| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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: |
| 11 | - Neil Armstrong <neil.armstrong@linaro.org> |
| 12 | |
| 13 | description: | |
| 14 | The Meson SPICC is a generic SPI controller for general purpose Full-Duplex |
| 15 | communications with dedicated 16 words RX/TX PIO FIFOs. |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | enum: |
| 20 | - amlogic,meson-gx-spicc # SPICC controller on Amlogic GX and compatible SoCs |
| 21 | - amlogic,meson-axg-spicc # SPICC controller on Amlogic AXG and compatible SoCs |
| 22 | - amlogic,meson-g12a-spicc # SPICC controller on Amlogic G12A and compatible SoCs |
| 23 | |
| 24 | interrupts: |
| 25 | maxItems: 1 |
| 26 | |
| 27 | reg: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | resets: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | clocks: |
| 34 | minItems: 1 |
| 35 | items: |
| 36 | - description: controller register bus clock |
| 37 | - description: baud rate generator and delay control clock |
| 38 | |
| 39 | clock-names: |
| 40 | minItems: 1 |
| 41 | maxItems: 2 |
| 42 | |
| 43 | allOf: |
| 44 | - $ref: spi-controller.yaml# |
| 45 | - if: |
| 46 | properties: |
| 47 | compatible: |
| 48 | contains: |
| 49 | enum: |
| 50 | - amlogic,meson-g12a-spicc |
| 51 | |
| 52 | then: |
| 53 | properties: |
| 54 | clocks: |
| 55 | minItems: 2 |
| 56 | |
| 57 | clock-names: |
| 58 | items: |
| 59 | - const: core |
| 60 | - const: pclk |
| 61 | |
| 62 | else: |
| 63 | properties: |
| 64 | clocks: |
| 65 | maxItems: 1 |
| 66 | |
| 67 | clock-names: |
| 68 | items: |
| 69 | - const: core |
| 70 | |
| 71 | - if: |
| 72 | properties: |
| 73 | compatible: |
| 74 | contains: |
| 75 | enum: |
| 76 | - amlogic,meson-gx-spicc |
| 77 | |
| 78 | then: |
| 79 | properties: |
| 80 | pinctrl-0: true |
| 81 | pinctrl-1: true |
| 82 | pinctrl-2: true |
| 83 | |
| 84 | pinctrl-names: |
| 85 | minItems: 1 |
| 86 | items: |
| 87 | - const: default |
| 88 | - const: idle-high |
| 89 | - const: idle-low |
| 90 | |
| 91 | required: |
| 92 | - compatible |
| 93 | - reg |
| 94 | - interrupts |
| 95 | - clocks |
| 96 | - clock-names |
| 97 | |
| 98 | unevaluatedProperties: false |
| 99 | |
| 100 | examples: |
| 101 | - | |
| 102 | spi@c1108d80 { |
| 103 | compatible = "amlogic,meson-gx-spicc"; |
| 104 | reg = <0xc1108d80 0x80>; |
| 105 | interrupts = <112>; |
| 106 | clocks = <&clk81>; |
| 107 | clock-names = "core"; |
| 108 | #address-cells = <1>; |
| 109 | #size-cells = <0>; |
| 110 | |
| 111 | display@0 { |
| 112 | compatible = "lg,lg4573"; |
| 113 | spi-max-frequency = <1000000>; |
| 114 | reg = <0>; |
| 115 | }; |
| 116 | }; |