arm_smmu_write_reg_sync
ret = arm_smmu_write_reg_sync(smmu, 0, ARM_SMMU_IRQ_CTRL,
ret = arm_smmu_write_reg_sync(smmu, irqen_flags,
ret = arm_smmu_write_reg_sync(smmu, 0, ARM_SMMU_CR0, ARM_SMMU_CR0ACK);
ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,
ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0,