MUX_PAD_CTRL_MASK 32 arch/arm/mach-imx/iomux-v3.c u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT; MUX_PAD_CTRL_MASK 70 arch/arm/mach-imx/iomux-v3.h #define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | MUX_PAD_CTRL(pad))