arm64: dts: renesas: cat874: Add HDMI video support

The CAT874 board comes with a HDMI connector, managed by
a TDA19988BET chip, connected to the RZ/G2E SoC via DPAD.
This patch adds the necessary support to the board DT.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
index 013a48c..0623950 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
@@ -22,6 +22,17 @@
                stdout-path = "serial0:115200n8";
        };
 
+       hdmi-out {
+               compatible = "hdmi-connector";
+               type = "a";
+
+               port {
+                       hdmi_con_out: endpoint {
+                               remote-endpoint = <&tda19988_out>;
+                       };
+               };
+       };
+
        leds {
                compatible = "gpio-leds";
 
@@ -74,6 +85,31 @@
                states = <3300000 1
                          1800000 0>;
        };
+
+       x13_clk: x13 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <74250000>;
+       };
+};
+
+&du {
+       pinctrl-0 = <&du_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       clocks = <&cpg CPG_MOD 724>,
+                <&cpg CPG_MOD 723>,
+                <&x13_clk>;
+       clock-names = "du.0", "du.1", "dclkin.0";
+
+       ports {
+               port@0 {
+                       endpoint {
+                               remote-endpoint = <&tda19988_in>;
+                       };
+               };
+       };
 };
 
 &ehci0 {
@@ -85,6 +121,39 @@
        clock-frequency = <48000000>;
 };
 
+&i2c0 {
+       status = "okay";
+       clock-frequency = <100000>;
+
+       tda19988: tda19988@70 {
+               compatible = "nxp,tda998x";
+               reg = <0x70>;
+               interrupt-parent = <&gpio1>;
+               interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+
+               video-ports = <0x234501>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               tda19988_in: endpoint {
+                                       remote-endpoint = <&du_out_rgb>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+                               tda19988_out: endpoint {
+                                       remote-endpoint = <&hdmi_con_out>;
+                               };
+                       };
+               };
+       };
+};
+
 &i2c1 {
        pinctrl-0 = <&i2c1_pins>;
        pinctrl-names = "default";
@@ -98,6 +167,13 @@
        };
 };
 
+&lvds0 {
+       status = "okay";
+
+       clocks = <&cpg CPG_MOD 727>, <&x13_clk>, <&extal_clk>;
+       clock-names = "fck", "dclkin.0", "extal";
+};
+
 &ohci0 {
        dr_mode = "host";
        status = "okay";
@@ -113,6 +189,12 @@
 };
 
 &pfc {
+       du_pins: du {
+               groups = "du_rgb888", "du_clk_out_0", "du_sync", "du_disp",
+                        "du_clk_in_0";
+               function = "du";
+       };
+
        i2c1_pins: i2c1 {
                groups = "i2c1_b";
                function = "i2c1";