diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
index b91cec56fecda..9c777e8250357 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
@@ -361,6 +361,11 @@
 	status = "okay";
  };
 
+&display_subsystem {
+	clocks = <&hdptxphy_hdmi_clk0>;
+	clock-names = "hdmi0_phy_pll";
+};
+
 &hdptxphy_hdmi0 {
 	status = "okay";
  };
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 836d2a730e352..3d0bd0d9cd6e5 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -575,6 +575,10 @@ static const struct drm_display_mode drm_dmt_modes[] = {
 	{ DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104,
 		   4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
 		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 0x59 - 1024x600@59.94Hz RB */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 51200, 1024, 1192,
+		   1224, 1344, 0, 600, 615, 621, 635, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
 };
 
 /*