pwm: meson: 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: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-meson.c

@@ -537,15 +537,13 @@ static int meson_pwm_init_channels(struct meson_pwm *meson)
 static int meson_pwm_probe(struct platform_device *pdev)
 {
 	struct meson_pwm *meson;
-	struct resource *regs;
 	int err;
 
 	meson = devm_kzalloc(&pdev->dev, sizeof(*meson), GFP_KERNEL);
 	if (!meson)
 		return -ENOMEM;
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	meson->base = devm_ioremap_resource(&pdev->dev, regs);
+	meson->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(meson->base))
 		return PTR_ERR(meson->base);