From patchwork Tue Nov 7 10:25:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philip Cox X-Patchwork-Id: 1860926 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=185.125.189.65; helo=lists.ubuntu.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=patchwork.ozlabs.org) Received: from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SPkt42fFcz1yQg for ; Tue, 7 Nov 2023 21:27:07 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=lists.ubuntu.com) by lists.ubuntu.com with esmtp (Exim 4.86_2) (envelope-from ) id 1r0JIQ-0005um-P3; Tue, 07 Nov 2023 10:26:58 +0000 Received: from smtp-relay-internal-1.internal ([10.131.114.114] helo=smtp-relay-internal-1.canonical.com) by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1r0JIO-0005ue-P5 for kernel-team@lists.ubuntu.com; Tue, 07 Nov 2023 10:26:56 +0000 Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-internal-1.canonical.com (Postfix) with ESMTPS id 948153F75E for ; Tue, 7 Nov 2023 10:26:56 +0000 (UTC) Received: by mail-lj1-f198.google.com with SMTP id 38308e7fff4ca-2c506abc320so47331331fa.2 for ; Tue, 07 Nov 2023 02:26:56 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699352814; x=1699957614; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ekR51+lDTsWIqgVlQlBgBzv+bo9svX0whDtM+MIG4Gw=; b=ScKhsWjVfPwgKjcpt923sbF3U2sii2TbEN+e1y/h58+8v3JQ9K3G5hWcB7dTiLjXL5 3WMEJnal8DEDykgS8cbFwSfoDtOum1+VyrtdmmxCFVHel/gnRUvOKrW/OLJo86QkoU98 nFUrVYT2J2A5YWjoBdtRMVfSmenNH/Tr6PQD7V5aBeog6SaJjZTD1lZFdsDbCp0mVDP+ jI9UbVK569G502hoTOKD4lIozfE98EWeBXmD6+gcDocYOiX4tZfA/Uz9+o8dxrNXoPpJ sJtRjb/qNifJnlJs75+5242jHk55PO6iM+5oLRkpxpGVScznfb5HJkonq8FfTkS4qc9x EEfQ== X-Gm-Message-State: AOJu0YznCLobDy6Zis+qfP3FyRpa1UpN05yJ3oDmcyhEKrDtoRbEVIi+ YCuDH5acZYptBfRLx+hEzb5qfX7fvSP820pesJTLbxe+8JgV5YRgr2TORi23d4Z0guXW+YD09IE BAFKfLXBETMV1yMDuuAIX+LauWotUfdAp15C0YAsZRqWFIUkeHIBZ X-Received: by 2002:a2e:3609:0:b0:2c5:31de:6c02 with SMTP id d9-20020a2e3609000000b002c531de6c02mr23343092lja.15.1699352814052; Tue, 07 Nov 2023 02:26:54 -0800 (PST) X-Google-Smtp-Source: AGHT+IE/FFRKttxiwDMdxxKgSefqzOwRhozbAE8zBSMo7o7Y1gc/anYtNWuC4r25U52FzuwqbAFR6w== X-Received: by 2002:a2e:3609:0:b0:2c5:31de:6c02 with SMTP id d9-20020a2e3609000000b002c531de6c02mr23343081lja.15.1699352813620; Tue, 07 Nov 2023 02:26:53 -0800 (PST) Received: from cox.conference ([195.13.248.78]) by smtp.gmail.com with ESMTPSA id s16-20020a2e83d0000000b002b9e0d19644sm1395369ljh.106.2023.11.07.02.26.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Nov 2023 02:26:52 -0800 (PST) From: Philip Cox To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/1] [mantic:linux] Revert: drm/ast: report connection status on Display Port Date: Tue, 7 Nov 2023 12:25:45 +0200 Message-Id: <20231107102546.39000-1-philip.cox@canonical.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/2042850 SRU Justification: [Impact] On systems with Aspeed 2600 revision 52 GPUs, the display fails to progress to the login prompt. Without reverting commit: 916ae609a033cbb55661905d310ba2358b7621ea Author: Jocelyn Falempe Date: Thu Jul 13 15:41:31 2023 +0200 Subject: drm/ast: report connection status on Display Port. the kernel command line option of "nomodeset" needs to be passed in order to have the system reach the login prompt. [Fix] The fix for now is to revert this change to restore the previous behaviour. This will restore the functionality that we had prior to the regression in 6.5.0-6.6. [Test Plan] I have tested this on multiple versions of Aspeed 2600 GPU enabled BMCs, and the revision 52 systems that required the nomodeset option to boot, now boot fine, and there is no regression on the other systems. [Where problems could occur] As this reverts the mantic kernel's Aspeed GPU driver to the state it was was in the mantic 6.5.0-5.5 kernel, I think there is little room for regressions. ---- Philip Cox (1): UBUNTU: SAUCE: (no-up) Revert "drm/ast: report connection status on Display Port." drivers/gpu/drm/ast/ast_dp.c | 11 ---------- drivers/gpu/drm/ast/ast_dp501.c | 37 +++++++++++---------------------- drivers/gpu/drm/ast/ast_drv.h | 2 -- drivers/gpu/drm/ast/ast_mode.c | 30 ++------------------------ 4 files changed, 14 insertions(+), 66 deletions(-)