From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423813AbcBQUKB (ORCPT ); Wed, 17 Feb 2016 15:10:01 -0500 Received: from pandora.arm.linux.org.uk ([78.32.30.218]:58933 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423320AbcBQUIm (ORCPT ); Wed, 17 Feb 2016 15:08:42 -0500 Date: Wed, 17 Feb 2016 20:08:28 +0000 From: Russell King - ARM Linux To: Marek Szyprowski Cc: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ulf Hansson , Tomeu Vizoso , Greg Kroah-Hartman , Dan Williams , Kukjin Kim , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz Subject: Re: [PATCH v5 RESEND 4/5] ARM: amba: Move reading of periphid to amba_match() Message-ID: <20160217200828.GH19428@n2100.arm.linux.org.uk> References: <1455101250-11327-1-git-send-email-m.szyprowski@samsung.com> <1455101250-11327-5-git-send-email-m.szyprowski@samsung.com> <20160215175250.GJ10826@n2100.arm.linux.org.uk> <56C426C4.7040907@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <56C426C4.7040907@samsung.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 17, 2016 at 08:52:36AM +0100, Marek Szyprowski wrote: > Then the only solution right now I see is to get back to v1: > http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/388199.html > which at least handles correctly device registration when power domain > driver is available. ... and which has the ability to break platforms if the PM domain is not already available. What's wrong with the patch in the link above _combined_ with a patch which addresses the concern I have with that patch: build a list of the failed-to-register devices, and retry them later - maybe from a late_initcall(), or a similar mechanism? My view is the risk to existing systems is _too_ high to apply either this patch, or the patch you link to above, and I refuse to play the "lets apply it and see if we break anything" lottery with this. -- RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.