Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media update from Mauro Carvalho Chehab:

 - OF documentation and patches at core and drivers, to be used by for
   embedded media systems

 - some I2C drivers used on go7007 were rewritten/promoted from staging:
   sony-btf-mpx, tw2804, tw9903, tw9906, wis-ov7640, wis-uda1342

 - add fimc-is driver (Exynos)

 - add a new radio driver: radio-si476x

 - add a two new tuners: r820t and tuner_it913x

 - split camera code on em28xx driver and add more models

 - the cypress firmware load is used outside dvb usb drivers.  So, move
   it to a common directory to make easier to re-use it

 - siano media driver updated to work with sms2270 devices

 - several work done in order to promote go7007 and solo6x1x out of
   staging (still, there are some pending issues)

 - several API compliance fixes at v4l2 drivers that don't behave as
   expected

 - as usual, lots of driver fixes, improvements, cleanups and new device
   addition at the existing drivers.

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (831 commits)
  [media] cx88: make core less verbose
  [media] em28xx: fix oops at em28xx_dvb_bus_ctrl()
  [media] s5c73m3: fix indentation of the help section in Kconfig
  [media] cx25821-alsa: get rid of a __must_check warning
  [media] cx25821-video: declare cx25821_vidioc_s_std as static
  [media] cx25821-video: remove maxw from cx25821_vidioc_try_fmt_vid_cap
  [media] r820t: Remove a warning for an unused value
  [media] dib0090: Fix a warning at dib0090_set_EFUSE
  [media] dib8000: fix a warning
  [media] dib8000: Fix sub-channel range
  [media] dib8000: store dtv_property_cache in a temp var
  [media] dib8000: warning fix: declare internal functions as static
  [media] r820t: quiet gcc warning on n_ring
  [media] r820t: memory leak in release()
  [media] r820t: precendence bug in r820t_xtal_check()
  [media] videodev2.h: Remove the unused old V4L1 buffer types
  [media] anysee: Grammar s/report the/report to/
  [media] anysee: Initialize ret = 0 in anysee_frontend_attach()
  [media] media: videobuf2: fix the length check for mmap
  [media] em28xx: save isoc endpoint number for DVB only if endpoint has alt settings with xMaxPacketSize != 0
  ...

1 files changed, 9 insertions, 2 deletions

diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 9cfd4ee9e56..d88a098d1af 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -27,7 +27,9 @@ struct vb2_fileio_data;
  *		return NULL on failure or a pointer to allocator private,
  *		per-buffer data on success; the returned private structure
  *		will then be passed as buf_priv argument to other ops in this
- *		structure
+ *		structure. Additional gfp_flags to use when allocating the
+ *		are also passed to this operation. These flags are from the
+ *		gfp_flags field of vb2_queue.
  * @put:	inform the allocator that the buffer will no longer be used;
  *		usually will result in the allocator freeing the buffer (if
  *		no other users of this buffer are present); the buf_priv
@@ -79,7 +81,7 @@ struct vb2_fileio_data;
  *				  unmap_dmabuf.
  */
 struct vb2_mem_ops {
-	void		*(*alloc)(void *alloc_ctx, unsigned long size);
+	void		*(*alloc)(void *alloc_ctx, unsigned long size, gfp_t gfp_flags);
 	void		(*put)(void *buf_priv);
 	struct dma_buf *(*get_dmabuf)(void *buf_priv);
 
@@ -302,6 +304,9 @@ struct v4l2_fh;
  * @buf_struct_size: size of the driver-specific buffer structure;
  *		"0" indicates the driver doesn't want to use a custom buffer
  *		structure type, so sizeof(struct vb2_buffer) will is used
+ * @gfp_flags:	additional gfp flags used when allocating the buffers.
+ *		Typically this is 0, but it may be e.g. GFP_DMA or __GFP_DMA32
+ *		to force the buffer allocation to a specific memory zone.
  *
  * @memory:	current memory type used
  * @bufs:	videobuf buffer structures
@@ -326,6 +331,8 @@ struct vb2_queue {
 	const struct vb2_mem_ops	*mem_ops;
 	void				*drv_priv;
 	unsigned int			buf_struct_size;
+	u32				timestamp_type;
+	gfp_t				gfp_flags;
 
 /* private: internal use only */
 	enum v4l2_memory		memory;