Re: [PATCH 2/2] arm64: dts: meson: vim3: enable hdmi audio loopback

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On Mon 07 Dec 2020 at 10:53, Jerome Brunet <jbrunet@xxxxxxxxxxxx> wrote:

> Enable audio capture frontends and a tdm decoder.
> This makes it possible to loopback the audio played on the hdmi codec,
> which is the only output interface at the moment.
>
> Of course, one TODDR device would be enough to do that but since
> the 3 FRDDRs are enabled on the playback side, let's do the same on the
> capture side.
>
> Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
> ---
>  .../boot/dts/amlogic/meson-khadas-vim3.dtsi   | 41 +++++++++++++++++--
>  1 file changed, 37 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> index 12465c4becc7..4cf2c193d168 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> @@ -166,11 +166,16 @@ hdmi_connector_in: endpoint {
>  	sound {
>  		compatible = "amlogic,axg-sound-card";
>  		model = "G12B-KHADAS-VIM3";
> -		audio-aux-devs = <&tdmout_a>;
> +		audio-aux-devs = <&tdmin_a>, <&tdmout_a>;
>  		audio-routing = "TDMOUT_A IN 0", "FRDDR_A OUT 0",
>  				"TDMOUT_A IN 1", "FRDDR_B OUT 0",
>  				"TDMOUT_A IN 2", "FRDDR_C OUT 0",
> -				"TDM_A Playback", "TDMOUT_A OUT";
> +				"TDM_A Playback", "TDMOUT_A OUT",
> +				"TDMIN_A IN 1", "TDM_A Capture",

Oops this is wrong

> +				"TDMIN_A IN 3", "TDM_A Loopback",

And this correct for the vim3 but not the vim3l ...
Please don't take this patch. Patch 1 can still be applied though.

> +				"TODDR_A IN 0", "TDMIN_A OUT",
> +				"TODDR_B IN 0", "TDMIN_A OUT",
> +				"TODDR_C IN 0", "TDMIN_A OUT";
>  
>  		assigned-clocks = <&clkc CLKID_MPLL2>,
>  				  <&clkc CLKID_MPLL0>,
> @@ -193,8 +198,20 @@ dai-link-2 {
>  			sound-dai = <&frddr_c>;
>  		};
>  
> -		/* 8ch hdmi interface */
>  		dai-link-3 {
> +			sound-dai = <&toddr_a>;
> +		};
> +
> +		dai-link-4 {
> +			sound-dai = <&toddr_b>;
> +		};
> +
> +		dai-link-5 {
> +			sound-dai = <&toddr_c>;
> +		};
> +
> +		/* 8ch hdmi interface */
> +		dai-link-6 {
>  			sound-dai = <&tdmif_a>;
>  			dai-format = "i2s";
>  			dai-tdm-slot-tx-mask-0 = <1 1>;
> @@ -209,7 +226,7 @@ codec {
>  		};
>  
>  		/* hdmi glue */
> -		dai-link-4 {
> +		dai-link-7 {
>  			sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>;
>  
>  			codec {
> @@ -449,10 +466,26 @@ &tdmif_a {
>  	status = "okay";
>  };
>  
> +&tdmin_a {
> +	status = "okay";
> +};
> +
>  &tdmout_a {
>  	status = "okay";
>  };
>  
> +&toddr_a {
> +	status = "okay";
> +};
> +
> +&toddr_b {
> +	status = "okay";
> +};
> +
> +&toddr_c {
> +	status = "okay";
> +};
> +
>  &tohdmitx {
>  	status = "okay";
>  };




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