media: i2c: imx219: Restore the 1920x1080 to using a 1:1 PAR

Commit 0af46fb ("media: i2c: imx219: Calculate crop rectangle
dynamically") meant that the 1920x1080 switched from using no binning
to using vertical binning but no horizontal binning.

Restore the original behaviour by ensuring the two binning settings
are the same.

Fixes: 0af46fb ("media: i2c: imx219: Calculate crop rectangle dynamically")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

Author: 6by9

drivers/media/i2c/imx219.c

@@ -842,7 +842,7 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 	const struct imx219_mode *mode;
 	struct v4l2_mbus_framefmt *format;
 	struct v4l2_rect *crop;
-	unsigned int bin_h, bin_v;
+	unsigned int bin_h, bin_v, binning;
 
 	mode = v4l2_find_nearest_size(supported_modes,
 				      ARRAY_SIZE(supported_modes),
@@ -860,10 +860,11 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 	 */
 	bin_h = min(IMX219_PIXEL_ARRAY_WIDTH / format->width, 2U);
 	bin_v = min(IMX219_PIXEL_ARRAY_HEIGHT / format->height, 2U);
+	binning = min(bin_h, bin_v);
 
 	crop = v4l2_subdev_state_get_crop(state, 0);
-	crop->width = format->width * bin_h;
-	crop->height = format->height * bin_v;
+	crop->width = format->width * binning;
+	crop->height = format->height * binning;
 	crop->left = (IMX219_NATIVE_WIDTH - crop->width) / 2;
 	crop->top = (IMX219_NATIVE_HEIGHT - crop->height) / 2;