linux-kernel - [PATCH 1/4] rtc: pcf2123: convert to devm_rtc_allocate

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Date:   Thu, 20 Jun 2019 20:34:30 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     linux-rtc@...r.kernel.org
Cc:     Dylan Howey <Dylan.Howey@...nantco.com>,
        linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 1/4] rtc: pcf2123: convert to devm_rtc_allocate_device

This allows further improvement of the driver.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-pcf2123.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index e8100af789ef..29e09ff57f89 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -411,14 +411,9 @@ static int pcf2123_probe(struct spi_device *spi)
 			(spi->max_speed_hz + 500) / 1000);
 
 	/* Finalize the initialization */
-	rtc = devm_rtc_device_register(&spi->dev, pcf2123_driver.driver.name,
-			&pcf2123_rtc_ops, THIS_MODULE);
-
-	if (IS_ERR(rtc)) {
-		dev_err(&spi->dev, "failed to register.\n");
-		ret = PTR_ERR(rtc);
-		goto kfree_exit;
-	}
+	rtc = devm_rtc_allocate_device(&spi->dev);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 
 	pdata->rtc = rtc;
 
@@ -438,7 +433,18 @@ static int pcf2123_probe(struct spi_device *spi)
 	 * support to this driver to generate interrupts more than once
 	 * per minute.
 	 */
-	pdata->rtc->uie_unsupported = 1;
+	rtc->uie_unsupported = 1;
+	rtc->ops = &pcf2123_rtc_ops;
+
+	ret = rtc_register_device(rtc);
+	if (ret)
+		return ret;
+
+	if (IS_ERR(rtc)) {
+		dev_err(&spi->dev, "failed to register.\n");
+		ret = PTR_ERR(rtc);
+		goto kfree_exit;
+	}
 
 	return 0;
 
-- 
2.21.0