linux-kernel - Re: [PATCH v3 5/9] backlight: qcom-wled: Override default length with qcom,enabled-strings

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Message-ID: <20211116115928.yhabka5uaha3cyec@maple.lan>
Date:   Tue, 16 Nov 2021 11:59:28 +0000
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>,
        Rob Herring <robh+dt@...nel.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>,
        Bryan Wu <cooloney@...il.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v3 5/9] backlight: qcom-wled: Override default length
 with qcom,enabled-strings

On Mon, Nov 15, 2021 at 09:34:55PM +0100, Marijn Suijten wrote:
> The length of qcom,enabled-strings as property array is enough to
> determine the number of strings to be enabled, without needing to set
> qcom,num-strings to override the default number of strings when less
> than the default (which is also the maximum) is provided in DT.
> 
> This also introduces an extra warning when qcom,num-strings is set,
> denoting that it is not necessary to set both anymore.  It is usually
> more concise to set just qcom,num-length when a zero-based, contiguous
> range of strings is needed (the majority of the cases), or to only set
> qcom,enabled-strings when a specific set of indices is desired.
> 
> Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3")
> 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>


Daniel.