arm64: dts: rockchip: enable I2S codec on rk3399-puma-haikou

Enable the NXP SGTL5000 audio codec on the RK3399-Q7 EVK baseboard
Haikou.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

2 files changed, 77 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 8fd0d7ba1dc9..7d3e8bfd51dd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -61,6 +61,30 @@
                 };
         };
 
+        i2s0-sound {
+                compatible = "simple-audio-card";
+                simple-audio-card,format = "i2s";
+                simple-audio-card,name = "Haikou,I2S-codec";
+                simple-audio-card,mclk-fs = <512>;
+
+                simple-audio-card,codec {
+                        clocks = <&sgtl5000_clk>;
+                        sound-dai = <&sgtl5000>;
+                };
+
+                simple-audio-card,cpu {
+                        bitclock-master;
+                        frame-master;
+                        sound-dai = <&i2s0>;
+                };
+        };
+
+        sgtl5000_clk: sgtl5000-oscillator  {
+                        compatible = "fixed-clock";
+                        #clock-cells = <0>;
+                        clock-frequency  = <24576000>;
+        };
+
         dc_12v: dc-12v {
                 compatible = "regulator-fixed";
                 regulator-name = "dc_12v";
@@ -80,6 +104,16 @@
                 vin-supply = <&dc_12v>;
         };
 
+        vcc5v0_baseboard: vcc5v0-baseboard {
+                compatible = "regulator-fixed";
+                regulator-name = "vcc5v0_baseboard";
+                regulator-always-on;
+                regulator-boot-on;
+                regulator-min-microvolt = <5000000>;
+                regulator-max-microvolt = <5000000>;
+                vin-supply = <&dc_12v>;
+        };
+
         vcc5v0_otg: vcc5v0-otg-regulator {
                 compatible = "regulator-fixed";
                 enable-active-high;
@@ -89,6 +123,24 @@
                 regulator-name = "vcc5v0_otg";
                 regulator-always-on;
         };
+
+        vdda_codec: vdda-codec {
+                compatible = "regulator-fixed";
+                regulator-name = "vdda_codec";
+                regulator-boot-on;
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+                vin-supply = <&vcc5v0_baseboard>;
+        };
+
+        vddd_codec: vddd-codec {
+                compatible = "regulator-fixed";
+                regulator-name = "vddd_codec";
+                regulator-boot-on;
+                regulator-min-microvolt = <1600000>;
+                regulator-max-microvolt = <1600000>;
+                vin-supply = <&vcc5v0_baseboard>;
+        };
 };
 
 &i2c1 {
@@ -110,6 +162,17 @@
 &i2c4 {
         status = "okay";
         clock-frequency = <400000>;
+
+        sgtl5000: codec@0a {
+                compatible = "fsl,sgtl5000";
+                reg = <0x0a>;
+                clocks = <&sgtl5000_clk>;
+                #sound-dai-cells = <0>;
+                VDDA-supply = <&vdda_codec>;
+                VDDIO-supply = <&vdda_codec>;
+                VDDD-supply = <&vddd_codec>;
+                status = "okay";
+        };
 };
 
 &i2c6 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index fc913e2d962f..4a2d06abe9c1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -443,6 +443,20 @@
         status = "okay";
 };
 
+/*
+ * As Q7 does not specify neither a global nor a RX clock for I2S these
+ * signals are not used. Furthermore I2S0_LRCK_RX is used as GPIO.
+ * Therefore we have to redefine the i2s0_2ch_bus definition to prevent
+ * conflicts.
+ */
+&i2s0_2ch_bus {
+        rockchip,pins =
+                <RK_GPIO3 RK_PD0 RK_FUNC_1 &pcfg_pull_none>,
+                <RK_GPIO3 RK_PD2 RK_FUNC_1 &pcfg_pull_none>,
+                <RK_GPIO3 RK_PD3 RK_FUNC_1 &pcfg_pull_none>,
+                <RK_GPIO3 RK_PD7 RK_FUNC_1 &pcfg_pull_none>;
+};
+
 &io_domains {
         status = "okay";
         bt656-supply = <&vcc_1v8>;