Unverified Commit 934b05e8 authored by ChiYuan Huang's avatar ChiYuan Huang Committed by Mark Brown
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regulator: rt4831: Adds DT binding document for Richtek RT4831 DSV regulator 



Adds DT binding document for Richtek RT4831 DSV regulator.

Signed-off-by: default avatarChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1608217244-314-3-git-send-email-u0084500@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ac6b559d

Documentation/devicetree/bindings/regulator/richtek,rt4831-regulator.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/regulator/richtek,rt4831-regulator.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Richtek RT4831 Display Bias Voltage Regulator



maintainers:

  - ChiYuan Huang <cy_huang@richtek.com>



description: |

  RT4831 is a multifunctional device that can provide power to the LCD display

  and LCD backlight.



  For Display Bias Voltage DSVP and DSVN, the output range is about 4V to 6.5V.

  It is sufficient to meet the current LCD power requirement.



  DSVLCM is a boost regulator in IC internal as DSVP and DSVN input power.

  Its voltage should be configured above 0.15V to 0.2V gap larger than the

  voltage needed for DSVP and DSVN. Too much voltage gap could improve the

  voltage drop from the heavy loading scenario. But it also make the power

  efficiency worse. It's a trade-off.



  Datasheet is available at

  https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf



patternProperties:

  "^DSV(LCM|P|N)$":

    type: object

    $ref: regulator.yaml#

    description:

      Properties for single Display Bias Voltage regulator.



additionalProperties: false