linux-kernel - Re: [PATCH v3 3/7] arm64: dts: meson: add audio playback to khadas-vim2

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Date:   Wed, 02 Dec 2020 16:48:37 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Christian Hewitt <christianshewitt@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...libre.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/7] arm64: dts: meson: add audio playback to
 khadas-vim2


On Mon 16 Nov 2020 at 07:20, Christian Hewitt <christianshewitt@...il.com> wrote:

> Add initial audio support limited to HDMI i2s.
>
> Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
> ---
>  .../dts/amlogic/meson-gxm-khadas-vim2.dts     | 44 +++++++++++++++++--
>  1 file changed, 41 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
> index bff8ec2c1c70..d4734220443c 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
> @@ -7,9 +7,9 @@
>  
>  /dts-v1/;
>  
> -#include <dt-bindings/input/input.h>
> -
>  #include "meson-gxm.dtsi"
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/sound/meson-aiu.h>

It's ok to do clean up or refactoring but it should not be done silently
or mixed with something unrelated

Same in the previous patch

>  
>  / {
>  	compatible = "khadas,vim2", "amlogic,s912", "amlogic,meson-gxm";
> @@ -145,6 +145,45 @@
>  		clock-frequency = <32768>;
>  		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
>  	};
> +
> +	sound {
> +		compatible = "amlogic,gx-sound-card";
> +		model = "GXM-KHADAS-VIM2";
> +		assigned-clocks = <&clkc CLKID_MPLL0>,
> +				  <&clkc CLKID_MPLL1>,
> +				  <&clkc CLKID_MPLL2>;
> +		assigned-clock-parents = <0>, <0>, <0>;
> +		assigned-clock-rates = <294912000>,
> +				       <270950400>,
> +				       <393216000>;
> +		status = "okay";
> +
> +		dai-link-0 {
> +			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
> +		};
> +
> +		dai-link-1 {
> +			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
> +			dai-format = "i2s";
> +			mclk-fs = <256>;
> +
> +			codec-0 {
> +				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
> +			};
> +		};
> +
> +		dai-link-2 {
> +			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
> +
> +			codec-0 {
> +				sound-dai = <&hdmi_tx>;
> +			};
> +		};
> +	};
> +};
> +
> +&aiu {
> +	status = "okay";
>  };
>  
>  &cec_AO {
> @@ -154,7 +193,6 @@
>  	hdmi-phandle = <&hdmi_tx>;
>  };
>  
> -

Same here

>  &cpu_cooling_maps {
>  	map0 {
>  		cooling-device = <&gpio_fan THERMAL_NO_LIMIT 1>;