linux-kernel - Re: [PATCH] Revert "clk: qcom: cpu-8996: simplify the cpu_clk_notifier

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Message-ID: <e2eg3zk2sc7pzzlybf6wlauw7fsks3oe6jy3wvbxkgicbo3s2g@tks2pgigtbza>
Date: Wed, 17 Dec 2025 18:39:08 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Christopher Obbard <christopher.obbard@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] Revert "clk: qcom: cpu-8996: simplify the
 cpu_clk_notifier_cb"

On Wed, Dec 17, 2025 at 01:22:59PM +0100, Konrad Dybcio wrote:
> On 12/14/25 8:26 PM, Christopher Obbard wrote:
> > Hi Konrad,
> > 
> > On Mon, 8 Dec 2025 at 22:36, Christopher Obbard
> > <christopher.obbard@...aro.org> wrote:
> >> Apologies for the late response, I was in the process of setting some
> >> more msm8096 boards up again in my new workspace to test this
> >> properly.
> >>
> >>
> >>> It may be that your board really has a MSM/APQ8x96*SG* which is another
> >>> name for the PRO SKU, which happens to have a 2 times wider divider, try
> >>>
> >>> `cat /sys/bus/soc/devices/soc0/soc_id`
> >>
> >> I read the soc_id from both of the msm8096 boards I have:
> >>
> >> Open-Q™ 820 µSOM Development Kit (APQ8096)
> >> ```
> >> $ cat /sys/bus/soc/devices/soc0/soc_id
> >> 291
> >> ```
> >> (FWIW this board is not in mainline yet; but boots with a DT similar
> >> enough to the db820c. I have a patch in my upstream backlog enabling
> >> that board; watch this space)
> >>
> >> DragonBoard™ 820c (APQ8096)
> >> ```
> >> $ cat /sys/bus/soc/devices/soc0/soc_id
> >> 291
> >> ```
> > 
> > Sorry to nag, but are you able to look into this soc_id and see if
> > it's the PRO SKU ?
> 
> No, it's the "normal" one
> 
> Maybe Dmitry would know a little more what's going on

Unfortunately, no.

Maybe, the best option would be to really land the revert.


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>



-- 
With best wishes
Dmitry