dt-bindings: dma: convert MediaTek High-Speed controller to the json-schema
This helps validating DTS files. Introduced changes: 1. Adjusted "reg" in example 2. Added includes to example Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240213063919.20196-1-zajec5@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/dma/mediatek,mt7622-hsdma.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MediaTek High-Speed DMA Controller
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maintainers:
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- Sean Wang <sean.wang@mediatek.com>
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allOf:
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- $ref: dma-controller.yaml#
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properties:
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compatible:
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enum:
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- mediatek,mt7622-hsdma
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- mediatek,mt7623-hsdma
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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const: hsdma
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power-domains:
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maxItems: 1
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"#dma-cells":
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description: Channel number
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const: 1
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required:
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- reg
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- interrupts
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- clocks
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- clock-names
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- power-domains
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/mt2701-clk.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/power/mt2701-power.h>
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dma-controller@1b007000 {
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compatible = "mediatek,mt7623-hsdma";
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reg = <0x1b007000 0x1000>;
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interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>;
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clocks = <ðsys CLK_ETHSYS_HSDMA>;
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clock-names = "hsdma";
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power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
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#dma-cells = <1>;
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};
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MediaTek High-Speed DMA Controller
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==================================
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This device follows the generic DMA bindings defined in dma/dma.txt.
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Required properties:
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- compatible: Must be one of
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"mediatek,mt7622-hsdma": for MT7622 SoC
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"mediatek,mt7623-hsdma": for MT7623 SoC
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- reg: Should contain the register's base address and length.
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- interrupts: Should contain a reference to the interrupt used by this
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device.
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- clocks: Should be the clock specifiers corresponding to the entry in
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clock-names property.
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- clock-names: Should contain "hsdma" entries.
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- power-domains: Phandle to the power domain that the device is part of
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- #dma-cells: The length of the DMA specifier, must be <1>. This one cell
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in dmas property of a client device represents the channel
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number.
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Example:
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hsdma: dma-controller@1b007000 {
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compatible = "mediatek,mt7623-hsdma";
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reg = <0 0x1b007000 0 0x1000>;
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interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>;
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clocks = <ðsys CLK_ETHSYS_HSDMA>;
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clock-names = "hsdma";
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power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
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#dma-cells = <1>;
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};
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DMA clients must use the format described in dma/dma.txt file.
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