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

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Date:   Wed, 08 Nov 2017 16:50:55 -0800
From:   Kevin Hilman <khilman@...libre.com>
To:     arm@...nel.org
Cc:     carlo@...one.org, linux-pm@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, 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

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.

Thanks,

Kevin