1 files changed, 13 insertions, 39 deletions

diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index a2a11717bf66..5448230c0e95 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -326,6 +326,7 @@ static void bfin_demux_error_irq(unsigned int int_err_irq,
 static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)];
 static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)];
 
+extern void bfin_gpio_irq_prepare(unsigned gpio);
 
 static void bfin_gpio_ack_irq(unsigned int irq)
 {
@@ -364,35 +365,25 @@ static void bfin_gpio_unmask_irq(unsigned int irq)
 
 static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 {
-        unsigned int ret;
         u16 gpionr = irq - IRQ_PF0;
-        char buf[8];
 
-        if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-                snprintf(buf, sizeof buf, "IRQ %d", irq);
-                ret = gpio_request(gpionr, buf);
-                if (ret)
-                        return ret;
-        }
+        if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)))
+                bfin_gpio_irq_prepare(gpionr);
 
         gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
         bfin_gpio_unmask_irq(irq);
 
-        return ret;
+        return 0;
 }
 
 static void bfin_gpio_irq_shutdown(unsigned int irq)
 {
         bfin_gpio_mask_irq(irq);
-        gpio_free(irq - IRQ_PF0);
         gpio_enabled[gpio_bank(irq - IRQ_PF0)] &= ~gpio_bit(irq - IRQ_PF0);
 }
 
 static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 {
-
-        unsigned int ret;
-        char buf[8];
         u16 gpionr = irq - IRQ_PF0;
 
         if (type == IRQ_TYPE_PROBE) {
@@ -404,12 +395,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 
         if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
                     IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-                if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-                        snprintf(buf, sizeof buf, "IRQ %d", irq);
-                        ret = gpio_request(gpionr, buf);
-                        if (ret)
-                                return ret;
-                }
+                if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)))
+                        bfin_gpio_irq_prepare(gpionr);
 
                 gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
         } else {
@@ -595,6 +582,8 @@ static struct pin_int_t *pint[NR_PINT_SYS_IRQS] = {
         (struct pin_int_t *)PINT3_MASK_SET,
 };
 
+extern void bfin_gpio_irq_prepare(unsigned gpio);
+
 inline unsigned short get_irq_base(u8 bank, u8 bmap)
 {
 
@@ -697,8 +686,6 @@ static void bfin_gpio_unmask_irq(unsigned int irq)
 
 static unsigned int bfin_gpio_irq_startup(unsigned int irq)
 {
-        unsigned int ret;
-        char buf[8];
         u16 gpionr = irq_to_gpio(irq);
         u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
 
@@ -709,17 +696,13 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
                 return -ENODEV;
         }
 
-        if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-                snprintf(buf, sizeof buf, "IRQ %d", irq);
-                ret = gpio_request(gpionr, buf);
-                if (ret)
-                        return ret;
-        }
+        if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)))
+                bfin_gpio_irq_prepare(gpionr);
 
         gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
         bfin_gpio_unmask_irq(irq);
 
-        return ret;
+        return 0;
 }
 
 static void bfin_gpio_irq_shutdown(unsigned int irq)
@@ -727,15 +710,12 @@ static void bfin_gpio_irq_shutdown(unsigned int irq)
         u16 gpionr = irq_to_gpio(irq);
 
         bfin_gpio_mask_irq(irq);
-        gpio_free(gpionr);
         gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
 }
 
 static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 {
 
-        unsigned int ret;
-        char buf[8];
         u16 gpionr = irq_to_gpio(irq);
         u8 pint_val = irq2pint_lut[irq - SYS_IRQS];
         u32 pintbit = PINT_BIT(pint_val);
@@ -753,12 +733,8 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
 
         if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
                     IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-                if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-                        snprintf(buf, sizeof buf, "IRQ %d", irq);
-                        ret = gpio_request(gpionr, buf);
-                        if (ret)
-                                return ret;
-                }
+                if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)))
+                        bfin_gpio_irq_prepare(gpionr);
 
                 gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
         } else {
@@ -766,8 +742,6 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type)
                 return 0;
         }
 
-        gpio_direction_input(gpionr);
-
         if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
                 pint[bank]->invert_set = pintbit;       /* low or falling edge denoted by one */
         else