gpio: Pass GPIO label down to gpiod_request
Currently all users of fwnode_get_named_gpiod() have no way to
specify a label for the GPIO. So GPIOs listed in debugfs are shown
with label "?". With this change a proper label is used.
Also adjust all users so they can pass a label, properly retrieved
from device tree properties.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 930d100..80bad7e 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -136,11 +136,13 @@ struct fwnode_handle;
struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
const char *propname,
- enum gpiod_flags dflags);
+ enum gpiod_flags dflags,
+ const char *label);
struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
const char *con_id,
struct fwnode_handle *child,
- enum gpiod_flags flags);
+ enum gpiod_flags flags,
+ const char *label);
#else /* CONFIG_GPIOLIB */
static inline int gpiod_count(struct device *dev, const char *con_id)
@@ -416,7 +418,8 @@ struct fwnode_handle;
static inline
struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
const char *propname,
- enum gpiod_flags dflags)
+ enum gpiod_flags dflags,
+ const char *label)
{
return ERR_PTR(-ENOSYS);
}
@@ -425,7 +428,8 @@ static inline
struct gpio_desc *devm_get_gpiod_from_child(struct device *dev,
const char *con_id,
struct fwnode_handle *child,
- enum gpiod_flags flags)
+ enum gpiod_flags flags,
+ const char *label)
{
return ERR_PTR(-ENOSYS);
}