[6/7,media] exynos-gsc: Fixup clock management at ->remove()

Message ID 1413270940-4378-7-git-send-email-ulf.hansson@linaro.org
State New
Headers show

Commit Message

Ulf Hansson Oct. 14, 2014, 7:15 a.m.
We want to make sure that the clock is fully gated after ->remove(). To
do this, we need to bring the device into full power and not only
unprepare the clock, but also disable it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/media/platform/exynos-gsc/gsc-core.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

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diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 1b9f3d7..e48aefa 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1139,12 +1139,15 @@  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_cleanup_ctx(gsc->alloc_ctx);
+	clk_disable_unprepare(gsc->clock);
+
 	pm_runtime_disable(&pdev->dev);
-	clk_unprepare(gsc->clock);
+	pm_runtime_put_noidle(&pdev->dev);
 
 	dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
 	return 0;