linux-kernel - Re: [next] db845c: WARNING: CPU: 5 PID: 8 at drivers/clk/clk-divider.c:139 divider_recalc

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Date:   Thu, 7 Apr 2022 23:26:40 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Maxime Ripard <maxime@...no.tech>
Cc:     linux-clk <linux-clk@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-stm32@...md-mailman.stormreply.com,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, regressions@...ts.linux.dev,
        gabriel.fernandez@...s.st.com,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Nicolas Dechesne <nicolas.dechesne@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [next] db845c: WARNING: CPU: 5 PID: 8 at drivers/clk/clk-divider.c:139
 divider_recalc_rate

Hi Maxime

On Thu, 7 Apr 2022 at 19:16, Maxime Ripard <maxime@...no.tech> wrote:
>
> Hi Naresh,
>
> On Thu, Apr 07, 2022 at 05:12:09PM +0530, Naresh Kamboju wrote:
> > On Thu, 7 Apr 2022 at 13:24, Maxime Ripard <maxime@...no.tech> wrote:
> > >
> > > Hi,
> > >
> > > > > I'm not sure if it's feasible, but if it is, it looks like something
> > > > > that could be fixed by the patch pasted here:
> > > > >
> > > > > https://lore.kernel.org/linux-clk/20220401122736.5yvanksa4pla7uql@houat/
> > > > > Could you test it?
> > > >
> > > > I have tested the single line patch and reported problems not fixed.
> > >
> > > Could you test this branch?
> > > https://github.com/mripard/linux/tree/rpi/clk-improvements-more-fixes
> >
> > I have tested your tree and branch.
> > I saw more clk prints in the boot log and did not notice the reported warning.
>
> I just pushed a new version of my branch? It should get rid of most of
> the side effects (and logs) you were seeing.

The reported problem has been fixed.
Please check this boot log and test log [1].
FYI, "clk_ignore_unused" has been used in Kernel boot args.

https://lkft.validation.linaro.org/scheduler/job/4862043#L2712


- Naresh

>
> Thanks!
> Maxime