arm64: dts: imx8mp: Add analog audio output on i.MX8MP EVK

Enable SAI3 on i.MX8MP EVK, add WM8960 codec binding and regulator.
This is all that is needed to get analog audio output operational
on i.MX8MP EVK.

Acked-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 7816853162b3fa3388d1b93b2a2ad3b41d146243..fa37ce89f8d3d76da32017bd5b6d55a0ab279b57 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -40,6 +40,17 @@
                clock-frequency = <100000000>;
        };
 
+       reg_audio_pwr: regulator-audio-pwr {
+               compatible = "regulator-fixed";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_audio_pwr_reg>;
+               regulator-name = "audio-pwr";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+
        reg_can1_stby: regulator-can1-stby {
                compatible = "regulator-fixed";
                regulator-name = "can1-stby";
@@ -83,6 +94,37 @@
                gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
                enable-active-high;
        };
+
+       sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,name = "wm8960-audio";
+               simple-audio-card,format = "i2s";
+               simple-audio-card,frame-master = <&cpudai>;
+               simple-audio-card,bitclock-master = <&cpudai>;
+               simple-audio-card,widgets =
+                       "Headphone", "Headphone Jack",
+                       "Speaker", "External Speaker",
+                       "Microphone", "Mic Jack";
+               simple-audio-card,routing =
+                       "Headphone Jack", "HP_L",
+                       "Headphone Jack", "HP_R",
+                       "External Speaker", "SPK_LP",
+                       "External Speaker", "SPK_LN",
+                       "External Speaker", "SPK_RP",
+                       "External Speaker", "SPK_RN",
+                       "LINPUT1", "Mic Jack",
+                       "LINPUT3", "Mic Jack",
+                       "Mic Jack", "MICB";
+
+               cpudai: simple-audio-card,cpu {
+                       sound-dai = <&sai3>;
+               };
+
+               simple-audio-card,codec {
+                       sound-dai = <&wm8960>;
+               };
+
+       };
 };
 
 &flexspi {
@@ -344,6 +386,18 @@
        pinctrl-0 = <&pinctrl_i2c3>;
        status = "okay";
 
+       wm8960: codec@1a {
+               compatible = "wlf,wm8960";
+               reg = <0x1a>;
+               #sound-dai-cells = <0>;
+               clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>;
+               clock-names = "mclk";
+               wlf,shared-lrclk;
+               wlf,hp-cfg = <3 2 3>;
+               wlf,gpio-cfg = <1 3>;
+               SPKVDD1-supply = <&reg_audio_pwr>;
+       };
+
        pca6416: gpio@20 {
                compatible = "ti,tca6416";
                reg = <0x20>;
@@ -422,6 +476,16 @@
        status = "okay";
 };
 
+&sai3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_sai3>;
+       assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
+       assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+       assigned-clock-rates = <12288000>;
+       fsl,sai-mclk-direction-output;
+       status = "okay";
+};
+
 &snvs_pwrkey {
        status = "okay";
 };
@@ -499,6 +563,12 @@
 };
 
 &iomuxc {
+       pinctrl_audio_pwr_reg: audiopwrreggrp {
+               fsl,pins = <
+                       MX8MP_IOMUXC_SAI3_RXC__GPIO4_IO29               0xd6
+               >;
+       };
+
        pinctrl_eqos: eqosgrp {
                fsl,pins = <
                        MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC                             0x2
@@ -668,6 +738,16 @@
                >;
        };
 
+       pinctrl_sai3: sai3grp {
+               fsl,pins = <
+                       MX8MP_IOMUXC_SAI3_TXFS__AUDIOMIX_SAI3_TX_SYNC   0xd6
+                       MX8MP_IOMUXC_SAI3_TXC__AUDIOMIX_SAI3_TX_BCLK    0xd6
+                       MX8MP_IOMUXC_SAI3_RXD__AUDIOMIX_SAI3_RX_DATA00  0xd6
+                       MX8MP_IOMUXC_SAI3_TXD__AUDIOMIX_SAI3_TX_DATA00  0xd6
+                       MX8MP_IOMUXC_SAI3_MCLK__AUDIOMIX_SAI3_MCLK      0xd6
+               >;
+       };
+
        pinctrl_uart2: uart2grp {
                fsl,pins = <
                        MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX    0x140