From: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
Add bindings for the Richtek RT9467 battery charger.
Co-developed-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx>
Signed-off-by: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
---
v2
- Revise the definition of 'enable-gpios'
- Revise the node name to generic name in the example
('rt9467@5b' --> 'charger@5b')
- Revise the example usage of 'charge-enable-gpios' with GPIO flags
---
.../power/supply/richtek,rt9467-charger.yaml | 82 ++++++++++++++++++++++
1 file changed, 82 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9467-charger.yaml
diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9467-charger.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9467-charger.yaml
new file mode 100644
index 0000000..92c5706
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9467-charger.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/richtek,rt9467-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT9467 Switching Battery Charger with Power Path Management
+
+maintainers:
+ - ChiYuan Huang <cy_huang@xxxxxxxxxxx>
+ - ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>
+
+description: |
+ RT9467 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
+ portable applications. It integrates a synchronous PWM controller, power
+ MOSFETs, input current sensing and regulation, high-accuracy voltage
+ regulation, and charge termination. The charge current is regulated through
+ integrated sensing resistors.
+
+ The RT9467 also features USB On-The-Go (OTG) support. It also integrates
+ D+/D- pin for USB host/charging port detection.
+
+ Datasheet is available at
+ https://www.richtek.com/assets/product_file/RT9467/DS9467-01.pdf
+
+properties:
+ compatible:
+ const: richtek,rt9467-charger
+
+ reg:
+ maxItems: 1
+
+ wakeup-source: true
+
+ interrupts:
+ maxItems: 1
+
+ charge-enable-gpios:
+ description: GPIO is used to turn on and off charging.
+ maxItems: 1
+
+ usb-otg-vbus-regulator:
+ type: object
+ description: OTG boost regulator.
+ unevaluatedProperties: false
+ $ref: /schemas/regulator/regulator.yaml#
+
+ properties:
+ enable-gpios: true
+
+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@5b {
+ compatible = "richtek,rt9467-charger";
+ reg = <0x5b>;
+ wakeup-source;
+ interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>;
+ charge-enable-gpios = <&gpio26 1 GPIO_ACTIVE_LOW>;
+
+ rt9467_otg_vbus: usb-otg-vbus-regulator {
+ regulator-name = "rt9467-usb-otg-vbus";
+ regulator-min-microvolt = <4425000>;
+ regulator-max-microvolt = <5825000>;
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <3000000>;
+ };
+ };
+ };
--
2.7.4
