[PATCH v13 0/3] i2c: npcm7xx: add NPCM i2c controller driver

[Tali Perry]

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.

---
v13 -> v12:
	- Fix yaml example. Issue found by an updated dt_binding_check.
	- remove double spacing. indentation issues.
	- remove ifdef DEBUG_FS around __init and __exit.
	- debugfs and counters are always present in bus struct.
	- Fix npcm_i2c_write_fifo_slave flow.
	- Remove version number.
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
	  intentional.
	
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 <tali.perry1@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

---
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     |   60 +
 drivers/i2c/busses/Kconfig                    |    9 +
 drivers/i2c/busses/Makefile                   |    1 +
 drivers/i2c/busses/i2c-npcm7xx.c              | 2411 +++++++++++++++++
 4 files changed, 2481 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-npcm7xx.c


base-commit: b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce
-- 
2.22.0