Thread (23 messages) 23 messages, 7 authors, 2021-06-21
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Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 current

[PATCH v3 6/9] iommu/arm-smmu: Use Tegra implementation on Tegra186

From: Thierry Reding <hidden>
Date: 2021-06-03 16:50:16
Also in: linux-arm-kernel, linux-iommu
Subsystem: arm smmu drivers, iommu subsystem, the rest · Maintainers: Will Deacon, Joerg Roedel, Linus Torvalds

From: Thierry Reding <redacted>

Tegra186 requires the same SID override programming as Tegra194 in order
to seamlessly transition from the firmware framebuffer to the Linux
framebuffer, so the Tegra implementation needs to be used on Tegra186
devices as well.

Signed-off-by: Thierry Reding <redacted>
---
 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 136872e77195..9f465e146799 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,tegra194-smmu") ||
+	    of_device_is_compatible(np, "nvidia,tegra186-smmu"))
 		return nvidia_smmu_impl_init(smmu);
 
 	smmu = qcom_smmu_impl_init(smmu);
-- 
2.31.1
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