From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=linux.intel.com (client-ip=134.134.136.65; helo=mga03.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46P2M22lP6zDqtv for ; Thu, 5 Sep 2019 10:56:29 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Sep 2019 17:56:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,468,1559545200"; d="scan'208";a="266844874" Received: from yoojae-mobl1.amr.corp.intel.com (HELO [10.251.21.134]) ([10.251.21.134]) by orsmga001.jf.intel.com with ESMTP; 04 Sep 2019 17:56:27 -0700 Subject: Re: [PATCH dev-5.2 0/2] i2c: aspeed: Add H/W timeout support To: Brendan Higgins , Joel Stanley Cc: Ryan Chen , Andrew Jeffery , OpenBMC Maillist , Tao Ren References: <20190904200758.5420-1-jae.hyun.yoo@linux.intel.com> From: Jae Hyun Yoo Message-ID: <637a86f5-45b2-e37e-2bed-6a65b5cda477@linux.intel.com> Date: Wed, 4 Sep 2019 17:56:25 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Sep 2019 00:56:31 -0000 On 9/4/2019 4:50 PM, Brendan Higgins wrote: > On Wed, Sep 4, 2019 at 3:55 PM Joel Stanley wrote: >> >> Hi Jae, >> >> On Wed, 4 Sep 2019 at 20:08, Jae Hyun Yoo wrote: >>> >>> In case of multi-master environment, if a peer master incorrectly handles >>> a bus in the middle of a transaction, I2C hardware hangs in slave state >>> and it can't escape from the slave state, so this commit adds slave >>> inactive timeout support to recover the bus in the case. >>> >>> By applying this change, SDA data-low and SCL clock-low timeout feature >>> also could be enabled which was disabled previously. >> >> Please consider sending your RFC patches to the upstream list. You >> have a big backlog of patches now. > > Joel, thanks for keeping track of this! > > Sorry, for not keeping up with my emails, I don't think I have time to > continue to maintain this. > > However, I don't want to hand this off in a bad state. I will try to > get up to date on all the emails in the coming weeks. > > Jae, can you start sending things upstream as Joel suggested? Sure, I'll start upstreaming after taking some tests on Cedric's QEMU patch. Thanks, Jae