[ARM] pxa: allow MFP_LPM_INPUT to be explicitly specified

Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/mfp-pxa2xx.c

@@ -81,6 +81,7 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
 		PGSR(bank) &= ~mask;
 		is_out = 1;
 		break;
+	case MFP_LPM_INPUT:
 	case MFP_LPM_DEFAULT:
 		break;
 	default:

arch/arm/plat-pxa/mfp.c

@@ -110,6 +110,7 @@ static const unsigned long mfpr_lpm[] = {
 	MFPR_LPM_PULL_LOW,
 	MFPR_LPM_PULL_HIGH,
 	MFPR_LPM_FLOAT,
+	MFPR_LPM_INPUT,
 };
 
 /* mapping of MFP_PULL_* definitions to MFPR_PULL_* register bits */