Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754005AbaDYQbz (ORCPT ); Fri, 25 Apr 2014 12:31:55 -0400 Received: from smtp.codeaurora.org ([198.145.11.231]:43353 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753627AbaDYQbv (ORCPT ); Fri, 25 Apr 2014 12:31:51 -0400 Message-ID: <535A8DF5.4090104@codeaurora.org> Date: Fri, 25 Apr 2014 11:31:49 -0500 From: Timur Tabi User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:28.0) Gecko/20100101 Firefox/28.0 SeaMonkey/2.25 MIME-Version: 1.0 To: "Rafael J. Wysocki" , "Westerberg, Mika" CC: Mathias Nyman , Linus , Grant Likely , lkml , "Rafael J. Wysocki" Subject: Re: [PATCH v3 1/1] pinctrl: add Intel BayTrail GPIO/pinctrl support References: <534D0370.50108@linux.intel.com> <535005BA.1040405@codeaurora.org> <5357A80B.8030701@linux.intel.com> <5357ACF1.9070206@codeaurora.org> <20140423135915.GY30677@intel.com> <5357D8CC.3080501@codeaurora.org> <20140424063546.GA30677@intel.com> <5358F30E.9080402@codeaurora.org> <20140424115848.GG30677@intel.com> <53592D04.4040001@codeaurora.org> <20140425074156.GI30677@intel.com> <535A899E.5020801@codeaurora.org> <535A8B91.6030903@intel.com> In-Reply-To: <535A8B91.6030903@intel.com> 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 Rafael J. Wysocki wrote: >> > > I would be interested in understanding what exactly the flow is in that > situation, so care to educate me? What does the driver do to trigger > this and what exactly does happen in response to that? I only just learned some of this myself, so I'm no expert. My understanding is that the all of the pinctrl-* properties and nodes are scanned by the pinctrl layer itself. So you could have a SATA controller node that points to a pin control node (via phandles). When the SATA driver is probed, the pinctrl layer notices the phandles and automatically calls the pinctrl layer to configure the pins and pin muxes. -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/