diff options
Diffstat (limited to 'drivers/media/video/atmel-isi.c')
| -rw-r--r-- | drivers/media/video/atmel-isi.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/media/video/atmel-isi.c b/drivers/media/video/atmel-isi.c index 7b89f00501b8..774715d2f84f 100644 --- a/drivers/media/video/atmel-isi.c +++ b/drivers/media/video/atmel-isi.c @@ -249,7 +249,7 @@ static int atmel_isi_wait_status(struct atmel_isi *isi, int wait_reset) Videobuf operations ------------------------------------------------------------------*/ static int queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, - unsigned int *nplanes, unsigned long sizes[], + unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) { struct soc_camera_device *icd = soc_camera_from_vb2q(vq); @@ -341,7 +341,7 @@ static int buffer_prepare(struct vb2_buffer *vb) /* Initialize the dma descriptor */ desc->p_fbd->fb_address = - vb2_dma_contig_plane_paddr(vb, 0); + vb2_dma_contig_plane_dma_addr(vb, 0); desc->p_fbd->next_fbd_address = 0; set_dma_ctrl(desc->p_fbd, ISI_DMA_CTRL_WB); @@ -404,12 +404,13 @@ static void buffer_queue(struct vb2_buffer *vb) if (isi->active == NULL) { isi->active = buf; - start_dma(isi, buf); + if (vb2_is_streaming(vb->vb2_queue)) + start_dma(isi, buf); } spin_unlock_irqrestore(&isi->lock, flags); } -static int start_streaming(struct vb2_queue *vq) +static int start_streaming(struct vb2_queue *vq, unsigned int count) { struct soc_camera_device *icd = soc_camera_from_vb2q(vq); struct soc_camera_host *ici = to_soc_camera_host(icd->parent); @@ -431,17 +432,26 @@ static int start_streaming(struct vb2_queue *vq) ret = wait_event_interruptible(isi->vsync_wq, isi->state != ISI_STATE_IDLE); if (ret) - return ret; + goto err; - if (isi->state != ISI_STATE_READY) - return -EIO; + if (isi->state != ISI_STATE_READY) { + ret = -EIO; + goto err; + } spin_lock_irq(&isi->lock); isi->state = ISI_STATE_WAIT_SOF; isi_writel(isi, ISI_INTDIS, ISI_SR_VSYNC); + if (count) + start_dma(isi, isi->active); spin_unlock_irq(&isi->lock); return 0; +err: + isi->active = NULL; + isi->sequence = 0; + INIT_LIST_HEAD(&isi->video_buffer_list); + return ret; } /* abort streaming and wait for last buffer */ |