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[media] s5p-csis: Enable v4l subdev device node 

Set v4l2_subdev flags for a host driver to create a sub-device
node for the driver so the subdev can be directly configured
by applications. Add the subdev open() handler.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Sylwester Nawrocki 2011-11-15 15:34:06 -03:00 committed by Mauro Carvalho Chehab
parent 87eaec5dff
commit 6cf1056f0a
2 changed files with 25 additions and 0 deletions
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22
drivers/media/video/s5p-fimc/mipi-csis.c
View File

@ -427,6 +427,23 @@ static int s5pcsis_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
return 0;
}
static int s5pcsis_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0);
format->colorspace = V4L2_COLORSPACE_JPEG;
format->code = s5pcsis_formats[0].code;
format->width = S5PCSIS_DEF_PIX_WIDTH;
format->height = S5PCSIS_DEF_PIX_HEIGHT;
format->field = V4L2_FIELD_NONE;
return 0;
}
static const struct v4l2_subdev_internal_ops s5pcsis_sd_internal_ops = {
.open = s5pcsis_open,
};
static struct v4l2_subdev_core_ops s5pcsis_core_ops = {
.s_power = s5pcsis_s_power,
};
@ -544,8 +561,13 @@ static int __devinit s5pcsis_probe(struct platform_device *pdev)
v4l2_subdev_init(&state->sd, &s5pcsis_subdev_ops);
state->sd.owner = THIS_MODULE;
strlcpy(state->sd.name, dev_name(&pdev->dev), sizeof(state->sd.name));
state->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
state->csis_fmt = &s5pcsis_formats[0];
state->format.code = s5pcsis_formats[0].code;
state->format.width = S5PCSIS_DEF_PIX_WIDTH;
state->format.height = S5PCSIS_DEF_PIX_HEIGHT;
state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
ret = media_entity_init(&state->sd.entity,

3
drivers/media/video/s5p-fimc/mipi-csis.h
View File

@ -19,4 +19,7 @@
#define CSIS_PAD_SOURCE 1
#define CSIS_PADS_NUM 2
#define S5PCSIS_DEF_PIX_WIDTH 640
#define S5PCSIS_DEF_PIX_HEIGHT 480
#endif