pinctrl: lynxpoint: Make use of for_each_requested_gpio()

Make use of for_each_requested_gpio() instead of home grown analogue.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

drivers/pinctrl/intel/pinctrl-lynxpoint.c

@@ -919,16 +919,17 @@ static int lp_gpio_runtime_resume(struct device *dev)
 static int lp_gpio_resume(struct device *dev)
 {
 	struct intel_pinctrl *lg = dev_get_drvdata(dev);
+	struct gpio_chip *chip = &lg->chip;
+	const char *dummy;
 	void __iomem *reg;
 	int i;
 
 	/* on some hardware suspend clears input sensing, re-enable it here */
-	for (i = 0; i < lg->chip.ngpio; i++) {
-		if (gpiochip_is_requested(&lg->chip, i) != NULL) {
-			reg = lp_gpio_reg(&lg->chip, i, LP_CONFIG2);
-			iowrite32(ioread32(reg) & ~GPINDIS_BIT, reg);
-		}
+	for_each_requested_gpio(chip, i, dummy) {
+		reg = lp_gpio_reg(chip, i, LP_CONFIG2);
+		iowrite32(ioread32(reg) & ~GPINDIS_BIT, reg);
 	}
+
 	return 0;
 }