From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754220AbcCHIGs (ORCPT ); Tue, 8 Mar 2016 03:06:48 -0500 Received: from mga14.intel.com ([192.55.52.115]:43665 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754118AbcCHIGi (ORCPT ); Tue, 8 Mar 2016 03:06:38 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,556,1449561600"; d="scan'208";a="760061298" Subject: Re: [PATCH v2] i2c/designware: enable i2c controller to suspend/resume asynchronously To: Wolfram Sang , Andy Shevchenko References: <569893D1.5050403@linux.intel.com> <56AF73E1.7080501@linux.intel.com> <1454339763.32507.26.camel@linux.intel.com> <20160201155422.GC10607@tetsubishi> Cc: Jarkko Nikula , Mika Westerberg , linux-i2c@vger.kernel.org, "linux-kernel@vger.kernel.org" From: "Fu, Zhonghui" Message-ID: <56DE87D7.7060205@linux.intel.com> Date: Tue, 8 Mar 2016 16:05:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: <20160201155422.GC10607@tetsubishi> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/1/2016 11:54 PM, Wolfram Sang wrote: >>>> device may be completed in separate kernel thread. PM core ensures >>>> all power state transition dependency between devices. This patch > I'd like an Ack on that from a PM maintainer, because I think chips like > PMICs are special and might not be covered by the generic case... > >> Besides that we have to be really aware about DMA power related fix >> introduced in v4.5-rc1 in acpi_lpss.c [1]. So, I would like to see a >> wide testing especially on Intel Baytrail / Braswell platforms before >> enabling it. > And this one, too. Because of long leave, so sorry for very late reply. I agree with you. Need more investigation and test for this patch before enabling it. Thanks, Zhonghui >