linux-kernel - Re: [PATCH] backlight: qcom-wled: Use sink

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Message-ID: <20210317091600.GJ701493@dell>
Date:   Wed, 17 Mar 2021 09:16:00 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Marijn Suijten <marijn.suijten@...ainline.org>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Martin Botka <martin.botka@...ainline.org>,
        Kiran Gunda <kgunda@...eaurora.org>,
        Obeida Shamoun <oshmoun100@...glemail.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...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] backlight: qcom-wled: Use sink_addr for sync toggle

On Sun, 14 Mar 2021, Marijn Suijten wrote:

> From: Obeida Shamoun <oshmoun100@...glemail.com>
> 
> WLED3_SINK_REG_SYNC is, as the name implies, a sink register offset.
> Therefore, use the sink address as base instead of the ctrl address.
> 
> This fixes the sync toggle on wled4, which can be observed by the fact
> that adjusting brightness now works.
> 
> It has no effect on wled3 because sink and ctrl base addresses are the
> same.  This allows adjusting the brightness without having to disable
> then reenable the module.
> 
> Signed-off-by: Obeida Shamoun <oshmoun100@...glemail.com>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
> Signed-off-by: Marijn Suijten <marijn.suijten@...ainline.org>
> ---
>  drivers/video/backlight/qcom-wled.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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