diff options
Diffstat (limited to 'arch/arm/plat-s5p/include/plat/irqs.h')
| -rw-r--r-- | arch/arm/plat-s5p/include/plat/irqs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h index 3fb3a3a..23603c7 100644 --- a/arch/arm/plat-s5p/include/plat/irqs.h +++ b/arch/arm/plat-s5p/include/plat/irqs.h @@ -94,4 +94,13 @@ ((irq) - S5P_EINT_BASE1) : \ ((irq) + 16 - S5P_EINT_BASE2)) +/* Typically only a few gpio chips require gpio interrupt support. + To avoid memory waste irq descriptors are allocated only for + S5P_GPIOINT_GROUP_COUNT chips, each with total number of + S5P_GPIOINT_GROUP_SIZE pins/irqs. Each GPIOINT group can be assiged + to any gpio chip with the s5p_register_gpio_interrupt() function */ +#define S5P_GPIOINT_GROUP_COUNT 4 +#define S5P_GPIOINT_GROUP_SIZE 8 +#define S5P_GPIOINT_COUNT (S5P_GPIOINT_GROUP_COUNT * S5P_GPIOINT_GROUP_SIZE) + #endif /* __ASM_PLAT_S5P_IRQS_H */ |