diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-davinci.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 17df6db5dca7..cb947a1266ae 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -31,6 +31,8 @@ struct davinci_gpio_regs { u32 intstat; }; +#define BINTEN 0x8 /* GPIO Interrupt Per-Bank Enable Register */ + #define chip2controller(chip) \ container_of(chip, struct davinci_gpio_controller, chip) @@ -304,7 +306,8 @@ static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset) { struct davinci_soc_info *soc_info = &davinci_soc_info; - /* NOTE: we assume for now that only irqs in the first gpio_chip + /* + * NOTE: we assume for now that only irqs in the first gpio_chip * can provide direct-mapped IRQs to AINTC (up to 32 GPIOs). */ if (offset < soc_info->gpio_unbanked) @@ -368,7 +371,8 @@ static int __init davinci_gpio_irq_setup(void) } clk_prepare_enable(clk); - /* Arrange gpio_to_irq() support, handling either direct IRQs or + /* + * Arrange gpio_to_irq() support, handling either direct IRQs or * banked IRQs. Having GPIOs in the first GPIO bank use direct * IRQs, while the others use banked IRQs, would need some setup * tweaks to recognize hardware which can do that. @@ -450,10 +454,11 @@ static int __init davinci_gpio_irq_setup(void) } done: - /* BINTEN -- per-bank interrupt enable. genirq would also let these + /* + * BINTEN -- per-bank interrupt enable. genirq would also let these * bits be set/cleared dynamically. */ - __raw_writel(binten, gpio_base + 0x08); + __raw_writel(binten, gpio_base + BINTEN); printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0)); |