ARM: dts: gose: Enable sound PIO support in device tree

Enable sound PIO support in the r8a7793/gose device tree.

Based on similar work for the r8a7791/koelsch by Kuninori Morimoto.

Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7793-gose.dts b/arch/arm/boot/dts/r8a7793-gose.dts
index 0b4cc8d..395ea63 100644 (file)
--- a/arch/arm/boot/dts/r8a7793-gose.dts
+++ b/arch/arm/boot/dts/r8a7793-gose.dts
@@ -8,6 +8,17 @@
  * kind, whether express or implied.
  */
 
+/*
+ * SSI-AK4643
+ *
+ * SW1: 1: AK4643
+ *      2: CN22
+ *      3: ADV7511
+ *
+ * This command is required when Playback/Capture
+ *
+ *     amixer set "LINEOUT Mixer DACL" on
+ */
 /dts-v1/;
 #include "r8a7793.dtsi"
 #include <dt-bindings/gpio/gpio.h>
@@ -130,6 +141,30 @@
                };
        };
 
+       audio_clock: clock {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <11289600>;
+               clock-output-names = "audio_clock";
+       };
+
+       rsnd_ak4643: sound {
+               compatible = "simple-audio-card";
+
+               simple-audio-card,format = "left_j";
+               simple-audio-card,bitclock-master = <&sndcodec>;
+               simple-audio-card,frame-master = <&sndcodec>;
+
+               sndcpu: simple-audio-card,cpu {
+                       sound-dai = <&rcar_sound>;
+               };
+
+               sndcodec: simple-audio-card,codec {
+                       sound-dai = <&ak4643>;
+                       clocks = <&audio_clock>;
+               };
+       };
+
        hdmi-out {
                compatible = "hdmi-connector";
                type = "a";
@@ -218,6 +253,16 @@
                renesas,groups = "qspi_ctrl", "qspi_data4";
                renesas,function = "qspi";
        };
+
+       sound_pins: sound {
+               renesas,groups = "ssi0129_ctrl", "ssi0_data", "ssi1_data";
+               renesas,function = "ssi";
+       };
+
+       sound_clk_pins: sound_clk {
+               renesas,groups = "audio_clk_a";
+               renesas,function = "audio_clk";
+       };
 };
 
 &ether {
@@ -300,6 +345,12 @@
        status = "okay";
        clock-frequency = <100000>;
 
+       ak4643: codec@12 {
+               compatible = "asahi-kasei,ak4643";
+               #sound-dai-cells = <0>;
+               reg = <0x12>;
+       };
+
        hdmi@39 {
                compatible = "adi,adv7511w";
                reg = <0x39>;
@@ -338,3 +389,29 @@
                pagesize = <16>;
        };
 };
+
+&rcar_sound {
+       pinctrl-0 = <&sound_pins &sound_clk_pins>;
+       pinctrl-names = "default";
+
+       /* Single DAI */
+       #sound-dai-cells = <0>;
+
+       status = "okay";
+
+       rcar_sound,dai {
+               dai0 {
+                       playback = <&ssi0>;
+                       capture  = <&ssi1>;
+               };
+       };
+};
+
+&ssi0 {
+       pio-transfer;
+};
+
+&ssi1 {
+       pio-transfer;
+       shared-pin;
+};