[PATCH v6 0/2] mfd: flexcom: add a driver for Flexcom

[Cyrille Pitchen <cyrille.pitchen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>]

ChangeLog

v6:
- select the operating mode according to the "compatible" DT property of
  the first available child node (should be unique).
- remove the "atmel,flexcom-mode" DT property so the need of a header file
  defining macros for the possible values of this deprecated property.

v5:
- create a header file containing macros used by DT bindings
- use numeric constants instead of strings to select the Flexcom mode
- change the license to "GPL v2"
- update the DT binding documentation to make it more readable and add
  references to USART, SPI and I2C DT binding documentations. remove the
  useless label in the Example section.
- change the register prefix from FX_ to FLEX_ to match the Flexcom
  programmer datasheet.
- rename some variables to make them more understandable.

v4:
- check clk_prepare_enable() return code in atmel_flexcom_probe()
- add a commit message to the DT binding patch

v3:
- remove MODULE_ALIAS()
- add Acked-by from Boris Brezillon and Alexandre Belloni

v2:
- enhance the documentation of DT bindings and change the way the "ranges"
  property is used.
- replace __raw_readl() and __raw_writel() by readl() and writel().
- change the module license to "GPL" for v2 or later
- print the selected flexcom mode after the hardware version

v1:
This series of patches a support to the Atmel Flexcom, a wrapper which
integrates an USART, a SPI controller and a TWI controller. Only one
peripheral can be used at a time. The active function is selected though
the Flexcom Mode Register.

Cyrille Pitchen (2):
  mfd: devicetree: add bindings for Atmel Flexcom
  mfd: atmel-flexcom: add a driver for Atmel Flexible Serial
    Communication Unit

 .../devicetree/bindings/mfd/atmel-flexcom.txt      |  67 +++++++++++
 drivers/mfd/Kconfig                                |  11 ++
 drivers/mfd/Makefile                               |   1 +
 drivers/mfd/atmel-flexcom.c                        | 126 +++++++++++++++++++++
 4 files changed, 205 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
 create mode 100644 drivers/mfd/atmel-flexcom.c

-- 
1.8.2.2

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