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gpio: pl061: use chained_irq_* functions in irq handler 

Use chained_irq_enter/exit helper functions instead of direct pointer
accesses. This is needed for generic irq chip conversion.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.ml.walleij@gmail.com>
This commit is contained in:
Rob Herring 2011-12-09 14:12:53 -06:00
parent 5f0a6e2d50
commit dece904d74
1 changed files with 4 additions and 2 deletions
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6
drivers/gpio/gpio-pl061.c
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@ -23,6 +23,7 @@
#include <linux/amba/bus.h>
#include <linux/amba/pl061.h>
#include <linux/slab.h>
#include <asm/mach/irq.h>
#define GPIODIR 0x400
#define GPIOIS 0x404
@ -211,8 +212,9 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
struct list_head *chip_list = irq_get_handler_data(irq);
struct list_head *ptr;
struct pl061_gpio *chip;
struct irq_chip *irqchip = irq_desc_get_chip(desc);
desc->irq_data.chip->irq_ack(&desc->irq_data);
chained_irq_enter(irqchip, desc);
list_for_each(ptr, chip_list) {
unsigned long pending;
int offset;
@ -227,7 +229,7 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
for_each_set_bit(offset, &pending, PL061_GPIO_NR)
generic_handle_irq(pl061_to_irq(&chip->gc, offset));
}
desc->irq_data.chip->irq_unmask(&desc->irq_data);
chained_irq_exit(irqchip, desc);
}
static int pl061_probe(struct amba_device *dev, const struct amba_id *id)