Re: [PATCH v2 2/2] arm64: dts: qcom: eliza-cqs-evk: Enable sound card support with WSA8845 and DMIC

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 7/13/26 2:18 PM, Ravi Hothi wrote:
> Enable the sound card on the Eliza CQS EVK platform, including the
> WSA8845 external speaker path and DMIC microphone capture via VA macro.
> 
> Enable the required LPASS WSA macro, VA macro and SoundWire controller
> along with the necessary pinctrl configurations for DMIC and WSA
> SoundWire interfaces.
> 
> Signed-off-by: Ravi Hothi <ravi.hothi@oss.qualcomm.com>
> ---

[...]

> +	sound {
> +		compatible = "qcom,eliza-sndcard", "qcom,sm8450-sndcard";
> +		model = "eliza-cqs-evk";

Is there a reason only the CQS EVK gets audio support?
i.e. is this setup not common across all the EVKs?
> +
> +		audio-routing = "SpkrLeft IN", "WSA_SPK1 OUT",
> +				"SpkrRight IN", "WSA_SPK2 OUT",
> +				"VA DMIC0", "vdd-micb",
> +				"VA DMIC1", "vdd-micb",
> +				"VA DMIC2", "vdd-micb",
> +				"VA DMIC3", "vdd-micb",
> +				"VA DMIC4", "vdd-micb",
> +				"VA DMIC5", "vdd-micb",
> +				"VA DMIC6", "vdd-micb",
> +				"VA DMIC7", "vdd-micb";

Are there actually 8 DMICs?

> +
> +		va-dai-link {
> +			link-name = "VA Capture";
> +
> +			cpu {
> +				sound-dai = <&q6apmbedai VA_CODEC_DMA_TX_0>;
> +			};
> +
> +			codec {

'co'dec < 'cp'u

[...]

> +	dmic_eldo: regulator-dmic-eldo {
> +		compatible = "regulator-fixed";
> +		regulator-name = "dmic-eldo";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		gpio = <&pm7550_gpios 8 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +		vin-supply = <&vreg_bob>;
> +		regulator-boot-on;

Is it really boot-on?

> +	};
> +};
> +
> +&tlmm {

Label references should be sorted alphabetically

> +	spkr_1_sd_n_active: spkr-1-sd-n-active-state {
> +		pins = "gpio59";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +		output-low;

TLMM pins should not assert output state in the pinconf, the driver will
take care of that through the GPIOD APIs

On a note, these normally go through LPASS_TLMM, but I'm going to guess
these pins are not muxable to ADSP?

Konrad