From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 DDA922D7DE9; Thu, 10 Sep 2026 04:50:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789015840; cv=none; b=Jyc8doRRc4U6N4+2poJoNLCOOUME3z/Wp6RJ/taIIXjMpVinhGLGDnCzj00TDRnaSJYpT7sM6qPAOqbQlpOp/jyoW3jtOKwms45FGVMvkY0R9oQgFeNqQI2QlNTix+6RdhavYOulpidr7hNMD2638sR0VtmUHTG2nemZM5jGzTo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789015840; c=relaxed/simple; bh=27sjqAX3mzIarYqMVpWaoeAe05sB9malX0xlN8XrmvM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qLEyusByUf8q7sqtlOf+SLpuiN8wUfn3yvSzBMnOSIKocc7xUC0DqihYtfde3jvrnNUf1gkxz5zvB+GrxYqAa53lyjz1igXaDRz+3CKM8HE+vnJrea2X2MxRIy5OtzX8z36IOg9ScB4VQert7Z3m+B1GQGdke64rhYW00kDameE= 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=mJx4LAk+; arc=none smtp.client-ip=198.175.65.13 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="mJx4LAk+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789015839; x=1820551839; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=27sjqAX3mzIarYqMVpWaoeAe05sB9malX0xlN8XrmvM=; b=mJx4LAk+y+YN+2aSbVTt37cXNVg7ZMnIS3I+KPJOf3T9R2wOJya41L0R I7LlxEZfC6jaYQ7IRQvzScnKAyX4vHZAgmVFc2Da6jF1Ijoz1gYfxiPVT l1p1Pyg0iQ3BsvkeA/Ebtmw70gwlEVcKdnbiMQO0xAv/cjVjFzJ1AFDxX JmjL5uzctE85PRka5OWMInJ355OGshTZnbb9YtUjq3NJYz9YslFHZNGfp jCXp3gf1wTmjxLTEm6HHfu6hXGID1a05k2HMq7HYeJWU7vPFcLHW8DO+G hUQKVBtmcrAdk+BJv8SSAxXplSA6rHwPSI3jo+AIIxOoprZ9tPCtn8YiY A==; X-CSE-ConnectionGUID: Hq1ATJH7RHWsDNFXmc5/0w== X-CSE-MsgGUID: PHRRL8YOSbiY5nHwPEsKAQ== X-IronPort-AV: E=McAfee;i="6800,10657,11900"; a="100621089" X-IronPort-AV: E=Sophos;i="6.25,271,1779174000"; d="scan'208";a="100621089" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2026 21:50:39 -0700 X-CSE-ConnectionGUID: t3yLjyHCRoasgCwgzmWvog== X-CSE-MsgGUID: u1n+qZFcRfqsUdFaiUs8fg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,271,1779174000"; d="scan'208";a="268257232" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa007.fm.intel.com with ESMTP; 09 Sep 2026 21:50:35 -0700 Received: by black.igk.intel.com (Postfix, from userid 1001) id 999D699; Thu, 10 Sep 2026 06:50:33 +0200 (CEST) Date: Thu, 10 Sep 2026 06:50:33 +0200 From: Mika Westerberg To: Sven Peter Cc: Heikki Krogerus , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Janne Grunau , Neal Gompa , Andreas Noever , Mika Westerberg , Yehezkel Bernat , Philipp Zabel , Konrad Dybcio , linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 19/22] thunderbolt: Add Apple Silicon support Message-ID: <20260910045033.GN106095@black.igk.intel.com> References: <20260906-b4-apple-soc-tbt-v2-0-1f80085f93fb@kernel.org> <20260906-b4-apple-soc-tbt-v2-19-1f80085f93fb@kernel.org> <20260908091844.GD106095@black.igk.intel.com> <22808191-5310-4d90-9fac-68d0d85b4c54@kernel.org> <20260909060615.GJ106095@black.igk.intel.com> <33699664-6afb-4b46-99d1-98a0f5e57f39@kernel.org> 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 In-Reply-To: <33699664-6afb-4b46-99d1-98a0f5e57f39@kernel.org> Hi, On Wed, Sep 09, 2026 at 05:20:35PM +0200, Sven Peter wrote: > Hi, > > On 09.09.26 08:06, Mika Westerberg wrote: > > [...] > > > > > If it is possible, I suggest to use the same way we do in ACPI side here: > > > > https://learn.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#map-native-protocols-pcie-displayport-tunneled-through-usb4-to-usb4-host-routers > > > > It was specifically designed so that it should support DT as well (that's > > why it uses the device properties _DSD). > > Oh, nice, I didn't know those existed. Konrad already has a PR open to add > these to dt-schema [1] and a PR that already makes use of these for dwc3 > [2]. Great. > I can just write generic code similar to the ACPI one then to add the device > links and split it off from this series, though I think that dt-schema PR > must be merged before we're allowed to use that representation. > I'll adjust the dt-bindings here for v3 to just drop the representation as > OF ports/endpoints as well. > For the PCIe/DP tunnel notifications I should be able to use the same > representation, possibly with an additional usb4-adapter-index property or > similar to differentiate between the two DP IN adapters, once I get to that > then. For PCIe yes, for DP you should not need those at all.