linux-kernel - [PATCH 1/4] rtc: davinci: convert to devm_rtc_allocate

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Date:   Thu,  5 Mar 2020 22:50:19 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] rtc: davinci: convert to devm_rtc_allocate_device

This allows further improvement of the driver. Also remove the unnecessary
error string as the core will already display error messages.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-davinci.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c
index 390b7351e0fe..d620d147c604 100644
--- a/drivers/rtc/rtc-davinci.c
+++ b/drivers/rtc/rtc-davinci.c
@@ -485,13 +485,11 @@ static int __init davinci_rtc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, davinci_rtc);
 
-	davinci_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
-				    &davinci_rtc_ops, THIS_MODULE);
-	if (IS_ERR(davinci_rtc->rtc)) {
-		dev_err(dev, "unable to register RTC device, err %d\n",
-				ret);
+	davinci_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(davinci_rtc->rtc))
 		return PTR_ERR(davinci_rtc->rtc);
-	}
+
+	davinci_rtc->rtc->ops = &davinci_rtc_ops;
 
 	rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, PRTCIF_INTFLG);
 	rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);
@@ -516,7 +514,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 0);
 
-	return 0;
+	return rtc_register_device(davinci_rtc->rtc);
 }
 
 static int __exit davinci_rtc_remove(struct platform_device *pdev)
-- 
2.24.1