pinctrl: change the signature of pinctrl_match_gpio_range()

Modify pinctrl_match_gpio_range() to be in line with public GPIO
helpers and take a pair of GPIO chip & offset as arguments.

Signed-off-by: Bartosz Golaszewski <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Acked-by: Linus Walleij <[email protected]>

Author: Bartosz Golaszewski

drivers/pinctrl/core.c

@@ -292,22 +292,24 @@ static inline int gpio_to_pin(struct pinctrl_gpio_range *range,
 /**
  * pinctrl_match_gpio_range() - check if a certain GPIO pin is in range
  * @pctldev: pin controller device to check
- * @gpio: gpio pin to check taken from the global GPIO pin space
+ * @gc: GPIO chip structure from the GPIO subsystem
+ * @offset: hardware offset of the GPIO relative to the controller
  *
  * Tries to match a GPIO pin number to the ranges handled by a certain pin
  * controller, return the range or NULL
  */
 static struct pinctrl_gpio_range *
-pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, unsigned gpio)
+pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, struct gpio_chip *gc,
+			 unsigned int offset)
 {
 	struct pinctrl_gpio_range *range;
 
 	mutex_lock(&pctldev->mutex);
 	/* Loop over the ranges */
 	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
 		/* Check if we're in the valid range */
-		if (gpio >= range->base &&
-		    gpio < range->base + range->npins) {
+		if ((gc->base + offset) >= range->base &&
+		    (gc->base + offset) < range->base + range->npins) {
 			mutex_unlock(&pctldev->mutex);
 			return range;
 		}
@@ -395,7 +397,7 @@ static int pinctrl_get_device_gpio_range(struct gpio_chip *gc,
 	list_for_each_entry(pctldev, &pinctrldev_list, node) {
 		struct pinctrl_gpio_range *range;
 
-		range = pinctrl_match_gpio_range(pctldev, gc->base + offset);
+		range = pinctrl_match_gpio_range(pctldev, gc, offset);
 		if (range) {
 			*outdev = pctldev;
 			*outrange = range;