From patchwork Tue Oct 29 19:12:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Imre Deak X-Patchwork-Id: 13855313 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DAC2DD3A692 for ; Tue, 29 Oct 2024 19:11:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6AC1B10E6DE; Tue, 29 Oct 2024 19:11:44 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="eNOEIQvk"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1503910E6DE for ; Tue, 29 Oct 2024 19:11:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730229104; x=1761765104; h=from:to:subject:date:message-id:mime-version: content-transfer-encoding; bh=jiuF3TDOmIpUBIGdTAblOwGhScY/DAqUYOqircwYC/I=; b=eNOEIQvkd35sNn7blpL2HGJ+54h5sUN3q8OEZxsrACc8Ok2HrYVBnlu4 pDdX/BXELsNzPMAjqpGv6dYN8t+m+GHfzORrJq+gMcDYNHy1tOLZ1Mm5m jxkq8TzSsyC8B4Esls0lE9kiT1pXSMbVOXbfEUer0b5H5O8J452/L8wHr 55LgkZMgV0VrrH7dEr89WmJVsTjLmQdF9NysjC6YnVxbbP9LfN3dfJwo6 0zv/HO0wC7u1MiR0Wig7aBmxfVeKcsUit8P/E0IM9ug9Rm+n4hHYh9AsP crkh7RSpvvmIrWN9QdPNeIz86AC6qFq4hp1OaMTsyJRZZhxQu571YOVBN Q==; X-CSE-ConnectionGUID: kWbluzTjTUyoGRK92qobtw== X-CSE-MsgGUID: YdeEuKBnRkWsWv4Suvaf7Q== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="29745589" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="29745589" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2024 12:11:43 -0700 X-CSE-ConnectionGUID: QWT3dgpTS1aYa32lJR37mg== X-CSE-MsgGUID: ulSt54sRQzGNHtuGDjFBgw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="86812686" Received: from ideak-desk.fi.intel.com ([10.237.72.78]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2024 12:11:43 -0700 From: Imre Deak To: intel-gfx@lists.freedesktop.org Subject: [PATCH 0/4] drm/i915/dp_mst: Fix DDI function/DP2 config programming Date: Tue, 29 Oct 2024 21:12:11 +0200 Message-ID: <20241029191215.3889861-1-imre.deak@intel.com> X-Mailer: git-send-email 2.44.2 MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Fix/align with the spec the DDI function and DP2 config programming during enabling/disabling MST slave transcoders. On PTL the first patch fixes a slave transcoder getting stuck issue. On PTL the DP2 configuration and on other ADLP+ platforms both the DDI function and the DP2 configuration changes only align the code with the specification, without actual problems reported that these woud fix. Imre Deak (4): drm/i915/ptl/dp_mst: Fix slave transcoder enabling wrt. DDI function drm/i915/dp: Export intel_ddi_config_transcoder_dp2() drm/i915/ptl/dp_mst: Align slave transcoder sequences with spec wrt. DP2 config drm/i915/adlp+: Align slave transcoder sequences with spec wrt. DDI function/DP2 config drivers/gpu/drm/i915/display/intel_ddi.c | 17 ++++++++++------- drivers/gpu/drm/i915/display/intel_ddi.h | 5 +++++ drivers/gpu/drm/i915/display/intel_dp_mst.c | 8 ++++++++ 3 files changed, 23 insertions(+), 7 deletions(-)