linux-kernel - Re: [PATCH] soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader

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Date:   Thu, 9 Nov 2017 11:42:46 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Kevin Hilman <khilman@...libre.com>
Cc:     arm-soc <arm@...nel.org>, Carlo Caione <carlo@...one.org>,
        linux-pm@...r.kernel.org,
        "open list:ARM/Amlogic Meson SoC support" 
        <linux-amlogic@...ts.infradead.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: Re: [PATCH] soc: amlogic: meson-gx-pwrc-vpu: fix power-off when
 powered by bootloader

On Thu, Nov 9, 2017 at 1:50 AM, Kevin Hilman <khilman@...libre.com> wrote:
> Arnd, Olof,
>
> Neil Armstrong <narmstrong@...libre.com> writes:
>
>> In the case the VPU power domain has been powered on by the bootloader
>> and no driver are attached to this power domain, the genpd will power it
>> off after a certain amount of time, but the clocks hasn't been enabled
>> by the kernel itself and the power-off will trigger some faults.
>> This patch enable the clocks to have a coherent state for an eventual
>> poweroff and switches to the pm_domain_always_on_gov governor.
>>
>> Fixes: 75fcb5ca4b46 ("soc: amlogic: add Meson GX VPU Domains driver")
>> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
>
> Tested-by: Kevin Hilman <khilman@...libre.com>
>
> This fixes a patch that's currently in arm-soc next/drivers (or
> amlogic/drivers-2 to be precise.)
>
> If it's not too late, please feel free to apply directly.  If not, I
> will queue up for v4.15-rc fixes cycle.

Applied to next/drivers, thanks!

      Arnd