linux-kernel - Re: [PATCH 1/7] drivers: soc: qcom: rpmpd: Fix MSM8976 power domains setup

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Message-ID: <55e72667-dec5-dab0-9d1b-dc127fe4d065@collabora.com>
Date:   Mon, 24 Jul 2023 10:48:30 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Adam Skladowski <a39.skl@...il.com>
Cc:     phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] drivers: soc: qcom: rpmpd: Fix MSM8976 power domains
 setup

Il 23/07/23 16:06, Adam Skladowski ha scritto:
> Downstream kernel parses resource names based on pm8950-rpm-regulator.dtsi
> in such file qcom,resource-name takes three values: smpa,ldoa and clk0.
> First appearance of RWSC/RWSM point to msm-4.4 kernel

Are we sure that RWSC/RWSM being present isn't firmware-related?
What is the observed issue, why are you removing RWSC/RWSM and what did you
solve with that?

If it's just about dropping unused resources, that may be unused only on
firmware versions older than "X".

> which is way newer than what this platform was shipped with (msm-3.10).
> For the max_state downstream code limit value to TURBO inside dts
> with only one turbo_high being placed in msm-thermal bindings.
> One of effects of requesting TURBO_HIGH vote is rebooting of device
> which happens during voting inside WCNSS/IRIS,
> this behavior was observed on LeEco S2 smartphone.
> Fix regulator setup and drop unused resources.

That's fine, but you're missing a Fixes tag, which is required, being this a fix.

Regards,
Angelo