Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754591AbaDNPLt (ORCPT ); Mon, 14 Apr 2014 11:11:49 -0400 Received: from smtp.codeaurora.org ([198.145.11.231]:52227 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751128AbaDNPLq (ORCPT ); Mon, 14 Apr 2014 11:11:46 -0400 Message-ID: <534BFAAF.3070805@codeaurora.org> Date: Mon, 14 Apr 2014 10:11:43 -0500 From: Timur Tabi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130329 Thunderbird/17.0.5 MIME-Version: 1.0 To: Mathias Nyman CC: Linus , Grant Likely , lkml Subject: Re: [PATCH v3 1/1] pinctrl: add Intel BayTrail GPIO/pinctrl support References: <1371555182-12418-1-git-send-email-mathias.nyman@linux.intel.com> <1371555182-12418-2-git-send-email-mathias.nyman@linux.intel.com> <534B93BA.6020406@linux.intel.com> In-Reply-To: <534B93BA.6020406@linux.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 On 04/14/2014 02:52 AM, Mathias Nyman wrote: >> > > This was the conclusion we reached after some discussion with Linus W. > Initially this was just a GPIO driver, but Linus correctly spotted that > Baytrail has many pinctrl-like features (like pin muxing, etc) that we > might need to address in the future. > > threads where this was discussed: > > http://marc.info/?l=linux-kernel&m=136994203308585&w=2 > http://marc.info/?l=linux-kernel&m=137113578604763&w=2 So this is the interesting part: > We expect BIOS to set all pin configurations correctly. This device will only be used on an ACPI system, right? And isn't ACPI supposed to hide all the pinctrl programming from the OS? I thought that was the whole point behind ACPI and the reason why ARM64 isn't going to use device trees. -- 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/