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

Yicong Yang
2021-03-30T14:23:07Z

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