From patchwork Thu Apr 8 11:17:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 417741 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69322C43461 for ; Thu, 8 Apr 2021 11:20:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35FEE61105 for ; Thu, 8 Apr 2021 11:20:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230344AbhDHLUR (ORCPT ); Thu, 8 Apr 2021 07:20:17 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:15189 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231163AbhDHLUR (ORCPT ); Thu, 8 Apr 2021 07:20:17 -0400 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4FGJd72FrWzpWYd; Thu, 8 Apr 2021 19:17:15 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.498.0; Thu, 8 Apr 2021 19:19:55 +0800 From: Yicong Yang To: , , , , CC: , , , , , , , , , Subject: [PATCH v7 0/5] Add support for HiSilicon I2C controller Date: Thu, 8 Apr 2021 19:17:16 +0800 Message-ID: <1617880641-664-1-git-send-email-yangyicong@hisilicon.com> X-Mailer: git-send-email 2.8.1 MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add driver and MAINTAINERS for HiSilicon I2C controller on Kunpeng SoC. Also provide the devm_*() variants for adding the I2C adapters. Add a public api to provide I2C frequency mode strings and convert designware driver to use it. Change since v6: - make the i2c_freq_mode_string() exported rather than inline - addressed the comments from Wolfram and Jarkko for the driver Change since v5: - address the comment from Dmitry and add his Reviewed-by - address the comment from Jarkko and add his Reviewed-by and Tested-by - add Jarkko's Acked-by for designware patch Link: https://lore.kernel.org/linux-i2c/1617113966-40498-1-git-send-email-yangyicong@hisilicon.com/ Change since v4: - and Andy's Reviewed-by - attach Andy's patch of switch designware driver to use i2c_freq_mode_string() Link: https://lore.kernel.org/linux-i2c/1617109549-4013-1-git-send-email-yangyicong@hisilicon.com/ Link: https://lore.kernel.org/linux-i2c/20210330134633.29889-1-andriy.shevchenko@linux.intel.com/ Change since v3: - split the bus mode string api to I2C as suggested by Andy - simplify the devm variants and change the export format - address the comments of the HiSilicon I2C driver from Andy and Dmitry, thanks! Link: https://lore.kernel.org/linux-i2c/1616411413-7177-1-git-send-email-yangyicong@hisilicon.com/ Change since v2: - handle -EPROBE_DEFER case when get irq number by platform_get_irq() Link: https://lore.kernel.org/linux-i2c/1615296137-14558-1-git-send-email-yangyicong@hisilicon.com/ Change since v1: - fix compile test error on 32bit arch, reported by intel lkp robot: 64 bit division without using kernel wrapper in probe function. Link:https://lore.kernel.org/linux-i2c/1615016946-55670-1-git-send-email-yangyicong@hisilicon.com/ Andy Shevchenko (1): i2c: designware: Switch over to i2c_freq_mode_string() Yicong Yang (4): i2c: core: add managed function for adding i2c adapters i2c: core: add api to provide frequency mode strings i2c: add support for HiSilicon I2C controller MAINTAINERS: Add maintainer for HiSilicon I2C driver MAINTAINERS | 7 + drivers/i2c/busses/Kconfig | 10 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-designware-master.c | 20 +- drivers/i2c/busses/i2c-hisi.c | 504 +++++++++++++++++++++++++++++ drivers/i2c/i2c-core-base.c | 47 +++ include/linux/i2c.h | 4 + 7 files changed, 577 insertions(+), 16 deletions(-) create mode 100644 drivers/i2c/busses/i2c-hisi.c