drm/sun4i: Add support for H6 TCON TV

H6 has one TCON TV which can be connected either on HDMI or TV.
Currently support for HDMI is added. set_mux callback might need
additional code for TV.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>

drivers/gpu/drm/sun4i/sun4i_tcon.c

@@ -1154,12 +1154,30 @@ static int sun6i_tcon_set_mux(struct sun4i_tcon *tcon,
 	return 0;
 }
 
+static int sun50i_h6_tcon_tv_set_mux(struct sun4i_tcon *tcon,
+				     const struct drm_encoder *encoder)
+{
+	if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
+		sun8i_tcon_top_set_hdmi_src(tcon->tcon_top, 0);
+
+	sun8i_tcon_top_de_config(tcon->tcon_top, tcon->id,
+				 tcon_type_tv, 0);
+
+	return 0;
+}
+
 static const struct sun4i_tcon_quirks sun4i_a10_quirks = {
 	.has_channel_0		= true,
 	.has_channel_1		= true,
 	.set_mux		= sun4i_a10_tcon_set_mux,
 };
 
+static const struct sun4i_tcon_quirks sun50i_h6_tv_0_quirks = {
+	.has_channel_1		= true,
+	.needs_tcon_top		= true,
+	.set_mux		= sun50i_h6_tcon_tv_set_mux,
+};
+
 static const struct sun4i_tcon_quirks sun5i_a13_quirks = {
 	.has_channel_0		= true,
 	.has_channel_1		= true,
@@ -1208,6 +1226,7 @@ static const struct sun4i_tcon_quirks sun8i_v3s_quirks = {
 /* sun4i_drv uses this list to check if a device node is a TCON */
 const struct of_device_id sun4i_tcon_of_table[] = {
 	{ .compatible = "allwinner,sun4i-a10-tcon", .data = &sun4i_a10_quirks },
+	{ .compatible = "allwinner,sun50i-h6-tcon-tv", .data = &sun50i_h6_tv_0_quirks },
 	{ .compatible = "allwinner,sun5i-a13-tcon", .data = &sun5i_a13_quirks },
 	{ .compatible = "allwinner,sun6i-a31-tcon", .data = &sun6i_a31_quirks },
 	{ .compatible = "allwinner,sun6i-a31s-tcon", .data = &sun6i_a31s_quirks },