[PATCH v2 RFT] media: exynos4-is: add missed clk_disable_unprepare in remove

[PATCH v2 RFT] media: exynos4-is: add missed clk_disable_unprepare in remove

[Chuhong Yuan]

This driver forgets to disable and unprepare clock when remove.
Add a call to clk_disable_unprepare() to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
Changes in v2:
  - Add a check of pm_runtime_enable() to match enable in probe.
  - Add RFT tag.

 drivers/media/platform/exynos4-is/fimc-lite.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
index e87c6a09205b..17de14fbba31 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -1614,6 +1614,9 @@ static int fimc_lite_remove(struct platform_device *pdev)
 	struct fimc_lite *fimc = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
 
+	if (!pm_runtime_enabled(dev))
+		clk_disable_unprepare(fimc->clock);
+
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
 	fimc_lite_unregister_capture_subdev(fimc);
-- 
2.24.0


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Re: [PATCH v2 RFT] media: exynos4-is: add missed clk_disable_unprepare in remove

[Hans Verkuil]

Anyone able/willing to test this patch?

Regards,

	Hans

On 12/19/19 8:48 AM, Chuhong Yuan wrote:
> This driver forgets to disable and unprepare clock when remove.
> Add a call to clk_disable_unprepare() to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
> ---
> Changes in v2:
>   - Add a check of pm_runtime_enable() to match enable in probe.
>   - Add RFT tag.
> 
>  drivers/media/platform/exynos4-is/fimc-lite.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c
> index e87c6a09205b..17de14fbba31 100644
> --- a/drivers/media/platform/exynos4-is/fimc-lite.c
> +++ b/drivers/media/platform/exynos4-is/fimc-lite.c
> @@ -1614,6 +1614,9 @@ static int fimc_lite_remove(struct platform_device *pdev)
>  	struct fimc_lite *fimc = platform_get_drvdata(pdev);
>  	struct device *dev = &pdev->dev;
>  
> +	if (!pm_runtime_enabled(dev))
> +		clk_disable_unprepare(fimc->clock);
> +
>  	pm_runtime_disable(dev);
>  	pm_runtime_set_suspended(dev);
>  	fimc_lite_unregister_capture_subdev(fimc);
> 


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Re: [PATCH v2 RFT] media: exynos4-is: add missed clk_disable_unprepare in remove

[Krzysztof Kozlowski]

On Fri, Jan 10, 2020 at 02:40:21PM +0100, Hans Verkuil wrote:
> Anyone able/willing to test this patch?

I do not have the hardware with FIMC/camera so I cannot provide testing.
However it looks good, so I propose to just take it:
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof


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