From: ChiYuan Huang Date: Thu, 17 Dec 2020 15:00:41 +0000 (+0800) Subject: regulator: rt4831: Adds DT binding document for Richtek RT4831 DSV regulator X-Git-Tag: accepted/tizen/unified/20230118.172025~7106^2~39^2~41 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=934b05e818620e922151734b2d0e070e388e3c53;p=platform%2Fkernel%2Flinux-rpi.git regulator: rt4831: Adds DT binding document for Richtek RT4831 DSV regulator Adds DT binding document for Richtek RT4831 DSV regulator. Signed-off-by: ChiYuan Huang Link: https://lore.kernel.org/r/1608217244-314-3-git-send-email-u0084500@gmail.com Signed-off-by: Mark Brown --- diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt4831-regulator.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt4831-regulator.yaml new file mode 100644 index 0000000..d9c2333 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/richtek,rt4831-regulator.yaml @@ -0,0 +1,35 @@ +# 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 + +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