The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/regulator/richtek,rt4831-regulator.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/regulator/richtek,rt4831-regulator.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Richtek RT4831 Display Bias Voltage Regulator
    8 
    9 maintainers:
   10   - ChiYuan Huang <cy_huang@richtek.com>
   11 
   12 description: |
   13   RT4831 is a multifunctional device that can provide power to the LCD display
   14   and LCD backlight.
   15 
   16   For Display Bias Voltage DSVP and DSVN, the output range is about 4V to 6.5V.
   17   It is sufficient to meet the current LCD power requirement.
   18 
   19   DSVLCM is a boost regulator in IC internal as DSVP and DSVN input power.
   20   Its voltage should be configured above 0.15V to 0.2V gap larger than the
   21   voltage needed for DSVP and DSVN. Too much voltage gap could improve the
   22   voltage drop from the heavy loading scenario. But it also make the power
   23   efficiency worse. It's a trade-off.
   24 
   25   Datasheet is available at
   26   https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
   27 
   28 patternProperties:
   29   "^DSV(LCM|P|N)$":
   30     type: object
   31     $ref: regulator.yaml#
   32     description:
   33       Properties for single Display Bias Voltage regulator.
   34 
   35 additionalProperties: false

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