| Message ID | 20230818100128.112491-3-guomengqi3@huawei.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | Add dma controller for hisi ascend310/910 | expand |
On Fri, 18 Aug 2023 18:01:28 +0800, Guo Mengqi wrote: > Add device-tree binding documentation for the Hisi Ascend sdma > controller. > > Signed-off-by: Guo Mengqi <guomengqi3@huawei.com> > --- > .../bindings/dma/hisi,ascend-sdma.yaml | 75 +++++++++++++++++++ > 1 file changed, 75 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/hisi,ascend-sdma.yaml > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: Documentation/devicetree/bindings/dma/hisi,ascend-sdma.example.dtb: /example-0/dma-controller@880e0000: failed to match any schema with compatible: ['hisilicon,ascend310-sdma'] doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230818100128.112491-3-guomengqi3@huawei.com The base for the series is generally the latest rc1. A different dependency should be noted in *this* patch. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit after running the above command yourself. Note that DT_SCHEMA_FILES can be set to your schema file to speed up checking your schema. However, it must be unset to test all examples with your schema.
diff --git a/Documentation/devicetree/bindings/dma/hisi,ascend-sdma.yaml b/Documentation/devicetree/bindings/dma/hisi,ascend-sdma.yaml new file mode 100644 index 000000000000..eab8192fac67 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/hisi,ascend-sdma.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/hisi,ascend-sdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: HISI Ascend System DMA (SDMA) controller + +description: | + The Ascend SDMA controller is used for transferring data + in system memory. It utilizes IOMMU SVA feature and accepts + virtual address from user process. + +maintainers: + - Guo Mengqi <guomengqi3@huawei.com> + +allOf: + - $ref: dma-controller.yaml# + +properties: + compatible: + enum: + - hisi,ascend310-sdma + - hisi,ascend910-sdma + + reg: + maxItems: 1 + + '#dma-cells': + const: 1 + description: + Clients specify a single cell with channel number. + + hisi,ascend-sdma-channel-map: + description: | + bitmap, each bit stands for a channel that is allowed to + use by this system. Maximum 64 bits. + $ref: /schemas/types.yaml#/definitions/uint64 + + iommus: + maxItems: 1 + + pasid-num-bits: + description: | + sdma utilizes iommu sva feature to transfer user space data. + It acts as a basic dma controller if not bound to user space. + const: 0x10 + + dma-coherent: true + + dma-can-stall: true + +required: + - compatible + - reg + - hisi,ascend-sdma-channel-map + - '#dma-cells' + - iommus + +additionalProperties: false + +examples: + - | + dma-controller@880e0000 { + compatible = "hisilicon,ascend310-sdma"; + reg = <0x880e0000 0x10000>; + hisi,ascend-sdma-channel-map = <0x00000000 0x0000ff00>; + iommus = <&smmu 0x7f46>; + pasid-num-bits = <0x10>; + dma-coherent; + dma-can-stall; + #dma-cells = <1>; + }; + +...
Add device-tree binding documentation for the Hisi Ascend sdma controller. Signed-off-by: Guo Mengqi <guomengqi3@huawei.com> --- .../bindings/dma/hisi,ascend-sdma.yaml | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/hisi,ascend-sdma.yaml