fae52530645acb.tar.gz barebox-b11b738ed1b1e05a20680451b9fae52530645acb.tar.xz | |
gpio: pl061: implement gpio_ops::get_direction
This makes gpioinfo on board that incorporate it more useful.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Link: https://lore.pengutronix.de/20210410105110.2080785-1-ahmad@a3f.at
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpio-pl061.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index b9a8846ded..8dd9ca3bd5 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -84,7 +84,18 @@ static void pl061_set_value(struct gpio_chip *gc, unsigned offset, int value) writeb(!!value << offset, chip->base + (1 << (offset + 2))); } +static int pl061_get_direction(struct gpio_chip *gc, unsigned offset) +{ + struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc); + + if (readb(chip->base + GPIODIR) & (1 << offset)) + return GPIOF_DIR_OUT; + + return GPIOF_DIR_IN; +} + static struct gpio_ops pl061_gpio_ops = { + .get_direction = pl061_get_direction, .direction_input = pl061_direction_input, .direction_output = pl061_direction_output, .get = pl061_get_value, |