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 1E3ABC04FFE for ; Wed, 8 May 2024 11:48:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 789B410EC1C; Wed, 8 May 2024 11:48:06 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="k9I5y6+T"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) by gabe.freedesktop.org (Postfix) with ESMTPS id 887E810EC1C for ; Wed, 8 May 2024 11:48:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715168885; x=1746704885; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version:content-transfer-encoding; bh=EUWI8ksxoDSmh6qlMf772rG0YlCOEBBmHDGWkTMC5aY=; b=k9I5y6+Tn642ytyvC+fzZAPEP5ljX+BYQugOL7A+2gQ/VmfQKQet+P1v xJ4QsnBRa3/MnHri6865kJaeRnenZHpWXeiivol0PPLeq0F+Mkw7mY2LU R1LXUo6YRA8+m/RcwyW0NIe6QQRTfz3cvsGlwiB4ZcFb9WY9eOoKvEr+S UXpFYu/lz+1zzCb1mbOCKfHkHdU0X1mLIrQry857VFyQwurs89gtehV3H W0Efamd6WasqujL/8Y2zkAZXNdFf7oY5f2pxkGDzUPdUFG9rwTVrCFF9a APk7fQONsCrikwcM4Tebx/tJpC+/N/TZgOW6GWwKa5G4WHNbvRskIMWFQ g==; X-CSE-ConnectionGUID: ZB4AeTQrSXydb6U5j3fljQ== X-CSE-MsgGUID: 53JKI/GkQQ+6yNC9qJjtog== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="33528389" X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="33528389" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 04:48:05 -0700 X-CSE-ConnectionGUID: XnnDgeklTnSpEqO8kamC9Q== X-CSE-MsgGUID: rHC3ufkRQHOEdZ7h96PYKw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="33548516" Received: from unknown (HELO localhost) ([10.237.66.160]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 04:48:01 -0700 From: Jani Nikula To: "Murthy, Arun R" , Ville =?utf-8?B?U3lyasOk?= =?utf-8?B?bMOk?= Cc: "intel-gfx@lists.freedesktop.org" Subject: RE: [PATCH] drm/i915/display/dp: Remove UHBR13.5 for icl In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <20240506090625.2812332-1-arun.r.murthy@intel.com> <87v83ok4kp.fsf@intel.com> Date: Wed, 08 May 2024 14:47:58 +0300 Message-ID: <87le4kjzip.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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, 08 May 2024, "Murthy, Arun R" wrote: >> -----Original Message----- >> From: Nikula, Jani >> Sent: Wednesday, May 8, 2024 3:29 PM >> To: Murthy, Arun R ; Ville Syrj=C3=A4l=C3=A4 >> >> Cc: intel-gfx@lists.freedesktop.org >> Subject: RE: [PATCH] drm/i915/display/dp: Remove UHBR13.5 for icl >> >> 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? >> > Changed the commit msg as below > > Display 12+ hardware supports UHBR13.5 Not true. > but due to the retimer constraints platform doesn't support UHBR13.5. Which platform? > This is the same for mtl and UHBR13.5 is removed as part of the commit ca= f3d748f646 ("drm/i915/dp: Remove support for UHBR13.5") > This patch removes UHBR13.5 support for icl/dg2. ICL does not support UHBR 13.5. BR, Jani. > > Thanks and Regards, > Arun R Murthy > -------------------- >> BR, >> Jani. >> >> >> -- >> Jani Nikula, Intel --=20 Jani Nikula, Intel