ssp4 54 arch/arm/mach-mmp/clock-pxa168.c static APBC_CLK(ssp4, SSP4, 4, 0); ssp4 106 arch/arm/mach-mmp/pxa168.c PXA168_DEVICE(ssp4, "pxa168-ssp", 3, SSP4, 0xd4020000, 0x40, 58, 59);