Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756917AbaKUA3r (ORCPT ); Thu, 20 Nov 2014 19:29:47 -0500 Received: from mail-lb0-f180.google.com ([209.85.217.180]:63328 "EHLO mail-lb0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755788AbaKUA3p convert rfc822-to-8bit (ORCPT ); Thu, 20 Nov 2014 19:29:45 -0500 Content-Type: text/plain; charset=koi8-r Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: [PATCH] i2c: omap: fix i207 errata handling From: Alexander Kochetkov In-Reply-To: <1416529011-21803-1-git-send-email-al.kochet@gmail.com> Date: Fri, 21 Nov 2014 03:29:40 +0300 Cc: Wolfram Sang , Tony Lindgren , Felipe Balbi , Aaro Koskinen Content-Transfer-Encoding: 8BIT Message-Id: <089B5BDA-682D-46B6-869F-A6ADDFE691C3@gmail.com> References: <1416529011-21803-1-git-send-email-al.kochet@gmail.com> To: linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Kochetkov X-Mailer: Apple Mail (2.1878.6) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 21 ????. 2014 ?., ? 3:16, Alexander Kochetkov ???????(?): > commit 6d9939f651419a63e091105663821f9c7d3fec37 (i2c: omap: split out [XR]DR > and [XR]RDY) changed the way how errata i207 (I2C: RDR Flag May Be Incorrectly > Set) get handled. It's is seen if open 6d9939f651419a63e09^ and 6d9939f651419a63e09 side by side: 6d9939f651419a63e09^: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/i2c/busses/i2c-omap.c?id=540a4790f7da0d3ca5ad9d726f198a5eb4db05ec#n800 6d9939f651419a63e09: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/i2c/busses/i2c-omap.c?id=6d9939f651419a63e091105663821f9c7d3fec37#n800 Errata "2C: RDR Flag May Be Incorrectly Set" http://www.ti.com/lit/er/sprz319f/sprz319f.pdf 21 ????. 2014 ?., ? 3:16, Alexander Kochetkov ???????(?): > Found by code review. Real impact haven't seen. > Tested on Beagleboard XM C. Does anybody know the "certain rare conditions" when RDR errata appears? I tested without luck (Beagleboard XM C). -- 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/