arm64: dts: renesas: hihope-common: Add HDMI audio support

This patch adds support for HDMI audio to the device tree
common to the HiHope RZ/G2M and the HiHope RZ/G2N.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/hihope-common.dtsi b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
index 52d61c9..e1b95c3 100644 (file)
--- a/arch/arm64/boot/dts/renesas/hihope-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
@@ -81,6 +81,14 @@
                regulator-always-on;
        };
 
+       sound_card: sound {
+               compatible = "audio-graph-card";
+
+               label = "rcar-sound";
+
+               dais = <&rsnd_port0>;
+       };
+
        vbus0_usb2: regulator-vbus0-usb2 {
                compatible = "regulator-fixed";
 
@@ -129,6 +137,10 @@
        };
 };
 
+&audio_clk_a {
+       clock-frequency = <22579200>;
+};
+
 &du {
        clocks = <&cpg CPG_MOD 724>,
                 <&cpg CPG_MOD 723>,
@@ -176,6 +188,12 @@
                                remote-endpoint = <&hdmi0_con>;
                        };
                };
+               port@2 {
+                       reg = <2>;
+                       dw_hdmi0_snd_in: endpoint {
+                               remote-endpoint = <&rsnd_endpoint0>;
+                       };
+               };
        };
 };
 
@@ -272,6 +290,11 @@
                power-source = <1800>;
        };
 
+       sound_clk_pins: sound_clk {
+               groups = "audio_clk_a_a";
+               function = "audio_clk";
+       };
+
        usb0_pins: usb0 {
                groups = "usb0";
                function = "usb0";
@@ -295,6 +318,30 @@
        };
 };
 
+&rcar_sound {
+       pinctrl-0 = <&sound_clk_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+
+       /* Single DAI */
+       #sound-dai-cells = <0>;
+
+       ports {
+               rsnd_port0: port@0 {
+                       rsnd_endpoint0: endpoint {
+                               remote-endpoint = <&dw_hdmi0_snd_in>;
+
+                               dai-format = "i2s";
+                               bitclock-master = <&rsnd_endpoint0>;
+                               frame-master = <&rsnd_endpoint0>;
+
+                               playback = <&ssi2>;
+                       };
+               };
+       };
+};
+
 &rwdt {
        timeout-sec = <60>;
        status = "okay";