gpiolib: devres: Get rid of unused devm_gpio_free()

The last user, which in fact was a dead code, has gone a year ago,
previous one 3 years ago. On top of that we want to drop away the
legacy GPIO APIs in the kernel, so take a chance to get rid of
unused devm_gpio_free() and accompanying stuff.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

1 files changed, 0 insertions, 32 deletions

diff --git a/drivers/gpio/gpiolib-devres.c b/drivers/gpio/gpiolib-devres.c
index 79da85d17b71..16a696249229 100644
--- a/drivers/gpio/gpiolib-devres.c
+++ b/drivers/gpio/gpiolib-devres.c
@@ -375,9 +375,6 @@ void devm_gpiod_put_array(struct device *dev, struct gpio_descs *descs)
 }
 EXPORT_SYMBOL_GPL(devm_gpiod_put_array);
 
-
-
-
 static void devm_gpio_release(struct device *dev, void *res)
 {
 	unsigned *gpio = res;
@@ -385,13 +382,6 @@ static void devm_gpio_release(struct device *dev, void *res)
 	gpio_free(*gpio);
 }
 
-static int devm_gpio_match(struct device *dev, void *res, void *data)
-{
-	unsigned *this = res, *gpio = data;
-
-	return *this == *gpio;
-}
-
 /**
  *      devm_gpio_request - request a GPIO for a managed device
  *      @dev: device to request the GPIO for
@@ -402,11 +392,7 @@ static int devm_gpio_match(struct device *dev, void *res, void *data)
  *      same arguments and performs the same function as
  *      gpio_request().  GPIOs requested with this function will be
  *      automatically freed on driver detach.
- *
- *      If an GPIO allocated with this function needs to be freed
- *      separately, devm_gpio_free() must be used.
  */
-
 int devm_gpio_request(struct device *dev, unsigned gpio, const char *label)
 {
 	unsigned *dr;
@@ -459,24 +445,6 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio,
 }
 EXPORT_SYMBOL_GPL(devm_gpio_request_one);
 
-/**
- *      devm_gpio_free - free a GPIO
- *      @dev: device to free GPIO for
- *      @gpio: GPIO to free
- *
- *      Except for the extra @dev argument, this function takes the
- *      same arguments and performs the same function as gpio_free().
- *      This function instead of gpio_free() should be used to manually
- *      free GPIOs allocated with devm_gpio_request().
- */
-void devm_gpio_free(struct device *dev, unsigned int gpio)
-{
-
-	WARN_ON(devres_release(dev, devm_gpio_release, devm_gpio_match,
-		&gpio));
-}
-EXPORT_SYMBOL_GPL(devm_gpio_free);
-
 static void devm_gpio_chip_release(void *data)
 {
 	struct gpio_chip *gc = data;