linux-kernel - Re: [PATCH v2] arm64: dts: rockchip: Add analog audio output on quartz64-b

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Message-ID: <10732790.V6xDz3LDya@archbook>
Date:   Sat, 20 Aug 2022 01:51:12 +0200
From:   Nicolas Frattaroli <frattaroli.nicolas@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: rockchip: Add analog audio output on quartz64-b

On Donnerstag, 21. Juli 2022 10:33:00 CEST Nicolas Frattaroli wrote:
> This adds the necessary device tree changes to enable analog
> audio output on the PINE64 Quartz64 Model B with its RK809
> codec.
> 
> The headphone detection pin is left out for now because I couldn't
> get it to work and am not sure if it even matters, but for future
> reference: It's pin GPIO4 RK_PC4, named HP_DET_L_GPIO4_C4 in the
> schematic.
> 
> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@...il.com>
> ---
> Changes since v1:
>  - use generic node name for the simple-audio-card node
> 
> ---
>  .../boot/dts/rockchip/rk3566-quartz64-b.dts   | 32 ++++++++++++++++++-
>  1 file changed, 31 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
> index 02d5f5a8ca03..3897980d69d1 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-b.dts
> @@ -42,6 +42,21 @@ led-user {
>  		};
>  	};
>  
> +	sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,name = "Analog RK809";
> +		simple-audio-card,mclk-fs = <256>;
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&i2s1_8ch>;
> +		};
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&rk809>;
> +		};
> +	};
> +
>  	sdio_pwrseq: sdio-pwrseq {
>  		status = "okay";
>  		compatible = "mmc-pwrseq-simple";
> @@ -177,11 +192,16 @@ rk809: pmic@20 {
>  		reg = <0x20>;
>  		interrupt-parent = <&gpio0>;
>  		interrupts = <RK_PA7 IRQ_TYPE_LEVEL_LOW>;
> +		assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
> +		assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
> +		clock-names = "mclk";
> +		clocks = <&cru I2S1_MCLKOUT_TX>;
>  		clock-output-names = "rk808-clkout1", "rk808-clkout2";
>  
>  		pinctrl-names = "default";
> -		pinctrl-0 = <&pmic_int>;
> +		pinctrl-0 = <&pmic_int>, <&i2s1m0_mclk>;
>  		rockchip,system-power-controller;
> +		#sound-dai-cells = <0>;
>  		wakeup-source;
>  		#clock-cells = <1>;
>  
> @@ -420,6 +440,16 @@ &i2c5 {
>  	status = "disabled";
>  };
>  
> +&i2s1_8ch {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2s1m0_sclktx
> +		     &i2s1m0_lrcktx
> +		     &i2s1m0_sdi0
> +		     &i2s1m0_sdo0>;
> +	rockchip,trcm-sync-tx-only;
> +	status = "okay";
> +};
> +
>  &mdio1 {
>  	rgmii_phy1: ethernet-phy@1 {
>  		compatible = "ethernet-phy-ieee802.3-c22";
> 

Gentle ping, it has been a month with no response so I assume
there's nothing egregiously wrong here.