From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [PATCH v2 1/1] pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler Date: Mon, 30 Jan 2017 13:51:49 +0200 Message-ID: <20170130115149.GM17297@lahna.fi.intel.com> References: <20170130113528.17838-1-alexander.stein@systec-electronic.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga04.intel.com ([192.55.52.120]:9219 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752821AbdA3LxR (ORCPT ); Mon, 30 Jan 2017 06:53:17 -0500 Content-Disposition: inline In-Reply-To: <20170130113528.17838-1-alexander.stein@systec-electronic.com> Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: Alexander Stein Cc: Heikki Krogerus , Linus Walleij , linux-gpio@vger.kernel.org On Mon, Jan 30, 2017 at 12:35:28PM +0100, Alexander Stein wrote: > According to VLI64 Intel Atom E3800 Specification Update (#329901) > concurrent read accesses may result in returning 0xffffffff and write > accesses may be dropped silently. > To workaround all accesses must be protected by locks. > > Signed-off-by: Alexander Stein Acked-by: Mika Westerberg Should probably go to stable as well.