linux-kernel - Re: [PATCH V2 0/8] opp: Unconditionally call dev_pm_opp_of_remove

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Date:   Mon, 31 Aug 2020 16:39:39 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     rnayak@...eaurora.org, Adrian Hunter <adrian.hunter@...el.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Fabio Estevam <festevam@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Qiang Yu <yuq825@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Rob Clark <robdclark@...il.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sean Paul <sean@...rly.run>, Shawn Guo <shawnguo@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>, Nishanth Menon <nm@...com>,
        Douglas Anderson <dianders@...omium.org>,
        Naresh Kamboju <naresh.kamboju@...aro.org>,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        lima@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-spi@...r.kernel.org
Subject: Re: [PATCH V2 0/8] opp: Unconditionally call
 dev_pm_opp_of_remove_table()

On 28-08-20, 11:37, Viresh Kumar wrote:
> Hello,
> 
> This cleans up some of the user code around calls to
> dev_pm_opp_of_remove_table().
> 
> All the patches can be picked by respective maintainers directly except
> for the last patch, which needs the previous two to get merged first.
> 
> These are based for 5.9-rc1.
 
> Viresh Kumar (8):
>   cpufreq: imx6q: Unconditionally call dev_pm_opp_of_remove_table()
>   drm/lima: Unconditionally call dev_pm_opp_of_remove_table()
>   drm/msm: Unconditionally call dev_pm_opp_of_remove_table()
>   mmc: sdhci-msm: Unconditionally call dev_pm_opp_of_remove_table()
>   spi: spi-geni-qcom: Unconditionally call dev_pm_opp_of_remove_table()
>   spi: spi-qcom-qspi: Unconditionally call dev_pm_opp_of_remove_table()
>   tty: serial: qcom_geni_serial: Unconditionally call
>     dev_pm_opp_of_remove_table()
>   qcom-geni-se: remove has_opp_table

During testing by some of the Linaro folks on linux-next, we found out
that there was a bug in the OPP core (which makes the kernel crash in
some corner cases with these patches) for which I have sent a fix
today which should be part of 5.9-rc4:

https://lore.kernel.org/lkml/922ff0759a16299e24cacfc981ac07914d8f1826.1598865786.git.viresh.kumar@linaro.org/

Please apply the patches over rc4 only once it comes out (I will
confirm by that time once the patch gets merged). Else you guys can
provide your Ack and I can take the patches through OPP tree.

-- 
viresh