linux-kernel - Re: [PATCH] ARM: dts: imx6sll-evk: Add audio sound card node

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Date:   Mon, 17 Aug 2020 10:47:08 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Shengjiu Wang <shengjiu.wang@....com>
Cc:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: dts: imx6sll-evk: Add audio sound card node

Hi Shengjiu,

On Thu, Aug 6, 2020 at 8:55 AM Shengjiu Wang <shengjiu.wang@....com> wrote:
>
> Add audio sound card node, which depends on codec node,
> SSI node, audmux node.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> ---
>  arch/arm/boot/dts/imx6sll-evk.dts | 74 +++++++++++++++++++++++++++++++
>  1 file changed, 74 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts
> index 5ace9e6acf85..45bf5e61e960 100644
> --- a/arch/arm/boot/dts/imx6sll-evk.dts
> +++ b/arch/arm/boot/dts/imx6sll-evk.dts
> @@ -132,6 +132,29 @@ panel_in: endpoint {
>                         };
>                 };
>         };
> +
> +       sound {
> +               compatible = "fsl,imx6sl-evk-wm8962", "fsl,imx-audio-wm8962";
> +               model = "wm8962-audio";
> +               audio-cpu = <&ssi2>;
> +               audio-codec = <&codec>;
> +               audio-routing =
> +                       "Headphone Jack", "HPOUTL",
> +                       "Headphone Jack", "HPOUTR",
> +                       "Ext Spk", "SPKOUTL",
> +                       "Ext Spk", "SPKOUTR",
> +                       "AMIC", "MICBIAS",
> +                       "IN3R", "AMIC";
> +               mux-int-port = <2>;
> +               mux-ext-port = <3>;
> +               hp-det-gpio = <&gpio4 24 GPIO_ACTIVE_LOW>;
> +       };
> +};
> +
> +&audmux {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_audmux3>;
> +       status = "okay";
>  };
>
>  &cpu0 {
> @@ -247,6 +270,27 @@ vgen6_reg: vgen6 {
>         };
>  };
>
> +&i2c3 {
> +       clock-frequency = <100000>;
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_i2c3>;
> +       status = "okay";
> +
> +       codec: wm8962@1a {

Node names should be generic:

wm8962: audio-codec@1a

> +               compatible = "wlf,wm8962";
> +               reg = <0x1a>;
> +               clocks = <&clks IMX6SLL_CLK_EXTERN_AUDIO>;
> +               DCVDD-supply = <&vgen3_reg>;
> +               DBVDD-supply = <&reg_aud3v>;
> +               AVDD-supply = <&vgen3_reg>;
> +               CPVDD-supply = <&vgen3_reg>;
> +               MICVDD-supply = <&reg_aud3v>;
> +               PLLVDD-supply = <&vgen3_reg>;
> +               SPKVDD1-supply = <&reg_aud4v>;
> +               SPKVDD2-supply = <&reg_aud4v>;
> +       };
> +};
> +
>  &lcdif {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_lcd>;
> @@ -273,6 +317,10 @@ &snvs_pwrkey {
>         status = "okay";
>  };
>
> +&ssi2 {
> +       status = "okay";
> +};
> +
>  &uart1 {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_uart1>;
> @@ -329,6 +377,25 @@ &wdog1 {
>  };
>
>  &iomuxc {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_hog>;
> +
> +       pinctrl_audmux3: audmux3grp {
> +               fsl,pins = <
> +                       MX6SLL_PAD_AUD_TXC__AUD3_TXC            0x4130b0
> +                       MX6SLL_PAD_AUD_TXFS__AUD3_TXFS          0x4130b0
> +                       MX6SLL_PAD_AUD_TXD__AUD3_TXD            0x4110b0
> +                       MX6SLL_PAD_AUD_RXD__AUD3_RXD            0x4130b0
> +                       MX6SLL_PAD_AUD_MCLK__AUDIO_CLK_OUT      0x4130b0
> +               >;
> +       };
> +
> +       pinctrl_hog: hoggrp {
> +               fsl,pins = <
> +                       MX6SLL_PAD_GPIO4_IO24__GPIO4_IO24 0x17059 /* HP DETECT */

Please place it under audmux3 group for consistency.