From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarkko Nikula Subject: Re: [PATCH] i2c: designware: Get selected speed mode sda-hold-time via ACPI Date: Fri, 31 Mar 2017 15:12:05 +0300 Message-ID: <237c2cf5-17dd-3d9c-ed4e-d0eadf611dfc@linux.intel.com> References: <1490690882-11623-1-git-send-email-chin.yew.tan@intel.com> <1490690882-11623-2-git-send-email-chin.yew.tan@intel.com> <1490692426.708.26.camel@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mga14.intel.com ([192.55.52.115]:30466 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932858AbdCaMOU (ORCPT ); Fri, 31 Mar 2017 08:14:20 -0400 In-Reply-To: <1490692426.708.26.camel@linux.intel.com> Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: Andy Shevchenko , Tan Chin Yew , Wolfram Sang , Mika Westerberg Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org On 03/28/2017 12:13 PM, Andy Shevchenko wrote: > On Tue, 2017-03-28 at 16:48 +0800, Tan Chin Yew wrote: >> Sda-hold-time is an important parameter for tuning i2c to meet the >> electrical specification especially for high speed. I2C with incorrect >> sda-hold-time may cause lost arbitration error. Instead of loading all >> speed mode settings, only selected speed mode settings are loaded. >> >> Signed-off-by: Tan Chin Yew > > > Looks good to me: > > Reviewed-by: Andy Shevchenko > Acked-by: Jarkko Nikula