Merge tag 'media/v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull second set of media updates from Mauro Carvalho Chehab:

 - Move drivers for really old legacy hardware to staging.  Those are
   using obsolete media kAPIs and are for hardware that nobody uses for
   years.  Simply not worth porting them to the new kAPIs.  Of course,
   if anyone pops up to fix, we can move them back from there

 - While not too late, do some API fixups at the new colorspace API,
   added for v3.19

 - Some improvements for rcar_vin driver

 - Some fixups at cx88 and vivid drivers

 - Some Documentation fixups

* tag 'media/v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] bq/c-qcam, w9966, pms: move to staging in preparation for removal
  [media] tlg2300: move to staging in preparation for removal
  [media] vino/saa7191: move to staging in preparation for removal
  [media] MAINTAINERS: vivi -> vivid
  [media] cx88: remove leftover start_video_dma() call
  [media] cx88: add missing alloc_ctx support
  [media] v4l2-ioctl: WARN_ON if querycap didn't fill device_caps
  [media] vivid: fix CROP_BOUNDS typo for video output
  [media] DocBook media: update version number and document changes
  [media] vivid.txt: document new controls
  [media] DocBook media: add missing ycbcr_enc and quantization fields
  [media] v4l2-mediabus.h: use two __u16 instead of two __u32
  [media] rcar_vin: Fix interrupt enable in progressive
  [media] rcar_vin: Enable VSYNC field toggle mode
  [media] rcar_vin: Add scaling support
  [media] rcar_vin: Add DT support for r8a7793 and r8a7794 SoCs
  [media] rcar_vin: Add YUYV capture format support

6 files changed, 21 insertions, 27 deletions

diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index 4160ca4e5413..d3c79d964f2c 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -647,6 +647,7 @@ static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
 	dev->ts_packet_size  = 188 * 4;
 	dev->ts_packet_count  = 32;
 	sizes[0] = dev->ts_packet_size * dev->ts_packet_count;
+	alloc_ctxs[0] = dev->alloc_ctx;
 	return 0;
 }
 
@@ -662,14 +663,11 @@ static void buffer_finish(struct vb2_buffer *vb)
 {
 	struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
 	struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
-	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 	struct cx88_riscmem *risc = &buf->risc;
 
 	if (risc->cpu)
 		pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
 	memset(risc, 0, sizeof(*risc));
-
-	dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
 }
 
 static void buffer_queue(struct vb2_buffer *vb)
diff --git a/drivers/media/pci/cx88/cx88-dvb.c b/drivers/media/pci/cx88/cx88-dvb.c
index c344bfd0b896..5780e2f013b4 100644
--- a/drivers/media/pci/cx88/cx88-dvb.c
+++ b/drivers/media/pci/cx88/cx88-dvb.c
@@ -92,6 +92,7 @@ static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
 	dev->ts_packet_size  = 188 * 4;
 	dev->ts_packet_count = dvb_buf_tscnt;
 	sizes[0] = dev->ts_packet_size * dev->ts_packet_count;
+	alloc_ctxs[0] = dev->alloc_ctx;
 	*num_buffers = dvb_buf_tscnt;
 	return 0;
 }
@@ -108,14 +109,11 @@ static void buffer_finish(struct vb2_buffer *vb)
 {
 	struct cx8802_dev *dev = vb->vb2_queue->drv_priv;
 	struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
-	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 	struct cx88_riscmem *risc = &buf->risc;
 
 	if (risc->cpu)
 		pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
 	memset(risc, 0, sizeof(*risc));
-
-	dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
 }
 
 static void buffer_queue(struct vb2_buffer *vb)
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index f181a3a10389..1c1f69e6b0b9 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -235,10 +235,6 @@ int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
 		return -EINVAL;
 	vb2_set_plane_payload(&buf->vb, 0, size);
 
-	rc = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
-	if (!rc)
-		return -EIO;
-
 	rc = cx88_risc_databuffer(dev->pci, risc, sgt->sgl,
 			     dev->ts_packet_size, dev->ts_packet_count, 0);
 	if (rc) {
@@ -733,6 +729,11 @@ static int cx8802_probe(struct pci_dev *pci_dev,
 	if (NULL == dev)
 		goto fail_core;
 	dev->pci = pci_dev;
+	dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
+	if (IS_ERR(dev->alloc_ctx)) {
+		err = PTR_ERR(dev->alloc_ctx);
+		goto fail_core;
+	}
 	dev->core = core;
 
 	/* Maintain a reference so cx88-video can query the 8802 device. */
@@ -752,6 +753,7 @@ static int cx8802_probe(struct pci_dev *pci_dev,
 	return 0;
 
  fail_free:
+	vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
 	kfree(dev);
  fail_core:
 	core->dvbdev = NULL;
@@ -798,6 +800,7 @@ static void cx8802_remove(struct pci_dev *pci_dev)
 	/* common */
 	cx8802_fini_common(dev);
 	cx88_core_put(dev->core,dev->pci);
+	vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
 	kfree(dev);
 }
 
diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
index 6ab6e27648f6..32eb7fdb875e 100644
--- a/drivers/media/pci/cx88/cx88-vbi.c
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -120,6 +120,7 @@ static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
 		sizes[0] = VBI_LINE_NTSC_COUNT * VBI_LINE_LENGTH * 2;
 	else
 		sizes[0] = VBI_LINE_PAL_COUNT * VBI_LINE_LENGTH * 2;
+	alloc_ctxs[0] = dev->alloc_ctx;
 	return 0;
 }
 
@@ -131,7 +132,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
 	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 	unsigned int lines;
 	unsigned int size;
-	int rc;
 
 	if (dev->core->tvnorm & V4L2_STD_525_60)
 		lines = VBI_LINE_NTSC_COUNT;
@@ -142,10 +142,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
 		return -EINVAL;
 	vb2_set_plane_payload(vb, 0, size);
 
-	rc = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
-	if (!rc)
-		return -EIO;
-
 	cx88_risc_buffer(dev->pci, &buf->risc, sgt->sgl,
 			 0, VBI_LINE_LENGTH * lines,
 			 VBI_LINE_LENGTH, 0,
@@ -157,14 +153,11 @@ static void buffer_finish(struct vb2_buffer *vb)
 {
 	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
 	struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
-	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 	struct cx88_riscmem *risc = &buf->risc;
 
 	if (risc->cpu)
 		pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
 	memset(risc, 0, sizeof(*risc));
-
-	dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
 }
 
 static void buffer_queue(struct vb2_buffer *vb)
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index a64ae31ae142..860c98fc72c7 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -440,6 +440,7 @@ static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
 
 	*num_planes = 1;
 	sizes[0] = (dev->fmt->depth * core->width * core->height) >> 3;
+	alloc_ctxs[0] = dev->alloc_ctx;
 	return 0;
 }
 
@@ -449,7 +450,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
 	struct cx88_core *core = dev->core;
 	struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
 	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
-	int rc;
 
 	buf->bpl = core->width * dev->fmt->depth >> 3;
 
@@ -457,10 +457,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
 		return -EINVAL;
 	vb2_set_plane_payload(vb, 0, core->height * buf->bpl);
 
-	rc = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
-	if (!rc)
-		return -EIO;
-
 	switch (core->field) {
 	case V4L2_FIELD_TOP:
 		cx88_risc_buffer(dev->pci, &buf->risc,
@@ -505,14 +501,11 @@ static void buffer_finish(struct vb2_buffer *vb)
 {
 	struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
 	struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
-	struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
 	struct cx88_riscmem *risc = &buf->risc;
 
 	if (risc->cpu)
 		pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
 	memset(risc, 0, sizeof(*risc));
-
-	dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
 }
 
 static void buffer_queue(struct vb2_buffer *vb)
@@ -530,7 +523,6 @@ static void buffer_queue(struct vb2_buffer *vb)
 
 	if (list_empty(&q->active)) {
 		list_add_tail(&buf->list, &q->active);
-		start_video_dma(dev, q, buf);
 		buf->count    = q->count++;
 		dprintk(2,"[%p/%d] buffer_queue - first active\n",
 			buf, buf->vb.v4l2_buf.index);
@@ -1345,6 +1337,12 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 		err = -EIO;
 		goto fail_core;
 	}
+	dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
+	if (IS_ERR(dev->alloc_ctx)) {
+		err = PTR_ERR(dev->alloc_ctx);
+		goto fail_core;
+	}
+
 
 	/* initialize driver struct */
 	spin_lock_init(&dev->slock);
@@ -1549,6 +1547,7 @@ fail_unreg:
 	free_irq(pci_dev->irq, dev);
 	mutex_unlock(&core->lock);
 fail_core:
+	vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
 	core->v4ldev = NULL;
 	cx88_core_put(core,dev->pci);
 fail_free:
@@ -1582,6 +1581,7 @@ static void cx8800_finidev(struct pci_dev *pci_dev)
 
 	/* free memory */
 	cx88_core_put(core,dev->pci);
+	vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
 	kfree(dev);
 }
 
diff --git a/drivers/media/pci/cx88/cx88.h b/drivers/media/pci/cx88/cx88.h
index 3b0ae754f165..7748ca9abb09 100644
--- a/drivers/media/pci/cx88/cx88.h
+++ b/drivers/media/pci/cx88/cx88.h
@@ -485,6 +485,7 @@ struct cx8800_dev {
 	/* pci i/o */
 	struct pci_dev             *pci;
 	unsigned char              pci_rev,pci_lat;
+	void			   *alloc_ctx;
 
 	const struct cx8800_fmt    *fmt;
 
@@ -548,6 +549,7 @@ struct cx8802_dev {
 	/* pci i/o */
 	struct pci_dev             *pci;
 	unsigned char              pci_rev,pci_lat;
+	void			   *alloc_ctx;
 
 	/* dma queues */
 	struct cx88_dmaqueue       mpegq;