ARM: dts: iwg22d-sodimm: Sound PIO support

Enable sound PIO support on carrier board.

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

diff --git a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
index 5d4b7d2..b6521da 100644 (file)
--- a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
+++ b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
@@ -32,6 +32,21 @@
                clock-frequency = <26000000>;
        };
 
+       rsnd_sgtl5000: sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,format = "i2s";
+               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 = <&sgtl5000>;
+               };
+       };
+
        vccq_sdhi0: regulator-vccq-sdhi0 {
                compatible = "regulator-gpio";
 
@@ -141,6 +156,11 @@
                power-source = <3300>;
        };
 
+       sound_pins: sound {
+               groups = "ssi34_ctrl", "ssi3_data", "ssi4_data";
+               function = "ssi";
+       };
+
        usb0_pins: usb0 {
                groups = "usb0";
                function = "usb0";
@@ -152,6 +172,23 @@
        };
 };
 
+&rcar_sound {
+       pinctrl-0 = <&sound_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       /* Single DAI */
+
+       #sound-dai-cells = <0>;
+
+       rcar_sound,dai {
+               dai0 {
+                       playback = <&ssi3>;
+                       capture = <&ssi4>;
+               };
+       };
+};
+
 &scif4 {
        pinctrl-0 = <&scif4_pins>;
        pinctrl-names = "default";
@@ -169,6 +206,15 @@
        status = "okay";
 };
 
+&ssi3 {
+       pio-transfer;
+};
+
+&ssi4 {
+       pio-transfer;
+       shared-pin;
+};
+
 &usbphy {
        status = "okay";
 };