rtc: ftrtc010: switch to devm_rtc_allocate_device

Switch to devm_rtc_allocate_device/rtc_register_device. This allow or
further improvement and simplifies ftrtc010_rtc_remove().

Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c
index af8d6be..165d0b6 100644 (file)
--- a/drivers/rtc/rtc-ftrtc010.c
+++ b/drivers/rtc/rtc-ftrtc010.c
@@ -166,14 +166,18 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev)
        if (!rtc->rtc_base)
                return -ENOMEM;
 
+       rtc->rtc_dev = devm_rtc_allocate_device(dev);
+       if (IS_ERR(rtc->rtc_dev))
+               return PTR_ERR(rtc->rtc_dev);
+
+       rtc->rtc_dev->ops = &ftrtc010_rtc_ops;
+
        ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
                               IRQF_SHARED, pdev->name, dev);
        if (unlikely(ret))
                return ret;
 
-       rtc->rtc_dev = rtc_device_register(pdev->name, dev,
-                                          &ftrtc010_rtc_ops, THIS_MODULE);
-       return PTR_ERR_OR_ZERO(rtc->rtc_dev);
+       return rtc_register_device(rtc->rtc_dev);
 }
 
 static int ftrtc010_rtc_remove(struct platform_device *pdev)
@@ -184,7 +188,6 @@ static int ftrtc010_rtc_remove(struct platform_device *pdev)
                clk_disable_unprepare(rtc->extclk);
        if (!IS_ERR(rtc->pclk))
                clk_disable_unprepare(rtc->pclk);
-       rtc_device_unregister(rtc->rtc_dev);
 
        return 0;
 }