Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=58781016c3637caf314ca7f579ce0acd1b0378dc
Commit: 58781016c3637caf314ca7f579ce0acd1b0378dc
Parent: 56a2564185db752d83bbc78be9b1e257bf103444
Author: David Brownell <[EMAIL PROTECTED]>
AuthorDate: Wed Dec 6 17:14:10 2006 -0800
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Sat May 5 10:57:01 2007 +0100
ARM: OMAP: speed up gpio irq handling
Speedup and shrink GPIO irq handling code, by using a pointer
that's available in the irq_chip structure instead of calling
the get_gpio_bank() function. On OMAP1 this saves 44 words,
most of which were in IRQ critical path methods. Hey, every
few instructions help.
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Tony Lindgren <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
arch/arm/plat-omap/gpio.c | 17 +++++++++--------
1 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 1da7a5d..14a3f71 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -584,7 +584,7 @@ static int gpio_irq_type(unsigned irq, unsigned type)
&& (type & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH)))
return -EINVAL;
- bank = get_gpio_bank(gpio);
+ bank = get_irq_chip_data(irq);
spin_lock(&bank->lock);
retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type);
if (retval == 0) {
@@ -823,7 +823,7 @@ static int gpio_wake_enable(unsigned int irq, unsigned int
enable)
if (check_gpio(gpio) < 0)
return -ENODEV;
- bank = get_gpio_bank(gpio);
+ bank = get_irq_chip_data(irq);
retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable);
return retval;
@@ -1038,7 +1038,7 @@ static void gpio_irq_handler(unsigned int irq, struct
irq_desc *desc)
static void gpio_irq_shutdown(unsigned int irq)
{
unsigned int gpio = irq - IH_GPIO_BASE;
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_reset_gpio(bank, gpio);
}
@@ -1046,7 +1046,7 @@ static void gpio_irq_shutdown(unsigned int irq)
static void gpio_ack_irq(unsigned int irq)
{
unsigned int gpio = irq - IH_GPIO_BASE;
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_clear_gpio_irqstatus(bank, gpio);
}
@@ -1054,7 +1054,7 @@ static void gpio_ack_irq(unsigned int irq)
static void gpio_mask_irq(unsigned int irq)
{
unsigned int gpio = irq - IH_GPIO_BASE;
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_set_gpio_irqenable(bank, gpio, 0);
}
@@ -1063,7 +1063,7 @@ static void gpio_unmask_irq(unsigned int irq)
{
unsigned int gpio = irq - IH_GPIO_BASE;
unsigned int gpio_idx = get_gpio_index(gpio);
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_set_gpio_irqenable(bank, gpio_idx, 1);
}
@@ -1092,7 +1092,7 @@ static void mpuio_ack_irq(unsigned int irq)
static void mpuio_mask_irq(unsigned int irq)
{
unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE);
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_set_gpio_irqenable(bank, gpio, 0);
}
@@ -1100,7 +1100,7 @@ static void mpuio_mask_irq(unsigned int irq)
static void mpuio_unmask_irq(unsigned int irq)
{
unsigned int gpio = OMAP_MPUIO(irq - IH_MPUIO_BASE);
- struct gpio_bank *bank = get_gpio_bank(gpio);
+ struct gpio_bank *bank = get_irq_chip_data(irq);
_set_gpio_irqenable(bank, gpio, 1);
}
@@ -1275,6 +1275,7 @@ static int __init _omap_gpio_init(void)
#endif
for (j = bank->virtual_irq_start;
j < bank->virtual_irq_start + gpio_count; j++) {
+ set_irq_chip_data(j, bank);
if (bank_is_mpuio(bank))
set_irq_chip(j, &mpuio_irq_chip);
else
-
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