diff options
Diffstat (limited to 'arch/mips/include/asm/i8259.h')
| -rw-r--r-- | arch/mips/include/asm/i8259.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/mips/include/asm/i8259.h b/arch/mips/include/asm/i8259.h index a7fbcd6ed13c..32229c77906a 100644 --- a/arch/mips/include/asm/i8259.h +++ b/arch/mips/include/asm/i8259.h @@ -37,12 +37,22 @@ extern raw_spinlock_t i8259A_lock; -extern int i8259A_irq_pending(unsigned int irq); extern void make_8259A_irq(unsigned int irq); extern void init_i8259_irqs(void); extern int i8259_of_init(struct device_node *node, struct device_node *parent); +/** + * i8159_set_poll() - Override the i8259 polling function + * @poll: pointer to platform-specific polling function + * + * Call this to override the generic i8259 polling function, which directly + * accesses i8259 registers, with a platform specific one which may be faster + * in cases where hardware provides a more optimal means of polling for an + * interrupt. + */ +extern void i8259_set_poll(int (*poll)(void)); + /* * Do the traditional i8259 interrupt polling thing. This is for the few * cases where no better interrupt acknowledge method is available and we |