GPIO81_UART1_DSR  321 arch/arm/mach-pxa/mfp-pxa300.h #define GPIO81_UART1_DSR	MFP_CFG_LPM(GPIO81,  AF1, FLOAT)
GPIO81_UART1_DSR  307 arch/arm/mach-pxa/mfp-pxa320.h #define GPIO81_UART1_DSR	MFP_CFG_LPM(GPIO81, AF3, FLOAT)