rtc: vt8500: convert to devm_rtc_allocate_device

This allows further improvement of the driver.

Link: https://lore.kernel.org/r/20191016201626.31309-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index c2ab394..0761478 100644 (file)
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -222,11 +222,12 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
        writel(VT8500_RTC_CR_ENABLE,
               vt8500_rtc->regbase + VT8500_RTC_CR);
 
-       vt8500_rtc->rtc = devm_rtc_device_register(&pdev->dev, "vt8500-rtc",
-                                             &vt8500_rtc_ops, THIS_MODULE);
+       vt8500_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
        if (IS_ERR(vt8500_rtc->rtc))
                return PTR_ERR(vt8500_rtc->rtc);
 
+       vt8500_rtc->rtc->ops = &vt8500_rtc_ops;
+
        ret = devm_request_irq(&pdev->dev, vt8500_rtc->irq_alarm,
                                vt8500_rtc_irq, 0, "rtc alarm", vt8500_rtc);
        if (ret < 0) {
@@ -235,7 +236,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
                return ret;
        }
 
-       return 0;
+       return rtc_register_device(vt8500_rtc->rtc);
 }
 
 static int vt8500_rtc_remove(struct platform_device *pdev)