linux-kernel - Re: [BACKPORT 4.14.y 1/8] drm/i915/fbdev: Actually configure untiled displays

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Date:   Thu, 5 Sep 2019 09:47:14 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Greg KH <greg@...ah.com>
Cc:     "# 3.4.x" <stable@...r.kernel.org>, chris@...is-wilson.co.uk,
        airlied@...ux.ie, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, Arnd Bergmann <arnd@...db.de>,
        Orson Zhai <orsonzhai@...il.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [BACKPORT 4.14.y 1/8] drm/i915/fbdev: Actually configure untiled displays

On Thu, 5 Sep 2019 at 01:25, Greg KH <greg@...ah.com> wrote:
>
> On Tue, Sep 03, 2019 at 02:55:26PM +0800, Baolin Wang wrote:
> > From: Chris Wilson <chris@...is-wilson.co.uk>
> >
> > If we skipped all the connectors that were not part of a tile, we would
> > leave conn_seq=0 and conn_configured=0, convincing ourselves that we
> > had stagnated in our configuration attempts. Avoid this situation by
> > starting conn_seq=ALL_CONNECTORS, and repeating until we find no more
> > connectors to configure.
> >
> > Fixes: 754a76591b12 ("drm/i915/fbdev: Stop repeating tile configuration on stagnation")
> > Reported-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> > Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
> > Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> > Link: https://patchwork.freedesktop.org/patch/msgid/20190215123019.32283-1-chris@chris-wilson.co.uk
> > Cc: <stable@...r.kernel.org> # v3.19+
> > Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
> > ---
> >  drivers/gpu/drm/i915/intel_fbdev.c |   12 +++++++-----
> >  1 file changed, 7 insertions(+), 5 deletions(-)
>
> What is the git commit id of this patch in Linus's tree?

The commit id is: d9b308b1f8a1acc0c3279f443d4fe0f9f663252e

>
> Can you please add that as the first line of the changelog like is done
> with all other stable patches?  That way I can verify that what you
> posted here is the correct one.
>
> Please fix the up for all of these and resend.

Sure. Thanks.

-- 
Baolin Wang
Best Regards