Re: [PATCH 5/7] rtc:rtc-sa1100:Use devm_clk_get_enabled() helpers

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Le 21/08/2024 à 11:28, Liao Yuanhong a écrit :
Use devm_clk_get_enabled() instead of clk functions in rtc-sa1100.

Signed-off-by: Liao Yuanhong <liaoyuanhong@xxxxxxxx>
---
  drivers/rtc/rtc-sa1100.c | 10 ++--------
  1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 0b2cfa8ca05b..2e72daa6a152 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -177,15 +177,12 @@ int sa1100_rtc_init(struct platform_device *pdev, struct sa1100_rtc *info)
spin_lock_init(&info->lock); - info->clk = devm_clk_get(&pdev->dev, NULL);
+	info->clk = devm_clk_get_enabled(&pdev->dev, NULL);

Hi,

the clk field in struct sa1100_rtc could also be easily removed now.

CJ

  	if (IS_ERR(info->clk)) {
  		dev_err(&pdev->dev, "failed to find rtc clock source\n");
  		return PTR_ERR(info->clk);
  	}
- ret = clk_prepare_enable(info->clk);
-	if (ret)
-		return ret;
  	/*
  	 * According to the manual we should be able to let RTTR be zero
  	 * and then a default diviser for a 32.768KHz clock is used.
@@ -206,10 +203,8 @@ int sa1100_rtc_init(struct platform_device *pdev, struct sa1100_rtc *info)
  	info->rtc->range_max = U32_MAX;
ret = devm_rtc_register_device(info->rtc);
-	if (ret) {
-		clk_disable_unprepare(info->clk);
+	if (ret)
  		return ret;
-	}
/* Fix for a nasty initialization problem the in SA11xx RTSR register.
  	 * See also the comments in sa1100_rtc_interrupt().
@@ -305,7 +300,6 @@ static void sa1100_rtc_remove(struct platform_device *pdev)
  		spin_lock_irq(&info->lock);
  		writel_relaxed(0, info->rtsr);
  		spin_unlock_irq(&info->lock);
-		clk_disable_unprepare(info->clk);
  	}
  }





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