[PATCH v4 2/3] iommu/arm-smmu-v3: Detect Tegra264 erratum

[Ashish Mhetre]

On 7/9/2026 7:11 AM, Nicolin Chen wrote:
> On Tue, Jun 09, 2026 at 07:32:03AM +0000, Ashish Mhetre wrote:
>> @@ -5303,8 +5305,11 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev,
>>   	if (of_dma_is_coherent(dev->of_node))
>>   		smmu->features |= ARM_SMMU_FEAT_COHERENCY;
>>   
>> -	if (of_device_is_compatible(dev->of_node, "nvidia,tegra264-smmu"))
>> +	if (of_device_is_compatible(dev->of_node, "nvidia,tegra264-smmu")) {
>>   		tegra_cmdqv_dt_probe(dev->of_node, smmu);
>> +		smmu->options |= ARM_SMMU_OPT_REPEAT_TLBI_CFGI;
>> +		static_branch_enable(&arm_smmu_erratum_repeat_tlbi_cfgi_key);
>> +	}
> This would be nicer to be the last part of the series. Since we
> need a respin, I would change the order a bit:
>
> patch-1 factor a helper for force_sync
> patch-2 define a static key and its WAR functions
> patch-3 detect per compatible string and set the key
>
> Nicolin

Ack, I will send v5 with above ordering.

Thanks,
Ashish Mhetre