Add DT bindings YAML schema for SSO controller driver of Lightning Mountain (LGM) SoC. Signed-off-by: Amireddy Mallikarjuna reddy <mallikarjunax.reddy@xxxxxxxxxxxxxxx> --- v1: - Initial version v2: - Fix bot errors (wrong indentation). - Spell out LGM and SSO. - Remove vendor specific name for LED properites. - removed deprecating property "label" - Include 'reg', 'function' & 'color' properties. --- .../devicetree/bindings/leds/leds-lgm.yaml | 130 +++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-lgm.yaml diff --git a/Documentation/devicetree/bindings/leds/leds-lgm.yaml b/Documentation/devicetree/bindings/leds/leds-lgm.yaml new file mode 100644 index 000000000000..d9c53ec30ad1 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-lgm.yaml @@ -0,0 +1,130 @@ +# 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: + - Yixin.zhu@xxxxxxxxx + - mallikarjunax.reddy@xxxxxxxxx + +properties: + compatible: + const: intel,sso-led + + reg: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + maxItems: 2 + items: + - const: sso + - const: fpid + + gpio-controller: true + + '#gpio-cells': + const: 2 + + intel,sso-gpio-base: + $ref: /schemas/types.yaml#definitions/uint32 + description: + Identifies the first gpio handled. + + ngpios: + minimum: 0 + maximum: 32 + description: + Number of GPIOs this controller provides. + + intel,sso-update-rate: + $ref: /schemas/types.yaml#definitions/uint32 + description: + Blink frequency for SOUTs in Hz. + + ssoled: + type: object + description: + This sub-node must contain a sub-node for each leds. + + patternProperties: + "^led@[0-23]$": + type: object + + properties: + reg: + description: Index of the LED. + minimum: 0 + maximum: 2 + + sso-hw-trigger: + type: boolean + description: This property indicates Hardware driven/control LED. + + sso-hw-blink: + type: boolean + description: This property indicates Enable LED blink by Hardware. + + sso-blink-rate: + $ref: /schemas/types.yaml#/definitions/uint32 + 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 = <250000>; + + ssoled { + #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>; + }; + }; + }; -- 2.11.0
