* Freescale IMX51 IOMUX ControllerPlease refer to fsl,imx-pinctrl.txt in this directory for common binding partand usage.Required properties:- compatible: "fsl,imx51-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 imx51 datasheet for the valid pad config settings.CONFIG bits definition:PAD_CTL_HVE (1 << 13)PAD_CTL_HYS (1 << 8)PAD_CTL_PKE (1 << 7)PAD_CTL_PUE (1 << 6)PAD_CTL_PUS_100K_DOWN (0 << 4)PAD_CTL_PUS_47K_UP (1 << 4)PAD_CTL_PUS_100K_UP (2 << 4)PAD_CTL_PUS_22K_UP (3 << 4)PAD_CTL_ODE (1 << 3)PAD_CTL_DSE_LOW (0 << 1)PAD_CTL_DSE_MED (1 << 1)PAD_CTL_DSE_HIGH (2 << 1)PAD_CTL_DSE_MAX (3 << 1)PAD_CTL_SRE_FAST (1 << 0)PAD_CTL_SRE_SLOW (0 << 0)Refer to imx51-pinfunc.h in device tree source folder for all availableimx51 PIN_FUNC_ID.