linux-kernel - Re: [PATCH v2] clk: qcom: gcc-msm8994: Remove NoC clocks

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Date:   Thu, 17 Feb 2022 16:16:26 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] clk: qcom: gcc-msm8994: Remove NoC clocks

Quoting Konrad Dybcio (2022-02-17 15:24:08)
> Just like in commit 05cf3ec00d460b50088d421fb878a0f83f57e262
> ("clk: qcom: gcc-msm8996: Drop (again) gcc_aggre1_pnoc_ahb_clk")
> adding NoC clocks turned out to be a huge mistake, as they cause a lot of
> issues at little benefit (basically letting Linux know about their
> children's frequencies), especially when mishandled or misconfigured.
> 
> Adding these ones broke SDCC approx 99 out of 100 times, but that somehow
> went unnoticed. To prevent further issues like this one, remove them.
> 
> This commit is effectively a revert of 74a33fac3aab77558ca0d80c9935
> (clk: qcom: gcc-msm8994: Add missing NoC clocks) with ABI preservation.
> 
> Fixes: 74a33fac3aab ("clk: qcom: gcc-msm8994: Add missing NoC clocks")
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>

Is boot broken on msm8994? I can take this for clk-fixes then.