This patch set add imx7d adc driver support.

Changes in v4:
-sort the include head file alphabetically
-really just clear the bit 31 of register REG_ADC_CH_A\B\C\D_CFG1 
 in function imx7d_adc_sample_rate_set()
-add document in imx7d_adc_isr() to clarify the clear operation
-add function imx7d_adc_power_down()
-adjust the format of the code and add some small changes

Changes in v3:
-move down the irq request in probe()
-remove the property 'num-channels' in dts
-remove some unused head file
-add clear register operation in imx7d_adc_isr()

Changes in v2:
-prefix defines with IMX7D_ for all the register
-use BIT macro to define a single bit
-remove the dma_en from struct adc_feature which is not support currently
-use static const array to replace the switch case code

Haibo Chen (4):
  iio: adc: add IMX7D ADC driver support
  Documentation: add the binding file for Freescale imx7d ADC driver
  ARM: dts: imx7d.dtsi: add ADC support
  ARM: dts: imx7d-sdb: add ADC support

 .../devicetree/bindings/iio/adc/imx7d-adc.txt      |  22 +
 arch/arm/boot/dts/imx7d-sdb.dts                    |  10 +
 arch/arm/boot/dts/imx7d.dtsi                       |  18 +
 drivers/iio/adc/Kconfig                            |   9 +
 drivers/iio/adc/Makefile                           |   1 +
 drivers/iio/adc/imx7d_adc.c                        | 588 +++++++++++++++++++++
 6 files changed, 648 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/imx7d-adc.txt
 create mode 100644 drivers/iio/adc/imx7d_adc.c

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1.9.1