drm/exynos/hdmi: add 297MHz pixel clock support

297MHz is used by Ultra HD modes.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -587,6 +587,15 @@ static const struct hdmiphy_config hdmiphy_5433_configs[] = {
 			0x08, 0x10, 0x01, 0x01, 0x48, 0x4a, 0x00, 0x40,
 		},
 	},
+	{
+		.pixel_clock = 297000000,
+		.conf = {
+			0x01, 0x51, 0x3E, 0x05, 0x40, 0xF0, 0x88, 0xC2,
+			0x52, 0x53, 0x44, 0x8C, 0x27, 0x00, 0x7C, 0xAC,
+			0xD6, 0x2B, 0x67, 0x00, 0x00, 0x04, 0x00, 0x30,
+			0x08, 0x10, 0x01, 0x01, 0x48, 0x40, 0x00, 0x40,
+		},
+	},
 };
 
 static const char * const hdmi_clk_gates4[] = {