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[v3,2/2] media: i2c: imx219: Enable runtime PM autosuspend

Message ID 20250305142117.29182-3-tarang.raval@siliconsignals.io (mailing list archive)
State New
Headers show
Series media: i2c: imx219: Minor improvements for runtime PM and stream handling | expand

Commit Message

Tarang Raval March 5, 2025, 2:21 p.m. UTC 
Use pm_runtime_put_autosuspend() instead of pm_runtime_put()
to allow autosuspend. Set a 1000ms autosuspend delay in
imx219_probe() to improve power efficiency.

Signed-off-by: Tarang Raval <tarang.raval@siliconsignals.io>
---
 drivers/media/i2c/imx219.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 12f1aa8824fe..fb18fdc0a834 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -779,7 +779,8 @@  static int imx219_enable_streams(struct v4l2_subdev *sd,
 	return 0;
 
 err_rpm_put:
-	pm_runtime_put(&client->dev);
+	pm_runtime_mark_last_busy(&client->dev);
+	pm_runtime_put_autosuspend(&client->dev);
 	return ret;
 }
 
@@ -803,7 +804,8 @@  static int imx219_disable_streams(struct v4l2_subdev *sd,
 	__v4l2_ctrl_grab(imx219->vflip, false);
 	__v4l2_ctrl_grab(imx219->hflip, false);
 
-	pm_runtime_put(&client->dev);
+	pm_runtime_mark_last_busy(&client->dev);
+	pm_runtime_put_autosuspend(&client->dev);
 
 	return ret;
 }
@@ -1275,6 +1277,8 @@  static int imx219_probe(struct i2c_client *client)
 	}
 
 	pm_runtime_idle(dev);
+	pm_runtime_set_autosuspend_delay(dev, 1000);
+	pm_runtime_use_autosuspend(dev);
 
 	return 0;