linux-kernel - [PATCH 1/3] rtc: sirfsoc: convert to devm_rtc_allocate

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Date:   Thu,  5 Mar 2020 17:04:50 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Barry Song <baohua@...nel.org>
Cc:     linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] rtc: sirfsoc: 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-sirfsoc.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c
index a2c9c55667cd..b2e72597eee8 100644
--- a/drivers/rtc/rtc-sirfsoc.c
+++ b/drivers/rtc/rtc-sirfsoc.c
@@ -341,28 +341,21 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
 	rtcdrv->overflow_rtc =
 		sirfsoc_rtc_readl(rtcdrv, RTC_SW_VALUE);
 
-	rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
-			&sirfsoc_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtcdrv->rtc)) {
-		err = PTR_ERR(rtcdrv->rtc);
-		dev_err(&pdev->dev, "can't register RTC device\n");
-		return err;
-	}
+	rtcdrv->rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(rtcdrv->rtc))
+		return PTR_ERR(rtcdrv->rtc);
+
+	rtcdrv->rtc->ops = &sirfsoc_rtc_ops;
 
 	rtcdrv->irq = platform_get_irq(pdev, 0);
-	err = devm_request_irq(
-			&pdev->dev,
-			rtcdrv->irq,
-			sirfsoc_rtc_irq_handler,
-			IRQF_SHARED,
-			pdev->name,
-			rtcdrv);
+	err = devm_request_irq(&pdev->dev, rtcdrv->irq, sirfsoc_rtc_irq_handler,
+			       IRQF_SHARED, pdev->name, rtcdrv);
 	if (err) {
 		dev_err(&pdev->dev, "Unable to register for the SiRF SOC RTC IRQ\n");
 		return err;
 	}
 
-	return 0;
+	return rtc_register_device(rtcdrv->rtc);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
2.24.1