Re: [PATCH v8 00/11] tnetv107x ssp drivers

[Kevin Hilman <khilman-l0cyMroinI0@public.gmane.org>]

Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org> writes:

> TI's sequencer serial port (TI-SSP) is a jack-of-all-trades type of serial port
> device.  It has a built-in programmable execution engine that can be programmed
> to operate as almost any serial bus (I2C, SPI, EasyScale, and others).

Hi Cyril,

Can you include Grant's ack and repost this a bit broader.  Add LKML and
linux-arm-kernel please.

Thanks,

Kevin

> This patch series implements a driver stack that looks like the following:
>
>                              +--------+
>                              | eeprom | . . .
>                              +--------+
>    +-----------+             +--------------+ +---------+
>    | regulator | . . .       |   i2c-gpio   | | 1-wire  | . . .
>    +-----------+             +--------------+ +---------+
>    +----------------------+  +--------------------------------+
>    |       ssp-spi        |  |           ssp-gpio             |
>    +----------------------+  +--------------------------------+
>    +----------------------------------------------------------+
>    |                            ssp                           |
>    +----------------------------------------------------------+
>
> Changes between v8 and v7 of this series:
>   - Reorder commits, removed regulator driver patch (already upstreamed)
>   - Renamed static function definitions to keep namespace clean (mfd, gpio)
>   - Removed instance pdata in mfd driver
>
> Changes between v7 and v6 of this series:
>   - Workaround for iosel2 register not reading back set bits.
>   - Update backlight status once probe succeeds.
>
> Changes between v6 and v5 of this series:
>   - Changed initcalls to module_init() across all drivers.  This series now
>     uses a late_initcall() in the board to delay initialization of gpio and
>     regulator dependent devices.
>
> Changes between v5 and v4 of this series:
>   - Moved drivers from misc/gpio/spi to mfd
>   - Removed implicit init-time iosel setup
>   - Minor cleanups in backlight driver
>
> Changes between v3 and v4 of this series:
>   - Replaced polled wait for sequence termination with interrupt
>   - Improved locking within SSP driver
>   - Other minor cleanups
>
> Changes between v2 and v3 of this series:
>   - Minor cleanups in Kconfig and Makefile ordering
>
> Changes between v1 and v2 of this series:
>   - Replaced open()/close() semantics with dynamic platform_device
>     registration on SSP probe.
>   - Removed user-land interface to regulator registers
>   - More sensible regulator constraints
>   - Other minor cleanups
>
>
> Cyril Chemparathy (11):
>   mfd: add driver for sequencer serial port
>   spi: add ti-ssp spi master driver
>   gpio: add ti-ssp gpio driver
>   backlight: add support for tps6116x controller
>   davinci: add tnetv107x ssp platform device
>   davinci: add ssp config for tnetv107x evm board
>   davinci: add spi devices on tnetv107x evm
>   davinci: add tnetv107x evm regulators
>   davinci: add tnetv107x evm ti-ssp gpio device
>   davinci: add tnetv107x evm backlight device
>   davinci: add tnetv107x evm i2c eeprom device
>
>  arch/arm/mach-davinci/board-tnetv107x-evm.c    |  197 ++++++++++
>  arch/arm/mach-davinci/devices-tnetv107x.c      |   25 ++
>  arch/arm/mach-davinci/include/mach/tnetv107x.h |    2 +
>  arch/arm/mach-davinci/tnetv107x.c              |    2 +-
>  drivers/gpio/Kconfig                           |   10 +
>  drivers/gpio/Makefile                          |    1 +
>  drivers/gpio/ti-ssp-gpio.c                     |  207 ++++++++++
>  drivers/mfd/Kconfig                            |   11 +
>  drivers/mfd/Makefile                           |    1 +
>  drivers/mfd/ti-ssp.c                           |  476 ++++++++++++++++++++++++
>  drivers/spi/Kconfig                            |   10 +
>  drivers/spi/Makefile                           |    1 +
>  drivers/spi/ti-ssp-spi.c                       |  402 ++++++++++++++++++++
>  drivers/video/backlight/Kconfig                |    7 +
>  drivers/video/backlight/Makefile               |    2 +-
>  drivers/video/backlight/tps6116x.c             |  299 +++++++++++++++
>  include/linux/mfd/ti_ssp.h                     |   97 +++++
>  17 files changed, 1748 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/gpio/ti-ssp-gpio.c
>  create mode 100644 drivers/mfd/ti-ssp.c
>  create mode 100644 drivers/spi/ti-ssp-spi.c
>  create mode 100644 drivers/video/backlight/tps6116x.c
>  create mode 100644 include/linux/mfd/ti_ssp.h
>
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