V4L/DVB (8337): soc_camera: make videobuf independent

Makes SoC camera videobuf independent. Includes all necessary changes for
PXA camera driver (currently the only driver using soc_camera in the mainline).
These changes are important for the future soc_camera based drivers.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c
index 5ec5bb9a94d2..c3a7d476dc4b 100644
--- a/drivers/media/video/pxa_camera.c
+++ b/drivers/media/video/pxa_camera.c
@@ -30,6 +30,7 @@
 
 #include <media/v4l2-common.h>
 #include <media/v4l2-dev.h>
+#include <media/videobuf-dma-sg.h>
 #include <media/soc_camera.h>
 
 #include <linux/videodev2.h>
@@ -582,6 +583,16 @@ static struct videobuf_queue_ops pxa_videobuf_ops = {
         .buf_release    = pxa_videobuf_release,
 };
 
+static void pxa_camera_init_videobuf(struct videobuf_queue *q, spinlock_t *lock,
+                              struct soc_camera_device *icd)
+{
+        /* We must pass NULL as dev pointer, then all pci_* dma operations
+         * transform to normal dma_* ones. */
+        videobuf_queue_sg_init(q, &pxa_videobuf_ops, NULL, lock,
+                                V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
+                                sizeof(struct pxa_buffer), icd);
+}
+
 static int mclk_get_divisor(struct pxa_camera_dev *pcdev)
 {
         unsigned int mclk_10khz = pcdev->platform_mclk_10khz;
@@ -998,6 +1009,7 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
         .remove         = pxa_camera_remove_device,
         .set_fmt_cap    = pxa_camera_set_fmt_cap,
         .try_fmt_cap    = pxa_camera_try_fmt_cap,
+        .init_videobuf  = pxa_camera_init_videobuf,
         .reqbufs        = pxa_camera_reqbufs,
         .poll           = pxa_camera_poll,
         .querycap       = pxa_camera_querycap,
@@ -1009,8 +1021,6 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
 /* Should be allocated dynamically too, but we have only one. */
 static struct soc_camera_host pxa_soc_camera_host = {
         .drv_name               = PXA_CAM_DRV_NAME,
-        .vbq_ops                = &pxa_videobuf_ops,
-        .msize                  = sizeof(struct pxa_buffer),
         .ops                    = &pxa_soc_camera_host_ops,
 };