[PATCH v8 4/9] of/iommu: Support dma-can-stall property

[Zhangfei Gao]

On 2020/12/14 下午8:51, Jean-Philippe Brucker wrote:
> On Thu, Nov 26, 2020 at 06:09:26PM +0000, Robin Murphy wrote:
>> On 2020-11-12 12:55, Jean-Philippe Brucker wrote:
>>> Copy the dma-can-stall property into the fwspec structure.
>> Can't we just handle this as a regular device property? It's not part of the
>> actual IOMMU specifier, it doesn't need to be translated in any way, and
>> AFAICS it's used a grand total of once, in a slow path. Simply treating it
>> as the per-device property that it is should require zero additional code
>> for DT, and a simple device_add_properties() call for IORT.
>>
>> TBH that appears to be true of pasid-num-bits as well.
> Right I think that's better, thanks for the pointer. I'll take care of
> pasid-num-bits too. The Huawei quirk (fake PCIe supporting stall) is a
> little worse this way, but it should work.

Thanks Jean, I tested the following diff, it works with Huawei quirk.

Thanks