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V4L/DVB (8338): soc_camera: Move spinlocks

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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>
This commit is contained in:
Magnus Damm
2008-07-11 20:59:34 -03:00
committed by Mauro Carvalho Chehab
parent 092d392119
commit a034d1b76b
3 changed files with 7 additions and 54 deletions
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5
include/media/soc_camera.h
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@@ -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 {