linux-kernel - Re: [PATCH 5/6] clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU

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Message-ID: <CAOMZO5C_g5bO-yqhoLbb6geUcmzi4necjdQ_P2tROq2vzEPOqQ@mail.gmail.com>
Date:   Sat, 27 Jul 2019 17:17:50 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Guido Günther <agx@...xcpu.org>
Cc:     Daniel Baluta <daniel.baluta@...il.com>,
        Anson Huang <Anson.Huang@....com>,
        Mark Rutland <mark.rutland@....com>,
        Carlo Caione <ccaione@...libre.com>,
        "Angus Ainslie (Purism)" <angus@...ea.ca>,
        Leonard Crestez <leonard.crestez@....com>,
        linux-clk <linux-clk@...r.kernel.org>,
        Abel Vesa <abel.vesa@....com>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        dl-linux-imx <Linux-imx@....com>,
        "rui.zhang" <rui.zhang@...el.com>,
        Michael Turquette <mturquette@...libre.com>,
        Devicetree List <devicetree@...r.kernel.org>,
        linux-pm@...r.kernel.org, Sascha Hauer <s.hauer@...gutronix.de>,
        Eduardo Valentin <edubezval@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Lucas Stach <l.stach@...gutronix.de>
Subject: Re: [PATCH 5/6] clk: imx8mq: Remove CLK_IS_CRITICAL flag for IMX8MQ_CLK_TMU_ROOT

Hi Guido,

On Sat, Jul 27, 2019 at 3:26 PM Guido Günther <agx@...xcpu.org> wrote:

> I noticed a boot hang yesterday on next-20190726 when loading the
> qoriq_thermal which I worked around by blacklisting it. The
> fsl,imx8mq-tmu node specifies a clock (IMX8MQ_CLK_TMU_ROOT) but does not
> seem to enable, shouldn't it do so?

Yes, I think you are right.

I don't have access to a imx8mq board at the moment, but something
like below would probably help:
http://code.bulix.org/pd88jp-812381

If it helps, I can send it as a formal patch.

Regards,

Fabio Estevam