From 31bea23119cda87088c6bd4085a1e442c6c5974c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nuno=20S=C3=A1?= Date: Wed, 13 Jul 2022 15:14:19 +0200 Subject: gpiolib: of: support bias pull disable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib-of.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/gpio/gpiolib-of.c') 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; -- cgit v1.2.3