From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752171AbcBOSJr (ORCPT ); Mon, 15 Feb 2016 13:09:47 -0500 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:44396 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751666AbcBOSJp (ORCPT ); Mon, 15 Feb 2016 13:09:45 -0500 Date: Mon, 15 Feb 2016 18:09:21 +0000 From: One Thousand Gnomes To: Mark Brown Cc: Hanjun Guo , qiujiang , Andy Shevchenko , charles.chenxin@huawei.com, linuxarm@huawei.com, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Jarkko Nikula , linux-spi@vger.kernel.org Subject: Re: [RFC PATCH] SPI/ACPI: DesignWare: Add ACPI support for Designware SPI driver Message-ID: <20160215180921.2692941e@lxorguk.ukuu.org.uk> In-Reply-To: <20160215174540.GS18988@sirena.org.uk> References: <1454656280-130658-1-git-send-email-qiujiang@huawei.com> <20160205110900.GA12311@sirena.org.uk> <56C18C07.2030209@huawei.com> <20160215174540.GS18988@sirena.org.uk> Organization: Intel Corporation X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.29; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 15 Feb 2016 17:45:40 +0000 Mark Brown wrote: > On Mon, Feb 15, 2016 at 04:27:51PM +0800, Hanjun Guo wrote: > > On 2016/2/5 19:09, Mark Brown wrote: > > > > Intel are heavy users of this driver on their systems which also use > > > ACPI. Have you discussed this binding with them? I've copied Andy and > > > Jarkko who've worked on the driver recently. > > > There is no ACPI code in this driver yet, seems "PRP0001" is used to reuse > > this driver directly. > > No, on Intel systems the devices appear on the PCI bus. They may be ACPI or PCI enumerated - depends upon the system and firmware. See drivers/acpi/acpi_lpss.c Alan