linux-kernel - Re: [PATCH v1 5/5] riscv: dts: starfive: Add JH7110 PWM-DAC support

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Message-ID: <2a0154ec-7949-f1b1-760f-3ba64d2cff3f@linaro.org>
Date:   Mon, 26 Jun 2023 17:37:35 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Hal Feng <hal.feng@...rfivetech.com>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor@...nel.org>,
        Walker Chen <walker.chen@...rfivetech.com>,
        Xingyu Wu <xingyu.wu@...rfivetech.com>,
        Emil Renner Berthing <emil.renner.berthing@...onical.com>
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 5/5] riscv: dts: starfive: Add JH7110 PWM-DAC support

On 26/06/2023 13:09, Hal Feng wrote:
> Add PWM-DAC support for StarFive JH7110 SoC.
> 
> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> ---
>  .../jh7110-starfive-visionfive-2.dtsi         | 50 +++++++++++++++++++
>  arch/riscv/boot/dts/starfive/jh7110.dtsi      | 13 +++++
>  2 files changed, 63 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> index 19b5954ee72d..5ca66a65e722 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> @@ -36,6 +36,34 @@ gpio-restart {
>  		gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
>  		priority = <224>;
>  	};
> +
> +	pwmdac_dit: pwmdac-dit {
> +		compatible = "starfive,jh7110-pwmdac-dit";
> +		#sound-dai-cells = <0>;
> +	};
> +
> +	sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "StarFive-PWMDAC-Sound-Card";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		simple-audio-card,dai-link@0 {
> +			reg = <0>;
> +			format = "left_j";
> +			bitclock-master = <&sndcpu0>;
> +			frame-master = <&sndcpu0>;
> +			status = "okay";

Drop

> +
> +			sndcpu0: cpu {
> +				sound-dai = <&pwmdac>;
> +			};
> +
> +			codec {
> +				sound-dai = <&pwmdac_dit>;

You said it is a transmitter, not a codec...


Best regards,
Krzysztof