linux-kernel - Re: [PATCH] arm64: dts: meson-sm1: add spdifin spdifout nodes

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Message-ID: <b4b62e3d-dc43-a56c-06c5-78e6ee7f6303@baylibre.com>
Date:   Wed, 12 Jan 2022 09:57:51 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Artem Lapkin <email2tema@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        christianshewitt@...il.com, art@...das.com, nick@...das.com,
        gouwa@...das.com
Subject: Re: [PATCH] arm64: dts: meson-sm1: add spdifin spdifout nodes

On 03/01/2022 16:35, Jerome Brunet wrote:
> 
> On Wed 15 Dec 2021 at 11:02, Artem Lapkin <email2tema@...il.com> wrote:
> 
>> Add spdifin spdifout nodes for Amlogic SM1 SoCs.
>              ^ add (same in the title)
> 
>>
>> Signed-off-by: Artem Lapkin <art@...das.com>
>> ---
>>
>> SPDIF IN and SPDIF OUT both tested and works fine for VIM3L (meson-sm1)
>> same as for VIM3 (meson-g12)
>>
>> SPDIF in and SPDIF OUT both pins available via GPIO header (SPDIF_OUT PIN
>> 13 spdif_ao_out_pins and SPDIF_IN PIN 35 - same PWM_F spdif_in_h_pins)
>>
>> https://lore.kernel.org/linux-arm-kernel/1jtuhwvqxa.fsf@starbuckisacylon.baylibre.com/t/
>>
>> ALSA spdifin test example
>> =========================
>>
>> # arecord -fS16_LE -r48000 -c2 -Dplug:spdifin
>>
>> # cat .asoundrc
>> pcm.spdifin {
>> type iec958
>> slave {
>> pcm "hw:0,1"
>> format IEC958_SUBFRAME_LE
>> }
>> }
>>
>> DT sound card configs for testing
>> =================================
>>
>> &spdifout {
>>     pinctrl-0 = <&spdif_ao_out_pins>;
>>     pinctrl-names = "default";
>>     status = "okay";
>> };
>>
>> &spdifin {
>>     pinctrl-0 = <&spdif_in_h_pins>;
>>     pinctrl-names = "default";
>>     status = "okay";
>> };
>>
>> ...
>>     spdif_dit: audio-codec-1 {
>> 	#sound-dai-cells = <0>;
>> 	compatible = "linux,spdif-dit";
>> 	status = "okay";
>> 	sound-name-prefix = "DIT";
>>     };
>>
>>     spdif_dir: audio-codec-2 {
>> 	#sound-dai-cells = <0>;
>> 	compatible = "linux,spdif-dir";
>> 	status = "okay";
>> 	sound-name-prefix = "DIR";
>>     };
>> ...
>> 	audio-routing = ...
>> 		"TODDR_B IN 3", "SPDIFIN Capture",
>> 		"SPDIFOUT IN 0", "FRDDR_A OUT 3";
>>
>> ...
>> 	dai-link-10 {
>> 	    sound-dai = <&spdifout>;
>>
>> 	    codec-0 {
>> 		sound-dai = <&spdif_dit>;
>> 	    };
>> 	};
>>
>> 	/* spdif or toslink interface */
>> 	dai-link-11 {
>> 	    sound-dai = <&spdifin>;
>>
>> 	    codec-0 {
>> 		sound-dai = <&spdif_dir>;
>> 	    };
>> 	};
>> ...
>>
>> ---
>>  arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 27 ++++++++++++++++++++++
>>  1 file changed, 27 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
>> index 3d8b1f4f2001..1e0adf259d61 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
>> @@ -356,6 +356,33 @@ tdmin_lb: audio-controller@3c0 {
>>  			status = "disabled";
>>  		};
>>  
>> +		spdifin: audio-controller@400 {
>> +			compatible = "amlogic,g12a-spdifin",
>> +			"amlogic,axg-spdifin";
>> +			reg = <0x0 0x400 0x0 0x30>;
>> +			#sound-dai-cells = <0>;
>> +			sound-name-prefix = "SPDIFIN";
>> +			interrupts = <GIC_SPI 151 IRQ_TYPE_EDGE_RISING>;
>> +			clocks = <&clkc_audio AUD_CLKID_SPDIFIN>,
>> +			<&clkc_audio AUD_CLKID_SPDIFIN_CLK>;
>> +			clock-names = "pclk", "refclk";
>> +			resets = <&clkc_audio AUD_RESET_SPDIFIN>;
>> +			status = "disabled";
>> +		};
>> +
>> +		spdifout: audio-controller@480 {
> 
> Node should still be named spdifout_a, even if the spdifout_b is not added yet
> 
>> +			compatible = "amlogic,g12a-spdifout",
>> +			"amlogic,axg-spdifout";
>> +			reg = <0x0 0x480 0x0 0x50>;
>> +			#sound-dai-cells = <0>;
>> +			sound-name-prefix = "SPDIFOUT";
> 
> Same here
> 
>> +			clocks = <&clkc_audio AUD_CLKID_SPDIFOUT>,
>> +			<&clkc_audio AUD_CLKID_SPDIFOUT_CLK>;
>> +			clock-names = "pclk", "mclk";
>> +			resets = <&clkc_audio AUD_RESET_SPDIFOUT>;
>> +			status = "disabled";
>> +		};
>> +
>>  		tdmout_a: audio-controller@500 {
>>  			compatible = "amlogic,sm1-tdmout";
>>  			reg = <0x0 0x500 0x0 0x40>;
> 

All these fixed while applying, no need to send a new version.

Neil