Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml

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