1 files changed, 13 insertions, 6 deletions

diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index 1f2298759077..33626de8cbf6 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -38,6 +38,7 @@ struct gpio_desc {
         unsigned        valid           : 1;
         unsigned        can_wakeup      : 1;
         unsigned        keypad_gpio     : 1;
+        unsigned        dir_inverted    : 1;
         unsigned int    mask; /* bit mask in PWER or PKWR */
         unsigned int    mux_mask; /* bit mask of muxed gpio bits, 0 if no mux */
         unsigned long   config;
@@ -54,7 +55,7 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
         int uorl = !!(gpio & 0x10); /* GAFRx_U or GAFRx_L ? */
         int shft = (gpio & 0xf) << 1;
         int fn = MFP_AF(c);
-        int dir = c & MFP_DIR_OUT;
+        int is_out = (c & MFP_DIR_OUT) ? 1 : 0;
 
         if (fn > 3)
                 return -EINVAL;
@@ -68,7 +69,7 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
         else
                 GAFR_U(bank) = gafr;
 
-        if (dir == MFP_DIR_OUT)
+        if (is_out ^ gpio_desc[gpio].dir_inverted)
                 GPDR(gpio) |= mask;
         else
                 GPDR(gpio) &= ~mask;
@@ -77,11 +78,11 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
         switch (c & MFP_LPM_STATE_MASK) {
         case MFP_LPM_DRIVE_HIGH:
                 PGSR(bank) |= mask;
-                dir = MFP_DIR_OUT;
+                is_out = 1;
                 break;
         case MFP_LPM_DRIVE_LOW:
                 PGSR(bank) &= ~mask;
-                dir = MFP_DIR_OUT;
+                is_out = 1;
                 break;
         case MFP_LPM_DEFAULT:
                 break;
@@ -92,7 +93,7 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
                 break;
         }
 
-        if (dir == MFP_DIR_OUT)
+        if (is_out ^ gpio_desc[gpio].dir_inverted)
                 gpdr_lpm[bank] |= mask;
         else
                 gpdr_lpm[bank] &= ~mask;
@@ -106,7 +107,7 @@ static int __mfp_config_gpio(unsigned gpio, unsigned long c)
                 return -EINVAL;
         }
 
-        if ((c & MFP_LPM_CAN_WAKEUP) && (dir == MFP_DIR_OUT)) {
+        if ((c & MFP_LPM_CAN_WAKEUP) && is_out) {
                 pr_warning("%s: output GPIO%d unable to wakeup\n",
                                 __func__, gpio);
                 return -EINVAL;
@@ -221,6 +222,12 @@ static void __init pxa25x_mfp_init(void)
                 gpio_desc[i].can_wakeup = 1;
                 gpio_desc[i].mask = GPIO_bit(i);
         }
+
+        /* PXA26x has additional 4 GPIOs (86/87/88/89) which has the
+         * direction bit inverted in GPDR2. See PXA26x DM 4.1.1.
+         */
+        for (i = 86; i <= pxa_last_gpio; i++)
+                gpio_desc[i].dir_inverted = 1;
 }
 #else
 static inline void pxa25x_mfp_init(void) {}