[PATCH] drm/rockchip: defined struct vop_driver_dt_match[] under CONFIG_OF

[Souptick Joarder <jrdr.linux@gmail.com>]

kernel test robot throws warning when CONFIG_OF not set.

>> drivers/gpu/drm/rockchip/rockchip_vop_reg.c:1038:34:
warning: unused variable 'vop_driver_dt_match' [-Wunused-const-variable]
   static const struct of_device_id vop_driver_dt_match[] = {

Fixed it by defining vop_driver_dt_match[] under CONFIG_OF.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
---
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index ca7cc82125cb..2cdf889ca361 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -1069,6 +1069,7 @@ static const struct vop_data rk3328_vop = {
 	.win_size = ARRAY_SIZE(rk3328_vop_win_data),
 };
 
+#ifdef CONFIG_OF
 static const struct of_device_id vop_driver_dt_match[] = {
 	{ .compatible = "rockchip,rk3036-vop",
 	  .data = &rk3036_vop },
@@ -1099,6 +1100,7 @@ static const struct of_device_id vop_driver_dt_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, vop_driver_dt_match);
+#endif
 
 static int vop_probe(struct platform_device *pdev)
 {
-- 
2.25.1