diff options
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/driver.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index c667ad0c099d..f8245d67f070 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -202,11 +202,17 @@ struct gpio_irq_chip { bool threaded; /** - * @need_valid_mask: - * - * If set core allocates @valid_mask with all bits set to one. + * @init_valid_mask: optional routine to initialize @valid_mask, to be + * used if not all GPIO lines are valid interrupts. Sometimes some + * lines just cannot fire interrupts, and this routine, when defined, + * is passed a bitmap in "valid_mask" and it will have ngpios + * bits from 0..(ngpios-1) set to "1" as in valid. The callback can + * then directly set some bits to "0" if they cannot be used for + * interrupts. */ - bool need_valid_mask; + void (*init_valid_mask)(struct gpio_chip *chip, + unsigned long *valid_mask, + unsigned int ngpios); /** * @valid_mask: |