media: i2c: imx290: Factor out format retrieval to separate function

The driver duplicates the same pattern to access the try or active
format in multiple locations. Factor it out to a separate function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

drivers/media/i2c/imx290.c

@@ -519,6 +519,16 @@ static const struct v4l2_ctrl_ops imx290_ctrl_ops = {
 	.s_ctrl = imx290_set_ctrl,
 };
 
+static struct v4l2_mbus_framefmt *
+imx290_get_pad_format(struct imx290 *imx290, struct v4l2_subdev_state *state,
+		      u32 which)
+{
+	if (which == V4L2_SUBDEV_FORMAT_ACTIVE)
+		return &imx290->current_format;
+	else
+		return v4l2_subdev_get_try_format(&imx290->sd, state, 0);
+}
+
 static int imx290_enum_mbus_code(struct v4l2_subdev *sd,
 				 struct v4l2_subdev_state *sd_state,
 				 struct v4l2_subdev_mbus_code_enum *code)
@@ -562,12 +572,7 @@ static int imx290_get_fmt(struct v4l2_subdev *sd,
 
 	mutex_lock(&imx290->lock);
 
-	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
-		framefmt = v4l2_subdev_get_try_format(&imx290->sd, sd_state,
-						      fmt->pad);
-	else
-		framefmt = &imx290->current_format;
-
+	framefmt = imx290_get_pad_format(imx290, sd_state, fmt->which);
 	fmt->format = *framefmt;
 
 	mutex_unlock(&imx290->lock);
@@ -627,10 +632,9 @@ static int imx290_set_fmt(struct v4l2_subdev *sd,
 	fmt->format.code = imx290_formats[i].code;
 	fmt->format.field = V4L2_FIELD_NONE;
 
-	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
-		format = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
-	} else {
-		format = &imx290->current_format;
+	format = imx290_get_pad_format(imx290, sd_state, fmt->which);
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
 		imx290->current_mode = mode;
 		imx290->bpp = imx290_formats[i].bpp;