linux-kernel - Re: [PATCH RESEND v5 16/16] arm64: dts: mediatek: add audio support for mt8365-evk

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Date: Wed, 19 Jun 2024 12:04:01 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Alexandre Mergnat <amergnat@...libre.com>,
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
 <matthias.bgg@...il.com>, Lee Jones <lee@...nel.org>,
 Flora Fu <flora.fu@...iatek.com>, Jaroslav Kysela <perex@...ex.cz>,
 Takashi Iwai <tiwai@...e.com>, Sumit Semwal <sumit.semwal@...aro.org>,
 Christian König <christian.koenig@....com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org, linux-media@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH RESEND v5 16/16] arm64: dts: mediatek: add audio support
 for mt8365-evk

Il 14/06/24 09:27, Alexandre Mergnat ha scritto:
> Add the sound node which is linked to the MT8365 SoC AFE and
> the MT6357 audio codec.
> 
> Update the file header.
> 
> Signed-off-by: Alexandre Mergnat <amergnat@...libre.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8365-evk.dts | 89 +++++++++++++++++++++++++++++
>   1 file changed, 89 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> index 50cbaefa1a99..1d5457f9a4c2 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8365-evk.dts
> @@ -4,6 +4,7 @@
>    * Authors:
>    * Fabien Parent <fparent@...libre.com>
>    * Bernhard Rosenkränzer <bero@...libre.com>
> + * Alexandre Mergnat <amergnat@...libre.com>
>    */
>   
>   /dts-v1/;
> @@ -86,6 +87,28 @@ optee_reserved: optee@...00000 {
>   			reg = <0 0x43200000 0 0x00c00000>;
>   		};
>   	};
> +
> +	sound: sound {
> +		compatible = "mediatek,mt8365-mt6357";
> +		pinctrl-names = "default",
> +				"dmic",
> +				"miso_off",
> +				"miso_on",
> +				"mosi_off",
> +				"mosi_on";
> +		pinctrl-0 = <&aud_default_pins>;
> +		pinctrl-1 = <&aud_dmic_pins>;
> +		pinctrl-2 = <&aud_miso_off_pins>;
> +		pinctrl-3 = <&aud_miso_on_pins>;
> +		pinctrl-4 = <&aud_mosi_off_pins>;
> +		pinctrl-5 = <&aud_mosi_on_pins>;
> +		mediatek,platform = <&afe>;
> +	};
> +};
> +
> +&afe {
> +	mediatek,dmic-mode = <1>;
> +	status = "okay";
>   };
>   
>   &cpu0 {
> @@ -178,9 +201,75 @@ &mt6357_pmic {
>   	interrupts-extended = <&pio 145 IRQ_TYPE_LEVEL_HIGH>;
>   	interrupt-controller;
>   	#interrupt-cells = <2>;
> +	vaud28-supply = <&mt6357_vaud28_reg>;
> +	audio-codec {
> +		mediatek,micbias0-microvolt = <1900000>;
> +		mediatek,micbias1-microvolt = <1700000>;
> +	};
>   };
>   
>   &pio {
> +	aud_default_pins: audiodefault-pins {
> +		pins {

clk-dat-pins

> +			pinmux = <MT8365_PIN_72_CMDAT4__FUNC_I2S3_BCK>,
> +				 <MT8365_PIN_73_CMDAT5__FUNC_I2S3_LRCK>,
> +				 <MT8365_PIN_74_CMDAT6__FUNC_I2S3_MCK>,
> +				 <MT8365_PIN_75_CMDAT7__FUNC_I2S3_DO>;
> +		};
> +	};
> +
> +	aud_dmic_pins: audiodmic-pins {
> +		pins {

clk-dat-pins

> +			pinmux = <MT8365_PIN_117_DMIC0_CLK__FUNC_DMIC0_CLK>,
> +				 <MT8365_PIN_118_DMIC0_DAT0__FUNC_DMIC0_DAT0>,
> +				 <MT8365_PIN_119_DMIC0_DAT1__FUNC_DMIC0_DAT1>;
> +		};
> +	};
> +
> +	aud_miso_off_pins: misooff-pins {
> +		pins {

clk-dat-pins

and same for all the others.

> +			pinmux = <MT8365_PIN_53_AUD_CLK_MISO__FUNC_GPIO53>,
> +				 <MT8365_PIN_54_AUD_SYNC_MISO__FUNC_GPIO54>,
> +				 <MT8365_PIN_55_AUD_DAT_MISO0__FUNC_GPIO55>,
> +				 <MT8365_PIN_56_AUD_DAT_MISO1__FUNC_GPIO56>;
> +			input-enable;
> +			bias-pull-down;
> +			drive-strength = <MTK_DRIVE_2mA>;
drive-strength = <2>;

> +		};
> +	};
> +
> +	aud_miso_on_pins: misoon-pins {
> +		pins {
> +			pinmux = <MT8365_PIN_53_AUD_CLK_MISO__FUNC_AUD_CLK_MISO>,
> +				 <MT8365_PIN_54_AUD_SYNC_MISO__FUNC_AUD_SYNC_MISO>,
> +				 <MT8365_PIN_55_AUD_DAT_MISO0__FUNC_AUD_DAT_MISO0>,
> +				 <MT8365_PIN_56_AUD_DAT_MISO1__FUNC_AUD_DAT_MISO1>;
> +			drive-strength = <MTK_DRIVE_6mA>;

= <6>;

> +		};
> +	};
> +
> +	aud_mosi_off_pins: mosioff-pins {
> +		pins {
> +			pinmux = <MT8365_PIN_49_AUD_CLK_MOSI__FUNC_GPIO49>,
> +				 <MT8365_PIN_50_AUD_SYNC_MOSI__FUNC_GPIO50>,
> +				 <MT8365_PIN_51_AUD_DAT_MOSI0__FUNC_GPIO51>,
> +				 <MT8365_PIN_52_AUD_DAT_MOSI1__FUNC_GPIO52>;
> +			input-enable;
> +			bias-pull-down;
> +			drive-strength = <MTK_DRIVE_2mA>;

= <2>;

> +		};
> +	};
> +
> +	aud_mosi_on_pins: mosion-pins {
> +		pins {
> +			pinmux = <MT8365_PIN_49_AUD_CLK_MOSI__FUNC_AUD_CLK_MOSI>,
> +				 <MT8365_PIN_50_AUD_SYNC_MOSI__FUNC_AUD_SYNC_MOSI>,
> +				 <MT8365_PIN_51_AUD_DAT_MOSI0__FUNC_AUD_DAT_MOSI0>,
> +				 <MT8365_PIN_52_AUD_DAT_MOSI1__FUNC_AUD_DAT_MOSI1>;
> +			drive-strength = <MTK_DRIVE_6mA>;

= <6>;

Cheers,
Angelo