V4L/DVB (12510): soc-camera: (partially) convert to v4l2-(sub)dev API

Convert the soc-camera framework to use the v4l2-(sub)dev API. Start using
v4l2-subdev operations. Only a part of the interface between the
soc_camera core, soc_camera host drivers on one side and soc_camera device
drivers on the other side is replaced so far. The rest of the interface
will be replaced in incremental steps, and will require extensions and,
possibly, modifications to the v4l2-subdev code.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 17 deletions

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index d8b4256126a4..3bc5b6b20f64 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -16,10 +16,12 @@
 #include <linux/pm.h>
 #include <linux/videodev2.h>
 #include <media/videobuf-core.h>
+#include <media/v4l2-device.h>
 
 struct soc_camera_device {
         struct list_head list;
         struct device dev;
+        struct device *pdev;            /* Platform device */
         unsigned short width;           /* Current window */
         unsigned short height;          /* sizes */
         unsigned short x_min;           /* Camera capabilities */
@@ -45,7 +47,6 @@ struct soc_camera_device {
         struct soc_camera_format_xlate *user_formats;
         int num_user_formats;
         enum v4l2_field field;          /* Preserve field over close() */
-        struct module *owner;
         void *host_priv;                /* Per-device host private data */
         /* soc_camera.c private count. Only accessed with .video_lock held */
         int use_count;
@@ -58,8 +59,8 @@ struct soc_camera_file {
 };
 
 struct soc_camera_host {
+        struct v4l2_device v4l2_dev;
         struct list_head list;
-        struct device *dev;
         unsigned char nr;                               /* Host number */
         void *priv;
         const char *drv_name;
@@ -127,7 +128,9 @@ static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev)
 
 static inline struct soc_camera_host *to_soc_camera_host(struct device *dev)
 {
-        return dev_get_drvdata(dev);
+        struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
+
+        return container_of(v4l2_dev, struct soc_camera_host, v4l2_dev);
 }
 
 static inline struct soc_camera_link *to_soc_camera_link(struct soc_camera_device *icd)
@@ -143,9 +146,6 @@ static inline struct device *to_soc_camera_control(struct soc_camera_device *icd
 int soc_camera_host_register(struct soc_camera_host *ici);
 void soc_camera_host_unregister(struct soc_camera_host *ici);
 
-int soc_camera_video_start(struct soc_camera_device *icd, struct device *dev);
-void soc_camera_video_stop(struct soc_camera_device *icd);
-
 const struct soc_camera_data_format *soc_camera_format_by_fourcc(
         struct soc_camera_device *icd, unsigned int fourcc);
 const struct soc_camera_format_xlate *soc_camera_xlate_by_fourcc(
@@ -176,28 +176,17 @@ struct soc_camera_format_xlate {
 };
 
 struct soc_camera_ops {
-        struct module *owner;
         int (*suspend)(struct soc_camera_device *, pm_message_t state);
         int (*resume)(struct soc_camera_device *);
         int (*init)(struct soc_camera_device *);
         int (*release)(struct soc_camera_device *);
-        int (*start_capture)(struct soc_camera_device *);
-        int (*stop_capture)(struct soc_camera_device *);
         int (*set_crop)(struct soc_camera_device *, struct v4l2_rect *);
-        int (*set_fmt)(struct soc_camera_device *, struct v4l2_format *);
-        int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
         unsigned long (*query_bus_param)(struct soc_camera_device *);
         int (*set_bus_param)(struct soc_camera_device *, unsigned long);
         int (*get_chip_id)(struct soc_camera_device *,
                            struct v4l2_dbg_chip_ident *);
         int (*set_std)(struct soc_camera_device *, v4l2_std_id *);
         int (*enum_input)(struct soc_camera_device *, struct v4l2_input *);
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-        int (*get_register)(struct soc_camera_device *, struct v4l2_dbg_register *);
-        int (*set_register)(struct soc_camera_device *, struct v4l2_dbg_register *);
-#endif
-        int (*get_control)(struct soc_camera_device *, struct v4l2_control *);
-        int (*set_control)(struct soc_camera_device *, struct v4l2_control *);
         const struct v4l2_queryctrl *controls;
         int num_controls;
 };