diff mbox series

[v3,09/20] media: i2c: ov4689: Use runtime PM autosuspend

Message ID 20240229165333.227484-10-mike.rudenko@gmail.com (mailing list archive)
State New, archived
Headers show
Series Omnivision OV4689 refactoring and improvements | expand

Commit Message

Mikhail Rudenko Feb. 29, 2024, 4:53 p.m. UTC
Use runtime PM autosuspend to avoid powering off the sensor during
fast stop-reconfigure-restart cycles.

Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>
---
 drivers/media/i2c/ov4689.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

Comments

Laurent Pinchart March 4, 2024, 8:45 p.m. UTC | #1
Hi Mikhail,

Thank you for the patch.

On Thu, Feb 29, 2024 at 07:53:22PM +0300, Mikhail Rudenko wrote:
> Use runtime PM autosuspend to avoid powering off the sensor during
> fast stop-reconfigure-restart cycles.
> 
> Signed-off-by: Mikhail Rudenko <mike.rudenko@gmail.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/media/i2c/ov4689.c | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/i2c/ov4689.c b/drivers/media/i2c/ov4689.c
> index 0e0e694510aa..2354397ab34c 100644
> --- a/drivers/media/i2c/ov4689.c
> +++ b/drivers/media/i2c/ov4689.c
> @@ -426,7 +426,8 @@ static int ov4689_s_stream(struct v4l2_subdev *sd, int on)
>  	} else {
>  		cci_write(ov4689->regmap, OV4689_REG_CTRL_MODE,
>  			  OV4689_MODE_SW_STANDBY, NULL);
> -		pm_runtime_put(dev);
> +		pm_runtime_mark_last_busy(dev);
> +		pm_runtime_put_autosuspend(dev);
>  	}
>  
>  unlock_and_return:
> @@ -606,7 +607,8 @@ static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl)
>  		break;
>  	}
>  
> -	pm_runtime_put(dev);
> +	pm_runtime_mark_last_busy(dev);
> +	pm_runtime_put_autosuspend(dev);
>  
>  	return ret;
>  }
> @@ -876,8 +878,10 @@ static int ov4689_probe(struct i2c_client *client)
>  	}
>  
>  	pm_runtime_set_active(dev);
> +	pm_runtime_get_noresume(dev);
>  	pm_runtime_enable(dev);
> -	pm_runtime_idle(dev);
> +	pm_runtime_set_autosuspend_delay(dev, 1000);
> +	pm_runtime_use_autosuspend(dev);
>  
>  	ret = v4l2_async_register_subdev_sensor(sd);
>  	if (ret) {
> @@ -885,11 +889,14 @@ static int ov4689_probe(struct i2c_client *client)
>  		goto err_clean_subdev_pm;
>  	}
>  
> +	pm_runtime_mark_last_busy(dev);
> +	pm_runtime_put_autosuspend(dev);
> +
>  	return 0;
>  
>  err_clean_subdev_pm:
>  	pm_runtime_disable(dev);
> -	pm_runtime_set_suspended(dev);
> +	pm_runtime_put_noidle(dev);
>  	v4l2_subdev_cleanup(sd);
>  err_clean_entity:
>  	media_entity_cleanup(&sd->entity);
diff mbox series

Patch

diff --git a/drivers/media/i2c/ov4689.c b/drivers/media/i2c/ov4689.c
index 0e0e694510aa..2354397ab34c 100644
--- a/drivers/media/i2c/ov4689.c
+++ b/drivers/media/i2c/ov4689.c
@@ -426,7 +426,8 @@  static int ov4689_s_stream(struct v4l2_subdev *sd, int on)
 	} else {
 		cci_write(ov4689->regmap, OV4689_REG_CTRL_MODE,
 			  OV4689_MODE_SW_STANDBY, NULL);
-		pm_runtime_put(dev);
+		pm_runtime_mark_last_busy(dev);
+		pm_runtime_put_autosuspend(dev);
 	}
 
 unlock_and_return:
@@ -606,7 +607,8 @@  static int ov4689_set_ctrl(struct v4l2_ctrl *ctrl)
 		break;
 	}
 
-	pm_runtime_put(dev);
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
 
 	return ret;
 }
@@ -876,8 +878,10 @@  static int ov4689_probe(struct i2c_client *client)
 	}
 
 	pm_runtime_set_active(dev);
+	pm_runtime_get_noresume(dev);
 	pm_runtime_enable(dev);
-	pm_runtime_idle(dev);
+	pm_runtime_set_autosuspend_delay(dev, 1000);
+	pm_runtime_use_autosuspend(dev);
 
 	ret = v4l2_async_register_subdev_sensor(sd);
 	if (ret) {
@@ -885,11 +889,14 @@  static int ov4689_probe(struct i2c_client *client)
 		goto err_clean_subdev_pm;
 	}
 
+	pm_runtime_mark_last_busy(dev);
+	pm_runtime_put_autosuspend(dev);
+
 	return 0;
 
 err_clean_subdev_pm:
 	pm_runtime_disable(dev);
-	pm_runtime_set_suspended(dev);
+	pm_runtime_put_noidle(dev);
 	v4l2_subdev_cleanup(sd);
 err_clean_entity:
 	media_entity_cleanup(&sd->entity);