linux-kernel - Re: [PATCH v3 0/5] PM / Domains: Remove gpd_dev_ops.active

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Date:   Wed, 08 Nov 2017 01:17:27 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Kevin Hilman <khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Simon Horman <horms@...ge.net.au>,
        Magnus Damm <magnus.damm@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Heiko Stuebner <heiko@...ech.de>, linux-pm@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/5] PM / Domains: Remove gpd_dev_ops.active_wakeup() callback

On Tuesday, November 7, 2017 1:48:10 PM CET Geert Uytterhoeven wrote:
> 	Hi Rafael, Ulf, Kevin,
> 
> It is quite common for PM Domains to require slave devices to be kept
> active during system suspend if they are to be used as wakeup sources.
> To enable this, currently each PM Domain or driver has to provide its
> own gpd_dev_ops.active_wakeup() callback.
> 
> All existing callbacks either return always true, or a fixed value
> depending on the PM Domain.
> 
> Hence this patch series simplifies active wakeup handling by replacing
> the callback by a flag:
>   - Patch 1 adds a new new flag GENPD_FLAG_ACTIVE_WAKEUP, to be set by
>     PM Domain drivers that want to use the new handling,
>   - Patches 2-4 convert all existing users of the callback to the new
>     flag,
>   - Patch 5 removes the callback.
> 
> This series was extracted from "[PATCH 00/10] PM / Domain: renesas: Fix
> active wakeup behavior", and retains only PM Domain changes to existing
> drivers.
> 
> Changes compared to v2:
>   - Add Acked-by, Reviewed-by,
>   - Drop RFC status from dependent patches, as everything can go in
>     through the pm tree.
> 
> Changes compared to v1 (most suggested by Ulf):
>   - Use the flag in se instead of setting up an "always true" callback,
>   - Convert the mediatek and rockchip PM Domain drivers,
>   - Remove the callback.
> 
> Thanks for applying for v4.15!

Queued up for 4.15, thanks!

Rafael