pinctrl: mediatek: paris: don't double-check the GPIO number

GPIO core already makes sure we don't pass invalid GPIO numbers down to
the driver callbacks. Remove needless checks from the driver.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250425-gpiochip-set-rv-pinctrl-mediatek-v1-2-93e6a01855e7@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: Bartosz Golaszewski

drivers/pinctrl/mediatek/pinctrl-paris.c

@@ -840,9 +840,6 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
 	const struct mtk_pin_desc *desc;
 	int value, err;
 
-	if (gpio >= hw->soc->npins)
-		return -EINVAL;
-
 	/*
 	 * "Virtual" GPIOs are always and only used for interrupts
 	 * Since they are only used for interrupts, they are always inputs
@@ -868,9 +865,6 @@ static int mtk_gpio_get(struct gpio_chip *chip, unsigned int gpio)
 	const struct mtk_pin_desc *desc;
 	int value, err;
 
-	if (gpio >= hw->soc->npins)
-		return -EINVAL;
-
 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
 
 	err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DI, &value);
@@ -885,32 +879,19 @@ static void mtk_gpio_set(struct gpio_chip *chip, unsigned int gpio, int value)
 	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
 	const struct mtk_pin_desc *desc;
 
-	if (gpio >= hw->soc->npins)
-		return;
-
 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];
 
 	mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_DO, !!value);
 }
 
 static int mtk_gpio_direction_input(struct gpio_chip *chip, unsigned int gpio)
 {
-	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
-
-	if (gpio >= hw->soc->npins)
-		return -EINVAL;
-
 	return pinctrl_gpio_direction_input(chip, gpio);
 }
 
 static int mtk_gpio_direction_output(struct gpio_chip *chip, unsigned int gpio,
 				     int value)
 {
-	struct mtk_pinctrl *hw = gpiochip_get_data(chip);
-
-	if (gpio >= hw->soc->npins)
-		return -EINVAL;
-
 	mtk_gpio_set(chip, gpio, value);
 
 	return pinctrl_gpio_direction_output(chip, gpio);