Register the Shikra MDSS display subsystem in both the SMMU ACTLR client table (for TLB prefetch tuning) and the SMMU client match table.
Shikra MDSS uses qcom,shikra-mdss as its sole compatible string, so explicit entries are required — there is no fallback to qcom,qcm2290-mdss to fall back on. The prefetch settings mirror qcm2290-mdss (PREFETCH_SHALLOW | CPRE | CMTLB) as Shikra shares the same display hardware block. No entry is needed in qcom_smmu_impl_of_match: Shikra's apps_smmu carries qcom,smmu-500 as a fallback and is covered by the catch-all entry there. Signed-off-by: Nabige Aala <[email protected]> --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index e2c914fccd6f..3dfee947e2c9 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -45,6 +45,8 @@ static const struct of_device_id qcom_smmu_actlr_client_of_match[] = { .data = (const void *) (PREFETCH_DEFAULT | CMTLB) }, { .compatible = "qcom,qcm2290-mdss", .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, + { .compatible = "qcom,shikra-mdss", + .data = (const void *) (PREFETCH_SHALLOW | CPRE | CMTLB) }, { .compatible = "qcom,sa8775p-mdss", .data = (const void *) (PREFETCH_DEFAULT | CMTLB) }, { .compatible = "qcom,sc7280-mdss", @@ -410,6 +412,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { { .compatible = "qcom,mdp4" }, { .compatible = "qcom,mdss" }, { .compatible = "qcom,qcm2290-mdss" }, + { .compatible = "qcom,shikra-mdss" }, { .compatible = "qcom,sar2130p-mdss" }, { .compatible = "qcom,sc7180-mdss" }, { .compatible = "qcom,sc7180-mss-pil" }, -- 2.34.1
