Convert the AXI DMAC bindings from .txt to .yaml. Signed-off-by: David Lechner <dlechner@xxxxxxxxxxxx> --- For the maintainer, Lars is the original author, but isn't really active with ADI anymore, so I have added Nuno instead since he is the most active ADI representative currently and is knowledgeable about this hardware. Also, the rob-bot is likely to complain. Locally, I am getting the following warning from dt_bindings_check: Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml: properties:adi,channels:type: 'boolean' was expected hint: A vendor boolean property can use "type: boolean" from schema $id: http://devicetree.org/meta-schemas/vendor-props.yaml# DTC [C] Documentation/devicetree/bindings/dma/adi,axi-dmac.example.dtb I think this is telling me that object nodes should not have a vendor prefix. However, since this is an existing bindings, we can't change that. --- .../devicetree/bindings/dma/adi,axi-dmac.txt | 61 --------- .../devicetree/bindings/dma/adi,axi-dmac.yaml | 137 +++++++++++++++++++++ 2 files changed, 137 insertions(+), 61 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/adi,axi-dmac.txt b/Documentation/devicetree/bindings/dma/adi,axi-dmac.txt deleted file mode 100644 index cd17684aaab5..000000000000 --- a/Documentation/devicetree/bindings/dma/adi,axi-dmac.txt +++ /dev/null @@ -1,61 +0,0 @@ -Analog Devices AXI-DMAC DMA controller - -Required properties: - - compatible: Must be "adi,axi-dmac-1.00.a". - - reg: Specification for the controllers memory mapped register map. - - interrupts: Specification for the controllers interrupt. - - clocks: Phandle and specifier to the controllers AXI interface clock - - #dma-cells: Must be 1. - -Required sub-nodes: - - adi,channels: This sub-node must contain a sub-node for each DMA channel. For - the channel sub-nodes the following bindings apply. They must match the - configuration options of the peripheral as it was instantiated. - -Required properties for adi,channels sub-node: - - #size-cells: Must be 0 - - #address-cells: Must be 1 - -Required channel sub-node properties: - - reg: Which channel this node refers to. - - adi,source-bus-width, - adi,destination-bus-width: Width of the source or destination bus in bits. - - adi,source-bus-type, - adi,destination-bus-type: Type of the source or destination bus. Must be one - of the following: - 0 (AXI_DMAC_TYPE_AXI_MM): Memory mapped AXI interface - 1 (AXI_DMAC_TYPE_AXI_STREAM): Streaming AXI interface - 2 (AXI_DMAC_TYPE_AXI_FIFO): FIFO interface - -Deprecated optional channel properties: - - adi,length-width: Width of the DMA transfer length register. - - adi,cyclic: Must be set if the channel supports hardware cyclic DMA - transfers. - - adi,2d: Must be set if the channel supports hardware 2D DMA transfers. - -DMA clients connected to the AXI-DMAC DMA controller must use the format -described in the dma.txt file using a one-cell specifier. The value of the -specifier refers to the DMA channel index. - -Example: - -dma: dma@7c420000 { - compatible = "adi,axi-dmac-1.00.a"; - reg = <0x7c420000 0x10000>; - interrupts = <0 57 0>; - clocks = <&clkc 16>; - #dma-cells = <1>; - - adi,channels { - #size-cells = <0>; - #address-cells = <1>; - - dma-channel@0 { - reg = <0>; - adi,source-bus-width = <32>; - adi,source-bus-type = <ADI_AXI_DMAC_TYPE_MM_AXI>; - adi,destination-bus-width = <64>; - adi,destination-bus-type = <ADI_AXI_DMAC_TYPE_FIFO>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml b/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml new file mode 100644 index 000000000000..e457630ec7c0 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml @@ -0,0 +1,137 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/adi,axi-dmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AXI-DMAC DMA controller + +description: http://analogdevicesinc.github.io/hdl/library/axi_dmac/index.html + +maintainers: + - Nuno Sa <nuno.sa@xxxxxxxxxx> + +properties: + compatible: + const: adi,axi-dmac-1.00.a + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + "#dma-cells": + const: 1 + + adi,channels: + type: object + description: This sub-node must contain a sub-node for each DMA channel. + + properties: + "#size-cells": + const: 0 + "#address-cells": + const: 1 + + patternProperties: + "^dma-channel@[0-9a-f]+$": + type: object + description: + DMA channel properties based on HDL compile-time configuration. + + properties: + reg: + maxItems: 1 + + adi,source-bus-width: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Width of the source bus in bits. + enum: [8, 16, 32, 64, 128] + + adi,destination-bus-width: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Width of the destination bus in bits. + enum: [8, 16, 32, 64, 128] + + # 0 (AXI_DMAC_TYPE_AXI_MM): Memory mapped AXI interface + # 1 (AXI_DMAC_TYPE_AXI_STREAM): Streaming AXI interface + # 2 (AXI_DMAC_TYPE_AXI_FIFO): FIFO interface + + adi,source-bus-type: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Type of the source bus. + enum: [0, 1, 2] + + adi,destination-bus-type: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Type of the destination bus. + enum: [0, 1, 2] + + adi,length-width: + deprecated: true + $ref: /schemas/types.yaml#/definitions/uint32 + description: Width of the DMA transfer length register. + + adi,cyclic: + deprecated: true + type: boolean + description: + Must be set if the channel supports hardware cyclic DMA transfers. + + adi,2d: + deprecated: true + type: boolean + description: + Must be set if the channel supports hardware 2D DMA transfers. + + required: + - reg + - adi,source-bus-width + - adi,destination-bus-width + - adi,source-bus-type + - adi,destination-bus-type + + additionalProperties: false + + required: + - "#size-cells" + - "#address-cells" + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - clocks + - "#dma-cells" + - adi,channels + +additionalProperties: false + +examples: + - | + dma: dma@7c420000 { + compatible = "adi,axi-dmac-1.00.a"; + reg = <0x7c420000 0x10000>; + interrupts = <0 57 0>; + clocks = <&clkc 16>; + #dma-cells = <1>; + + adi,channels { + #size-cells = <0>; + #address-cells = <1>; + + dma-channel@0 { + reg = <0>; + adi,source-bus-width = <32>; + adi,source-bus-type = <0>; /* AXI_DMAC_TYPE_AXI_MM */ + adi,destination-bus-width = <64>; + adi,destination-bus-type = <2>; /* AXI_DMAC_TYPE_AXI_FIFO */ + }; + }; + }; -- 2.43.0
