pinctrl: change the signature of pinctrl_gpio_direction()

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

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/core.c

@@ -850,22 +850,24 @@ void pinctrl_gpio_free(struct gpio_chip *gc, unsigned int offset)
 }
 EXPORT_SYMBOL_GPL(pinctrl_gpio_free);
 
-static int pinctrl_gpio_direction(unsigned gpio, bool input)
+static int pinctrl_gpio_direction(struct gpio_chip *gc, unsigned int offset,
+				  bool input)
 {
 	struct pinctrl_dev *pctldev;
 	struct pinctrl_gpio_range *range;
 	int ret;
 	int pin;
 
-	ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
+	ret = pinctrl_get_device_gpio_range(gc->base + offset, &pctldev,
+					    &range);
 	if (ret) {
 		return ret;
 	}
 
 	mutex_lock(&pctldev->mutex);
 
 	/* Convert to the pin controllers number space */
-	pin = gpio_to_pin(range, gpio);
+	pin = gpio_to_pin(range, gc->base + offset);
 	ret = pinmux_gpio_direction(pctldev, range, pin, input);
 
 	mutex_unlock(&pctldev->mutex);
@@ -884,7 +886,7 @@ static int pinctrl_gpio_direction(unsigned gpio, bool input)
  */
 int pinctrl_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
 {
-	return pinctrl_gpio_direction(gc->base + offset, true);
+	return pinctrl_gpio_direction(gc, offset, true);
 }
 EXPORT_SYMBOL_GPL(pinctrl_gpio_direction_input);
 
@@ -899,7 +901,7 @@ EXPORT_SYMBOL_GPL(pinctrl_gpio_direction_input);
  */
 int pinctrl_gpio_direction_output(struct gpio_chip *gc, unsigned int offset)
 {
-	return pinctrl_gpio_direction(gc->base + offset, false);
+	return pinctrl_gpio_direction(gc, offset, false);
 }
 EXPORT_SYMBOL_GPL(pinctrl_gpio_direction_output);