mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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414145b4cf
Add support for the SPI IPM controller found on MediaTek's MT6991 (Dimensity) and MT8196 (Kompanio) SoCs, with both having the same controller IP, hence being fully compatible with each other. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20250611110747.458090-1-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
122 lines
3.1 KiB
YAML
122 lines
3.1 KiB
YAML
# 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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$id: http://devicetree.org/schemas/spi/mediatek,spi-mt65xx.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SPI Bus controller for MediaTek ARM SoCs
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maintainers:
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- Leilk Liu <leilk.liu@mediatek.com>
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allOf:
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- $ref: /schemas/spi/spi-controller.yaml#
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- mediatek,mt7629-spi
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- mediatek,mt8365-spi
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- const: mediatek,mt7622-spi
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- items:
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- enum:
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- mediatek,mt8516-spi
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- const: mediatek,mt2712-spi
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- items:
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- enum:
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- mediatek,mt6779-spi
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- mediatek,mt8186-spi
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- mediatek,mt8192-spi
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- mediatek,mt8195-spi
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- const: mediatek,mt6765-spi
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- items:
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- enum:
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- mediatek,mt7981-spi-ipm
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- mediatek,mt7986-spi-ipm
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- mediatek,mt7988-spi-quad
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- mediatek,mt7988-spi-single
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- mediatek,mt8188-spi-ipm
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- const: mediatek,spi-ipm
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- items:
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- enum:
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- mediatek,mt8196-spi
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- const: mediatek,mt6991-spi
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- items:
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- enum:
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- mediatek,mt2701-spi
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- mediatek,mt2712-spi
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- mediatek,mt6589-spi
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- mediatek,mt6765-spi
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- mediatek,mt6893-spi
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- mediatek,mt6991-spi
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- mediatek,mt7622-spi
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- mediatek,mt8135-spi
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- mediatek,mt8173-spi
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- mediatek,mt8183-spi
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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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minItems: 3
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items:
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- description: clock used for the parent clock
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- description: clock used for the muxes clock
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- description: clock used for the clock gate
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- description: clock used for the AHB bus, this clock is optional
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clock-names:
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minItems: 3
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items:
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- const: parent-clk
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- const: sel-clk
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- const: spi-clk
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- const: hclk
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mediatek,pad-select:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 4
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items:
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enum: [0, 1, 2, 3]
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description:
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specify which pins group(ck/mi/mo/cs) spi controller used.
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This is an array.
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required:
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- compatible
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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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- '#address-cells'
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- '#size-cells'
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/mt8173-clk.h>
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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spi@1100a000 {
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compatible = "mediatek,mt8173-spi";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x1100a000 0x1000>;
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interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
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clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
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<&topckgen CLK_TOP_SPI_SEL>,
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<&pericfg CLK_PERI_SPI0>;
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clock-names = "parent-clk", "sel-clk", "spi-clk";
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cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
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mediatek,pad-select = <1>, <0>;
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};
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