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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-04-23 11:04:41 +0200
committerLee Jones <lee.jones@linaro.org>2019-05-08 12:04:58 +0100
commit13a22f73319c75511bd6b49cc77afb15fed0a91e (patch)
tree99e73187b7fc489215fef8886222044bc2c76ee8
parente93c9c99a629c61837d5a7fc2120cd2b6c70dbdd (diff)
dt-bindings: mfd: Add DT bindings for max77650
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@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/mfd/max77650.txt46
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/max77650.txt b/Documentation/devicetree/bindings/mfd/max77650.txt
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+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";
+ };