[V2,5/8,media] exynos-gsc: Fixup clock management at ->remove()

Message ID 1421673760-2600-6-git-send-email-ulf.hansson@linaro.org
State New
Headers show

Commit Message

Ulf Hansson Jan. 19, 2015, 1:22 p.m.
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.

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(-)

Patch

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index e84bc35..5d3cfe8 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1104,12 +1104,15 @@  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;