37 lines
1.1 KiB
Plaintext
37 lines
1.1 KiB
Plaintext
* Qualcomm MSM Camera SMMU
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[Root level node]
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The complete set of context banks for camera are encapsulated under this
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root node. Each second level node encapsulates the information related to
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the corresponding context bank. During the kernel initialization all
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the devices are probed recursively and a device pointer is created for
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each context bank keeping track of the virtual address mapping information.
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Required properties:
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- compatible :
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- "qcom,msm-cam-smmu"
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[Second level nodes]
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Required properties:
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- compatible : one of:
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- "qcom,msm-cam-smmu-cb"
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- "qcom,qsmmu-cam-cb"
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- iommus : Handle parsed by smmu driver. Number of entries will vary
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across targets.
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- label - string describing iommu domain usage.
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Optional properties:
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- qcom,scratch-buf-support : Enables iommu scratch buffer support in
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that context bank.
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Example:
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qcom,cam_smmu@0 {
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compatible = "qcom,msm-cam-smmu";
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msm_cam_smmu_cb1: msm_cam_smmu_cb1 {
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compatible = "qcom,msm-cam-smmu-cb";
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iommus = <&vfe_iommu 0>;
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label = "vfe";
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qcom,scratch-buf-support;
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}
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}
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