| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/regulator/richtek,rtmv20-regulator.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Richtek RTMV20 laser diode regulator |
| |
| maintainers: |
| - ChiYuan Huang <cy_huang@richtek.com> |
| |
| description: | |
| Richtek RTMV20 is a load switch current regulator that can supply up to 6A. |
| It is used to drive laser diode. There're two signals for chip controls |
| (Enable/Fail), Enable pin to turn chip on, and Fail pin as fault indication. |
| There're still four pins for camera control, two inputs (strobe and vsync), |
| the others for outputs (fsin1 and fsin2). Strobe input to start the current |
| supply, vsync input from IR camera, and fsin1/fsin2 output for the optional. |
| |
| properties: |
| compatible: |
| const: richtek,rtmv20 |
| |
| reg: |
| maxItems: 1 |
| |
| wakeup-source: true |
| |
| interrupts: |
| maxItems: 1 |
| |
| enable-gpios: |
| description: A connection of the 'enable' gpio line. |
| maxItems: 1 |
| |
| richtek,ld-pulse-delay-us: |
| description: | |
| load current pulse delay in microsecond after strobe pin pulse high. |
| minimum: 0 |
| maximum: 100000 |
| default: 0 |
| |
| richtek,ld-pulse-width-us: |
| description: | |
| Load current pulse width in microsecond after strobe pin pulse high. |
| minimum: 0 |
| maximum: 10000 |
| default: 1200 |
| |
| richtek,fsin1-delay-us: |
| description: | |
| Fsin1 pulse high delay in microsecond after vsync signal pulse high. |
| minimum: 0 |
| maximum: 100000 |
| default: 23000 |
| |
| richtek,fsin1-width-us: |
| description: | |
| Fsin1 pulse high width in microsecond after vsync signal pulse high. |
| minimum: 40 |
| maximum: 10000 |
| default: 160 |
| |
| richtek,fsin2-delay-us: |
| description: | |
| Fsin2 pulse high delay in microsecond after vsync signal pulse high. |
| minimum: 0 |
| maximum: 100000 |
| default: 23000 |
| |
| richtek,fsin2-width-us: |
| description: | |
| Fsin2 pulse high width in microsecond after vsync signal pulse high. |
| minimum: 40 |
| maximum: 10000 |
| default: 160 |
| |
| richtek,es-pulse-width-us: |
| description: Eye safety function pulse width limit in microsecond. |
| minimum: 0 |
| maximum: 10000 |
| default: 1200 |
| |
| richtek,es-ld-current-microamp: |
| description: Eye safety function load current limit in microamp. |
| minimum: 0 |
| maximum: 6000000 |
| default: 3000000 |
| |
| richtek,lbp-level-microvolt: |
| description: Low battery protection level in microvolt. |
| minimum: 2400000 |
| maximum: 3700000 |
| default: 2700000 |
| |
| richtek,lbp-enable: |
| description: Low battery protection function enable control. |
| type: boolean |
| |
| richtek,strobe-polarity-high: |
| description: Strobe pin active polarity control. |
| type: boolean |
| |
| richtek,vsync-polarity-high: |
| description: Vsync pin active polarity control. |
| type: boolean |
| |
| richtek,fsin-enable: |
| description: Fsin function enable control. |
| type: boolean |
| |
| richtek,fsin-output: |
| description: Fsin function output control. |
| type: boolean |
| |
| richtek,es-enable: |
| description: Eye safety function enable control. |
| type: boolean |
| |
| lsw: |
| description: load switch current regulator description. |
| type: object |
| $ref: "regulator.yaml#" |
| |
| required: |
| - compatible |
| - reg |
| - wakeup-source |
| - interrupts |
| - enable-gpios |
| - lsw |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| rtmv20@34 { |
| compatible = "richtek,rtmv20"; |
| reg = <0x34>; |
| wakeup-source; |
| interrupts-extended = <&gpio26 2 IRQ_TYPE_LEVEL_LOW>; |
| enable-gpios = <&gpio26 3 0>; |
| |
| richtek,strobe-polarity-high; |
| richtek,vsync-polarity-high; |
| |
| lsw { |
| regulator-name = "rtmv20,lsw"; |
| regulator-min-microamp = <0>; |
| regulator-max-microamp = <6000000>; |
| }; |
| }; |
| }; |
| ... |
