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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-5ec18598e79sm2452495eaf.14.2024.10.29.12.29.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Oct 2024 12:29:21 -0700 (PDT) From: David Lechner Date: Tue, 29 Oct 2024 14:29:14 -0500 Subject: [PATCH v2 1/2] dt-bindings: dma: adi,axi-dmac: convert to yaml schema Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241029-axi-dma-dt-yaml-v2-1-52a6ec7df251@baylibre.com> References: <20241029-axi-dma-dt-yaml-v2-0-52a6ec7df251@baylibre.com> In-Reply-To: <20241029-axi-dma-dt-yaml-v2-0-52a6ec7df251@baylibre.com> To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nuno Sa Cc: Lars-Peter Clausen , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Lechner X-Mailer: b4 0.14.1 Convert the AXI DMAC bindings from .txt to .yaml. Acked-by: Nuno Sa Signed-off-by: David Lechner Reviewed-by: Rob Herring (Arm) --- 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. As in v1, the rob-bot is likely to complain with the following: Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml: properties:adi,ch= annels: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 This is due to the fact that we have a vendor prefix on an object node. We can't change that since it is an existing binding. Rob said he will fix this in dtschema. --- .../devicetree/bindings/dma/adi,axi-dmac.txt | 61 --------- .../devicetree/bindings/dma/adi,axi-dmac.yaml | 139 +++++++++++++++++= ++++ 2 files changed, 139 insertions(+), 61 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/adi,axi-dmac.txt b/Docum= entation/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 channe= l. 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 bi= ts. - - adi,source-bus-type, - adi,destination-bus-type: Type of the source or destination bus. Must b= e 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 =3D "adi,axi-dmac-1.00.a"; - reg =3D <0x7c420000 0x10000>; - interrupts =3D <0 57 0>; - clocks =3D <&clkc 16>; - #dma-cells =3D <1>; - - adi,channels { - #size-cells =3D <0>; - #address-cells =3D <1>; - - dma-channel@0 { - reg =3D <0>; - adi,source-bus-width =3D <32>; - adi,source-bus-type =3D ; - adi,destination-bus-width =3D <64>; - adi,destination-bus-type =3D ; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml b/Docu= mentation/devicetree/bindings/dma/adi,axi-dmac.yaml new file mode 100644 index 000000000000..b1f4bdcab4fd --- /dev/null +++ b/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml @@ -0,0 +1,139 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/adi,axi-dmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AXI-DMAC DMA controller + +description: | + FPGA-based DMA controller designed for use with high-speed converter har= dware. + + http://analogdevicesinc.github.io/hdl/library/axi_dmac/index.html + +maintainers: + - Nuno Sa + +additionalProperties: false + +properties: + compatible: + const: adi,axi-dmac-1.00.a + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + "#dma-cells": + const: 1 + + adi,channels: + type: object + description: This sub-node must contain a sub-node for each DMA channe= l. + additionalProperties: false + + properties: + "#size-cells": + const: 0 + "#address-cells": + const: 1 + + patternProperties: + "^dma-channel@[0-9a-f]+$": + type: object + description: + DMA channel properties based on HDL compile-time configuration. + additionalProperties: false + + 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] + + adi,source-bus-type: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Type of the source bus. + + 0: Memory mapped AXI interface + 1: Streaming AXI interface + 2: FIFO interface + enum: [0, 1, 2] + + adi,destination-bus-type: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Type of the destination bus (see adi,source-bus-t= ype). + 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 tran= sfers. + + adi,2d: + deprecated: true + type: boolean + description: + Must be set if the channel supports hardware 2D DMA transfer= s. + + required: + - reg + - adi,source-bus-width + - adi,destination-bus-width + - adi,source-bus-type + - adi,destination-bus-type + + required: + - "#size-cells" + - "#address-cells" + +required: + - compatible + - reg + - interrupts + - clocks + - "#dma-cells" + - adi,channels + +examples: + - | + dma-controller@7c420000 { + compatible =3D "adi,axi-dmac-1.00.a"; 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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-5ec18598e79sm2452495eaf.14.2024.10.29.12.29.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Oct 2024 12:29:24 -0700 (PDT) From: David Lechner Date: Tue, 29 Oct 2024 14:29:15 -0500 Subject: [PATCH v2 2/2] dt-bindings: dma: adi,axi-dmac: deprecate adi,channels node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241029-axi-dma-dt-yaml-v2-2-52a6ec7df251@baylibre.com> References: <20241029-axi-dma-dt-yaml-v2-0-52a6ec7df251@baylibre.com> In-Reply-To: <20241029-axi-dma-dt-yaml-v2-0-52a6ec7df251@baylibre.com> To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nuno Sa Cc: Lars-Peter Clausen , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Lechner X-Mailer: b4 0.14.1 Deprecate the adi,channels node in the adi,axi-dmac binding. Prior to IP version 4.3.a, this information was required. Since then, there are memory-mapped registers that can be read to get the same information. Acked-by: Nuno Sa Signed-off-by: David Lechner Reviewed-by: Rob Herring (Arm) --- For context, the adi,channels node has not been required in the Linux kernel since [1]. [1]: https://lore.kernel.org/all/20200825151950.57605-7-alexandru.ardelean@= analog.com/ --- .../devicetree/bindings/dma/adi,axi-dmac.yaml | 19 +++++----------= ---- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml b/Docu= mentation/devicetree/bindings/dma/adi,axi-dmac.yaml index b1f4bdcab4fd..4a4295e699f0 100644 --- a/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/adi,axi-dmac.yaml @@ -33,8 +33,12 @@ properties: const: 1 =20 adi,channels: + deprecated: true type: object - description: This sub-node must contain a sub-node for each DMA channe= l. + description: + This sub-node must contain a sub-node for each DMA channel. This nod= e is + only required for IP versions older than 4.3.a and should otherwise = be + omitted. additionalProperties: false =20 properties: @@ -123,17 +127,4 @@ examples: interrupts =3D <0 57 0>; clocks =3D <&clkc 16>; #dma-cells =3D <1>; - - adi,channels { - #size-cells =3D <0>; - #address-cells =3D <1>; - - dma-channel@0 { - reg =3D <0>; - adi,source-bus-width =3D <32>; - adi,source-bus-type =3D <0>; /* Memory mapped */ - adi,destination-bus-width =3D <64>; - adi,destination-bus-type =3D <2>; /* FIFO */ - }; - }; }; --=20 2.43.0