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Date:   Mon, 18 Jun 2018 10:27:06 +0200
From:   Maxime Ripard <maxime.ripard@bootlin.com>
To:     Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cc:     dri-devel@lists.freedesktop.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        David Airlie <airlied@linux.ie>, Chen-Yu Tsai <wens@csie.org>,
        linux-sunxi@googlegroups.com,
        Giulio Benetti <giulio.benetti@micronovasrl.com>,
        stable@vger.kernel.org
Subject: Re: [PATCH] Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"
Message-ID: <20180618082706.jjklq36jeu3nqs2q@flea>
References: <20180613081647.31183-1-paul.kocialkowski@bootlin.com>
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On Wed, Jun 13, 2018 at 10:16:47AM +0200, Paul Kocialkowski wrote:
> This reverts commit 2c17a4368aad2b88b68e4390c819e226cf320f70.
>=20
> The offending commit triggers a run-time fault when accessing the panel
> element of the sun4i_tcon structure when no such panel is attached.
>=20
> It was apparently assumed in said commit that a panel is always used with
> the TCON. Although it is often the case, this is not always true.
> For instance a bridge might be used instead of a panel.
>=20
> This issue was discovered using an A13-OLinuXino, that uses the TCON
> in RGB mode for a simple DAC-based VGA bridge.
>=20
> Cc: stable@vger.kernel.org
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

Applied, thanks

Maxime

--=20
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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