[PATCH 1/2] iommu/arm-smmu-qcom: Use FIELD_MODIFY()

[Hans Zhang]

Use FIELD_MODIFY() to remove open-coded bit manipulation.
No functional change intended.

Signed-off-by: Hans Zhang <18255117159 at 163.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.c
index 65e0ef6539fe..99469c4ebac2 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom-debug.c
@@ -208,8 +208,7 @@ static phys_addr_t qcom_tbu_trigger_atos(struct arm_smmu_domain *smmu_domain,
 
 	/* Set address and stream-id */
 	val = readq_relaxed(tbu->base + DEBUG_SID_HALT_REG);
-	val &= ~DEBUG_SID_HALT_SID;
-	val |= FIELD_PREP(DEBUG_SID_HALT_SID, sid);
+	FIELD_MODIFY(DEBUG_SID_HALT_SID, &val, sid);
 	writeq_relaxed(val, tbu->base + DEBUG_SID_HALT_REG);
 	writeq_relaxed(iova, tbu->base + DEBUG_VA_ADDR_REG);
 	val = FIELD_PREP(DEBUG_AXUSER_CDMID, DEBUG_AXUSER_CDMID_VAL);
-- 
2.34.1