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Date:   Thu, 21 May 2020 14:09:07 +0300
From:   Tali Perry <>
Cc:,,,,, Tali Perry <>,
        kbuild test robot <>
Subject: [PATCH v12 0/3] i2c: npcm7xx: add NPCM i2c controller driver

This patch set adds i2c controller support 
for the Nuvoton NPCM Baseboard Management Controller (BMC).

NPCM7xx includes 16 I2C controllers. This driver operates the controller.
This module also includes a slave mode.

v12 -> v11:
	- Fix according to maintainer comments.
	- debugfs simplified (usedebugfs_create_u64).
	- slave read fifo split from master read fifo.
v11 -> v10:
	- Fix according to maintainer comments.
	- Init clk simplified.
	- Comments in c99
	- Split master irq function.
	- debugfs not mandatory.
	- yaml file fix.

v10 -> v9:
	- Fix according to maintainer comments.
	- binding file changed to yaml format.
	- Shorten recovery flow.
	- Add support for health monitoring counters.

v9 -> v8:
	- Fix according to maintainer comments.
	- Split lines of iowrite..(ioread..) to separate lines.
	- Use readx_poll_timeout_atomic
	- resolve various style issues.
v8 -> v7:
	- Split to two commits, one for master, one for slave.
	- Rename smb to i2c.
	- Remove global vars.

v7 -> v6:
	- Rebased on Linux 5.4-rc8  (was Linux 5.4-rc7).
	- Fix issue found by kbuild test robot (redundant include).
	- Note: left a warning related to fall through. This fall through is
v6 -> v5:
	- Update documentation

v5 -> v4:
	- support recovery
	- master-slave switch support needed for IPMB

v4 -> v3:
	- typo on cover letter.

v3 -> v2:
	- fix dt binding: compatible name: omit "bus"

v2 -> v1:
	- run check patch in strict mode.
	- use linux crc.
	- define regs in constant offset without base.
	- remove debug prints.
	- no declarations for local functions.
v1: initial version

Signed-off-by: Tali Perry <>
Reported-by: kbuild test robot <>

Tali Perry (3):
  dt-bindings: i2c: npcm7xx: add NPCM I2C controller documentation
  i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver
  i2c: npcm7xx: Add support for slave mode for Nuvoton NPCM BMC I2C
    controller driver.

 .../bindings/i2c/nuvoton,npcm7xx-i2c.yaml     |   62 +
 drivers/i2c/busses/Kconfig                    |    9 +
 drivers/i2c/busses/Makefile                   |    1 +
 drivers/i2c/busses/i2c-npcm7xx.c              | 2426 +++++++++++++++++
 4 files changed, 2498 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-npcm7xx.c

base-commit: b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce

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