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-rw-r--r--drivers/media/platform/omap3isp/ispvideo.c4
-rw-r--r--drivers/media/platform/qcom/camss/camss-video.c4
-rw-r--r--drivers/media/platform/rcar-vin/rcar-v4l2.c6
-rw-r--r--drivers/media/platform/sunxi/sun4i-csi/sun4i_v4l2.c6
-rw-r--r--drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c4
-rw-r--r--drivers/media/v4l2-core/v4l2-mc.c18
-rw-r--r--drivers/staging/media/imx/imx-media-capture.c4
-rw-r--r--drivers/staging/media/omap4iss/iss_video.c4
-rw-r--r--drivers/staging/media/rkisp1/rkisp1-capture.c9
9 files changed, 34 insertions, 25 deletions
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index 0ed250ffd95b..6f769c527fae 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -1311,7 +1311,7 @@ static int isp_video_open(struct file *file)
goto done;
}
- ret = v4l2_pipeline_pm_use(&video->video.entity, 1);
+ ret = v4l2_pipeline_pm_get(&video->video.entity);
if (ret < 0) {
omap3isp_put(video->isp);
goto done;
@@ -1363,7 +1363,7 @@ static int isp_video_release(struct file *file)
vb2_queue_release(&handle->queue);
mutex_unlock(&video->queue_lock);
- v4l2_pipeline_pm_use(&video->video.entity, 0);
+ v4l2_pipeline_pm_put(&video->video.entity);
/* Release the file handle. */
v4l2_fh_del(vfh);
diff --git a/drivers/media/platform/qcom/camss/camss-video.c b/drivers/media/platform/qcom/camss/camss-video.c
index c4220778ad47..cdbd6dba1122 100644
--- a/drivers/media/platform/qcom/camss/camss-video.c
+++ b/drivers/media/platform/qcom/camss/camss-video.c
@@ -745,7 +745,7 @@ static int video_open(struct file *file)
file->private_data = vfh;
- ret = v4l2_pipeline_pm_use(&vdev->entity, 1);
+ ret = v4l2_pipeline_pm_get(&vdev->entity);
if (ret < 0) {
dev_err(video->camss->dev, "Failed to power up pipeline: %d\n",
ret);
@@ -771,7 +771,7 @@ static int video_release(struct file *file)
vb2_fop_release(file);
- v4l2_pipeline_pm_use(&vdev->entity, 0);
+ v4l2_pipeline_pm_put(&vdev->entity);
file->private_data = NULL;
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index b12b3f88836a..5151a3cd8a6e 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -842,7 +842,7 @@ static int rvin_open(struct file *file)
goto err_unlock;
if (vin->info->use_mc)
- ret = v4l2_pipeline_pm_use(&vin->vdev.entity, 1);
+ ret = v4l2_pipeline_pm_get(&vin->vdev.entity);
else if (v4l2_fh_is_singular_file(file))
ret = rvin_power_parallel(vin, true);
@@ -858,7 +858,7 @@ static int rvin_open(struct file *file)
return 0;
err_power:
if (vin->info->use_mc)
- v4l2_pipeline_pm_use(&vin->vdev.entity, 0);
+ v4l2_pipeline_pm_put(&vin->vdev.entity);
else if (v4l2_fh_is_singular_file(file))
rvin_power_parallel(vin, false);
err_open:
@@ -886,7 +886,7 @@ static int rvin_release(struct file *file)
ret = _vb2_fop_release(file, NULL);
if (vin->info->use_mc) {
- v4l2_pipeline_pm_use(&vin->vdev.entity, 0);
+ v4l2_pipeline_pm_put(&vin->vdev.entity);
} else {
if (fh_singular)
rvin_power_parallel(vin, false);
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_v4l2.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_v4l2.c
index 5aee3fd875ad..1721e5aee9c6 100644
--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_v4l2.c
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_v4l2.c
@@ -214,7 +214,7 @@ static int sun4i_csi_open(struct file *file)
if (ret < 0)
goto err_pm_put;
- ret = v4l2_pipeline_pm_use(&csi->vdev.entity, 1);
+ ret = v4l2_pipeline_pm_get(&csi->vdev.entity);
if (ret)
goto err_pm_put;
@@ -227,7 +227,7 @@ static int sun4i_csi_open(struct file *file)
return 0;
err_pipeline_pm_put:
- v4l2_pipeline_pm_use(&csi->vdev.entity, 0);
+ v4l2_pipeline_pm_put(&csi->vdev.entity);
err_pm_put:
pm_runtime_put(csi->dev);
@@ -243,7 +243,7 @@ static int sun4i_csi_release(struct file *file)
mutex_lock(&csi->lock);
v4l2_fh_release(file);
- v4l2_pipeline_pm_use(&csi->vdev.entity, 0);
+ v4l2_pipeline_pm_put(&csi->vdev.entity);
pm_runtime_put(csi->dev);
mutex_unlock(&csi->lock);
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
index cb30efb5d1f1..d9648b2810b9 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
@@ -474,7 +474,7 @@ static int sun6i_video_open(struct file *file)
if (ret < 0)
goto unlock;
- ret = v4l2_pipeline_pm_use(&video->vdev.entity, 1);
+ ret = v4l2_pipeline_pm_get(&video->vdev.entity);
if (ret < 0)
goto fh_release;
@@ -507,7 +507,7 @@ static int sun6i_video_close(struct file *file)
_vb2_fop_release(file, NULL);
- v4l2_pipeline_pm_use(&video->vdev.entity, 0);
+ v4l2_pipeline_pm_put(&video->vdev.entity);
if (last_fh)
sun6i_csi_set_power(video->csi, false);
diff --git a/drivers/media/v4l2-core/v4l2-mc.c b/drivers/media/v4l2-core/v4l2-mc.c
index 014a2a97cadd..0fffdd3ce6a4 100644
--- a/drivers/media/v4l2-core/v4l2-mc.c
+++ b/drivers/media/v4l2-core/v4l2-mc.c
@@ -321,7 +321,7 @@ EXPORT_SYMBOL_GPL(v4l_vb2q_enable_media_source);
* use_count field stores the total number of users of all video device nodes
* in the pipeline.
*
- * The v4l2_pipeline_pm_use() function must be called in the open() and
+ * The v4l2_pipeline_pm_{get, put}() functions must be called in the open() and
* close() handlers of video device nodes. It increments or decrements the use
* count of all subdev entities in the pipeline.
*
@@ -423,7 +423,7 @@ static int pipeline_pm_power(struct media_entity *entity, int change,
return ret;
}
-int v4l2_pipeline_pm_use(struct media_entity *entity, int use)
+static int v4l2_pipeline_pm_use(struct media_entity *entity, unsigned int use)
{
struct media_device *mdev = entity->graph_obj.mdev;
int change = use ? 1 : -1;
@@ -444,7 +444,19 @@ int v4l2_pipeline_pm_use(struct media_entity *entity, int use)
return ret;
}
-EXPORT_SYMBOL_GPL(v4l2_pipeline_pm_use);
+
+int v4l2_pipeline_pm_get(struct media_entity *entity)
+{
+ return v4l2_pipeline_pm_use(entity, 1);
+}
+EXPORT_SYMBOL_GPL(v4l2_pipeline_pm_get);
+
+void v4l2_pipeline_pm_put(struct media_entity *entity)
+{
+ /* Powering off entities shouldn't fail. */
+ WARN_ON(v4l2_pipeline_pm_use(entity, 0));
+}
+EXPORT_SYMBOL_GPL(v4l2_pipeline_pm_put);
int v4l2_pipeline_link_notify(struct media_link *link, u32 flags,
unsigned int notification)
diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c
index 0dd6a2fafd89..d37b776ff86d 100644
--- a/drivers/staging/media/imx/imx-media-capture.c
+++ b/drivers/staging/media/imx/imx-media-capture.c
@@ -643,7 +643,7 @@ static int capture_open(struct file *file)
if (ret)
v4l2_err(priv->src_sd, "v4l2_fh_open failed\n");
- ret = v4l2_pipeline_pm_use(&vfd->entity, 1);
+ ret = v4l2_pipeline_pm_get(&vfd->entity);
if (ret)
v4l2_fh_release(file);
@@ -664,7 +664,7 @@ static int capture_release(struct file *file)
vq->owner = NULL;
}
- v4l2_pipeline_pm_use(&vfd->entity, 0);
+ v4l2_pipeline_pm_put(&vfd->entity);
v4l2_fh_release(file);
mutex_unlock(&priv->mutex);
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c
index bf7e999998c3..66975a37dc85 100644
--- a/drivers/staging/media/omap4iss/iss_video.c
+++ b/drivers/staging/media/omap4iss/iss_video.c
@@ -1111,7 +1111,7 @@ static int iss_video_open(struct file *file)
goto done;
}
- ret = v4l2_pipeline_pm_use(&video->video.entity, 1);
+ ret = v4l2_pipeline_pm_get(&video->video.entity);
if (ret < 0) {
omap4iss_put(video->iss);
goto done;
@@ -1160,7 +1160,7 @@ static int iss_video_release(struct file *file)
/* Disable streaming and free the buffers queue resources. */
iss_video_streamoff(file, vfh, video->type);
- v4l2_pipeline_pm_use(&video->video.entity, 0);
+ v4l2_pipeline_pm_put(&video->video.entity);
/* Release the videobuf2 queue */
vb2_queue_release(&handle->queue);
diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c
index 7cc2ace193d1..026470c7b43d 100644
--- a/drivers/staging/media/rkisp1/rkisp1-capture.c
+++ b/drivers/staging/media/rkisp1/rkisp1-capture.c
@@ -937,10 +937,7 @@ static void rkisp1_vb2_stop_streaming(struct vb2_queue *queue)
rkisp1_return_all_buffers(cap, VB2_BUF_STATE_ERROR);
- ret = v4l2_pipeline_pm_use(&node->vdev.entity, 0);
- if (ret)
- dev_err(rkisp1->dev, "pipeline close failed error:%d\n", ret);
-
+ v4l2_pipeline_pm_put(&node->vdev.entity);
ret = pm_runtime_put(rkisp1->dev);
if (ret)
dev_err(rkisp1->dev, "power down failed error:%d\n", ret);
@@ -999,7 +996,7 @@ rkisp1_vb2_start_streaming(struct vb2_queue *queue, unsigned int count)
dev_err(cap->rkisp1->dev, "power up failed %d\n", ret);
goto err_destroy_dummy;
}
- ret = v4l2_pipeline_pm_use(entity, 1);
+ ret = v4l2_pipeline_pm_get(entity);
if (ret) {
dev_err(cap->rkisp1->dev, "open cif pipeline failed %d\n", ret);
goto err_pipe_pm_put;
@@ -1025,7 +1022,7 @@ err_pipe_disable:
rkisp1_pipeline_sink_walk(entity, NULL, rkisp1_pipeline_disable_cb);
err_stop_stream:
rkisp1_stream_stop(cap);
- v4l2_pipeline_pm_use(entity, 0);
+ v4l2_pipeline_pm_put(entity);
err_pipe_pm_put:
pm_runtime_put(cap->rkisp1->dev);
err_destroy_dummy:
generated by cgit (git 2.34.1) at 2025-04-25 22:26:32 +0000