[media] V4L: mt9m001, mt9v022: use internally cached pixel code

Using the internally cached pixel code, instead of the one, provided by
the soc-camera, removes one more use of struct soc_camera_device in these
drivers. Also remove the no longer needed soc_camera_from_i2c() inline
function.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/mt9m001.c

@@ -601,15 +601,9 @@ static int mt9m001_s_mbus_config(struct v4l2_subdev *sd,
 				const struct v4l2_mbus_config *cfg)
 {
 	const struct i2c_client *client = v4l2_get_subdevdata(sd);
-	struct soc_camera_device *icd = soc_camera_from_i2c(client);
 	struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
-	/*
-	 * Cannot use icd->current_fmt->host_fmt->bits_per_sample, because that
-	 * is the number of bits, that the host has to sample, not the number of
-	 * bits, that we have to send. See mx3_camera.c for an example of 10-bit
-	 * formats being truncated to 8 bits by the host.
-	 */
-	unsigned int bps = soc_mbus_get_fmtdesc(icd->current_fmt->code)->bits_per_sample;
+	struct mt9m001 *mt9m001 = to_mt9m001(client);
+	unsigned int bps = soc_mbus_get_fmtdesc(mt9m001->fmt->code)->bits_per_sample;
 
 	if (icl->set_bus_param)
 		return icl->set_bus_param(icl, 1 << (bps - 1));

drivers/media/video/mt9v022.c

@@ -700,23 +700,13 @@ static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
 				 const struct v4l2_mbus_config *cfg)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	struct soc_camera_device *icd = client->dev.platform_data;
-	struct soc_camera_link *icl = to_soc_camera_link(icd);
+	struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
 	struct mt9v022 *mt9v022 = to_mt9v022(client);
 	unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
-	/*
-	 * Cannot use icd->current_fmt->host_fmt->bits_per_sample, because that
-	 * is the number of bits, that the host has to sample, not the number of
-	 * bits, that we have to send. See mx3_camera.c for an example of 10-bit
-	 * formats being truncated to 8 bits by the host.
-	 */
-	unsigned int bps = soc_mbus_get_fmtdesc(icd->current_fmt->code)->bits_per_sample;
+	unsigned int bps = soc_mbus_get_fmtdesc(mt9v022->fmt->code)->bits_per_sample;
 	int ret;
 	u16 pixclk = 0;
 
-	dev_dbg(icd->pdev, "set %d: %s, %dbps\n", icd->current_fmt->code,
-		icd->current_fmt->host_fmt->name, bps);
-
 	if (icl->set_bus_param) {
 		ret = icl->set_bus_param(icl, 1 << (bps - 1));
 		if (ret)

include/media/soc_camera.h

@@ -269,11 +269,6 @@ static inline struct v4l2_subdev *soc_camera_vdev_to_subdev(const struct video_d
 	return soc_camera_to_subdev(icd);
 }
 
-static inline struct soc_camera_device *soc_camera_from_i2c(const struct i2c_client *client)
-{
-	return client->dev.platform_data;
-}
-
 static inline struct soc_camera_device *soc_camera_from_vb2q(const struct vb2_queue *vq)
 {
 	return container_of(vq, struct soc_camera_device, vb2_vidq);