summaryrefslogtreecommitdiff
path: root/include/linux/gpio/consumer.h
diff options
context:
space:
mode:
authorLinus Walleij <linus.walleij@linaro.org>2018-12-06 15:43:42 +0300
committerMark Brown <broonie@kernel.org>2018-12-11 04:04:04 +0300
commitfe6c473e3e41114301bfbf5710be56bf0eb233dc (patch)
tree856ff4dd4f4b8cf119d6b39102135310726205fb /include/linux/gpio/consumer.h
parent894077d5c871f86e6c88a70ac016b6811a910b23 (diff)
downloadlinux-fe6c473e3e41114301bfbf5710be56bf0eb233dc.tar.xz
gpio: Export gpiod_get_from_of_node()
This function already exist inside gpiolib, we were just reluctant to make it available to the kernel at large as the devm_* seemed to be enough for anyone. However we found out that regulators need to do their own lifecycle/refcounting on GPIO descriptors and explicitly call gpiod_put() when done with a descriptor, so export this function so we can hand the refcounting over to the regulator core for these descriptors after retrieveal. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/gpio/consumer.h')
-rw-r--r--include/linux/gpio/consumer.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index f2f887795d43..348885f2f3d3 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -172,6 +172,10 @@ int desc_to_gpio(const struct gpio_desc *desc);
struct device_node;
struct fwnode_handle;
+struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label);
struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
struct device_node *node,
const char *propname, int index,
@@ -518,6 +522,15 @@ struct device_node;
struct fwnode_handle;
static inline
+struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline
struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
struct device_node *node,
const char *propname, int index,