linux-kernel - Re: [PATCH] soc: rockchip: power-domain: remove PM clocks

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Message-ID: <CAMuHMdWLL9CxmxSLsqs1QX0dDHVhp4NrW4Me2EZaZE_bJ330bA@mail.gmail.com>
Date:   Wed, 28 Feb 2018 13:17:39 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Jeffy Chen <jeffy.chen@...k-chips.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tomasz Figa <tfiga@...omium.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Heiko Stuebner <heiko@...ech.de>,
        Caesar Wang <wxt@...k-chips.com>,
        Elaine Zhang <zhangqing@...k-chips.com>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH] soc: rockchip: power-domain: remove PM clocks

Hi Jeffy,

On Wed, Feb 28, 2018 at 12:11 PM, Jeffy Chen <jeffy.chen@...k-chips.com> wrote:
> Currently we are adding all of the attached devices' clocks as pm clocks
> and enable them when powering on the power domain.
>
> This seems unnecessary, because those clocks are already controlled in
> the devices' drivers with better error handling.
>
> Tested on my chromebook minnie(rk3288) and chromebook kevin(rk3399).
>
> Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>

Thanks for your patch!

Just wondering: so you prefer to handle the clocks explicitly in all drivers,
instead of delegating this task to Runtime PM?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds