gpio: zynq: simplifly getting drvdata

Get the driver data directly by dev_get_drvdata.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-zynq.c

@@ -665,8 +665,7 @@ static void zynq_gpio_restore_context(struct zynq_gpio *gpio)
 
 static int __maybe_unused zynq_gpio_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct zynq_gpio *gpio = platform_get_drvdata(pdev);
+	struct zynq_gpio *gpio = dev_get_drvdata(dev);
 	struct irq_data *data = irq_get_irq_data(gpio->irq);
 
 	if (!irqd_is_wakeup_set(data)) {
@@ -679,8 +678,7 @@ static int __maybe_unused zynq_gpio_suspend(struct device *dev)
 
 static int __maybe_unused zynq_gpio_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct zynq_gpio *gpio = platform_get_drvdata(pdev);
+	struct zynq_gpio *gpio = dev_get_drvdata(dev);
 	struct irq_data *data = irq_get_irq_data(gpio->irq);
 	int ret;