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[ARM] pxa: cleanup the coding style of pxa_gpio_set_type() 

by

1. wrapping long lines and making comments tidy

2. using IRQ_TYPE_* instead of migration macros __IRQT_*

3. introduce a pr_debug() for the commented printk(KERN_DEBUG ...)
   stuff

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
eric miao 2008-03-04 11:18:48 +08:00 committed by Russell King
parent a7bf4dbaba
commit dfa1067996
1 changed files with 20 additions and 22 deletions
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42
arch/arm/mach-pxa/irq.c
View File

@ -121,39 +121,37 @@ static int pxa_gpio_irq_type(unsigned int irq, unsigned int type)
gpio = IRQ_TO_GPIO(irq);
idx = gpio >> 5;
if (type == IRQT_PROBE) {
/* Don't mess with enabled GPIOs using preconfigured edges or
GPIOs set to alternate function or to output during probe */
if ((GPIO_IRQ_rising_edge[idx] | GPIO_IRQ_falling_edge[idx] | GPDR(gpio)) &
GPIO_bit(gpio))
if (type == IRQ_TYPE_PROBE) {
/* Don't mess with enabled GPIOs using preconfigured edges or
* GPIOs set to alternate function or to output during probe
*/
if ((GPIO_IRQ_rising_edge[idx] |
GPIO_IRQ_falling_edge[idx] |
GPDR(gpio)) & GPIO_bit(gpio))
return 0;
if (GAFR(gpio) & (0x3 << (((gpio) & 0xf)*2)))
return 0;
type = __IRQT_RISEDGE | __IRQT_FALEDGE;
type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
}
/* printk(KERN_DEBUG "IRQ%d (GPIO%d): ", irq, gpio); */
pxa_gpio_mode(gpio | GPIO_IN);
if (type & __IRQT_RISEDGE) {
/* printk("rising "); */
__set_bit (gpio, GPIO_IRQ_rising_edge);
} else {
__clear_bit (gpio, GPIO_IRQ_rising_edge);
}
if (type & IRQ_TYPE_EDGE_RISING)
__set_bit(gpio, GPIO_IRQ_rising_edge);
else
__clear_bit(gpio, GPIO_IRQ_rising_edge);
if (type & __IRQT_FALEDGE) {
/* printk("falling "); */
__set_bit (gpio, GPIO_IRQ_falling_edge);
} else {
__clear_bit (gpio, GPIO_IRQ_falling_edge);
}
/* printk("edges\n"); */
if (type & IRQ_TYPE_EDGE_FALLING)
__set_bit(gpio, GPIO_IRQ_falling_edge);
else
__clear_bit(gpio, GPIO_IRQ_falling_edge);
GRER(gpio) = GPIO_IRQ_rising_edge[idx] & GPIO_IRQ_mask[idx];
GFER(gpio) = GPIO_IRQ_falling_edge[idx] & GPIO_IRQ_mask[idx];
pr_debug("%s: IRQ%d (GPIO%d) - edge%s%s\n", __func__, irq, gpio,
((type & IRQ_TYPE_EDGE_RISING) ? " rising" : ""),
((type & IRQ_TYPE_EDGE_FALLING) ? " falling" : ""));
return 0;
}