[PATCH v4 07/79] media: exynos-gsc: don't resume at remove time
Mauro Carvalho Chehab
mchehab+huawei at kernel.org
Wed Apr 28 15:51:28 BST 2021
Calling pm_runtime_get_sync() at driver's removal time is not
needed, as this will resume PM runtime. Also, the PM runtime
code at pm_runtime_disable() already calls it, if it detects
the need.
So, change the logic in order to disable PM runtime earlier.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei at kernel.org>
---
drivers/media/platform/exynos-gsc/gsc-core.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 9f41c2e7097a..8b943075c503 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1210,18 +1210,19 @@ static int gsc_remove(struct platform_device *pdev)
struct gsc_dev *gsc = platform_get_drvdata(pdev);
int i;
- 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);
- for (i = 0; i < gsc->num_clocks; i++)
- clk_disable_unprepare(gsc->clock[i]);
- pm_runtime_put_noidle(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(dev))
+ for (i = 0; i < gsc->num_clocks; i++)
+ clk_disable_unprepare(gsc->clock[i]);
+
+ pm_runtime_set_suspended(dev);
+
dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
return 0;
}
--
2.30.2
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