linux-kernel - Re: [PATCH v1 2/2] cpuidle: tegra: Check whether PMC is ready

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Message-ID: <8d61d4d5-8e4b-5c18-923c-eceb954e8d5d@linaro.org>
Date:   Sat, 14 Aug 2021 12:37:41 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Dmitry Osipenko <digetx@...il.com>, linux-pm@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 2/2] cpuidle: tegra: Check whether PMC is ready

On 11/08/2021 11:49, Thierry Reding wrote:
> On Mon, Jul 19, 2021 at 12:27:06AM +0300, Dmitry Osipenko wrote:
>> Check whether PMC is ready before proceeding with the cpuidle registration.
>> This fixes racing with the PMC driver probe order, which results in a
>> disabled deepest CC6 idling state if cpuidle driver is probed before the
>> PMC.
>>
>> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
>> ---
>>  drivers/cpuidle/cpuidle-tegra.c | 3 +++
>>  1 file changed, 3 insertions(+)
> 
> Rafael, Daniel,
> 
> would you mind if I took this into the Tegra tree? It's got a dependency
> on the PMC driver, which usually goes via the Tegra tree already, and
> there's nothing cpuidle-specific in here, it's all Tegra-specific
> integration quirks.

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>


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