1. 根目录:
2. Documentation
3. devicetree
4. bindings
5. pinctrl
6. fsl,imx6dl-pinctrl.txt

* Freescale IMX6 DualLite/Solo IOMUX Controller

Please refer to fsl,imx-pinctrl.txt in this directory for common binding part
and usage.

Required properties:
- compatible: "fsl,imx6dl-iomuxc"
- fsl,pins: two integers array, represents a group of pins mux and config
  setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a
  pin working on a specific function, CONFIG is the pad setting value like
  pull-up for this pin. Please refer to imx6dl datasheet for the valid pad
  config settings.

CONFIG bits definition:
PAD_CTL_HYS                     (1 << 16)
PAD_CTL_PUS_100K_DOWN           (0 << 14)
PAD_CTL_PUS_47K_UP              (1 << 14)
PAD_CTL_PUS_100K_UP             (2 << 14)
PAD_CTL_PUS_22K_UP              (3 << 14)
PAD_CTL_PUE                     (1 << 13)
PAD_CTL_PKE                     (1 << 12)
PAD_CTL_ODE                     (1 << 11)
PAD_CTL_SPEED_LOW               (1 << 6)
PAD_CTL_SPEED_MED               (2 << 6)
PAD_CTL_SPEED_HIGH              (3 << 6)
PAD_CTL_DSE_DISABLE             (0 << 3)
PAD_CTL_DSE_240ohm              (1 << 3)
PAD_CTL_DSE_120ohm              (2 << 3)
PAD_CTL_DSE_80ohm               (3 << 3)
PAD_CTL_DSE_60ohm               (4 << 3)
PAD_CTL_DSE_48ohm               (5 << 3)
PAD_CTL_DSE_40ohm               (6 << 3)
PAD_CTL_DSE_34ohm               (7 << 3)
PAD_CTL_SRE_FAST                (1 << 0)
PAD_CTL_SRE_SLOW                (0 << 0)

Refer to imx6dl-pinfunc.h in device tree source folder for all available
imx6dl PIN_FUNC_ID.