linux-kernel - Re: [PATCH] clk: rockchip: Set "ignore unused" for PMU M0 clocks on rk3399

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Message-ID: <CABxcv=kzW9SvrWYNasqCDkV7D6Y2zq+oRuqoPFdWuaWUhPehEA@mail.gmail.com>
Date:   Wed, 15 Feb 2017 12:27:59 -0300
From:   Javier Martinez Canillas <javier@...hile0.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Heiko Stuebner <heiko@...ech.de>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        jwerner@...omium.org, hl@...k-chips.com, dbasehore@...omium.org,
        zhengxing@...k-chips.com,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>, linux-clk@...r.kernel.org,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clk: rockchip: Set "ignore unused" for PMU M0 clocks on rk3399

Hello Doug,

On Tue, Feb 14, 2017 at 6:01 PM, Douglas Anderson <dianders@...omium.org> wrote:
> The PMU Cortex M0 on rk3399 is intended to be used for things like
> DDRFreq transitions, suspend/resume, and other things that are the
> purview of ARM Trusted Firmware and not the kernel.  As such, the
> kernel shouldn't be messing with the clocks.  Add CLK_IGNORE_UNUSED to
> these clocks.
>

Isn't CLK_IS_CRITICAL a more suitable flag for this case?

Best regards,
Javier