From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A633FC433EF for ; Mon, 7 Feb 2022 08:07:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243536AbiBGIGY (ORCPT ); Mon, 7 Feb 2022 03:06:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244862AbiBGH4I (ORCPT ); Mon, 7 Feb 2022 02:56:08 -0500 X-Greylist: delayed 1120 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Sun, 06 Feb 2022 23:56:05 PST Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71154C043185; Sun, 6 Feb 2022 23:56:05 -0800 (PST) Received: from canpemm500009.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4JsdHX3TJBzbjwM; Mon, 7 Feb 2022 15:36:24 +0800 (CST) Received: from [10.67.102.169] (10.67.102.169) by canpemm500009.china.huawei.com (7.192.105.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Mon, 7 Feb 2022 15:37:18 +0800 CC: , Subject: Re: [PATCH 0/2] Add I2C bus recovery support on Kunpeng 920/930 To: Yicong Yang , , , , , , References: <20220125124930.50369-1-yangyicong@hisilicon.com> From: Yicong Yang Message-ID: <0db7b7ab-a640-b8c3-33cc-29731a65227b@huawei.com> Date: Mon, 7 Feb 2022 15:37:17 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 MIME-Version: 1.0 In-Reply-To: <20220125124930.50369-1-yangyicong@hisilicon.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.102.169] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500009.china.huawei.com (7.192.105.203) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org a friendly ping ... Hi Designware maintainers and Wolfram, any comments for this? thanks. On 2022/1/25 20:49, Yicong Yang wrote: > This series adds the I2C bus recovery support on Kunpeng 920/930. > We're using HiSilicon I2C controller on Kunpeng 930 and Designware > I2C controller on Kunpeng 920. For both platform, the SCL/SDA pins > are multiplexed with GPIOs. Both driver use generic GPIO recovery > method and we need to switch the pin mutiplexing before/after the > recovery process. We use ACPI method to help on the pin mux switching > which is also introduced in this series. > > Yicong Yang (2): > i2c: hisi: Add generic GPIO bus recovery support > i2c: designware: Add ACPI assisted recovery support > > drivers/i2c/busses/i2c-designware-core.h | 2 + > drivers/i2c/busses/i2c-designware-master.c | 84 ++++++++++++++++++++- > drivers/i2c/busses/i2c-designware-platdrv.c | 6 +- > drivers/i2c/busses/i2c-hisi.c | 78 +++++++++++++++++++ > 4 files changed, 164 insertions(+), 6 deletions(-) >