diff mbox series

[v9,07/18] media: platform: Improve the implementation of the system PM ops

Message ID 20200604072708.9468-8-xia.jiang@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add support for mt2701 JPEG ENC support | expand

Commit Message

Xia Jiang June 4, 2020, 7:26 a.m. UTC 
Add v4l2_m2m_suspend() function call in mtk_jpeg_suspend() to make sure
that the current frame is processed completely before suspend.
Add v4l2_m2m_resume() function call in mtk_jpeg_resume() to unblock the
driver from scheduling next frame.

Signed-off-by: Xia Jiang <xia.jiang@mediatek.com>
---
v9: use v4l2_m2m_suspend() and v4l2_m2m_resume() to improve the
    implemention of the system PM ops
---
 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index 7f74597262fc..49bdbf1c435f 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -1208,10 +1208,13 @@  static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev)
 static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
 {
 	int ret;
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
 
 	if (pm_runtime_suspended(dev))
 		return 0;
 
+	v4l2_m2m_suspend(jpeg->m2m_dev);
+
 	ret = mtk_jpeg_pm_suspend(dev);
 	return ret;
 }
@@ -1219,12 +1222,15 @@  static __maybe_unused int mtk_jpeg_suspend(struct device *dev)
 static __maybe_unused int mtk_jpeg_resume(struct device *dev)
 {
 	int ret;
+	struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev);
 
 	if (pm_runtime_suspended(dev))
 		return 0;
 
 	ret = mtk_jpeg_pm_resume(dev);
 
+	v4l2_m2m_resume(jpeg->m2m_dev);
+
 	return ret;
 }