rtc: cpcap: convert to devm_rtc_allocate_device

This allows further improvement of the driver.

Link: https://lore.kernel.org/r/20200306015703.42101-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-cpcap.c b/drivers/rtc/rtc-cpcap.c
index 6a3b70fd7e1fcbb126f245e966961f2b1d133850..35f0717661b3339e9b58733cb566bf8b6e3cfe2c 100644 (file)
--- a/drivers/rtc/rtc-cpcap.c
+++ b/drivers/rtc/rtc-cpcap.c
@@ -256,12 +256,12 @@ static int cpcap_rtc_probe(struct platform_device *pdev)
                return -ENODEV;
 
        platform_set_drvdata(pdev, rtc);
-       rtc->rtc_dev = devm_rtc_device_register(dev, "cpcap_rtc",
-                                               &cpcap_rtc_ops, THIS_MODULE);
-
+       rtc->rtc_dev = devm_rtc_allocate_device(dev);
        if (IS_ERR(rtc->rtc_dev))
                return PTR_ERR(rtc->rtc_dev);
 
+       rtc->rtc_dev->ops = &cpcap_rtc_ops;
+
        err = cpcap_get_vendor(dev, rtc->regmap, &rtc->vendor);
        if (err)
                return err;
@@ -298,7 +298,7 @@ static int cpcap_rtc_probe(struct platform_device *pdev)
                /* ignore error and continue without wakeup support */
        }
 
-       return 0;
+       return rtc_register_device(rtc->rtc_dev);
 }
 
 static const struct of_device_id cpcap_rtc_of_match[] = {