| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/gpio/socionext,uniphier-gpio.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: UniPhier GPIO controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Masahiro Yamada <yamada.masahiro@socionext.com> |
| 11 | |
| 12 | properties: |
| 13 | $nodename: |
| 14 | pattern: "^gpio@[0-9a-f]+$" |
| 15 | |
| 16 | compatible: |
| 17 | const: socionext,uniphier-gpio |
| 18 | |
| 19 | reg: |
| 20 | maxItems: 1 |
| 21 | |
| 22 | gpio-controller: true |
| 23 | |
| 24 | "#gpio-cells": |
| 25 | const: 2 |
| 26 | |
| 27 | interrupt-controller: true |
| 28 | |
| 29 | "#interrupt-cells": |
| 30 | description: | |
| 31 | The first cell defines the interrupt number. |
| 32 | The second cell bits[3:0] is used to specify trigger type as follows: |
| 33 | 1 = low-to-high edge triggered |
| 34 | 2 = high-to-low edge triggered |
| 35 | 4 = active high level-sensitive |
| 36 | 8 = active low level-sensitive |
| 37 | Valid combinations are 1, 2, 3, 4, 8. |
| 38 | const: 2 |
| 39 | |
| 40 | ngpios: |
| 41 | minimum: 0 |
| 42 | maximum: 512 |
| 43 | |
| 44 | gpio-ranges: true |
| 45 | |
| 46 | gpio-ranges-group-names: true |
| 47 | |
| 48 | socionext,interrupt-ranges: |
| 49 | description: | |
| 50 | Specifies an interrupt number mapping between this GPIO controller and |
| 51 | its interrupt parent, in the form of arbitrary number of |
| 52 | <child-interrupt-base parent-interrupt-base length> triplets. |
| 53 | $ref: /schemas/types.yaml#/definitions/uint32-matrix |
| 54 | |
| 55 | patternProperties: |
| 56 | "^.+-hog(-[0-9]+)?$": |
| 57 | type: object |
| 58 | properties: |
| 59 | gpio-hog: true |
| 60 | gpios: true |
| 61 | input: true |
| 62 | output-high: true |
| 63 | output-low: true |
| 64 | line-name: true |
| 65 | |
| 66 | required: |
| 67 | - gpio-hog |
| 68 | - gpios |
| 69 | |
| 70 | additionalProperties: false |
| 71 | |
| 72 | required: |
| 73 | - compatible |
| 74 | - reg |
| 75 | - gpio-controller |
| 76 | - "#gpio-cells" |
| 77 | - interrupt-controller |
| 78 | - "#interrupt-cells" |
| 79 | - ngpios |
| 80 | - gpio-ranges |
| 81 | - socionext,interrupt-ranges |
| 82 | |
| 83 | additionalProperties: false |
| 84 | |
| 85 | examples: |
| 86 | - | |
| 87 | #include <dt-bindings/gpio/gpio.h> |
| 88 | #include <dt-bindings/gpio/uniphier-gpio.h> |
| 89 | |
| 90 | gpio: gpio@55000000 { |
| 91 | compatible = "socionext,uniphier-gpio"; |
| 92 | reg = <0x55000000 0x200>; |
| 93 | interrupt-parent = <&aidet>; |
| 94 | interrupt-controller; |
| 95 | #interrupt-cells = <2>; |
| 96 | gpio-controller; |
| 97 | #gpio-cells = <2>; |
| 98 | gpio-ranges = <&pinctrl 0 0 0>; |
| 99 | gpio-ranges-group-names = "gpio_range"; |
| 100 | ngpios = <248>; |
| 101 | socionext,interrupt-ranges = <0 48 16>, <16 154 5>, <21 217 3>; |
| 102 | }; |
| 103 | |
| 104 | // Consumer: |
| 105 | // Please note UNIPHIER_GPIO_PORT(29, 4) represents PORT294 in the SoC |
| 106 | // document. Unfortunately, only the one's place is octal in the port |
| 107 | // numbering. (That is, PORT 8, 9, 18, 19, 28, 29, ... do not exist.) |
| 108 | // UNIPHIER_GPIO_PORT() is a helper macro to calculate 29 * 8 + 4. |
| 109 | sdhci0_pwrseq { |
| 110 | compatible = "mmc-pwrseq-emmc"; |
| 111 | reset-gpios = <&gpio UNIPHIER_GPIO_PORT(29, 4) GPIO_ACTIVE_LOW>; |
| 112 | }; |