ISYS_IRQ_EDGE_REG_IDX
state->edge = isys_irqc_reg_load(isys_irqc_id, ISYS_IRQ_EDGE_REG_IDX);
#define ISYS_IRQ_MASK_REG_IDX (ISYS_IRQ_EDGE_REG_IDX + 1)
#define ISYS_IRQ_STATUS_REG_IDX (ISYS_IRQ_EDGE_REG_IDX + 2)
#define ISYS_IRQ_CLEAR_REG_IDX (ISYS_IRQ_EDGE_REG_IDX + 3)
#define ISYS_IRQ_ENABLE_REG_IDX (ISYS_IRQ_EDGE_REG_IDX + 4)
#define ISYS_IRQ_LEVEL_NO_REG_IDX (ISYS_IRQ_EDGE_REG_IDX + 5)