From: ChiYuan Huang <cy_huang@xxxxxxxxxxx> Add the binding document for Richtek RT5739. Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- Since v3: - Add 'Reviewed-by" tag. Since v2: - Refine dt-binding patch subject - Shorten and refine title and description without too much marketing text. - Fix the typo from 'connecton' to 'connection' in 'richtek,vsel-active-high' property description - Remove maxItems in property 'regulator-allowed-modes' - Fix the wrong min/max microvolt in binding example. Must be '300000' and '1300000', respectively. --- .../bindings/regulator/richtek,rt5739.yaml | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/richtek,rt5739.yaml diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt5739.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt5739.yaml new file mode 100644 index 00000000..358297d --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/richtek,rt5739.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/richtek,rt5739.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Richtek RT5739 Step-Down Buck Converter + +maintainers: + - ChiYuan Huang <cy_huang@xxxxxxxxxxx> + +description: | + The RT5739 is a step-down switching buck converter that can deliver the + programmable output voltage from 300mV to 1300mV with wide input voltage + supply of 2.5V to 5.5V. It can provide up to 3.5A continuous current + capability at over 80% high efficiency. + +allOf: + - $ref: regulator.yaml# + +properties: + compatible: + enum: + - richtek,rt5739 + + reg: + maxItems: 1 + + enable-gpios: + maxItems: 1 + + richtek,vsel-active-high: + description: | + If property is present, use the 'VSEL1' register group for buck control. + Else, use the 'VSEL0' register group. This depends on external hardware + 'VSEL' pin connection. + type: boolean + + regulator-allowed-modes: + description: | + buck allowed operating mode + 0: Auto PFM/PWM mode + 1: Forced PWM mode + items: + enum: [0, 1] + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@50 { + compatible = "richtek,rt5739"; + reg = <0x50>; + enable-gpios = <&gpio26 1 GPIO_ACTIVE_HIGH>; + richtek,vsel-active-high; + regulator-name = "richtek,rt5739-buck"; + regulator-min-microvolt = <300000>; + regulator-max-microvolt = <1300000>; + regulator-allowed-modes = <0 1>; + regulator-boot-on; + }; + }; -- 2.7.4
