[PATCH v7 0/3] iio: Add Cosmic Circuits ADC support

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This series add the support for an ADC IP block from Cosmic Circuits.
The patchset is based on v3.19-rc3.

As agreed with Rob, this series drops the vendor prefix in the
adc-reserved-channels DT property. This property is generic enough to
be used in other drivers (at91 is a potential candidate).

A follow-up patch can use the property in at91 and add it to the
IIO generic bindings.

Changes from v6:

  * Dropped the vendor prefix in the adc-reserved-channels property,
    as suggested by Rob.
  * Added Andrew's Reviewed-by tags. Andrew reviewed v3, and the driver
    changed little since then.
    http://www.spinics.net/lists/linux-iio/msg15630.html.

Changes from v5:

  * Fixed CC10001_ADC_CH_MASK macro definition, to separate the channel
    number from the channel map, as noted by Hartmut.
  * Return the real error code in devm_regulator_get failure.

Changes from v4:

  * Added a compile-time dependency on REGULATOR and HAVE_CLK.
  * Replaced the silly XOR operation for a proper mask out of the
    available channels.

Changes from v3:

  * Fixed a few style nitpicks as per Hartmut's feedback.
  * Used GENMASK() to build the channel mask, which fixes a very nasty
    bug. Also found by Hartmut.

Changes from v2:

  * Changed a devicetree property from adc-available-channels to
    adc-reserved-channels, so it can be made optional.
  * Renamed the driver from cc_10001_xxx to cc10001_xxx so it's consistent
    with the rest of the kernel style.
  * Some more minor cosmetic fixes.

Changes from v1:

  * Removed unneeded header includes.
  * Changed all the names and macros prefix: s/CC_10001_/CC10001_.
  * Used .update_scan_mode callback to preallocate the buffer.
  * Used indio_dev for the struct iio_dev.
  * Only read the regulator voltage when needed.
  * Fixed probe() error handling.
  * Used for_each_set_bit() instead of open-coding it.
  * Name the power-down register as _POWER_UP, to make the code
    less silly.
  * Error out when no valid sample can be read (i.e. when end-of-conversion
    poll times out).
  * ... plus some assorted code cleaning based on the feedback.

Ezequiel Garcia (1):
  DT: Add a vendor prefix for Cosmic Circuits

Phani Movva (2):
  iio: adc: Cosmic Circuits 10001 ADC driver
  DT: iio: adc: Add CC_10001 binding documentation

 .../devicetree/bindings/iio/adc/cc10001_adc.txt    |  22 ++
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 drivers/iio/adc/Kconfig                            |  11 +
 drivers/iio/adc/Makefile                           |   1 +
 drivers/iio/adc/cc10001_adc.c                      | 423 +++++++++++++++++++++
 5 files changed, 458 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/cc10001_adc.txt
 create mode 100644 drivers/iio/adc/cc10001_adc.c

-- 
2.2.1

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