PAD_ID             14 drivers/pinctrl/freescale/pinctrl-imx1.c #define PAD_ID(port, pin)	((port) * 32 + (pin))
PAD_ID             14 drivers/pinctrl/freescale/pinctrl-imx21.c #define PAD_ID(port, pin)	((port) * 32 + (pin))
PAD_ID             18 drivers/pinctrl/freescale/pinctrl-imx27.c #define PAD_ID(port, pin) (port*32 + pin)