From patchwork Fri Mar 8 11:00:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Hogander, Jouni" X-Patchwork-Id: 13586672 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 16274C5475B for ; Fri, 8 Mar 2024 11:01:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 79B9A113847; Fri, 8 Mar 2024 11:01:11 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="BENEiM4O"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id E493811385B for ; Fri, 8 Mar 2024 11:01:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709895669; x=1741431669; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=r+7p0ADbEZ9NN5zHCBuEgDY40v739QalCbReUyg16lM=; b=BENEiM4O3czsuIWablIQh4fIGhQ9JD0uYhXjVrf63FctXEw6PQv79+Oe 0nwaihu/s0FfOqQVaP7cqz+g+Ei5om3R+UqI+RjLr2ntvgBGM80NHtU4b 1pRNZKsjOwKo703tKz3M2Uv5L/ZGUS7TrdbgQp30RvXRaQM/003T36lM3 c0nd0/5EZ1fmbSL7X1mKJ53WfigVlNE2oCKdBwguW1wf5Ri5leTAvxLGV Crx7jk+CRqLAYoChx9B8DWAHQdbQan4JiRpwyxQPpsa2V0j1LdaVAHanA 40QQizNJHzOQe7yUOdWYkyY+hZDW7TW0VNLaXu1iOoZfnKe6QtMpbY19Z Q==; X-IronPort-AV: E=McAfee;i="6600,9927,11006"; a="4480333" X-IronPort-AV: E=Sophos;i="6.07,109,1708416000"; d="scan'208";a="4480333" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Mar 2024 03:01:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,109,1708416000"; d="scan'208";a="15130091" Received: from mkupniew-mobl.ger.corp.intel.com (HELO jhogande-mobl1.intel.com) ([10.251.208.210]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Mar 2024 03:01:07 -0800 From: =?utf-8?q?Jouni_H=C3=B6gander?= To: intel-gfx@lists.freedesktop.org Cc: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , Jani Nikula , =?utf-8?q?Jouni_H=C3=B6gander?= Subject: [PATCH v5 5/5] drm/i915/display: Increase number of fast wake precharge pulses Date: Fri, 8 Mar 2024 13:00:39 +0200 Message-Id: <20240308110039.3900838-6-jouni.hogander@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240308110039.3900838-1-jouni.hogander@intel.com> References: <20240308110039.3900838-1-jouni.hogander@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo 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" Increasing number of fast wake sync pulses seem to fix problems with certain PSR panels. This should be ok for other panels as well as the eDP specification allows 10...16 precharge pulses and we are still within that range. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9739 Signed-off-by: Jouni Högander --- drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index 7e69be100d90..5dff1bc85d61 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -145,7 +145,7 @@ static int intel_dp_aux_sync_len(void) int intel_dp_aux_fw_sync_len(void) { - int precharge = 10; /* 10-16 */ + int precharge = 12; /* 10-16 */ int preamble = 8; return precharge + preamble;