media: i2c: imx219: Don't store the current mode in the imx219 structure

The mode field of the imx219 structure is only used in
imx219_init_controls(), after the probe function sets it to point to the
default mode. Use the default mode directly when initializing controls,
and drop the mode field from the imx219 structure.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/i2c/imx219.c

@@ -362,9 +362,6 @@ struct imx219 {
 	struct v4l2_ctrl *vblank;
 	struct v4l2_ctrl *hblank;
 
-	/* Current mode */
-	const struct imx219_mode *mode;
-
 	/* Two or Four lanes */
 	u8 lanes;
 };
@@ -580,7 +577,6 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 	*crop = mode->crop;
 
 	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
-		imx219->mode = mode;
 		/* Update limits and set FPS to default */
 		__v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN,
 					 IMX219_VTS_MAX - mode->height, 1,
@@ -923,8 +919,8 @@ static unsigned long imx219_get_pixel_rate(struct imx219 *imx219)
 static int imx219_init_controls(struct imx219 *imx219)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
+	const struct imx219_mode *mode = &supported_modes[0];
 	struct v4l2_ctrl_handler *ctrl_hdlr;
-	unsigned int height = imx219->mode->height;
 	struct v4l2_fwnode_device_properties props;
 	int exposure_max, exposure_def, hblank;
 	int i, ret;
@@ -953,15 +949,15 @@ static int imx219_init_controls(struct imx219 *imx219)
 	/* Initial vblank/hblank/exposure parameters based on current mode */
 	imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
 					   V4L2_CID_VBLANK, IMX219_VBLANK_MIN,
-					   IMX219_VTS_MAX - height, 1,
-					   imx219->mode->vts_def - height);
-	hblank = IMX219_PPL_DEFAULT - imx219->mode->width;
+					   IMX219_VTS_MAX - mode->height, 1,
+					   mode->vts_def - mode->height);
+	hblank = IMX219_PPL_DEFAULT - mode->width;
 	imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
 					   V4L2_CID_HBLANK, hblank, hblank,
 					   1, hblank);
 	if (imx219->hblank)
 		imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-	exposure_max = imx219->mode->vts_def - 4;
+	exposure_max = mode->vts_def - 4;
 	exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
 		exposure_max : IMX219_EXPOSURE_DEFAULT;
 	imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
@@ -1148,10 +1144,8 @@ static int imx219_probe(struct i2c_client *client)
 	if (ret)
 		goto error_power_off;
 
-	/* Set default mode to max resolution */
-	imx219->mode = &supported_modes[0];
-
-	/* sensor doesn't enter LP-11 state upon power up until and unless
+	/*
+	 * Sensor doesn't enter LP-11 state upon power up until and unless
 	 * streaming is started, so upon power up switch the modes to:
 	 * streaming -> standby
 	 */