drm/sun4i: Add A83T support

Add support for the A83T display pipeline.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/614b430adf3a67320362a75c01b01bd53013da8a.1513854122.git-series.maxime.ripard@free-electrons.com
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 3a610a8..2cbb2de 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -478,6 +478,13 @@ static int sun8i_mixer_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = {
+	.ccsc		= 0,
+	.scaler_mask	= 0xf,
+	.ui_num		= 3,
+	.vi_num		= 1,
+};
+
 static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
 	.vi_num = 2,
 	.ui_num = 1,
@@ -488,6 +495,10 @@ static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = {
 
 static const struct of_device_id sun8i_mixer_of_table[] = {
 	{
+		.compatible = "allwinner,sun8i-a83t-de2-mixer-0",
+		.data = &sun8i_a83t_mixer0_cfg,
+	},
+	{
 		.compatible = "allwinner,sun8i-v3s-de2-mixer",
 		.data = &sun8i_v3s_mixer_cfg,
 	},