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[media] exynos-gsc: Fixup clock management at ->remove()

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To make sure the clock is fully gated in ->remove(), we first need to
to bring the device into full power by invoking pm_runtime_get_sync().

Then, let's both unprepare and disable the clock.

[mszyprow: rebased onto v4.9-rc4]

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Ulf Hansson 2016-11-09 12:23:54 -02:00 committed by Mauro Carvalho Chehab
parent 81aa8d141f
commit a006c04e62
1 changed files with 5 additions and 2 deletions
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7
drivers/media/platform/exynos-gsc/gsc-core.c
View file

@ -1095,12 +1095,15 @@ static int gsc_remove(struct platform_device *pdev)
{
struct gsc_dev *gsc = platform_get_drvdata(pdev);
pm_runtime_get_sync(&pdev->dev);
gsc_unregister_m2m_device(gsc);
v4l2_device_unregister(&gsc->v4l2_dev);
vb2_dma_contig_clear_max_seg_size(&pdev->dev);
pm_runtime_disable(&pdev->dev);
clk_unprepare(gsc->clock);
clk_disable_unprepare(gsc->clock);
pm_runtime_put_noidle(&pdev->dev);
dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
return 0;