linux-kernel - Re: [PATCH 5/6] arm64: dts: qcom: pm8916: Rename &wcd_codec -> &pm8916

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZHS_xTvBEzngiyrB@gerhold.net>
Date:   Mon, 29 May 2023 17:07:49 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/6] arm64: dts: qcom: pm8916: Rename &wcd_codec ->
 &pm8916_codec

On Mon, May 29, 2023 at 02:47:30PM +0100, Bryan O'Donoghue wrote:
> On 29/05/2023 13:47, Stephan Gerhold wrote:
> > All definitions in pm8916.dtsi use the &pm8916_ label suffix, only the
> 
> That's a prefix_ not a _suffix
> 

Right, my bad :)

> > codec uses the &wcd_codec label. &wcd_codec is confusing because the
> > codec on MSM8916 is split into a "wcd-digital" and "wcd-analog" part
> > and both could be described with &wcd_codec.
> > 
> > Let's just name it &pm8916_codec so it's consistent with all other PMIC
> > device nodes.
> 
> I'm not sure that's really consistent throught the dts/yaml TBH but, I do
> think the pm8196 name is more meaningful and clear.
> 
> What is wcd supposed to stand for anyway ? Its probably obvious but I prefer
> pm8916_code since that *is* obvious.
> 

I think WCD is the typical prefix Qualcomm uses for its dedicated audio
codec chips. There is no WCD* chip on MSM8916/PM8916 because the codec
was split and integrated partly into the SoC and partly into the PMIC.
I guess the "wcd" name just survived for historical reasons.

Looking at "WCD9335 Audio Codec - Device Specification - LM80-P2751-29
Rev. A - Table 1-2 Terms and acronyms" apparently

  WCD = WSP codec device
  WSP = Wafer-scale package
  WSA = WSP smart amplifier

> > Signed-off-by: Stephan Gerhold <stephan@...hold.net>
> 
> Seems like a valid change but, consider amending your commit log.
> 
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> 

Perhaps Bjorn can fix "prefix" -> "suffix" in the commit message when
applying, doesn't seem worth resending for that alone. (Will fix it of
course in case I send a v2 for other reasons!)

Thanks,
Stephan