linux-kernel - Re: [PATCH v8 08/21] clk: tegra: periph: Add restore

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Message-ID: <20190812095035.GG8903@ulmo>
Date:   Mon, 12 Aug 2019 11:50:35 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     jonathanh@...dia.com, tglx@...utronix.de, jason@...edaemon.net,
        marc.zyngier@....com, linus.walleij@...aro.org, stefan@...er.ch,
        mark.rutland@....com, 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, digetx@...il.com,
        devicetree@...r.kernel.org, rjw@...ysocki.net,
        viresh.kumar@...aro.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v8 08/21] clk: tegra: periph: Add restore_context support

On Thu, Aug 08, 2019 at 04:46:47PM -0700, Sowjanya Komatineni wrote:
> This patch implements restore_context support for clk-periph and
> clk-sdmmc-mux clock operations to restore clock parent and rates
> on system resume.
> 
> During system suspend, core power goes off and looses the context
> of the Tegra clock controller registers.
> 
> So on system resume, clocks parent and rate are restored back to
> the context before suspend based on cached data.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
> ---
>  drivers/clk/tegra/clk-periph.c    | 18 ++++++++++++++++++
>  drivers/clk/tegra/clk-sdmmc-mux.c | 12 ++++++++++++
>  2 files changed, 30 insertions(+)

Acked-by: Thierry Reding <treding@...dia.com>

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