V4L/DVB (8338): soc_camera: Move spinlocks

This patch moves the spinlock handling from soc_camera.c to the actual
camera host driver. The spinlock_alloc/free callbacks are replaced with
code in init_videobuf(). So far all camera host drivers implement their
own spinlock_alloc/free methods anyway, and videobuf_queue_core_init()
BUGs on a NULL spinlock argument, so, new camera host drivers will not
forget to provide a spinlock when initialising their videobuf queues.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index b204c0dee956..bae160213657 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -48,7 +48,6 @@ struct soc_camera_device {
 struct soc_camera_file {
         struct soc_camera_device *icd;
         struct videobuf_queue vb_vidq;
-        spinlock_t *lock;
 };
 
 struct soc_camera_host {
@@ -67,15 +66,13 @@ struct soc_camera_host_ops {
         int (*set_fmt_cap)(struct soc_camera_device *, __u32,
                            struct v4l2_rect *);
         int (*try_fmt_cap)(struct soc_camera_device *, struct v4l2_format *);
-        void (*init_videobuf)(struct videobuf_queue*, spinlock_t *,
+        void (*init_videobuf)(struct videobuf_queue *,
                               struct soc_camera_device *);
         int (*reqbufs)(struct soc_camera_file *, struct v4l2_requestbuffers *);
         int (*querycap)(struct soc_camera_host *, struct v4l2_capability *);
         int (*try_bus_param)(struct soc_camera_device *, __u32);
         int (*set_bus_param)(struct soc_camera_device *, __u32);
         unsigned int (*poll)(struct file *, poll_table *);
-        spinlock_t* (*spinlock_alloc)(struct soc_camera_file *);
-        void (*spinlock_free)(spinlock_t *);
 };
 
 struct soc_camera_link {