diff options
author | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-17 14:38:38 +0200 |
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committer | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-17 14:38:38 +0200 |
commit | 8bb9d758833ea1d0622277981b5225980ba0a42d (patch) | |
tree | 2281499b2970e563f522db7ebc9d03bebfda4bfa /drivers/staging/media/ipu3/ipu3-v4l2.c | |
parent | 0316046d152a1817bd0b4faff8e34c212a936a5e (diff) | |
parent | 3b59d4725be760cd276094079b4fbe7bd44e1464 (diff) |
Merge branch 'toradex_5.4-2.1.x-imx' into HEAD
Diffstat (limited to 'drivers/staging/media/ipu3/ipu3-v4l2.c')
-rw-r--r-- | drivers/staging/media/ipu3/ipu3-v4l2.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c index 3c7ad1eed434..c764cb55dc8d 100644 --- a/drivers/staging/media/ipu3/ipu3-v4l2.c +++ b/drivers/staging/media/ipu3/ipu3-v4l2.c @@ -367,8 +367,10 @@ static void imgu_vb2_buf_queue(struct vb2_buffer *vb) vb2_set_plane_payload(vb, 0, need_bytes); + mutex_lock(&imgu->streaming_lock); if (imgu->streaming) imgu_queue_buffers(imgu, false, node->pipe); + mutex_unlock(&imgu->streaming_lock); dev_dbg(&imgu->pci_dev->dev, "%s for pipe %u node %u", __func__, node->pipe, node->id); @@ -468,10 +470,13 @@ static int imgu_vb2_start_streaming(struct vb2_queue *vq, unsigned int count) dev_dbg(dev, "%s node name %s pipe %u id %u", __func__, node->name, node->pipe, node->id); + mutex_lock(&imgu->streaming_lock); if (imgu->streaming) { r = -EBUSY; + mutex_unlock(&imgu->streaming_lock); goto fail_return_bufs; } + mutex_unlock(&imgu->streaming_lock); if (!node->enabled) { dev_err(dev, "IMGU node is not enabled"); @@ -498,9 +503,11 @@ static int imgu_vb2_start_streaming(struct vb2_queue *vq, unsigned int count) /* Start streaming of the whole pipeline now */ dev_dbg(dev, "IMGU streaming is ready to start"); + mutex_lock(&imgu->streaming_lock); r = imgu_s_stream(imgu, true); if (!r) imgu->streaming = true; + mutex_unlock(&imgu->streaming_lock); return 0; @@ -532,6 +539,7 @@ static void imgu_vb2_stop_streaming(struct vb2_queue *vq) dev_err(&imgu->pci_dev->dev, "failed to stop subdev streaming\n"); + mutex_lock(&imgu->streaming_lock); /* Was this the first node with streaming disabled? */ if (imgu->streaming && imgu_all_nodes_streaming(imgu, node)) { /* Yes, really stop streaming now */ @@ -542,6 +550,8 @@ static void imgu_vb2_stop_streaming(struct vb2_queue *vq) } imgu_return_all_buffers(imgu, node, VB2_BUF_STATE_ERROR); + mutex_unlock(&imgu->streaming_lock); + media_pipeline_stop(&node->vdev.entity); } |