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 <[email protected]>
---
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
On Tue, Mar 29, 2022 at 10:14:36AM +0530, Ashish Mhetre wrote:
> 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 <[email protected]>
> ---
> drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
I already sent out this patch a couple of months ago, though I realize
that it still hasn't been applied:
http://patchwork.ozlabs.org/project/linux-tegra/list/?series=276030
Joerg, any chance we can still get that series into v5.18? I've already
applied patch 4 given that Rob had acked the DT bindings changes. I know
it's a bit late, but this has been on the list for a couple of months
and has Rob's Reviewed-by on the bindings and Will's Acked-by on the ARM
SMMU driver patches.
If it's too late for v5.18, is there anything else you're waiting for so
that this can go into v5.19?
Thanks,
Thierry