From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pv0-f174.google.com ([74.125.83.174]:50476 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754098Ab0HKWSp convert rfc822-to-8bit (ORCPT ); Wed, 11 Aug 2010 18:18:45 -0400 MIME-Version: 1.0 In-Reply-To: References: <1281550913-17633-1-git-send-email-ohad@wizery.com> <1281550913-17633-4-git-send-email-ohad@wizery.com> <5A47E75E594F054BAF48C5E4FC4B92AB0324110ABD@dbde02.ent.ti.com> <20100811184742.GA21778@nokia.com> From: Ohad Ben-Cohen Date: Thu, 12 Aug 2010 01:18:25 +0300 Message-ID: Subject: Re: [PATCH v4 3/8] wireless: wl1271: add platform driver to get board data To: Vitaly Wool Cc: felipe.balbi@nokia.com, Kalle Valo , "Pandita, Vikram" , "akpm@linux-foundation.org" , "Quadros Roger (Nokia-MS/Helsinki)" , Tony Lindgren , "linux-wireless@vger.kernel.org" , Nicolas Pitre , Mark Brown , "linux-mmc@vger.kernel.org" , Ido Yariv , San Mehat , "Chikkature Rajashekar, Madhusudhan" , "Coelho Luciano (Nokia-MS/Helsinki)" , "linux-omap@vger.kernel.org" , "ext DebBarma, Tarun Kanti" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Vitaly, On Thu, Aug 12, 2010 at 12:34 AM, Vitaly Wool wrote: > On Wed, Aug 11, 2010 at 10:10 PM, Ohad Ben-Cohen wrote: >> Think of several wl1271 devices, each of which is represented by two >> devices; an SDIO function, and a platform device. The SDIO function >> stands for a specific MMC controller the device is hardwired to, and >> the platform device stands for the external irq line that the device >> is hardwired to. > > my view on this is that you're hunting the false problem here. I > wonder how likely it is that two hardwired WL12xx chips are there on > the same board. > > It's theoretically possible that there's one hardwired device and one > hot-pluggable one but the latter one can't have platform_data anyway. We do have strange-looking setups with two hardwired devices (especially on new bring-ups), so it would be nice not to limit the driver to a single device. But I agree, it's far from being important. Thanks, Ohad. > > So in my opinion, we either should keep things simple and consider 2 > hardwired WL12XX's to be a very very unlikely case, or we'll end up > discussing board_info once again. > > Thanks, >   Vitaly >