xref: /linux/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/mediatek,spi-mt65xx.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: SPI Bus controller for MediaTek ARM SoCs
8
9maintainers:
10  - Leilk Liu <leilk.liu@mediatek.com>
11
12allOf:
13  - $ref: /schemas/spi/spi-controller.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - items:
19          - enum:
20              - mediatek,mt7629-spi
21              - mediatek,mt8365-spi
22          - const: mediatek,mt7622-spi
23      - items:
24          - enum:
25              - mediatek,mt8516-spi
26          - const: mediatek,mt2712-spi
27      - items:
28          - enum:
29              - mediatek,mt6779-spi
30              - mediatek,mt8186-spi
31              - mediatek,mt8192-spi
32              - mediatek,mt8195-spi
33          - const: mediatek,mt6765-spi
34      - items:
35          - enum:
36              - mediatek,mt7981-spi-ipm
37              - mediatek,mt7986-spi-ipm
38              - mediatek,mt8188-spi-ipm
39          - const: mediatek,spi-ipm
40      - items:
41          - enum:
42              - mediatek,mt2701-spi
43              - mediatek,mt2712-spi
44              - mediatek,mt6589-spi
45              - mediatek,mt6765-spi
46              - mediatek,mt6893-spi
47              - mediatek,mt7622-spi
48              - mediatek,mt8135-spi
49              - mediatek,mt8173-spi
50              - mediatek,mt8183-spi
51
52  reg:
53    maxItems: 1
54
55  interrupts:
56    maxItems: 1
57
58  clocks:
59    minItems: 3
60    items:
61      - description: clock used for the parent clock
62      - description: clock used for the muxes clock
63      - description: clock used for the clock gate
64      - description: clock used for the AHB bus, this clock is optional
65
66  clock-names:
67    minItems: 3
68    items:
69      - const: parent-clk
70      - const: sel-clk
71      - const: spi-clk
72      - const: hclk
73
74  mediatek,pad-select:
75    $ref: /schemas/types.yaml#/definitions/uint32-array
76    minItems: 1
77    maxItems: 4
78    items:
79      enum: [0, 1, 2, 3]
80    description:
81      specify which pins group(ck/mi/mo/cs) spi controller used.
82      This is an array.
83
84required:
85  - compatible
86  - reg
87  - interrupts
88  - clocks
89  - clock-names
90  - '#address-cells'
91  - '#size-cells'
92
93unevaluatedProperties: false
94
95examples:
96  - |
97    #include <dt-bindings/clock/mt8173-clk.h>
98    #include <dt-bindings/gpio/gpio.h>
99    #include <dt-bindings/interrupt-controller/arm-gic.h>
100    #include <dt-bindings/interrupt-controller/irq.h>
101
102    spi@1100a000 {
103      compatible = "mediatek,mt8173-spi";
104      #address-cells = <1>;
105      #size-cells = <0>;
106      reg = <0x1100a000 0x1000>;
107      interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
108      clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
109               <&topckgen CLK_TOP_SPI_SEL>,
110               <&pericfg CLK_PERI_SPI0>;
111      clock-names = "parent-clk", "sel-clk", "spi-clk";
112      cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
113      mediatek,pad-select = <1>, <0>;
114    };
115