| 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/leds/leds-lgm.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Intel Lightning Mountain (LGM) SoC LED Serial Shift Output (SSO) Controller driver |
| 8 | |
| 9 | maintainers: |
| 10 | - Zhu, Yi Xin <Yixin.zhu@intel.com> |
| 11 | - Amireddy Mallikarjuna reddy <mallikarjunax.reddy@intel.com> |
| 12 | |
| 13 | properties: |
| 14 | compatible: |
| 15 | const: intel,lgm-ssoled |
| 16 | |
| 17 | reg: |
| 18 | maxItems: 1 |
| 19 | |
| 20 | clocks: |
| 21 | maxItems: 2 |
| 22 | |
| 23 | clock-names: |
| 24 | items: |
| 25 | - const: sso |
| 26 | - const: fpid |
| 27 | |
| 28 | gpio-controller: true |
| 29 | |
| 30 | '#gpio-cells': |
| 31 | const: 2 |
| 32 | |
| 33 | ngpios: |
| 34 | minimum: 0 |
| 35 | maximum: 32 |
| 36 | description: |
| 37 | Number of GPIOs this controller provides. |
| 38 | |
| 39 | intel,sso-update-rate-hz: |
| 40 | description: |
| 41 | Blink frequency for SOUTs in Hz. |
| 42 | |
| 43 | led-controller: |
| 44 | type: object |
| 45 | description: |
| 46 | This sub-node must contain a sub-node for each leds. |
| 47 | |
| 48 | additionalProperties: false |
| 49 | |
| 50 | properties: |
| 51 | '#address-cells': |
| 52 | const: 1 |
| 53 | |
| 54 | '#size-cells': |
| 55 | const: 0 |
| 56 | |
| 57 | patternProperties: |
| 58 | "^led@[0-2]$": |
| 59 | $ref: common.yaml# |
| 60 | unevaluatedProperties: false |
| 61 | |
| 62 | properties: |
| 63 | reg: |
| 64 | description: Index of the LED. |
| 65 | minimum: 0 |
| 66 | maximum: 2 |
| 67 | |
| 68 | led-gpios: |
| 69 | maxItems: 1 |
| 70 | |
| 71 | intel,sso-hw-trigger: |
| 72 | type: boolean |
| 73 | description: This property indicates Hardware driven/control LED. |
| 74 | |
| 75 | intel,sso-hw-blink: |
| 76 | type: boolean |
| 77 | description: This property indicates Enable LED blink by Hardware. |
| 78 | |
| 79 | intel,sso-blink-rate-hz: |
| 80 | description: LED HW blink frequency. |
| 81 | |
| 82 | retain-state-suspended: |
| 83 | type: boolean |
| 84 | description: The suspend state of LED can be retained. |
| 85 | |
| 86 | retain-state-shutdown: |
| 87 | type: boolean |
| 88 | description: Retain the state of the LED on shutdown. |
| 89 | |
| 90 | required: |
| 91 | - compatible |
| 92 | - reg |
| 93 | - clocks |
| 94 | - clock-names |
| 95 | - "#gpio-cells" |
| 96 | - gpio-controller |
| 97 | |
| 98 | additionalProperties: false |
| 99 | |
| 100 | examples: |
| 101 | - | |
| 102 | #include <dt-bindings/clock/intel,lgm-clk.h> |
| 103 | #include <dt-bindings/leds/common.h> |
| 104 | |
| 105 | ssogpio: ssogpio@e0d40000 { |
| 106 | compatible = "intel,lgm-ssoled"; |
| 107 | reg = <0xE0D40000 0x2E4>; |
| 108 | gpio-controller; |
| 109 | #gpio-cells = <2>; |
| 110 | ngpios = <32>; |
| 111 | pinctrl-names = "default"; |
| 112 | pinctrl-0 = <&pinctrl_ledc>; |
| 113 | clocks = <&cgu0 LGM_GCLK_LEDC0>, <&afeclk>; |
| 114 | clock-names = "sso", "fpid"; |
| 115 | intel,sso-update-rate-hz = <250000>; |
| 116 | |
| 117 | led-controller { |
| 118 | #address-cells = <1>; |
| 119 | #size-cells = <0>; |
| 120 | |
| 121 | led@0 { |
| 122 | reg = <0>; |
| 123 | function = "gphy"; |
| 124 | color = <LED_COLOR_ID_GREEN>; |
| 125 | led-gpios = <&ssogpio 0 0>; |
| 126 | }; |
| 127 | |
| 128 | led@2 { |
| 129 | reg = <2>; |
| 130 | function = LED_FUNCTION_POWER; |
| 131 | color = <LED_COLOR_ID_GREEN>; |
| 132 | led-gpios = <&ssogpio 23 0>; |
| 133 | }; |
| 134 | }; |
| 135 | }; |