linux-kernel - Re: [PATCH 07/10] backlight: qcom-wled: Provide enabled

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Message-ID: <20211005092120.pe3z6jzs4bzc2zrx@maple.lan>
Date:   Tue, 5 Oct 2021 10:21:20 +0100
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>
Cc:     phone-devel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Lee Jones <lee.jones@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        Pavel Dubrova <pashadubrova@...il.com>,
        Kiran Gunda <kgunda@...eaurora.org>,
        Courtney Cavin <courtney.cavin@...ymobile.com>,
        Bryan Wu <cooloney@...il.com>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 07/10] backlight: qcom-wled: Provide enabled_strings
 default for wled 4 and 5

On Mon, Oct 04, 2021 at 09:27:38PM +0200, Marijn Suijten wrote:
> Only wled 3 sets a sensible default that allows operating this driver
> with just qcom,num-strings in the DT; wled 4 and 5 require
> qcom,enabled-strings to be provided otherwise enabled_strings remains
> zero-initialized, resuling in every string-specific register write
> (currently only the setup and config functions, brightness follows in a
> future patch) to only configure the zero'th string multiple times.
> 
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>

Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>