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MIPS: JZ4740: GPIO: Use shared irq chip for all gpios 

Currently there is one irq_chip per gpio_chip with the only difference
being the name. Since the information whether the irq belong to GPIO
bank A, B, C or D is not that important rewrite the code to simply use
a single irq_chip for all gpio_chips.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2182/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Lars-Peter Clausen 2011-03-23 21:08:54 +00:00 committed by Ralf Baechle
parent 42b64f388c
commit cd11d14de9
1 changed files with 13 additions and 12 deletions
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25
arch/mips/jz4740/gpio.c
View File

@ -86,7 +86,6 @@ struct jz_gpio_chip {
spinlock_t lock;
struct gpio_chip gpio_chip;
struct irq_chip irq_chip;
struct sys_device sysdev;
};
@ -435,6 +434,17 @@ static int jz_gpio_irq_set_wake(struct irq_data *data, unsigned int on)
return 0;
}
static struct irq_chip jz_gpio_irq_chip = {
.name = "GPIO",
.irq_mask = jz_gpio_irq_mask,
.irq_unmask = jz_gpio_irq_unmask,
.irq_ack = jz_gpio_irq_ack,
.irq_startup = jz_gpio_irq_startup,
.irq_shutdown = jz_gpio_irq_shutdown,
.irq_set_type = jz_gpio_irq_set_type,
.irq_set_wake = jz_gpio_irq_set_wake,
};
/*
* This lock class tells lockdep that GPIO irqs are in a different
* category than their parents, so it won't report false recursion.
@ -453,16 +463,6 @@ static struct lock_class_key gpio_lock_class;
.base = JZ4740_GPIO_BASE_ ## _bank, \
.ngpio = JZ4740_GPIO_NUM_ ## _bank, \
}, \
.irq_chip = { \
.name = "GPIO Bank " # _bank, \
.irq_mask = jz_gpio_irq_mask, \
.irq_unmask = jz_gpio_irq_unmask, \
.irq_ack = jz_gpio_irq_ack, \
.irq_startup = jz_gpio_irq_startup, \
.irq_shutdown = jz_gpio_irq_shutdown, \
.irq_set_type = jz_gpio_irq_set_type, \
.irq_set_wake = jz_gpio_irq_set_wake, \
}, \
}
static struct jz_gpio_chip jz4740_gpio_chips[] = {
@ -529,7 +529,8 @@ static int jz4740_gpio_chip_init(struct jz_gpio_chip *chip, unsigned int id)
for (irq = chip->irq_base; irq < chip->irq_base + chip->gpio_chip.ngpio; ++irq) {
lockdep_set_class(&irq_desc[irq].lock, &gpio_lock_class);
set_irq_chip_data(irq, chip);
set_irq_chip_and_handler(irq, &chip->irq_chip, handle_level_irq);
set_irq_chip_and_handler(irq, &jz_gpio_irq_chip,
handle_level_irq);
}
return 0;