Enable sound PIO support on carrier board.

Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Fabrizio Castro <[email protected]>
Acked-by: Kuninori Morimoto <[email protected]>
---
v1-->v2
 * Reworked sorting

 arch/arm/boot/dts/iwg20d-q7-common.dtsi | 46 +++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm/boot/dts/iwg20d-q7-common.dtsi 
b/arch/arm/boot/dts/iwg20d-q7-common.dtsi
index 2070b14..ed67201 100644
--- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi
+++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi
@@ -34,6 +34,22 @@
                regulator-always-on;
        };
 
+       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>;
+               };
+       };
+
        vcc_sdhi1: regulator-vcc-sdhi1 {
                compatible = "regulator-fixed";
 
@@ -166,6 +182,11 @@
                power-source = <1800>;
        };
 
+       sound_pins: sound {
+               groups = "ssi0129_ctrl", "ssi0_data", "ssi1_data";
+               function = "ssi";
+       };
+
        usb0_pins: usb0 {
                groups = "usb0";
                function = "usb0";
@@ -177,6 +198,22 @@
        };
 };
 
+&rcar_sound {
+       pinctrl-0 = <&sound_pins>;
+       pinctrl-names = "default";
+       status = "okay";
+
+       /* Single DAI */
+       #sound-dai-cells = <0>;
+
+       rcar_sound,dai {
+               dai0 {
+                       playback = <&ssi1>;
+                       capture = <&ssi0>;
+               };
+       };
+};
+
 &scif0 {
        pinctrl-0 = <&scif0_pins>;
        pinctrl-names = "default";
@@ -205,6 +242,15 @@
        status = "okay";
 };
 
+&ssi0 {
+       pio-transfer;
+};
+
+&ssi1 {
+       pio-transfer;
+       shared-pin;
+};
+
 &usbphy {
        status = "okay";
 };
-- 
1.9.1

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