Unverified Commit c17756be authored by Mark Brown's avatar Mark Brown
Browse files

spi: Add compatible for Mediatek MT8186

Merge series from Leilk Liu <leilk.liu@mediatek.com>:

This is more YAML conversion than new compatible.
parents 47c3e06e ccbc5d0a
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/mediatek,spi-mt65xx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: SPI Bus controller for MediaTek ARM SoCs

maintainers:
  - Leilk Liu <leilk.liu@mediatek.com>

allOf:
  - $ref: "/schemas/spi/spi-controller.yaml#"

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - mediatek,mt7629-spi
          - const: mediatek,mt7622-spi
      - items:
          - enum:
              - mediatek,mt8516-spi
          - const: mediatek,mt2712-spi
      - items:
          - enum:
              - mediatek,mt6779-spi
              - mediatek,mt8186-spi
              - mediatek,mt8192-spi
              - mediatek,mt8195-spi
          - const: mediatek,mt6765-spi
      - items:
          - enum:
              - mediatek,mt2701-spi
              - mediatek,mt2712-spi
              - mediatek,mt6589-spi
              - mediatek,mt6765-spi
              - mediatek,mt6893-spi
              - mediatek,mt7622-spi
              - mediatek,mt8135-spi
              - mediatek,mt8173-spi
              - mediatek,mt8183-spi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: clock used for the parent clock
      - description: clock used for the muxes clock
      - description: clock used for the clock gate

  clock-names:
    items:
      - const: parent-clk
      - const: sel-clk
      - const: spi-clk

  mediatek,pad-select:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    maxItems: 4
    items:
      enum: [0, 1, 2, 3]
    description:
      specify which pins group(ck/mi/mo/cs) spi controller used.
      This is an array.

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - '#address-cells'
  - '#size-cells'

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/mt8173-clk.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    spi@1100a000 {
      compatible = "mediatek,mt8173-spi";
      #address-cells = <1>;
      #size-cells = <0>;
      reg = <0x1100a000 0x1000>;
      interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
      clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
               <&topckgen CLK_TOP_SPI_SEL>,
               <&pericfg CLK_PERI_SPI0>;
      clock-names = "parent-clk", "sel-clk", "spi-clk";
      cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
      mediatek,pad-select = <1>, <0>;
    };
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/mediatek,spi-slave-mt27xx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: SPI Slave controller for MediaTek ARM SoCs

maintainers:
  - Leilk Liu <leilk.liu@mediatek.com>

allOf:
  - $ref: "/schemas/spi/spi-controller.yaml#"

properties:
  compatible:
    enum:
      - mediatek,mt2712-spi-slave
      - mediatek,mt8195-spi-slave

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: spi

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/mt2712-clk.h>
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    spi@10013000 {
      compatible = "mediatek,mt2712-spi-slave";
      reg = <0x10013000 0x100>;
      interrupts = <GIC_SPI 283 IRQ_TYPE_LEVEL_LOW>;
      clocks = <&infracfg CLK_INFRA_AO_SPI1>;
      clock-names = "spi";
      assigned-clocks = <&topckgen CLK_TOP_SPISLV_SEL>;
      assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL1_D2>;
    };
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Binding for MTK SPI controller

Required properties:
- compatible: should be one of the following.
    - mediatek,mt2701-spi: for mt2701 platforms
    - mediatek,mt2712-spi: for mt2712 platforms
    - mediatek,mt6589-spi: for mt6589 platforms
    - mediatek,mt6765-spi: for mt6765 platforms
    - mediatek,mt7622-spi: for mt7622 platforms
    - "mediatek,mt7629-spi", "mediatek,mt7622-spi": for mt7629 platforms
    - mediatek,mt8135-spi: for mt8135 platforms
    - mediatek,mt8173-spi: for mt8173 platforms
    - mediatek,mt8183-spi: for mt8183 platforms
    - mediatek,mt6893-spi: for mt6893 platforms
    - "mediatek,mt8192-spi", "mediatek,mt6765-spi": for mt8192 platforms
    - "mediatek,mt8195-spi", "mediatek,mt6765-spi": for mt8195 platforms
    - "mediatek,mt8516-spi", "mediatek,mt2712-spi": for mt8516 platforms
    - "mediatek,mt6779-spi", "mediatek,mt6765-spi": for mt6779 platforms

- #address-cells: should be 1.

- #size-cells: should be 0.

- reg: Address and length of the register set for the device

- interrupts: Should contain spi interrupt

- clocks: phandles to input clocks.
  The first should be one of the following. It's PLL.
   -  <&clk26m>: specify parent clock 26MHZ.
   -  <&topckgen CLK_TOP_SYSPLL3_D2>: specify parent clock 109MHZ.
				      It's the default one.
   -  <&topckgen CLK_TOP_SYSPLL4_D2>: specify parent clock 78MHZ.
   -  <&topckgen CLK_TOP_UNIVPLL2_D4>: specify parent clock 104MHZ.
   -  <&topckgen CLK_TOP_UNIVPLL1_D8>: specify parent clock 78MHZ.
  The second should be <&topckgen CLK_TOP_SPI_SEL>. It's clock mux.
  The third is <&pericfg CLK_PERI_SPI0>. It's clock gate.

- clock-names: shall be "parent-clk" for the parent clock, "sel-clk" for the
  muxes clock, and "spi-clk" for the clock gate.

Optional properties:
-cs-gpios: see spi-bus.txt.

- mediatek,pad-select: specify which pins group(ck/mi/mo/cs) spi
  controller used. This is an array, the element value should be 0~3,
  only required for MT8173.
    0: specify GPIO69,70,71,72 for spi pins.
    1: specify GPIO102,103,104,105 for spi pins.
    2: specify GPIO128,129,130,131 for spi pins.
    3: specify GPIO5,6,7,8 for spi pins.

Example:

- SoC Specific Portion:
spi: spi@1100a000 {
	compatible = "mediatek,mt8173-spi";
	#address-cells = <1>;
	#size-cells = <0>;
	reg = <0 0x1100a000 0 0x1000>;
	interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
	clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
		 <&topckgen CLK_TOP_SPI_SEL>,
		 <&pericfg CLK_PERI_SPI0>;
	clock-names = "parent-clk", "sel-clk", "spi-clk";
	cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
	mediatek,pad-select = <1>, <0>;
};
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Binding for MTK SPI Slave controller

Required properties:
- compatible: should be one of the following.
    - mediatek,mt2712-spi-slave: for mt2712 platforms
    - mediatek,mt8195-spi-slave: for mt8195 platforms
- reg: Address and length of the register set for the device.
- interrupts: Should contain spi interrupt.
- clocks: phandles to input clocks.
  It's clock gate, and should be <&infracfg CLK_INFRA_AO_SPI1>.
- clock-names: should be "spi" for the clock gate.

Optional properties:
- assigned-clocks: it's mux clock, should be <&topckgen CLK_TOP_SPISLV_SEL>.
- assigned-clock-parents: parent of mux clock.
  It's PLL, and should be one of the following.
   -  <&topckgen CLK_TOP_UNIVPLL1_D2>: specify parent clock 312MHZ.
				       It's the default one.
   -  <&topckgen CLK_TOP_UNIVPLL1_D4>: specify parent clock 156MHZ.
   -  <&topckgen CLK_TOP_UNIVPLL2_D4>: specify parent clock 104MHZ.
   -  <&topckgen CLK_TOP_UNIVPLL1_D8>: specify parent clock 78MHZ.

Example:
- SoC Specific Portion:
spis1: spi@10013000 {
	compatible = "mediatek,mt2712-spi-slave";
	reg = <0 0x10013000 0 0x100>;
	interrupts = <GIC_SPI 283 IRQ_TYPE_LEVEL_LOW>;
	clocks = <&infracfg CLK_INFRA_AO_SPI1>;
	clock-names = "spi";
	assigned-clocks = <&topckgen CLK_TOP_SPISLV_SEL>;
	assigned-clock-parents = <&topckgen CLK_TOP_UNIVPLL1_D2>;
};