Re: [PATCH v2 13/21] arm64: dts: apple: t8103-j45x: Add headset jack nodes

[Ajay Kumar Nandam]

On 10/4/2026 11:33 AM, James Calligeros wrote:
> The M1 iMacs integrate Apple-specific variants of the TI TAS2770
> and Cirrus CS42L42. Since it is not yet safe to expose the speakers
> on these machines, add the headset jack nodes and advertise them
> to the machine driver via the sound node.
>
> Signed-off-by: James Calligeros <jcalligeros99@xxxxxxxxx>
> ---
>   arch/arm64/boot/dts/apple/t8103-j456.dts | 38 +++++++++++++++++++++++++
>   arch/arm64/boot/dts/apple/t8103-j457.dts | 38 +++++++++++++++++++++++++
>   2 files changed, 76 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/apple/t8103-j456.dts b/arch/arm64/boot/dts/apple/t8103-j456.dts
> index 090c97bb781b..1fc74ebf9ab2 100644
> --- a/arch/arm64/boot/dts/apple/t8103-j456.dts
> +++ b/arch/arm64/boot/dts/apple/t8103-j456.dts
> @@ -88,3 +88,41 @@ &pcie0_dart_1 {
>   &pcie0_dart_2 {
>   	status = "okay";
>   };
> +
> +&i2c1 {
> +	status = "okay";
> +
> +	jack_codec: codec@48 {
> +		compatible = "cirrus,cs42l83";
> +		reg = <0x48>;
> +		interrupts-extended = <&pinctrl_ap 183 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&pinctrl_nub 11 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <0>;
> +		sound-name-prefix = "Jack";
> +		cirrus,ts-inv = <1>;
> +	};
> +};
> +
> +/ {
> +	sound: sound {
> +		compatible = "apple,j456-macaudio";
> +		model = "iMac J456";
> +
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		dai-link@1 {
> +			reg = <1>;
> +
> +			link-name = "Headphone Jack";
> +
> +			codec {
> +				sound-dai = <&jack_codec>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&mca 2>;
> +			};
> +		};
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/apple/t8103-j457.dts b/arch/arm64/boot/dts/apple/t8103-j457.dts
> index ebddde75455c..d8ea6bb53b3f 100644
> --- a/arch/arm64/boot/dts/apple/t8103-j457.dts
> +++ b/arch/arm64/boot/dts/apple/t8103-j457.dts
> @@ -69,3 +69,41 @@ ethernet0: ethernet@0,0 {
>   &pcie0_dart_2 {
>   	status = "okay";
>   };
> +
> +&i2c1 {
> +	status = "okay";
> +
> +	jack_codec: codec@48 {
> +		compatible = "cirrus,cs42l83";
> +		reg = <0x48>;
> +		interrupts-extended = <&pinctrl_ap 183 IRQ_TYPE_LEVEL_LOW>;
> +		reset-gpios = <&pinctrl_nub 11 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <0>;
> +		sound-name-prefix = "Jack";
> +		cirrus,ts-inv = <1>;
> +	};
> +};
> +
> +/ {
> +	sound: sound {
> +		compatible = "apple,j457-macaudio";
> +		model = "iMac J457";
> +

I don't see 'apple,j457-macaudio' in the macaudio driver's OF match 
table.The driver comment instead says J457 is compatible with
'apple,j456-macaudio'.

Should this node use a fallback compatible,

e.g.
  compatible = "apple,j457-macaudio", "apple,j456-macaudio";

or should the driver add an explicit `apple,j457-macaudio` match entry?


Thanks
Ajay Kumar Nandam

> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		dai-link@1 {
> +			reg = <1>;
> +
> +			link-name = "Headphone Jack";
> +
> +			codec {
> +				sound-dai = <&jack_codec>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&mca 2>;
> +			};
> +		};
> +	};
> +};