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