i.MX28 LRADC driver

Introduce the i.MX28 LRADC driver and support tech that comes with it.

Marek Vasut (3):
  IIO: Add 4-byte unsigned reads into generic-buffer example
  IIO: Add basic MXS LRADC driver
  IIO: arm: Add LRADC to i.MX28 dts

 arch/arm/boot/dts/imx28.dtsi                       |    3 +
 drivers/staging/iio/Documentation/generic_buffer.c |   10 +
 drivers/staging/iio/adc/Kconfig                    |   12 +
 drivers/staging/iio/adc/Makefile                   |    1 +
 drivers/staging/iio/adc/mxs-lradc.c                |  591 ++++++++++++++++++++
 5 files changed, 617 insertions(+)
 create mode 100644 drivers/staging/iio/adc/mxs-lradc.c

Cc: Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Juergen Beisert <jbe-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Lars-Peter Clausen <lars-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
Cc: Wolfgang Denk <wd-ynQEQJNshbs@public.gmane.org>
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1.7.10.4