linux-kernel - 5.5.6-rc1+: lockup on boot -- drm/i915/display: Force the state compute phase once to enable PSR

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Message-ID: <20200301151555.GA127893@light.dominikbrodowski.net>
Date:   Sun, 1 Mar 2020 16:15:55 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     "Souza, Jose" <jose.souza@...el.com>, airlied@...hat.com
Cc:     "Mun, Gwan-gyeong" <gwan-gyeong.mun@...el.com>,
        "Nikula, Jani" <jani.nikula@...el.com>,
        "s.zharkoff@...il.com" <s.zharkoff@...il.com>,
        "boris.brezillon@...labora.com" <boris.brezillon@...labora.com>,
        "airlied@...hat.com" <airlied@...hat.com>,
        "laurent.pinchart@...asonboard.com" 
        <laurent.pinchart@...asonboard.com>,
        "jernej.skrabec@...l.net" <jernej.skrabec@...l.net>,
        "narmstrong@...libre.com" <narmstrong@...libre.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jonas@...boo.se" <jonas@...boo.se>
Subject: 5.5.6-rc1+: lockup on boot -- drm/i915/display: Force the state
 compute phase once to enable PSR

On Tue, Feb 18, 2020 at 07:58:47PM +0100, Dominik Brodowski wrote:
> On Tue, Feb 18, 2020 at 06:01:37PM +0000, Souza, Jose wrote:
> > Hi
> > 
> > Yes this patch has a issue and we have a fix, I'm trying to find
> > someone to review it, more information: 
> > https://gitlab.freedesktop.org/drm/intel/issues/1151
> 
> Alas, that patch does not apply cleanly to -master.

Any update on this patch? It doesn't seem to have landed in -master yet,
though it solves a clear regression and without such a patch, my laptops
refuse to boot. So it'd be much appreciated if that patch (or a variant
thereof) is pushed upstream rather sooner than later.

Thanks,
	Dominik