linux-kernel - [PATCH linux-next v9 0/3] mfd: flexcom: add a driver for Flexcom

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Message-ID: <cover.1441118159.git.cyrille.pitchen@atmel.com>
Date:	Tue, 1 Sep 2015 16:46:40 +0200
From:	Cyrille Pitchen <cyrille.pitchen@...el.com>
To:	<nicolas.ferre@...el.com>, <boris.brezillon@...e-electrons.com>,
	<alexandre.belloni@...e-electrons.com>, <sameo@...ux.intel.com>,
	<lee.jones@...aro.org>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>,
	Cyrille Pitchen <cyrille.pitchen@...el.com>
Subject: [PATCH linux-next v9 0/3] mfd: flexcom: add a driver for Flexcom

ChangeLog

v9:
- go back to v5 (use the new "atmel,flexcom-mode" DT property).
- fix the name of the spi node in the DT example: from spi@...34400 to
  spi@400
- align the fields of the struct platform_driver atmel_flexcom_driver as
  suggested by Lee Jones.

v8:
- fix the name of the spi node in the DT example: from spi@...34400 to
  spi@2,0
- use the return code of op_property_read_u32_index() instead of -EINVAL
  to report error.
- add Acked-by from Nicolas Ferre

v7:
- read the operating mode from the very first u32 of the reg property from
  the first available child node (should be unique).
- update the DT bindings documentation accordingly.

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 (3):
  mfd: atmel-flexcom: create include file with macros used by DT
    bindings
  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                        | 104 +++++++++++++++++++++
 include/dt-bindings/mfd/atmel-flexcom.h            |  16 ++++
 5 files changed, 199 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt
 create mode 100644 drivers/mfd/atmel-flexcom.c
 create mode 100644 include/dt-bindings/mfd/atmel-flexcom.h

-- 
1.8.2.2

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