| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/leds/leds-lgm.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Intel Lightning Mountain (LGM) SoC LED Serial Shift Output (SSO) Controller driver |
| |
| maintainers: |
| - Zhu, Yi Xin <Yixin.zhu@intel.com> |
| - Amireddy Mallikarjuna reddy <mallikarjunax.reddy@intel.com> |
| |
| properties: |
| compatible: |
| const: intel,lgm-ssoled |
| |
| gpio-controller: true |
| |
| '#gpio-cells': |
| const: 2 |
| |
| ngpios: |
| minimum: 0 |
| maximum: 32 |
| description: |
| Number of GPIOs this controller provides. |
| |
| intel,sso-update-rate-hz: |
| description: |
| Blink frequency for SOUTs in Hz. |
| |
| led-controller: |
| type: object |
| description: |
| This sub-node must contain a sub-node for each leds. |
| |
| additionalProperties: false |
| |
| patternProperties: |
| "^led@[0-23]$": |
| type: object |
| |
| properties: |
| reg: |
| description: Index of the LED. |
| minimum: 0 |
| maximum: 2 |
| |
| intel,sso-hw-trigger: |
| type: boolean |
| description: This property indicates Hardware driven/control LED. |
| |
| intel,sso-hw-blink: |
| type: boolean |
| description: This property indicates Enable LED blink by Hardware. |
| |
| intel,sso-blink-rate-hz: |
| description: LED HW blink frequency. |
| |
| retain-state-suspended: |
| type: boolean |
| description: The suspend state of LED can be retained. |
| |
| retain-state-shutdown: |
| type: boolean |
| description: Retain the state of the LED on shutdown. |
| |
| required: |
| - compatible |
| - reg |
| - clocks |
| - clock-names |
| - "#gpio-cells" |
| - gpio-controller |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/intel,lgm-clk.h> |
| #include <dt-bindings/leds/common.h> |
| |
| ssogpio: ssogpio@e0d40000 { |
| compatible = "intel,sso-led"; |
| reg = <0xE0D40000 0x2E4>; |
| gpio-controller; |
| #gpio-cells = <2>; |
| ngpios = <32>; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&pinctrl_ledc>; |
| clocks = <&cgu0 LGM_GCLK_LEDC0>, <&afeclk>; |
| clock-names = "sso", "fpid"; |
| intel,sso-update-rate-hz = <250000>; |
| |
| led-controller { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| led@0 { |
| reg = <0>; |
| function = "gphy"; |
| color = <LED_COLOR_ID_GREEN>; |
| led-gpio = <&ssogpio 0 0>; |
| }; |
| |
| led@23 { |
| reg = <23>; |
| function = LED_FUNCTION_POWER; |
| color = <LED_COLOR_ID_GREEN>; |
| led-gpio = <&ssogpio 23 0>; |
| }; |
| }; |
| }; |
