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authorKonrad Dybcio <konrad.dybcio@linaro.org>2023-08-09 22:20:29 +0300
committerWill Deacon <will@kernel.org>2023-08-11 14:33:26 +0300
commitb606e2e8eded40cacb0a0f0cd60cb45420e9b555 (patch)
treebf2b3b07b9fef1f35937892a2bc5d83cbcc6bedf /Documentation/devicetree/bindings/iommu
parenta7a7c8c1a06a47ad87d9b10cec6a7cde4a041b23 (diff)
downloadlinux-b606e2e8eded40cacb0a0f0cd60cb45420e9b555.tar.xz
dt-bindings: arm-smmu: Fix MSM8998 clocks description
MSM8998 was abusingly referencing one of the internal bus clocks, that were recently dropped from Linux (because the original implementation did not make much sense), circumventing the interconnect framework. Fix it by dropping the bus-mm clock (which requires separating 8998 from similar entries) and keeping the rest as-is. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20230531-topic-8998_mmssclk-v3-6-ba1b1fd9ee75@linaro.org Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
-rw-r--r--Documentation/devicetree/bindings/iommu/arm,smmu.yaml41
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index 3a31a979709b..cf29ab10501c 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -270,6 +270,47 @@ allOf:
contains:
enum:
- qcom,msm8998-smmu-v2
+ then:
+ anyOf:
+ - properties:
+ clock-names:
+ items:
+ - const: bus
+ clocks:
+ items:
+ - description: bus clock required for downstream bus access and for
+ the smmu ptw
+ - properties:
+ clock-names:
+ items:
+ - const: iface
+ - const: mem
+ - const: mem_iface
+ clocks:
+ items:
+ - description: interface clock required to access smmu's registers
+ through the TCU's programming interface.
+ - description: bus clock required for memory access
+ - description: bus clock required for GPU memory access
+ - properties:
+ clock-names:
+ items:
+ - const: iface-mm
+ - const: iface-smmu
+ - const: bus-smmu
+ clocks:
+ items:
+ - description: interface clock required to access mnoc's registers
+ through the TCU's programming interface.
+ - description: interface clock required to access smmu's registers
+ through the TCU's programming interface.
+ - description: bus clock required for the smmu ptw
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
- qcom,sdm630-smmu-v2
- qcom,sm6375-smmu-v2
then: