pinctrl: remove pinctrl_gpio_can_use_line()

There are no more users of pinctrl_gpio_can_use_line() so remove it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/core.c

@@ -755,7 +755,7 @@ int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
 	return -EINVAL;
 }
 
-bool pinctrl_gpio_can_use_line(unsigned gpio)
+bool pinctrl_gpio_can_use_line_new(struct gpio_chip *gc, unsigned int offset)
 {
 	struct pinctrl_dev *pctldev;
 	struct pinctrl_gpio_range *range;
@@ -767,26 +767,20 @@ bool pinctrl_gpio_can_use_line(unsigned gpio)
 	 * we're probably dealing with GPIO driver
 	 * without a backing pin controller - bail out.
 	 */
-	if (pinctrl_get_device_gpio_range(gpio, &pctldev, &range))
+	if (pinctrl_get_device_gpio_range(gc->base + offset, &pctldev, &range))
 		return true;
 
 	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);
 
 	result = pinmux_can_be_used_for_gpio(pctldev, pin);
 
 	mutex_unlock(&pctldev->mutex);
 
 	return result;
 }
-EXPORT_SYMBOL_GPL(pinctrl_gpio_can_use_line);
-
-bool pinctrl_gpio_can_use_line_new(struct gpio_chip *gc, unsigned int offset)
-{
-	return pinctrl_gpio_can_use_line(gc->base + offset);
-}
 EXPORT_SYMBOL_GPL(pinctrl_gpio_can_use_line_new);
 
 /* This function is deprecated and will be removed. Don't use. */

include/linux/pinctrl/consumer.h

@@ -26,7 +26,6 @@ struct pinctrl_state;
 #ifdef CONFIG_PINCTRL
 
 /* External interface to pin control */
-bool pinctrl_gpio_can_use_line(unsigned gpio);
 bool pinctrl_gpio_can_use_line_new(struct gpio_chip *gc, unsigned int offset);
 int pinctrl_gpio_request(unsigned gpio);
 int pinctrl_gpio_request_new(struct gpio_chip *gc, unsigned int offset);
@@ -73,11 +72,6 @@ static inline int pinctrl_pm_select_idle_state(struct device *dev)
 
 #else /* !CONFIG_PINCTRL */
 
-static inline bool pinctrl_gpio_can_use_line(unsigned gpio)
-{
-	return true;
-}
-
 static inline bool
 pinctrl_gpio_can_use_line_new(struct gpio_chip *gc, unsigned int offset)
 {