[Patch v1] iommu: arm-smmu: Use arm-smmu-nvidia impl for Tegra234

From: Ashish Mhetre
Date: Tue Mar 29 2022 - 00:45:10 EST


Tegra234 has 2 pairs of ARM MMU-500 instances. Each pair is used
together and should be programmed identically.
Add compatible string of Tegra234 iommu nodes in arm_smmu_impl_init()
so that arm-smmu-nvidia implementation will be used for programming
these SMMU instances.

Signed-off-by: Ashish Mhetre <amhetre@xxxxxxxxxx>
---
drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
index 2c25cce38060..658f3cc83278 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
@@ -211,7 +211,8 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu)
if (of_property_read_bool(np, "calxeda,smmu-secure-config-access"))
smmu->impl = &calxeda_impl;

- if (of_device_is_compatible(np, "nvidia,tegra194-smmu") ||
+ if (of_device_is_compatible(np, "nvidia,tegra234-smmu") ||
+ of_device_is_compatible(np, "nvidia,tegra194-smmu") ||
of_device_is_compatible(np, "nvidia,tegra186-smmu"))
return nvidia_smmu_impl_init(smmu);

--
2.17.1