linux-kernel - Re: [PATCH V5 02/18] pinctrl: tegra: Add suspend and resume support

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Message-ID: <fbfb2167-d0b3-b66a-d1ba-378c877817ed@gmail.com>
Date:   Sat, 29 Jun 2019 15:38:20 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Sowjanya Komatineni <skomatineni@...dia.com>,
        thierry.reding@...il.com, jonathanh@...dia.com, tglx@...utronix.de,
        jason@...edaemon.net, marc.zyngier@....com,
        linus.walleij@...aro.org, stefan@...er.ch, mark.rutland@....com
Cc:     pdeschrijver@...dia.com, pgaikwad@...dia.com, sboyd@...nel.org,
        linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org,
        jckuo@...dia.com, josephl@...dia.com, talho@...dia.com,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        mperttunen@...dia.com, spatra@...dia.com, robh+dt@...nel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH V5 02/18] pinctrl: tegra: Add suspend and resume support

29.06.2019 2:00, Sowjanya Komatineni пишет:
> 
> On 6/28/19 5:05 AM, Dmitry Osipenko wrote:
>> 28.06.2019 14:56, Dmitry Osipenko пишет:
>>> 28.06.2019 5:12, Sowjanya Komatineni пишет:
>>>> This patch adds support for Tegra pinctrl driver suspend and resume.
>>>>
>>>> During suspend, context of all pinctrl registers are stored and
>>>> on resume they are all restored to have all the pinmux and pad
>>>> configuration for normal operation.
>>>>
>>>> Acked-by: Thierry Reding <treding@...dia.com>
>>>> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
>>>> ---
>>>>   int tegra_pinctrl_probe(struct platform_device *pdev,
>>>>               const struct tegra_pinctrl_soc_data *soc_data);
>>>>   #endif
>>>> diff --git a/drivers/pinctrl/tegra/pinctrl-tegra210.c
>>>> b/drivers/pinctrl/tegra/pinctrl-tegra210.c
>>>> index 0b56ad5c9c1c..edd3f4606cdb 100644
>>>> --- a/drivers/pinctrl/tegra/pinctrl-tegra210.c
>>>> +++ b/drivers/pinctrl/tegra/pinctrl-tegra210.c
>>>> @@ -1571,6 +1571,7 @@ static struct platform_driver tegra210_pinctrl_driver = {
>>>>       .driver = {
>>>>           .name = "tegra210-pinctrl",
>>>>           .of_match_table = tegra210_pinctrl_of_match,
>>>> +        .pm = &tegra_pinctrl_pm,
>>>>       },
>>>>       .probe = tegra210_pinctrl_probe,
>>>>   };
>>>>
>>> Could you please address my comments in the next revision if there will be one?
>>>
>> Also, what about adding ".pm' for other Tegras? I'm sure Jon could test them for you.
> 
> This series is for Tegra210 SC7 entry/exit along with clocks and pinctrl suspend
> resume needed for Tegra210 basic sc7 entry and exit.
> 
> This includes pinctrl, pmc changes, clock-tegra210 driver changes all w.r.t Tegra210
> platforms specific.
> 
> Suspend/resume support for other Tegras will be in separate patch series.

Okay, fair enough.