media: i2c: ov5670: Implement init_cfg

Implement the .init_cfg() pad operation and initialize the default
format with the default full resolution mode 2592x1944.

With .init_cfg() pad operation implemented the deprecated .open()
internal operation can now be dropped.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Tested-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/ov5670.c

@@ -1962,27 +1962,6 @@ static int ov5670_write_reg_list(struct ov5670 *ov5670,
 	return ov5670_write_regs(ov5670, r_list->regs, r_list->num_of_regs);
 }
 
-/* Open sub-device */
-static int ov5670_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
-	struct ov5670 *ov5670 = to_ov5670(sd);
-	struct v4l2_mbus_framefmt *try_fmt =
-				v4l2_subdev_get_try_format(sd, fh->state, 0);
-
-	mutex_lock(&ov5670->mutex);
-
-	/* Initialize try_fmt */
-	try_fmt->width = ov5670->cur_mode->width;
-	try_fmt->height = ov5670->cur_mode->height;
-	try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
-	try_fmt->field = V4L2_FIELD_NONE;
-
-	/* No crop or compose */
-	mutex_unlock(&ov5670->mutex);
-
-	return 0;
-}
-
 static int ov5670_update_digital_gain(struct ov5670 *ov5670, u32 d_gain)
 {
 	int ret;
@@ -2182,6 +2161,25 @@ static int ov5670_init_controls(struct ov5670 *ov5670)
 	return ret;
 }
 
+static int ov5670_init_cfg(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_state *state)
+{
+	struct v4l2_mbus_framefmt *fmt =
+				v4l2_subdev_get_try_format(sd, state, 0);
+	const struct ov5670_mode *default_mode = &supported_modes[0];
+
+	fmt->width = default_mode->width;
+	fmt->height = default_mode->height;
+	fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+	fmt->field = V4L2_FIELD_NONE;
+	fmt->colorspace = V4L2_COLORSPACE_SRGB;
+	fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(V4L2_COLORSPACE_SRGB);
+	fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
+	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(V4L2_COLORSPACE_SRGB);
+
+	return 0;
+}
+
 static int ov5670_enum_mbus_code(struct v4l2_subdev *sd,
 				 struct v4l2_subdev_state *sd_state,
 				 struct v4l2_subdev_mbus_code_enum *code)
@@ -2513,6 +2511,7 @@ static const struct v4l2_subdev_video_ops ov5670_video_ops = {
 };
 
 static const struct v4l2_subdev_pad_ops ov5670_pad_ops = {
+	.init_cfg = ov5670_init_cfg,
 	.enum_mbus_code = ov5670_enum_mbus_code,
 	.get_fmt = ov5670_get_pad_format,
 	.set_fmt = ov5670_set_pad_format,
@@ -2534,10 +2533,6 @@ static const struct media_entity_operations ov5670_subdev_entity_ops = {
 	.link_validate = v4l2_subdev_link_validate,
 };
 
-static const struct v4l2_subdev_internal_ops ov5670_internal_ops = {
-	.open = ov5670_open,
-};
-
 static int ov5670_regulators_probe(struct ov5670 *ov5670)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
@@ -2640,7 +2635,6 @@ static int ov5670_probe(struct i2c_client *client)
 		goto error_mutex_destroy;
 	}
 
-	ov5670->sd.internal_ops = &ov5670_internal_ops;
 	ov5670->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
 			    V4L2_SUBDEV_FL_HAS_EVENTS;
 	ov5670->sd.entity.ops = &ov5670_subdev_entity_ops;