[media] V4L: soc-camera: make (almost) all client drivers re-usable outside of the framework
The most important change in this patch is direct linking to struct
soc_camera_link via the client->dev.platform_data pointer. This makes most
of the soc-camera client drivers also usable outside of the soc-camera
framework. After this change all what is needed for these drivers to
function are inclusions of soc-camera headers for some convenience macros,
suitably configured platform data, which is anyway always required, and
loaded soc-camera core module for library functions. If desired, these
library functions can be made generic in the future and moved to a more
neutral location.
The only two client drivers, that still depend on soc-camera are:
mt9t031: it uses struct video_device for its PM. Since no hardware is
available, alternative methods cannot be tested.
ov6650: it uses struct soc_camera_device to pass its sense data back to
the bridge driver. A generic v4l2-subdevice approach should be developed
to perform this.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 9a62ed0..b72580c 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -249,6 +249,14 @@
return v4l2_subdev_call(sd, core, s_std, *a);
}
+static int soc_camera_g_std(struct file *file, void *priv, v4l2_std_id *a)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+
+ return v4l2_subdev_call(sd, core, g_std, a);
+}
+
static int soc_camera_enum_fsizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
@@ -977,7 +985,7 @@
goto ei2cga;
}
- icl->board_info->platform_data = icd;
+ icl->board_info->platform_data = icl;
subdev = v4l2_i2c_new_subdev_board(&ici->v4l2_dev, adap,
icl->board_info, NULL);
@@ -1376,6 +1384,7 @@
.vidioc_g_input = soc_camera_g_input,
.vidioc_s_input = soc_camera_s_input,
.vidioc_s_std = soc_camera_s_std,
+ .vidioc_g_std = soc_camera_g_std,
.vidioc_enum_framesizes = soc_camera_enum_fsizes,
.vidioc_reqbufs = soc_camera_reqbufs,
.vidioc_querybuf = soc_camera_querybuf,