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Merge tag 'arm-smmu-updates' of git://git./linux/kernel/git/will/linux into arm/smmu
Arm SMMU updates for 5.15
- SMMUv3
* Minor optimisation to avoid zeroing struct members on CMD submission
* Increased use of batched commands to reduce submission latency
* Refactoring in preparation for ECMDQ support
- SMMUv2
* Fix races when probing devices with identical StreamIDs
* Optimise walk cache flushing for Qualcomm implementations
* Allow deep sleep states for some Qualcomm SoCs with shared clocks