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 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 27B06E63F2E for ; Mon, 16 Feb 2026 05:01:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 890DE10E135; Mon, 16 Feb 2026 05:01:02 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="j7gGdMdT"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8D39410E13E; Mon, 16 Feb 2026 05:01:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1771218060; x=1802754060; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=JXhBYgIys61HPZ61dOi4bYMtMptcLwITA5FR5YQ82fU=; b=j7gGdMdTjj+ARo+Es2ln5NQOVc+RR46avB10t/Z+UcQA8eaaDM8nNR0m +UrJZ0inJXQXmCARVkPx6RYK3306K4C3OjDkSsAR5U3lDAdYd3JJdvl1r ZHsvtwXX6SToyT2zPZC16gFT3VrCMvk37SYF9y7E902ugD2JGNo8ZE/oJ 6NP4/deid/jgy86Lxz5JM47bxWhL7U4jqme3J+6sTt3vKfOe2CwR9uyVZ tHvVNRJBSs2/3kfju2YCEjUJ3q0NxwfgTNtD0xBuur3C4v3B1YC+to3q7 68p8LbIUj8kJcNrPT/7YFLEKPfZHcqv1mmPLcLka4RHGNAK3WAmG56RQu Q==; X-CSE-ConnectionGUID: ATkrDqGXRau3WCX0wjLLzQ== X-CSE-MsgGUID: tFaTmiUtSqqOaKdVF46dLQ== X-IronPort-AV: E=McAfee;i="6800,10657,11702"; a="94929087" X-IronPort-AV: E=Sophos;i="6.21,293,1763452800"; d="scan'208";a="94929087" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Feb 2026 21:01:00 -0800 X-CSE-ConnectionGUID: jHvhYCJJRMqD5JZHiUCYsw== X-CSE-MsgGUID: z0bkoIMZRlON+UM9ro+jQQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,293,1763452800"; d="scan'208";a="212818500" Received: from srr4-3-linux-106-armuthy.iind.intel.com ([10.190.238.56]) by fmviesa008.fm.intel.com with ESMTP; 15 Feb 2026 21:00:57 -0800 From: Arun R Murthy Date: Mon, 16 Feb 2026 10:29:39 +0530 Subject: [PATCH v3 1/2] drm/i915/cx0_phy_regs: Include SoC and OS turnaround time MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260216-timeout-v3-1-055522c22560@intel.com> References: <20260216-timeout-v3-0-055522c22560@intel.com> In-Reply-To: <20260216-timeout-v3-0-055522c22560@intel.com> To: Jani Nikula , uma.shankar@intel.com, suraj.kandpal@intel.com, ankit.k.nautiyal@intel.com Cc: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Arun R Murthy , Cole Leavitt X-Mailer: b4 0.15-dev 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" The port refclk enable timeout and the soc ready timeout value mentioned in the spec is the PHY timings and doesn't include the turnaround time from the SoC or OS. So add an overhead timeout value on top of the recommended timeouts from the PHY spec. The overhead value is based on the stress test results with multiple available panels. Reported-by: Cole Leavitt Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14713 Signed-off-by: Arun R Murthy Reviewed-by: Suraj Kandpal --- drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h index 658890f7351530e5686c23e067deb359b3283d59..152a4e751bdcf216a95714a2bd2d6612cbbd4698 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h @@ -78,10 +78,10 @@ #define XELPDP_PCLK_PLL_ENABLE_TIMEOUT_US 3200 #define XELPDP_PCLK_PLL_DISABLE_TIMEOUT_US 20 #define XELPDP_PORT_BUF_SOC_READY_TIMEOUT_US 100 -#define XELPDP_PORT_RESET_START_TIMEOUT_US 5 +#define XELPDP_PORT_RESET_START_TIMEOUT_US 10 #define XELPDP_PORT_POWERDOWN_UPDATE_TIMEOUT_MS 2 #define XELPDP_PORT_RESET_END_TIMEOUT_MS 15 -#define XELPDP_REFCLK_ENABLE_TIMEOUT_US 1 +#define XELPDP_REFCLK_ENABLE_TIMEOUT_US 10 #define _XELPDP_PORT_BUF_CTL1_LN0_A 0x64004 #define _XELPDP_PORT_BUF_CTL1_LN0_B 0x64104 -- 2.25.1