From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F53A3D411A; Fri, 3 Jul 2026 13:02:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783083727; cv=none; b=ftnQusgL13IrwXVFj3IDaWbvVnIXyslu7Kt7yyNSoh9eEgkvcW2mNm9jeVNYndhMAHdKzQwCcK+6hSHtNXC2wLwsmrAJg32P6fV4aXOf25j3NnnjJglq//KxezDXJrsJ2AyVIjOO9B+uObt5AukrR82Lk8KjYwqHtUdjVL7Cht0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783083727; c=relaxed/simple; bh=go3A92f+qVfLN0BBANEqxhTi+7+zvO5fvzs2fUIzcw4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=K2njvLVRIUObpF5kWKodLd+aP4qfEANloCKF63X1TRP5dychLRwi9hKPdqrpISOIj/o378sb4KGH2U3wRAkB5IXMyFenf+h4D+26/o0yp0wF5cqNwXMEX3lLdDRkVnu10GVSW0xjbM8Pq044vYtUMHI2x3ZoAy/VSAD73UJ41uo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=NuzrB/0g; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="NuzrB/0g" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1783083726; x=1814619726; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=go3A92f+qVfLN0BBANEqxhTi+7+zvO5fvzs2fUIzcw4=; b=NuzrB/0gQgSBjssMI1Y5o8NIJwrzbE9E4Ise0k3V+h37YH8vGbm+bvNu /ngCGHyXXH86Bbis97tt1Hfs3vdb+naI32hRp6CeSqPNK5UHwUo9XIIiO euEN2H5hbkQVZAr092yi+bTMiegC5fxgVMxWA+QkZHEZouBmej3Cz78z2 cZ3Vx12L2XmkabMSJdTjLZvneSl1JLUTLEzKSK3nXjefZ+tHi0RyTDuTS r5voX6G2maILsMdjI69WgdRbc7hbhrOjF0YWuXss+LY5VkA8W3IFYwq1Y W4CpTqffgEwg1YmHud1gjciF+QEM99lBMNjtfTikaG7hlVhWwYn2GEPRJ A==; X-CSE-ConnectionGUID: NArLQK8BRcif+tSWouniSw== X-CSE-MsgGUID: et5YtQUfR2iZKLDz5j+nOA== X-IronPort-AV: E=McAfee;i="6800,10657,11835"; a="86386249" X-IronPort-AV: E=Sophos;i="6.25,145,1779174000"; d="scan'208";a="86386249" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2026 06:02:05 -0700 X-CSE-ConnectionGUID: pugGM/gaQTaY9txxcMNEVA== X-CSE-MsgGUID: mOxugsDkT6C+FxXoN/1dQA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,145,1779174000"; d="scan'208";a="250458340" Received: from carterle-desk.ger.corp.intel.com (HELO localhost) ([10.245.245.80]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jul 2026 06:02:00 -0700 Date: Fri, 3 Jul 2026 16:01:58 +0300 From: Andy Shevchenko To: Chen-Yu Tsai Cc: Bartosz Golaszewski , Greg Kroah-Hartman , Daniel Scally , Heikki Krogerus , Sakari Ailus , "Rafael J. Wysocki" , Danilo Krummrich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam , Alan Stern Subject: Re: [PATCH v3 05/13] usb: hub: Associate port@ fwnode with USB port device Message-ID: References: <20260703110317.1283411-1-wenst@chromium.org> <20260703110317.1283411-6-wenst@chromium.org> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260703110317.1283411-6-wenst@chromium.org> Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo On Fri, Jul 03, 2026 at 07:03:06PM +0800, Chen-Yu Tsai wrote: > When a USB hub port is connected to a connector in a firmware node > graph, the port itself has a node in the graph. > > Associate the port's firmware node with the USB port's device, > usb_port::dev. This is used in later changes for the M.2 slot power > sequencing provider to match against the requesting port. > > To avoid potential conflicts with ACPI firmware nodes and then causing > power management issues, only assign the firmware node if the hub's > firmware node is not an ACPI firmware node. Now I'm more confident that it does not mess up with ACPI case. Reviewed-by: Andy Shevchenko -- With Best Regards, Andy Shevchenko