PAD_CTL_SRE_SLOW 54 arch/arm/mach-imx/iomux-mx3.h PAD_CTL_SRE_SLOW = 0x0 << 0, PAD_CTL_SRE_SLOW 94 arch/arm/mach-imx/iomux-v3.h #define PAD_CTL_SRE_SLOW (0 << 0)