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 312F7C04FFE for ; Wed, 8 May 2024 11:00:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B0DBD10FAE5; Wed, 8 May 2024 11:00:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="CvoGX8cx"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1AA6110FAEC for ; Wed, 8 May 2024 11:00:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715166053; x=1746702053; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=kKPb7hhrABxRwZJV1k8CCXifopwTGZ/zMmUovgbjLzA=; b=CvoGX8cxwHUGtV/DM8MZDoQPz7qbLhsKnyHAWzUI/nlJjZ2cJyEpSzX7 Dw1c5fArKEmVzz5vdBZCuAC2I0FEkh3PuYM4rslmPtGCHQZukx4YSu3MV pgyvN3BrPqblqks4BbPzDznIglacgCsWnRrHyP6N5IGJDadS6EFNxytX4 CYr+6dfK8I96qiEMFa48lGS8dlkbnr/Iey5lt1lZ3E9f/IjEvBSCL8zTZ pF/sQ5+90cwvpClDNt/MOT/vUzh4xLfQ06m2gloVvw6v1Rh9WkptB7M9z ovxyjbw8Zs2OfEjRcmFbpP/DNpayxDKh125kflNYqfWL4Ogp0ZFNSoGI5 g==; X-CSE-ConnectionGUID: MMawMxWKQnuJoM7PKx16+w== X-CSE-MsgGUID: KWDIDw51QVmD/n1NBMZByQ== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="11179805" X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="11179805" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 04:00:52 -0700 X-CSE-ConnectionGUID: ucFkgq4lSzCipzLP0MSpMg== X-CSE-MsgGUID: b16gMbeyToey6FRbme/spA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="28787748" Received: from stinkpipe.fi.intel.com (HELO stinkbox) ([10.237.72.74]) by fmviesa008.fm.intel.com with SMTP; 08 May 2024 04:00:50 -0700 Received: by stinkbox (sSMTP sendmail emulation); Wed, 08 May 2024 14:00:49 +0300 Date: Wed, 8 May 2024 14:00:49 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Jani Nikula Cc: "Murthy, Arun R" , "intel-gfx@lists.freedesktop.org" Subject: Re: [PATCH] drm/i915/display/dp: Remove UHBR13.5 for icl Message-ID: References: <20240506090625.2812332-1-arun.r.murthy@intel.com> <87v83ok4kp.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <87v83ok4kp.fsf@intel.com> X-Patchwork-Hint: comment 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" On Wed, May 08, 2024 at 12:58:46PM +0300, Jani Nikula wrote: > On Wed, 08 May 2024, "Murthy, Arun R" wrote: > > This is the limitation from the retimer hardware. > > The commit message needs to reflect this. > > Do all units have a retimer with the limitation? Or could you have a DG2 > without the limitation? Do we need to check for that instead of blanket > removal of UHBR 13.5 for DG2? And if we do remove it entirely then we should do it fully. That is, don't leave behind unused PLL tables and whatnot. -- Ville Syrjälä Intel