[media] soc-camera: switch I2C subdevice drivers to use v4l2-clk

Instead of centrally enabling and disabling subdevice master clocks in
soc-camera core, let subdevice drivers do that themselves, using the
V4L2 clock API and soc-camera convenience wrappers.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index dfa24df960df..f582323fafb7 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -49,6 +49,7 @@ struct soc_camera_device {
         /* soc_camera.c private count. Only accessed with .host_lock held */
         int use_count;
         struct file *streamer;          /* stream owner */
+        struct v4l2_clk *clk;
         union {
                 struct videobuf_queue vb_vidq;
                 struct vb2_queue vb2_vidq;
@@ -325,14 +326,16 @@ static inline void soc_camera_limit_side(int *start, int *length,
 unsigned long soc_camera_apply_board_flags(struct soc_camera_subdev_desc *ssdd,
                                            const struct v4l2_mbus_config *cfg);
 
-int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd);
-int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd);
+int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
+                        struct v4l2_clk *clk);
+int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd,
+                         struct v4l2_clk *clk);
 
 static inline int soc_camera_set_power(struct device *dev,
-                                struct soc_camera_subdev_desc *ssdd, bool on)
+                struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk, bool on)
 {
-        return on ? soc_camera_power_on(dev, ssdd)
-                  : soc_camera_power_off(dev, ssdd);
+        return on ? soc_camera_power_on(dev, ssdd, clk)
+                  : soc_camera_power_off(dev, ssdd, clk);
 }
 
 /* This is only temporary here - until v4l2-subdev begins to link to video_device */