diff options
| author | Nuno Sá <nuno.sa@analog.com> | 2022-07-13 16:14:19 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-07-19 11:24:01 +0300 |
| commit | 31bea23119cda87088c6bd4085a1e442c6c5974c (patch) | |
| tree | e9da025ccb05f02898510e6607fad107811b14d9 /drivers | |
| parent | c269df8c5ad316eac47a9078e7a2339e1956637a (diff) | |
| download | linux-31bea23119cda87088c6bd4085a1e442c6c5974c.tar.xz | |
gpiolib: of: support bias pull disable
On top of looking at PULL_UP and PULL_DOWN flags, also look at
PULL_DISABLE and set the appropriate GPIO flag. The GPIO core will then
pass down this to controllers that support it.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index f80307be37d5..a037b50bef33 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -354,6 +354,9 @@ struct gpio_desc *gpiod_get_from_of_node(const struct device_node *node, if (flags & OF_GPIO_PULL_DOWN) lflags |= GPIO_PULL_DOWN; + if (flags & OF_GPIO_PULL_DISABLE) + lflags |= GPIO_PULL_DISABLE; + ret = gpiod_configure_flags(desc, propname, lflags, dflags); if (ret < 0) { gpiod_put(desc); @@ -556,6 +559,8 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, *flags |= GPIO_PULL_UP; if (of_flags & OF_GPIO_PULL_DOWN) *flags |= GPIO_PULL_DOWN; + if (of_flags & OF_GPIO_PULL_DISABLE) + *flags |= GPIO_PULL_DISABLE; return desc; } @@ -621,6 +626,8 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np, *lflags |= GPIO_PULL_UP; if (xlate_flags & OF_GPIO_PULL_DOWN) *lflags |= GPIO_PULL_DOWN; + if (xlate_flags & OF_GPIO_PULL_DISABLE) + *lflags |= GPIO_PULL_DISABLE; if (of_property_read_bool(np, "input")) *dflags |= GPIOD_IN; |