pwm: bcm-kona: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-bcm-kona.c

@@ -259,7 +259,6 @@ static const struct pwm_ops kona_pwm_ops = {
 static int kona_pwmc_probe(struct platform_device *pdev)
 {
 	struct kona_pwmc *kp;
-	struct resource *res;
 	unsigned int chan;
 	unsigned int value = 0;
 	int ret = 0;
@@ -277,8 +276,7 @@ static int kona_pwmc_probe(struct platform_device *pdev)
 	kp->chip.of_xlate = of_pwm_xlate_with_flags;
 	kp->chip.of_pwm_n_cells = 3;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	kp->base = devm_ioremap_resource(&pdev->dev, res);
+	kp->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(kp->base))
 		return PTR_ERR(kp->base);