linux-kernel - [PATCH v5 0/5] Add support for HiSilicon I2C controller

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Date:   Tue, 30 Mar 2021 22:19:21 +0800
From:   Yicong Yang <yangyicong@...ilicon.com>
To:     <wsa@...nel.org>, <andriy.shevchenko@...ux.intel.com>,
        <linux-i2c@...r.kernel.org>, <Sergey.Semin@...kalelectronics.ru>,
        <linux-kernel@...r.kernel.org>
CC:     <digetx@...il.com>, <treding@...dia.com>,
        <jarkko.nikula@...ux.intel.com>, <rmk+kernel@...linux.org.uk>,
        <song.bao.hua@...ilicon.com>, <john.garry@...wei.com>,
        <mika.westerberg@...ux.intel.com>, <yangyicong@...ilicon.com>,
        <prime.zeng@...wei.com>, <linuxarm@...wei.com>
Subject: [PATCH v5 0/5] Add support for HiSilicon I2C controller

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 v4:
- and Andy's review-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              | 506 +++++++++++++++++++++++++++++
 drivers/i2c/i2c-core-base.c                |  26 ++
 include/linux/i2c.h                        |  21 ++
 7 files changed, 575 insertions(+), 16 deletions(-)
 create mode 100644 drivers/i2c/busses/i2c-hisi.c

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2.8.1