linux-kernel - Re: [Freedreno] [PATCH 2/5] genpd/gdsc: inherit display powerdomain from bootloader

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Message-ID: <CAOCk7NpOK60ipDzD1Sn+VT_eO3jFikVJ0kCO4T18UBZOGcCFaA@mail.gmail.com>
Date:   Mon, 1 Jul 2019 12:08:38 -0600
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     Rob Clark <robdclark@...il.com>
Cc:     "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        Rob Clark <robdclark@...omium.org>,
        aarch64-laptops@...ts.linaro.org,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Len Brown <len.brown@...el.com>, linux-pm@...r.kernel.org,
        Stephen Boyd <sboyd@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michael Turquette <mturquette@...libre.com>,
        Kevin Hilman <khilman@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        lkml <linux-kernel@...r.kernel.org>,
        Andy Gross <agross@...nel.org>, Pavel Machek <pavel@....cz>,
        freedreno <freedreno@...ts.freedesktop.org>,
        linux-clk@...r.kernel.org
Subject: Re: [Freedreno] [PATCH 2/5] genpd/gdsc: inherit display powerdomain
 from bootloader

On Sun, Jun 30, 2019 at 9:02 AM Rob Clark <robdclark@...il.com> wrote:
>
> From: Rob Clark <robdclark@...omium.org>
>
> Mark power domains that may be enabled by bootloader, and which should
> not be disabled until a driver takes them over.
>
> This keeps efifb alive until the real driver can be probed.  In a distro
> kernel, the driver will most likely built as a module, and not probed
> until we get to userspace (after late_initcall)
>
> Signed-off-by: Rob Clark <robdclark@...omium.org>

Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@...il.com>