[PATCH 7/9] iommu/arm-smmu: Use Tegra implementation on Tegra186

Robin Murphy robin.murphy at arm.com
Thu Mar 25 14:27:47 GMT 2021


On 2021-03-25 13:03, Thierry Reding wrote:
> From: Thierry Reding <treding at nvidia.com>
> 
> 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 <treding at nvidia.com>
> ---
>   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"))

Binding update?

Robin.

>   		return nvidia_smmu_impl_init(smmu);
>   
>   	smmu = qcom_smmu_impl_init(smmu);
> 



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