From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752770AbbJFQXi (ORCPT ); Tue, 6 Oct 2015 12:23:38 -0400 Received: from vps0.lunn.ch ([178.209.37.122]:36721 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751709AbbJFQXg (ORCPT ); Tue, 6 Oct 2015 12:23:36 -0400 Date: Tue, 6 Oct 2015 18:23:34 +0200 From: Andrew Lunn To: Marcin Wojtas Cc: linux-kernel@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" , "linux-mmc@vger.kernel.org" , Ulf Hansson , Sebastian Hesselbarth , Jason Cooper , Thomas Petazzoni , Gregory =?iso-8859-1?Q?Cl=E9ment?= , nadavh@marvell.com, Lior Amsalem , Tawfik Bayouk , Grzegorz Jaszczyk Subject: Re: [PATCH 6/8] ARM: mvebu: enable SDHCI card detection using DAT3 pin on A388-GP Message-ID: <20151006162334.GB3557@lunn.ch> References: <1444094562-31165-1-git-send-email-mw@semihalf.com> <1444094562-31165-7-git-send-email-mw@semihalf.com> <20151006033131.GA24230@lunn.ch> <20151006144523.GA32615@lunn.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > We have three options here: > - leave GPIO-based card detection and see if in future anyone > complains about not working detection > - switch to DAT3 detection - yes you're right, that it is a regression > for all boards < 1.5 > - enable SW polling for detection ("broken-cd") which should satisfy > all kind of boards Then i would suggest either broken-cd, or two .dtb blobs and good comments in the dts files about how to identify the boards and what happens if you run the wrong DTB blob. Andrew