linux-kernel - Re: [PATCH v6 6/8] clk: tegra20: Turn EMC clock gate into divider

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Message-ID: <20181025143058.GJ21521@ulmo>
Date:   Thu, 25 Oct 2018 16:30:58 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Peter De Schrijver <pdeschrijver@...dia.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Prashant Gaikwad <pgaikwad@...dia.com>,
        linux-tegra@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 6/8] clk: tegra20: Turn EMC clock gate into divider

On Sun, Oct 21, 2018 at 09:30:50PM +0300, Dmitry Osipenko wrote:
> Kernel should never gate the EMC clock as it causes immediate lockup, so
> removing clk-gate functionality doesn't affect anything. Turning EMC clk
> gate into divider allows to implement glitch-less EMC scaling, avoiding
> reparenting to a backup clock.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> Acked-by: Peter De Schrijver <pdeschrijver@...dia.com>
> Acked-by: Stephen Boyd <sboyd@...nel.org>
> ---
>  drivers/clk/tegra/clk-tegra20.c | 36 ++++++++++++++++++++++++---------
>  1 file changed, 26 insertions(+), 10 deletions(-)

Applied to for-4.21/clk, thanks.

Thierry

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