diff options
| author | Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> | 2020-04-20 21:33:49 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-05-07 16:21:42 +0300 |
| commit | 64510ede36845500584485f3ad30dbcbf83091a6 (patch) | |
| tree | 2da9e769cce772ab9dbbed390c5876ac43212ff1 /drivers/iommu/arm-smmu-impl.c | |
| parent | 02782f3d60f197f02efd153b43ef64214dc00c01 (diff) | |
| download | linux-64510ede36845500584485f3ad30dbcbf83091a6.tar.xz | |
iommu: arm-smmu-impl: Convert to a generic reset implementation
Currently the QCOM specific smmu reset implementation is very
specific to SDM845 SoC and has a wait-for-safe logic which
may not be required for other SoCs. So move the SDM845 specific
logic to its specific reset function. Also add SC7180 SMMU
compatible for calling into QCOM specific implementation.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/d24a0278021bc0b2732636c5728efe55e7318a8b.1587407458.git.saiprakash.ranjan@codeaurora.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/arm-smmu-impl.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-impl.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/iommu/arm-smmu-impl.c b/drivers/iommu/arm-smmu-impl.c index 74d97a886e93..c75b9d957b70 100644 --- a/drivers/iommu/arm-smmu-impl.c +++ b/drivers/iommu/arm-smmu-impl.c @@ -150,6 +150,8 @@ static const struct arm_smmu_impl arm_mmu500_impl = { struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu) { + const struct device_node *np = smmu->dev->of_node; + /* * We will inevitably have to combine model-specific implementation * quirks with platform-specific integration quirks, but everything @@ -166,11 +168,11 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu) break; } - if (of_property_read_bool(smmu->dev->of_node, - "calxeda,smmu-secure-config-access")) + if (of_property_read_bool(np, "calxeda,smmu-secure-config-access")) smmu->impl = &calxeda_impl; - if (of_device_is_compatible(smmu->dev->of_node, "qcom,sdm845-smmu-500")) + if (of_device_is_compatible(np, "qcom,sdm845-smmu-500") || + of_device_is_compatible(np, "qcom,sc7180-smmu-500")) return qcom_smmu_impl_init(smmu); return smmu; |