On 15/10/2024 10:15, Qingqing Zhou wrote: > Enable APPS SMMU function on QCS615 platform. APPS SMMU is required > for address translation in devices including Ethernet/UFS/USB and > so on. > > Add the SCM node for SMMU probing normally. SMMU driver probe will > check qcom_scm ready or not, without SCM node, SMMU driver probe will > defer. > The dmesg log without SCM node: > platform 15000000.iommu: deferred probe pending: arm-smmu: qcom_scm not ready > > With the SCM node, SMMU can probe normally, but SCM driver still fails > to probe because of one SCM bug: > qcom_scm firmware:scm: error (____ptrval____): Failed to enable the TrustZone memory allocator > qcom_scm firmware:scm: probe with driver qcom_scm failed with error 4 > The above SCM bug is fixed by: > https://lore.kernel.org/all/20241005140150.4109700-2-quic_kuldsing@xxxxxxxxxxx/ > But above patch doesn't impact building of current patch series, this patch > series can build successfully without above patch. > > Dependency: > https://lore.kernel.org/all/20240926-add_initial_support_for_qcs615-v3-0-e37617e91c62@xxxxxxxxxxx/ > > Changes in v2: > - Address the comments on bindings from Krzysztof. Which comments? Be specific what changed. Best regards, Krzysztof
