[PATCH 3/4] rtc: sun6i: using devm_rtc_device_register helper

[Kefeng Wang]

Using devm_rtc_device_register() helper to simplify code.

Cc: Alessandro Zummo <a.zummo at towertech.it>
Cc: Alexandre Belloni <alexandre.belloni at free-electrons.com>
Cc: Maxime Ripard <maxime.ripard at free-electrons.com>
Cc: Chen-Yu Tsai <wens at csie.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
---
 drivers/rtc/rtc-sun6i.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index c169a2c..b22d5eb 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -404,8 +404,8 @@ static int sun6i_rtc_probe(struct platform_device *pdev)
 	/* disable alarm wakeup */
 	writel(0, chip->base + SUN6I_ALARM_CONFIG);
 
-	chip->rtc = rtc_device_register("rtc-sun6i", &pdev->dev,
-					&sun6i_rtc_ops, THIS_MODULE);
+	chip->rtc = devm_rtc_device_register(&pdev->dev, "rtc-sun6i",
+					     &sun6i_rtc_ops, THIS_MODULE);
 	if (IS_ERR(chip->rtc)) {
 		dev_err(&pdev->dev, "unable to register device\n");
 		return PTR_ERR(chip->rtc);
@@ -416,15 +416,6 @@ static int sun6i_rtc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int sun6i_rtc_remove(struct platform_device *pdev)
-{
-	struct sun6i_rtc_dev *chip = platform_get_drvdata(pdev);
-
-	rtc_device_unregister(chip->rtc);
-
-	return 0;
-}
-
 static const struct of_device_id sun6i_rtc_dt_ids[] = {
 	{ .compatible = "allwinner,sun6i-a31-rtc" },
 	{ /* sentinel */ },
@@ -433,7 +424,6 @@ static int sun6i_rtc_remove(struct platform_device *pdev)
 
 static struct platform_driver sun6i_rtc_driver = {
 	.probe		= sun6i_rtc_probe,
-	.remove		= sun6i_rtc_remove,
 	.driver		= {
 		.name		= "sun6i-rtc",
 		.of_match_table = sun6i_rtc_dt_ids,
-- 
1.7.12.4