linux-kernel - Re: [PATCH 1/3] arm64: dts: rockchip: add ES8316 codec for Rock Pi4

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Message-ID: <d4e4e06e-6ddd-4707-232d-b829c1d646e6@gmail.com>
Date:   Fri, 18 Jun 2021 18:14:41 +0200
From:   Alex Bee <knaerzche@...il.com>
To:     Johan Jonker <jbx6244@...il.com>, Heiko Stuebner <heiko@...ech.de>
Cc:     devicetree@...r.kernel.org, balbi@...nel.org,
        gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        robh+dt@...nel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/3] arm64: dts: rockchip: add ES8316 codec for Rock Pi4

Hi Johan,

Am 18.06.21 um 11:54 schrieb Johan Jonker:
> Hi Alex,
>
> On 6/17/21 6:49 AM, Alex Bee wrote:
>> Rock Pi4 boards have the codec connected to i2s0 and it is accessible
>> via i2c1 address 0x11.
>> Add an audio-graph-card it.
>>
>> Signed-off-by: Alex Bee <knaerzche@...il.com>
>> ---
>>   .../boot/dts/rockchip/rk3399-rock-pi-4.dtsi   | 28 +++++++++++++++++++
>>   1 file changed, 28 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
>> index 7d0a7c697703..e5c1083174ff 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
>> +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
>> @@ -36,6 +36,12 @@ sdio_pwrseq: sdio-pwrseq {
>>   		reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
>>   	};
>>   
>> +	sound {
>> +		compatible = "audio-graph-card";
>> +		label = "rockchip,rk3399";
> See previous discussion:
>
> https://lore.kernel.org/linux-rockchip/e5ab2c62-ad00-4cdf-8b0a-24fda59c980b@gmail.com/
>
> It seems that aplay/linux? adds "-1" to it and removes the comma and
> "-", so we get:
>
> hdmisound
> rockchiprk3399
> rockchiprk339_1
>
> Shouldn't we label it with something that reflect the function/output.
> Shouldn't we standardize to SPDIF, HDMI and Analog similar to rk3318/rk3328?
> Make a shorter label without spaces or special chars, so that chars
> don't get removed?
>
> Proposal:
>
> Analog
> HDMI
> ES8316 <---
> SPDIF

OK - thanks for that, I wasn't aware.

I'll go for "Analog", since that seems to be the accepted solution for 
RockPro64 board and I think we should keep it the same across boards (on 
distro side it can get annoying if you need a couple of alsa configs 
with the same contents, just because audio card names are different).

Alex.

>
>
> Possible example solutions:
>
> [PATCH] arm64: dts: rockchip: more user friendly name of sound nodes
> https://lore.kernel.org/lkml/20210110151913.3615326-1-katsuhiro@katsuster.net/
>
> ===
>
> Johan
>
>> +		dais = <&i2s0_p0>;
>> +	};
>> +
>>   	vcc12v_dcin: dc-12v {
>>   		compatible = "regulator-fixed";
>>   		regulator-name = "vcc12v_dcin";
>> @@ -422,6 +428,20 @@ &i2c1 {
>>   	i2c-scl-rising-time-ns = <300>;
>>   	i2c-scl-falling-time-ns = <15>;
>>   	status = "okay";
>> +
>> +	es8316: codec@11 {
>> +		compatible = "everest,es8316";
>> +		reg = <0x11>;
>> +		clocks = <&cru SCLK_I2S_8CH_OUT>;
>> +		clock-names = "mclk";
>> +		#sound-dai-cells = <0>;
>> +
>> +		port {
>> +			es8316_p0_0: endpoint {
>> +				remote-endpoint = <&i2s0_p0_0>;
>> +			};
>> +		};
>> +	};
>>   };
>>   
>>   &i2c3 {
>> @@ -441,6 +461,14 @@ &i2s0 {
>>   	rockchip,capture-channels = <2>;
>>   	rockchip,playback-channels = <2>;
>>   	status = "okay";
>> +
>> +	i2s0_p0: port {
>> +		i2s0_p0_0: endpoint {
>> +			dai-format = "i2s";
>> +			mclk-fs = <256>;
>> +			remote-endpoint = <&es8316_p0_0>;
>> +		};
>> +	};
>>   };
>>   
>>   &i2s1 {
>>