linux-kernel - [PATCH 3/4] rtc: s3c: use unified functions for enable/disable of clk

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Date:	Tue, 11 Aug 2015 20:28:21 +0900
From:	Joonyoung Shim <jy0922.shim@...sung.com>
To:	rtc-linux@...glegroups.com
Cc:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	a.zummo@...ertech.it, alexandre.belloni@...e-electrons.com,
	cw00.choi@...sung.com, k.kozlowski@...sung.com,
	jy0922.shim@...sung.com
Subject: [PATCH 3/4] rtc: s3c: use unified functions for enable/disable of clk

The driver uses clk_prepare_enable()/clk_disable_unprepare() only in
probe only, elsewhere, use the unified functions for enable/disable of
clk, e.g. s3c_rtc_enable_clk() / s3c_rtc_disable_clk(), so it's better
to use them for consistency of code.

Signed-off-by: Joonyoung Shim <jy0922.shim@...sung.com>
---
 drivers/rtc/rtc-s3c.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 44b2921..abe2a6d 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -476,19 +476,21 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to find rtc clock\n");
 		return PTR_ERR(info->rtc_clk);
 	}
-	clk_prepare_enable(info->rtc_clk);
+	clk_prepare(info->rtc_clk);
 
 	if (info->data->needs_src_clk) {
 		info->rtc_src_clk = devm_clk_get(&pdev->dev, "rtc_src");
 		if (IS_ERR(info->rtc_src_clk)) {
 			dev_err(&pdev->dev,
 				"failed to find rtc source clock\n");
-			clk_disable_unprepare(info->rtc_clk);
+			clk_unprepare(info->rtc_clk);
 			return PTR_ERR(info->rtc_src_clk);
 		}
-		clk_prepare_enable(info->rtc_src_clk);
+		clk_prepare(info->rtc_src_clk);
 	}
 
+	s3c_rtc_enable_clk(info);
+
 	/* check to see if everything is setup correctly */
 	if (info->data->enable)
 		info->data->enable(info);
@@ -548,9 +550,11 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 	if (info->data->disable)
 		info->data->disable(info);
 
+	s3c_rtc_disable_clk(info);
+
 	if (info->data->needs_src_clk)
-		clk_disable_unprepare(info->rtc_src_clk);
-	clk_disable_unprepare(info->rtc_clk);
+		clk_unprepare(info->rtc_src_clk);
+	clk_unprepare(info->rtc_clk);
 
 	return ret;
 }
-- 
1.9.1

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