linux-kernel - Regression in ARM CLCD Fb

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Message-ID: <CAMi1Hd2sy4O=FUoHZJqrO5O0_+yiZZ3Oqmgb03h3X6iwRAc6Fw@mail.gmail.com>
Date:   Sat, 15 Oct 2016 22:14:29 +0530
From:   Amit Pundir <amit.pundir@...aro.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Pawel Moll <pawel.moll@....com>, Rob Herring <robh@...nel.org>,
        Russell King <linux@....linux.org.uk>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        John Stultz <john.stultz@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Regression in ARM CLCD Fb

Hi,

Commit 25348160e9a4 ("video: ARM CLCD: add special panel hook for
Versatiles") broke CLCD framebuffer on my qemu-system-arm +
vexpress-v2p-ca9.dtb + Android test setup.

Android boot failed with:

E/SurfaceFlinger( 1003): ERROR: failed to open framebuffer (No such
file or directory), aborting

It means Android didn't find /dev/fb* or equivalent /dev/graphics/fb*.

Any thoughts on what might be going wrong here? Or am I missing
anything obvious in my Qemu setup, though it was working fine so far.
I'd be happy to help debug things.

Regards,
Amit Pundir