From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751803Ab1HPRNX (ORCPT ); Tue, 16 Aug 2011 13:13:23 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:12957 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751043Ab1HPRNV (ORCPT ); Tue, 16 Aug 2011 13:13:21 -0400 X-IronPort-AV: E=McAfee;i="5400,1158,6440"; a="110519044" Message-ID: <4E4AA52E.1070706@codeaurora.org> Date: Tue, 16 Aug 2011 11:13:18 -0600 From: Kenneth Heitke User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.9) Gecko/20100722 Eudora/3.0.4 MIME-Version: 1.0 To: Arnd Bergmann CC: David Brown , Mark Brown , bryanh@codeaurora.org, linux-arm-msm@vger.kernel.org, Sagar Dharia , rdunlap@xenotime.net, rmk+kernel@arm.linux.org.uk, john.stultz@linaro.org, akpm@linux-foundation.org, ohad@wizery.com, gregkh@suse.de, stefanr@s5r6.in-berlin.de, lethal@linux-sh.org, linville@tuxdriver.com, zajec5@gmail.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] slimbus: Linux driver framework for SLIMbus. References: <1313019091-15354-1-git-send-email-kheitke@codeaurora.org> <201108161537.28612.arnd@arndb.de> <20110816135051.GA22227@huya.qualcomm.com> <201108161632.22255.arnd@arndb.de> In-Reply-To: <201108161632.22255.arnd@arndb.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/16/2011 08:32 AM, Arnd Bergmann wrote: > On Tuesday 16 August 2011, David Brown wrote: >> On Tue, Aug 16, 2011 at 03:37:28PM +0200, Arnd Bergmann wrote: > >>> This is theoretically true, but IIRC David mentioned that the bus is >>> only present on few SoCs and has since been abandoned in favor of standard >>> busses for new devices. >> >> Actually, this is a different one than the one I was mentioning at the >> Linaro Connect. I believe SLIMbus is more active >> http://en.wikipedia.org/wiki/SLIMbus >> >> The other bus I was mentioning is called SSBI, which as far as I know >> is only used to communicate between MSMs and certain Qualcomm >> peripheral chips. > > Thanks for the clarification! I assumed these were the same thing because > the patches were posted just after we had talked about the other one. > >> Kenneth would better be able to clarify how dynamic the SLIMbus is. > > That would definitely be helpful. Also, I'd be very interested to hear > what kind of device probing is available on slimbus. If Mark was > right about devices being discoverable, we need don't need any board > description (dts or hardcoded) but instead a way to match the devices > to drivers based on their HW ID. > > Arnd > SLIMbus is a MIPI standard bus primarily used for digital audio devices. The devices on the bus SLIMbus enumerate themselves by sending an IDENTITY message. I'll let Sagar clarify further. thanks, Ken -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.