From: ChiYuan Huang <[email protected]>
Add bindings for the Richtek RT9471 I2C controlled battery charger.
Co-developed-by: Alina Yu <[email protected]>
Signed-off-by: Alina Yu <[email protected]>
Signed-off-by: ChiYuan Huang <[email protected]>
---
Since v2
- Remove the properties for interrupt controller things in the binding documentation.
- Fix dtc error for typo, it's 'regulator-name', not 'regulator-compatible'.
- Add regulator min/max microamp to allow otg vbus current adjustable in example.
- Specify the active-level for charge-enable-gpios in binding example.
---
.../bindings/power/supply/richtek,rt9471.yaml | 73 ++++++++++++++++++++++
1 file changed, 73 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
new file mode 100644
index 00000000..9286b82
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/richtek,rt9471.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT9471 3A Single Cell Switching Battery charger
+
+maintainers:
+ - Alina Yu <[email protected]>
+ - ChiYuan Huang <[email protected]>
+
+description: |
+ RT9471 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
+ portable applications. It supports USB BC1.2 port detection, current and
+ voltage regulations in both charging and boost mode.
+
+ Datasheet is available at
+ https://www.richtek.com/assets/product_file/RT9471=RT9471D/DS9471D-02.pdf
+
+properties:
+ compatible:
+ const: richtek,rt9471
+
+ reg:
+ maxItems: 1
+
+ charge-enable-gpios:
+ description: GPIO used to turn on and off charging.
+ maxItems: 1
+
+ wakeup-source: true
+
+ interrupts:
+ maxItems: 1
+
+ usb-otg-vbus-regulator:
+ type: object
+ unevaluatedProperties: false
+ $ref: /schemas/regulator/regulator.yaml#
+
+required:
+ - compatible
+ - reg
+ - wakeup-source
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ charger@53 {
+ compatible = "richtek,rt9471";
+ reg = <0x53>;
+ charge-enable-gpios = <&gpio26 1 GPIO_ACTIVE_LOW>;
+ wakeup-source;
+ interrupts-extended = <&gpio_intc 32 IRQ_TYPE_EDGE_FALLING>;
+
+ usb-otg-vbus-regulator {
+ regulator-name = "usb-otg-vbus";
+ regulator-min-microvolt = <4850000>;
+ regulator-max-microvolt = <5300000>;
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <1200000>;
+ };
+ };
+ };
--
2.7.4
On 15/08/2022 10:34, cy_huang wrote:
> From: ChiYuan Huang <[email protected]>
>
> Add bindings for the Richtek RT9471 I2C controlled battery charger.
>
> Co-developed-by: Alina Yu <[email protected]>
> Signed-off-by: Alina Yu <[email protected]>
> Signed-off-by: ChiYuan Huang <[email protected]>
> ---
> Since v2
> - Remove the properties for interrupt controller things in the binding documentation.
> - Fix dtc error for typo, it's 'regulator-name', not 'regulator-compatible'.
> - Add regulator min/max microamp to allow otg vbus current adjustable in example.
> - Specify the active-level for charge-enable-gpios in binding example.
>
> ---
> .../bindings/power/supply/richtek,rt9471.yaml | 73 ++++++++++++++++++++++
> 1 file changed, 73 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
>
> diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
> new file mode 100644
> index 00000000..9286b82
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
> @@ -0,0 +1,73 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/richtek,rt9471.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Richtek RT9471 3A Single Cell Switching Battery charger
> +
> +maintainers:
> + - Alina Yu <[email protected]>
> + - ChiYuan Huang <[email protected]>
> +
> +description: |
> + RT9471 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
> + portable applications. It supports USB BC1.2 port detection, current and
> + voltage regulations in both charging and boost mode.
> +
> + Datasheet is available at
> + https://www.richtek.com/assets/product_file/RT9471=RT9471D/DS9471D-02.pdf
> +
> +properties:
> + compatible:
> + const: richtek,rt9471
> +
> + reg:
> + maxItems: 1
> +
> + charge-enable-gpios:
> + description: GPIO used to turn on and off charging.
> + maxItems: 1
> +
> + wakeup-source: true
> +
> + interrupts:
> + maxItems: 1
> +
> + usb-otg-vbus-regulator:
> + type: object
> + unevaluatedProperties: false
> + $ref: /schemas/regulator/regulator.yaml#
ref goes before unevaluatedProperties (so one line up)
with above:
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Best regards,
Krzysztof