From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EA1BC5CFC0 for ; Mon, 18 Jun 2018 09:23:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 13FA920864 for ; Mon, 18 Jun 2018 09:23:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 13FA920864 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966538AbeFRJX2 (ORCPT ); Mon, 18 Jun 2018 05:23:28 -0400 Received: from mail.bootlin.com ([62.4.15.54]:53278 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966332AbeFRI1I (ORCPT ); Mon, 18 Jun 2018 04:27:08 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id BF20620798; Mon, 18 Jun 2018 10:27:06 +0200 (CEST) Received: from localhost (AAubervilliers-681-1-37-30.w90-88.abo.wanadoo.fr [90.88.156.30]) by mail.bootlin.com (Postfix) with ESMTPSA id 946BD20012; Mon, 18 Jun 2018 10:27:06 +0200 (CEST) Date: Mon, 18 Jun 2018 10:27:06 +0200 From: Maxime Ripard To: Paul Kocialkowski Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, David Airlie , Chen-Yu Tsai , linux-sunxi@googlegroups.com, Giulio Benetti , 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> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="m4crjbjbuqxcciob" Content-Disposition: inline In-Reply-To: <20180613081647.31183-1-paul.kocialkowski@bootlin.com> User-Agent: NeoMutt/20180512 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --m4crjbjbuqxcciob Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable 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 Applied, thanks Maxime --=20 Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com --m4crjbjbuqxcciob Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE0VqZU19dR2zEVaqr0rTAlCFNr3QFAlsnbNoACgkQ0rTAlCFN r3StnA//fZ4BBAsibltVNFsbllO/joCK3Ae7sE6XPcwCChhBlgPQ9/PZ/Pp01p4j E0x3uE9zi+4Ie7KeCdSufbB+b2jBVJsGLtn9yfeBzQ/HP5s4CdvflwTJVcIBOUEQ vhAu6pis4LzD+f4I6AKRCF4MhVZFFB5njbpIQ8ldngClQsPEX6RiypOPpIskRUUH kge/lwGv/fESQpLiQJ0OkFVyE0XrkIx31vYKIiH6CB34JZJMHz9MyjXIUahaVFTg n5hdOn1nNt2o11HnYkmkocuZnSTtrQdhlwrFss5ViBeDAp8+l/ac7v6lfiXxMBTH Ip81rTnXkL7xQuPSdAkRD9EDtVZjUNIBNPDDAM6cqRAlcegnM14ThafBEJQ4ZgMg vBTGLMxYAb5a+OjTo5WUNm/HoVdiTGelG3wZ565VTFqIJPr7gl8qRGZ2AVRm+UfT sfWeOhaWhsgZ1/TB7NxJ0s50yMdoH1srJA7FelNsnW+kwx/yjw7Fq72d7tSxkR19 2aMsQDSpgKDGTSfbQjye92XlqJSdbuyys3u45AlA3So8RijvaRqo7+J/3zDf6pFK JKxlagZ7ISgKlBJwBd7mO5XP83+TZ9Sw8+pymV/+OvYo/G2Pj633QrYcyDOTvPpo /Oe84mqCLeCuS2xNJKhMrMOw+5LKcAHiig8NlynQ6QQmt1dNeMk= =r7ix -----END PGP SIGNATURE----- --m4crjbjbuqxcciob--