diff --git a/drivers/media/i2c/soc_camera/rockchip/ov9750_v4l2-i2c-subdev.c b/drivers/media/i2c/soc_camera/rockchip/ov9750_v4l2-i2c-subdev.c
index e8b39cf5c349..a3605b63d519 100644
--- a/drivers/media/i2c/soc_camera/rockchip/ov9750_v4l2-i2c-subdev.c
+++ b/drivers/media/i2c/soc_camera/rockchip/ov9750_v4l2-i2c-subdev.c
@@ -953,6 +953,7 @@ static struct v4l2_subdev_pad_ops ov9750_camera_module_pad_ops = {
 	.enum_frame_interval = ov_camera_module_enum_frameintervals,
 	.get_fmt = ov_camera_module_g_fmt,
 	.set_fmt = ov_camera_module_s_fmt,
+	.enum_frame_size = ov_camera_module_enum_frame_size,
 };
 
 static struct v4l2_subdev_ops ov9750_camera_module_ops = {
diff --git a/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.c b/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.c
index 1fced7f4ec70..032984869999 100644
--- a/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.c
+++ b/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.c
@@ -339,6 +339,30 @@ int ov_camera_module_g_fmt(struct v4l2_subdev *sd,
 
 /* ======================================================================== */
 
+int ov_camera_module_enum_frame_size(
+	struct v4l2_subdev *sd,
+	struct v4l2_subdev_pad_config *cfg,
+	struct v4l2_subdev_frame_size_enum *fse)
+{
+	struct ov_camera_module *cam_mod = to_ov_camera_module(sd);
+
+	if (fse->index >= cam_mod->custom.num_configs)
+		return -EINVAL;
+
+	fse->code =
+		cam_mod->custom.configs[fse->index].frm_fmt.code;
+	fse->max_width =
+		cam_mod->custom.configs[fse->index].frm_fmt.width;
+	fse->max_height =
+		cam_mod->custom.configs[fse->index].frm_fmt.height;
+
+	pltfrm_camera_module_pr_debug(&cam_mod->sd, "%dx%d",
+				      fse->max_width, fse->max_height);
+	return 0;
+}
+
+/* ======================================================================== */
+
 int ov_camera_module_s_frame_interval(
 	struct v4l2_subdev *sd,
 	struct v4l2_subdev_frame_interval *interval)
diff --git a/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.h b/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.h
index 1ae6576a1b74..cd9db4df6dc4 100644
--- a/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.h
+++ b/drivers/media/i2c/soc_camera/rockchip/ov_camera_module.h
@@ -276,6 +276,11 @@ int ov_camera_module_s_ext_ctrls(
 	struct v4l2_subdev *sd,
 	struct v4l2_ext_controls *ctrls);
 
+int ov_camera_module_enum_frame_size(
+	struct v4l2_subdev *sd,
+	struct v4l2_subdev_pad_config *cfg,
+	struct v4l2_subdev_frame_size_enum *fse);
+
 int ov_camera_module_enum_frameintervals(
 	struct v4l2_subdev *sd,
 	struct v4l2_subdev_pad_config *cfg,