projects / people / ms / linux.git / blame
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|---|---|---|
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1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2019 BayLibre, SAS | |
| 3 | %YAML 1.2 | |
| 4 | --- | |
| 5 | $id: "http://devicetree.org/schemas/spi/amlogic,meson-gx-spicc.yaml#" | |
| 6 | $schema: "http://devicetree.org/meta-schemas/core.yaml#" | |
| 7 | ||
| 8 | title: Amlogic Meson SPI Communication Controller | |
| 9 | ||
| 10 | maintainers: | |
| c6a43fb3 | 11 | - Neil Armstrong <neil.armstrong@linaro.org> |
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12 | |
| 13 | allOf: | |
| 14 | - $ref: "spi-controller.yaml#" | |
| 15 | ||
| 16 | description: | | |
| 17 | The Meson SPICC is a generic SPI controller for general purpose Full-Duplex | |
| 18 | communications with dedicated 16 words RX/TX PIO FIFOs. | |
| 19 | ||
| 20 | properties: | |
| 21 | compatible: | |
| 22 | enum: | |
| 23 | - amlogic,meson-gx-spicc # SPICC controller on Amlogic GX and compatible SoCs | |
| 24 | - amlogic,meson-axg-spicc # SPICC controller on Amlogic AXG and compatible SoCs | |
| 9ea7db81 | 25 | - amlogic,meson-g12a-spicc # SPICC controller on Amlogic G12A and compatible SoCs |
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26 | |
| 27 | interrupts: | |
| 28 | maxItems: 1 | |
| 29 | ||
| 30 | reg: | |
| 31 | maxItems: 1 | |
| 32 | ||
| 33 | resets: | |
| 34 | maxItems: 1 | |
| 35 | ||
| 36 | clocks: | |
| a575357b | 37 | minItems: 1 |
| a575357b AS |
38 | items: |
| 39 | - description: controller register bus clock | |
| 40 | - description: baud rate generator and delay control clock | |
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41 | |
| 42 | clock-names: | |
| a575357b AS |
43 | minItems: 1 |
| 44 | maxItems: 2 | |
| 66de150a | 45 | |
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46 | if: |
| 47 | properties: | |
| 48 | compatible: | |
| 49 | contains: | |
| 50 | enum: | |
| 51 | - amlogic,meson-g12a-spicc | |
| 52 | ||
| 53 | then: | |
| 54 | properties: | |
| 55 | clocks: | |
| a575357b | 56 | minItems: 2 |
| 9ea7db81 NA |
57 | |
| 58 | clock-names: | |
| 9ea7db81 NA |
59 | items: |
| 60 | - const: core | |
| 61 | - const: pclk | |
| 62 | ||
| a575357b AS |
63 | else: |
| 64 | properties: | |
| 65 | clocks: | |
| 66 | maxItems: 1 | |
| 67 | ||
| 68 | clock-names: | |
| 69 | items: | |
| 70 | - const: core | |
| 71 | ||
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72 | required: |
| 73 | - compatible | |
| 74 | - reg | |
| 75 | - interrupts | |
| 76 | - clocks | |
| 77 | - clock-names | |
| 78 | ||
| 6fdc6e23 RH |
79 | unevaluatedProperties: false |
| 80 | ||
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81 | examples: |
| 82 | - | | |
| 83 | spi@c1108d80 { | |
| 84 | compatible = "amlogic,meson-gx-spicc"; | |
| 85 | reg = <0xc1108d80 0x80>; | |
| 86 | interrupts = <112>; | |
| 87 | clocks = <&clk81>; | |
| 88 | clock-names = "core"; | |
| 89 | #address-cells = <1>; | |
| 90 | #size-cells = <0>; | |
| 91 | ||
| 28ffe8bf RH |
92 | display@0 { |
| 93 | compatible = "lg,lg4573"; | |
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94 | spi-max-frequency = <1000000>; |
| 95 | reg = <0>; | |
| 96 | }; | |
| 97 | }; |