DAC960_PG_ODB_HWMBOX_ACK_IRQ
writel(DAC960_PG_ODB_HWMBOX_ACK_IRQ, base + DAC960_PG_ODB_OFFSET);
writel(DAC960_PG_ODB_HWMBOX_ACK_IRQ | DAC960_PG_ODB_MMBOX_ACK_IRQ,