From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Add a DT binding document for max77650 ultra-low power PMIC. This
describes the core mfd device and the GPIO module.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Acked-for-MFD-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
.../devicetree/bindings/mfd/max77650.txt | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/max77650.txt
diff --git a/Documentation/devicetree/bindings/mfd/max77650.txt b/Documentation/devicetree/bindings/mfd/max77650.txt
new file mode 100644
index 000000000000..b529d8d19335
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/max77650.txt
@@ -0,0 +1,46 @@
+MAX77650 ultra low-power PMIC from Maxim Integrated.
+
+Required properties:
+-------------------
+- compatible: Must be "maxim,max77650"
+- reg: I2C device address.
+- interrupts: The interrupt on the parent the controller is
+ connected to.
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Must be <2>.
+
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Must be <2>. The first cell is the pin number and
+ the second cell is used to specify the gpio active
+ state.
+
+Optional properties:
+--------------------
+gpio-line-names: Single string containing the name of the GPIO line.
+
+The GPIO-controller module is represented as part of the top-level PMIC
+node. The device exposes a single GPIO line.
+
+For device-tree bindings of other sub-modules (regulator, power supply,
+LEDs and onkey) refer to the binding documents under the respective
+sub-system directories.
+
+For more details on GPIO bindings, please refer to the generic GPIO DT
+binding document <devicetree/bindings/gpio/gpio.txt>.
+
+Example:
+--------
+
+ pmic@48 {
+ compatible = "maxim,max77650";
+ reg = <0x48>;
+
+ interrupt-controller;
+ interrupt-parent = <&gpio2>;
+ #interrupt-cells = <2>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "max77650-charger";
+ };
--
2.21.0
