Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
---
arch/blackfin/mach-common/ints-priority-sc.c | 77 +++++++++++--------------
1 files changed, 34 insertions(+), 43 deletions(-)
diff --git a/arch/blackfin/mach-common/ints-priority-sc.c
b/arch/blackfin/mach-common/ints-priority-sc.c
index c30726b..34b6228 100644
--- a/arch/blackfin/mach-common/ints-priority-sc.c
+++ b/arch/blackfin/mach-common/ints-priority-sc.c
@@ -329,11 +329,9 @@ static unsigned int bfin_gpio_irq_startup(unsigned int irq)
u16 gpionr = irq - IRQ_PF0;
if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) {
-
ret = gpio_request(gpionr, NULL);
- if(ret)
+ if (ret)
return ret;
-
}
gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
@@ -355,55 +353,49 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned
int type)
unsigned int ret;
u16 gpionr = irq - IRQ_PF0;
+ if (type == IRQ_TYPE_PROBE) {
+ /* only probe unenabled GPIO interrupt lines */
+ if (gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))
+ return 0;
+ type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
+ }
- if (type == IRQ_TYPE_PROBE) {
- /* only probe unenabled GPIO interrupt lines */
- if (gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))
- return 0;
- type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
-
- }
-
- if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
- IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-
+ 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))) {
-
ret = gpio_request(gpionr, NULL);
- if(ret)
+ if (ret)
return ret;
-
- }
-
- gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
- } else {
- gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
- return 0;
}
+ gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr);
+ } else {
+ gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
+ return 0;
+ }
- set_gpio_dir(gpionr, 0);
- set_gpio_inen(gpionr, 1);
-
+ set_gpio_dir(gpionr, 0);
+ set_gpio_inen(gpionr, 1);
- if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
- gpio_edge_triggered[gpio_bank(gpionr)] |=
gpio_bit(gpionr);
- set_gpio_edge(gpionr, 1);
- } else {
- set_gpio_edge(gpionr, 0);
- gpio_edge_triggered[gpio_bank(gpionr)] &=
~gpio_bit(gpionr);
- }
+ if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
+ gpio_edge_triggered[gpio_bank(gpionr)] |= gpio_bit(gpionr);
+ set_gpio_edge(gpionr, 1);
+ } else {
+ set_gpio_edge(gpionr, 0);
+ gpio_edge_triggered[gpio_bank(gpionr)] &= ~gpio_bit(gpionr);
+ }
- if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
- == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
- set_gpio_both(gpionr, 1);
- else
- set_gpio_both(gpionr, 0);
+ if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+ == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+ set_gpio_both(gpionr, 1);
+ else
+ set_gpio_both(gpionr, 0);
- if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
- set_gpio_polar(gpionr, 1); /* low or falling edge
denoted by one */
- else
- set_gpio_polar(gpionr, 0); /* high or rising edge
denoted by zero */
+ if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
+ set_gpio_polar(gpionr, 1); /* low or falling edge denoted
by one */
+ else
+ set_gpio_polar(gpionr, 0); /* high or rising edge denoted
by zero */
SSYNC();
@@ -416,7 +408,6 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned
int type)
}
-
static struct irq_chip bfin_gpio_irqchip = {
.ack = bfin_gpio_ack_irq,
.mask = bfin_gpio_mask_irq,
--
1.5.1.2
-
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