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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 8455AC7618B for ; Wed, 24 Jul 2019 12:07:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5BC73229ED for ; Wed, 24 Jul 2019 12:07:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563970021; bh=kY9aOXPRpGfwfHnTGTHMEdRMFdMhsa9S69gVjmKJWow=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=HDq2c+NwzZP810EcRe6hZ5LKLNq9oJFrUcHlS48vx6AVmyJ0CxzVbav7xdYkw6jOO teY1Q+0VOl3bf7grC7Ej763/IVERLmCmqGbbju+8QiC6rHyyjFnHrzMfEMFGODmMNQ 2uXofkPDRlrWlpULTqsgoPe8V24xt4zNt5RC+4cY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727959AbfGXMHA (ORCPT ); Wed, 24 Jul 2019 08:07:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:43966 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726256AbfGXMHA (ORCPT ); Wed, 24 Jul 2019 08:07:00 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2F3CC229ED; Wed, 24 Jul 2019 12:06:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563970019; bh=kY9aOXPRpGfwfHnTGTHMEdRMFdMhsa9S69gVjmKJWow=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JBtrG4BzS6Z9RgW7GTO0JdzEnrKf+DTJHSu+EOF/uixenCpbKa5cQTsgy/TOkUhJ7 RiG50ad6sw7I667jQSoCKJ+HQI1ePWPBqfk/wQdls5CWSFyLnho3fNjoSWfvM8h614 +/1zRIys1hTEJdVKmXAIOru6ULJYbs6M6+3WfQ9c= Date: Wed, 24 Jul 2019 14:06:57 +0200 From: Greg KH To: Dhinakaran Pandiyan Cc: intel-gfx@lists.freedesktop.org, sashal@kernel.org, Rodrigo Vivi , =?iso-8859-1?Q?Jos=E9?= Roberto de Souza , stable@vger.kernel.org Subject: Re: [PATCH stable v5.2] drm/i915/vbt: Fix VBT parsing for the PSR section Message-ID: <20190724120657.GG3244@kroah.com> References: <20190719004526.B0CC521850@mail.kernel.org> <20190722231325.16615-1-dhinakaran.pandiyan@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190722231325.16615-1-dhinakaran.pandiyan@intel.com> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, Jul 22, 2019 at 04:13:25PM -0700, Dhinakaran Pandiyan wrote: > A single 32-bit PSR2 training pattern field follows the sixteen element > array of PSR table entries in the VBT spec. But, we incorrectly define > this PSR2 field for each of the PSR table entries. As a result, the PSR1 > training pattern duration for any panel_type != 0 will be parsed > incorrectly. Secondly, PSR2 training pattern durations for VBTs with bdb > version >= 226 will also be wrong. > > Cc: Rodrigo Vivi > Cc: José Roberto de Souza > Cc: stable@vger.kernel.org > Cc: stable@vger.kernel.org #v5.2 > Fixes: 88a0d9606aff ("drm/i915/vbt: Parse and use the new field with PSR2 TP2/3 wakeup time") > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111088 > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204183 > Signed-off-by: Dhinakaran Pandiyan > Reviewed-by: Ville Syrjälä > Reviewed-by: José Roberto de Souza > Acked-by: Rodrigo Vivi > Tested-by: François Guerraz > Signed-off-by: Rodrigo Vivi > Link: https://patchwork.freedesktop.org/patch/msgid/20190717223451.2595-1-dhinakaran.pandiyan@intel.com > (cherry picked from commit b5ea9c9337007d6e700280c8a60b4e10d070fb53) There is no such commit in Linus's kernel tree :(