From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755182AbaE3Is2 (ORCPT ); Fri, 30 May 2014 04:48:28 -0400 Received: from mga09.intel.com ([134.134.136.24]:39393 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751665AbaE3Is0 (ORCPT ); Fri, 30 May 2014 04:48:26 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.98,939,1392192000"; d="scan'208";a="520132346" Date: Fri, 30 May 2014 11:48:22 +0300 From: Mika Westerberg To: eric.ernst@linux.intel.com Cc: linus.walleij@linaro.org, linux-kernel@vger.kernel.org, mark.gross@intel.com Subject: Re: [PATCH 1/1] PINCTRL: Warn if direct IRQ GPIO set to output Message-ID: <20140530084822.GC1645@lahna.fi.intel.com> References: <1401218804-77997-1-git-send-email-eric.ernst@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1401218804-77997-1-git-send-email-eric.ernst@linux.intel.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 Tue, May 27, 2014 at 12:26:44PM -0700, eric.ernst@linux.intel.com wrote: > From: Eric Ernst > > For Baytrail, you should never set a GPIO set to direct_irq > to output mode. When direct_irq_en is set for a GPIO, it is > tied directly to an APIC internally, and making the pad output > does not make any sense. Assert a WARN() in the event this happens. Can't we just clear that flag when the GPIO is requested? Or is this something which can't be done at this point?