From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 6272F3F23A3; Wed, 4 Feb 2026 12:37:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770208626; cv=none; b=hFSIgMmb8M1i4gZx6vpCKU+9eeMPCMp1wzO6diXCm0LfTTdcmgVOIRwgBP16OgUzUMKdFRlmkHfdVu8nZOnBf/bJ1GA4ttGlqYWNbQS+0QF3wS22PeJ5Ultsv/jq5RDgCsZOeo7rAWCebowCXcl7NmzXrTo7JwVjG/JPBFol+Io= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770208626; c=relaxed/simple; bh=fBIS6G8rQ2ijfeCXj8IMHk2REClU+UvHE7Vd5DfnRFU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Wp5NCzjTif+wYnZivNYYJ7MUQ9Y56rOnKSb9noU+Sbo4ca33EfFIhh6AWMHWVzjKSIrdr4j+TKg+g4O4zx2IF6DqO6sr2eVoGa4v0NCus2L8e8K6RXIDaOlOmqJyN/GASefZ5NopF2DyHdr057FmNj0GVYze9F5EBbOALDehHNg= 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=IIYMe1y+; arc=none smtp.client-ip=198.175.65.11 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="IIYMe1y+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770208626; x=1801744626; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=fBIS6G8rQ2ijfeCXj8IMHk2REClU+UvHE7Vd5DfnRFU=; b=IIYMe1y+5droFcMJ9pwyeTqO6GMEwdC0cD9zeTWOizEW61166/OxdvXz gKZAlJMyT73pJO3RqQHktT2EQOIrJWVlXAy8MEtI19zF0IRvk5LQKq8bh uzWewX4TevJweb+e1wTXwe8HCMlWxK4Hb5tLNx2ooKNKoakFFfpCBoP8o ZWeiASOLw4EaurGPLkDua5kk8TJcPgTua7QHjD4bqrcJdfSvJR6IDU3u3 XZgJxmgMoxPFi9/eDm831Z5tudBQ5IJtJYeHLtrYI87MfbLfXUJ2UsjDl wnBKQM/FCMUxKd8vRxWkmd8Tb9A+pLplCB6/YV8b9pNqvC/rTW+qfjmKJ w==; X-CSE-ConnectionGUID: nS6SMunYQpCVyM0ViWd1Fg== X-CSE-MsgGUID: qn4oJCqNSwKY5sF23DaCRA== X-IronPort-AV: E=McAfee;i="6800,10657,11691"; a="81707994" X-IronPort-AV: E=Sophos;i="6.21,272,1763452800"; d="scan'208";a="81707994" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2026 04:37:05 -0800 X-CSE-ConnectionGUID: lMX6n5QfSp+8PZ/44haIpQ== X-CSE-MsgGUID: wuLXtn6tS7CgFxKsg+IIHA== X-ExtLoop1: 1 Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa003.fm.intel.com with ESMTP; 04 Feb 2026 04:37:03 -0800 Received: by black.igk.intel.com (Postfix, from userid 1001) id AD99C95; Wed, 04 Feb 2026 13:37:02 +0100 (CET) Date: Wed, 4 Feb 2026 13:37:02 +0100 From: Mika Westerberg To: Jayi Li Cc: "Chia-Lin Kao (AceLan)" , Andreas Noever , Mika Westerberg , Yehezkel Bernat , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Gil Fine Subject: Re: [PATCH] thunderbolt: Fix PCIe device enumeration with delayed rescan Message-ID: <20260204123702.GO2275908@black.igk.intel.com> References: <20260127084513.GC2275908@black.igk.intel.com> <20260127101701.GI2275908@black.igk.intel.com> <20260129065003.GS2275908@black.igk.intel.com> <20260203093957.GD2275908@black.igk.intel.com> <087dcbe3-ad68-4f45-877b-8f78721efa4b@kylinos.cn> <20260203100752.GF2275908@black.igk.intel.com> <8a4874ef-90d4-4d88-a72d-1efa791a5b9b@kylinos.cn> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8a4874ef-90d4-4d88-a72d-1efa791a5b9b@kylinos.cn> On Wed, Feb 04, 2026 at 10:37:58AM +0800, Jayi Li wrote: > > 在 2026/2/3 18:07, Mika Westerberg 写道: > > On Tue, Feb 03, 2026 at 06:00:06PM +0800, Jayi Li wrote: > > > > > I'm not sure if this is relevant to this issue, but sharing just in case. > > > > Thanks for sharing! > > > > > > > > It could be. What device this is? > > > The device is Targus DOCK221. > > Is the host Intel or AMD (well can you share bit more details about the > > topology)? Then if you block runtime PM of the PCIe Downstream Port that > > leads to the TB3 device like: > > > > # echo on > /sys/bus/pci/devices/DEVICE/power/control > > > > Does it work? > > The host is ASMedia. Ah okay. I don't have any experience with ASMedia host. What system/laptop comes with that? >  ASMedia Host (0-0, domain0) >          | >         └─ Port 3 ──→ Thunderbolt 3 Dock (0-3) > > I tried disabling runtime PM by writing 'on' to power/control for the > downstream port, but it did not work. I think that's integrated into the SoC, right? So it's a PCIe root port used for tunneling. What does 'sudo lspci -vv' say?