Respect ADC clocking limitations. The current clock settings lead
to bogous reading on a 500MHz clocked Vybrid SoC's. Additionally,
also implement a sysfs-property to configure the conversion mode
available in this ADC peripherial.

Changes since v1:
- Use ext_info for conversion mode

Stefan Agner (3):
  iio: adc: vf610: use ADC clock within specification
  iio: adc: vf610: implement configurable conversion modes
  ARM: dts: add property for maximum ADC clock frequencies

 .../devicetree/bindings/iio/adc/vf610-adc.txt      |   9 +
 arch/arm/boot/dts/vfxxx.dtsi                       |   4 +
 drivers/iio/adc/vf610_adc.c                        | 225 +++++++++++++++------
 3 files changed, 172 insertions(+), 66 deletions(-)

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2.3.3