Re: [PATCH 2/2] arm64: dts: qcom/sdm845-shift-axolotl: Add audio support

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Hi Alexander,

On Donnerstag, 9. Juni 2022 11:54:12 CEST Alexander Martinz wrote:
> This patch adds audio support for the SHIFT6mq phone.
> 
> The primary microphone and headphone jack are handled by the
> SDM845 sound card and WCD9340 codec.
> 
> The primary speaker needs to go through the TFA9890 speaker
> amplifier.
> 
> Signed-off-by: Alexander Martinz <amartinz@xxxxxxxxxxxxxxx>
> Tested-by: Dylan Van Assche <me@xxxxxxxxxxxxxxxxx>
> ---
>  .../boot/dts/qcom/sdm845-shift-axolotl.dts    | 141 ++++++++++++++++++
>  1 file changed, 141 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts index
> fa72f23ef0c2..8c4967d6d0e3 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> @@ -8,6 +8,8 @@
> 
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
> +#include <dt-bindings/sound/qcom,q6asm.h>
>  #include "sdm845.dtsi"
>  #include "pm8998.dtsi"
>  #include "pmi8998.dtsi"
> @@ -492,6 +494,19 @@ touchscreen@38 {
>  	};
>  };
> 
> +&i2c11 {
> +	status = "okay";
> +	clock-frequency = <400000>;
> +
> +	tfa9890_codec: tfa9890@34 {
> +		compatible = "nxp,tfa9890";
> +		reg = <0x34>;
> +		vddd-supply = <&vreg_s4a_1p8>;
> +		reset-gpio = <&tlmm 7 0>;
> +		#sound-dai-cells = <1>;
> +	};
> +};
> +
>  &ipa {
>  	status = "okay";
> 
> @@ -530,6 +545,27 @@ volume_down_resin: resin {
>  	};
>  };
> 
> +&q6afedai {
> +	qi2s@22 {
> +		reg = <22>;
> +		qcom,sd-lines = <0>;
> +	};
> +};

While my patch hasn't been reviewed yet, I have proposed to change the magic 
number <22> to the constant QUATERNARY_MI2S_RX here in existing dts files which 
better describes what the reg here is.

https://lore.kernel.org/linux-arm-msm/20220603094710.64591-1-luca.weiss@xxxxxxxxxxxxx/

Maybe worth doing the same here for v2?

Regards
Luca






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