linux-kernel - Re: [PATCH 4/5] arm64: dts: ti: k3-am62a7-sk: Enable audio on AM62A

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Message-ID: <20230802133502.zjvf7sslmcuayg5z@defog>
Date:   Wed, 2 Aug 2023 08:35:02 -0500
From:   Nishanth Menon <nm@...com>
To:     Jai Luthra <j-luthra@...com>
CC:     Devarsh Thakkar <devarsht@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jayesh Choudhary <j-choudhary@...com>
Subject: Re: [PATCH 4/5] arm64: dts: ti: k3-am62a7-sk: Enable audio on AM62A

On 17:10-20230802, Jai Luthra wrote:
> Hi Devarsh,
> 
> On Aug 02, 2023 at 16:15:12 +0530, Devarsh Thakkar wrote:
> > Hi Jai,
> > 
> > Thanks for the patch.
> > 
> > On 31/07/23 18:14, Jai Luthra wrote:
> > > Add nodes for audio codec and sound card, enable the audio serializer
> > > (McASP1) under use and update pinmux.
> > > 
> > > Link: https://www.ti.com/lit/zip/sprr459
> > > Signed-off-by: Jai Luthra <j-luthra@...com>
> > > Reviewed-by: Jayesh Choudhary <j-choudhary@...com>
> > > ---
> > >  arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 77 +++++++++++++++++++++++++++++++++
> > >  1 file changed, 77 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> > > index 752c2f640f63..5f68d2eefe0f 100644
> > > --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> > > +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> > > @@ -125,6 +125,41 @@ led-0 {
> > >  			default-state = "off";
> > >  		};
> > >  	};
> > > +
> > > +	tlv320_mclk: clk-0 {
> > > +		#clock-cells = <0>;
> > > +		compatible = "fixed-clock";
> > > +		clock-frequency = <12288000>;
> > > +	};
> > > +
> > > +	codec_audio: sound {
> > > +		compatible = "simple-audio-card";
> > > +		simple-audio-card,name = "AM62Ax-SKEVM";
> > 
> > In my opinion better to give the codec name instead of board name here.
> 
> I agree, maybe calling it "sk-am62a-tlv320aic3106" would be the most 
> clear option.
> 
> Running a quick ripgrep on next tree:
> 
> $ rg "simple-audio-card,name" arch/*/boot/dts/
> 
> I see a healthy mix of using both board and/or codec name here - with TI 
> almost always using the board name. Maybe we can change the convention, 
> but it would be a good idea to at least update SK-AM62 as well to use 
> the new convention.
> 
> Is it okay with you if it is handled as a separate series?

Will this cleanup of existing board break any userspace? If so, NO and
follow existing "board" convention - I'd like to maintain consistency,
even if that is not exactly clean! If not, cleanup in a later series
is fine, but please make sure to follow through this week - with this
patch following the convention of choice.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D