From patchwork Tue Jun 27 15:34:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Golani, Mitulkumar Ajitkumar" X-Patchwork-Id: 13294681 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 846A3EB64D9 for ; Tue, 27 Jun 2023 15:33:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1DDD310E303; Tue, 27 Jun 2023 15:33:44 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6B87010E010 for ; Tue, 27 Jun 2023 15:33:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1687880018; x=1719416018; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=xZErQS/DzfAgmwOXburmOVvks38qRr4UwURNVCrG/4g=; b=ecqaKMzJsi24h7z/YbH2OwIWt4lAr9gmto7vz/TsNaKh+ByWkFrGWMPf mWmkzu1Q1xMrsmDu1vxVZX47UbjkqLVCgpfzDOE//u9BwpLPM9Bsch7t4 NetxLaKIlhU7mYJw9rsqbdep+0LtbZOFi5V/wBGKFnIOCGeLNltKKB3OE kQf4UdgQBVJO4gyI4Vs18ZW2U0FRlGb1Frclzi7PPKTkAmsxV/HYbkjQb 2416NS4FHJvOBy7y89AhFDzhe8wRuWAXq5rxKCnkP9hRo3bxflINkRiie T6ItParcEUYtAs/xcr3PubFjydTE7bWpVpT6ef21Gq5afPYPNqWFWEnRH g==; X-IronPort-AV: E=McAfee;i="6600,9927,10754"; a="351386308" X-IronPort-AV: E=Sophos;i="6.01,162,1684825200"; d="scan'208";a="351386308" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jun 2023 08:33:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10754"; a="806533231" X-IronPort-AV: E=Sophos;i="6.01,162,1684825200"; d="scan'208";a="806533231" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by FMSMGA003.fm.intel.com with ESMTP; 27 Jun 2023 08:33:35 -0700 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Date: Tue, 27 Jun 2023 21:04:50 +0530 Message-Id: <20230627153451.2834196-1-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/1] HDMI 2.0/DP1p62Gbps skew violation when there is skew between DL PCLK 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" When doing type-C PHY voltage swing programming for HDMI and DP 1.62Gbps, program DKLP_PCS_GLUE_TX_DPCNTL2[loadgen_sharing_pmd_disable] to '1'. For other DP frequencies, program DKLP_PCS_GLUE_TX_DPCNTL2[loadgen_sharing_pmd_disable] to '0'. This Workaround is specific to Display Version 13 Wa_15010727533 Signed-off-by: Mitul Golani Mitul Golani (1): drm/i915/display: HDMI2.0/DP1p62Gbps skew violation when there is skew between DL PCLK drivers/gpu/drm/i915/display/intel_ddi.c | 13 +++++++++++++ drivers/gpu/drm/i915/i915_reg.h | 6 ++++++ 2 files changed, 19 insertions(+)