Bindings documentation for the AXP20x driver. In this file also two
sub-nodes (PEK and regulators) are documented.
Signed-off-by: Carlo Caione <carlo@xxxxxxxxxx>
---
Documentation/devicetree/bindings/mfd/axp20x.txt | 93 ++++++++++++++++++++++++
1 file changed, 93 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/axp20x.txt
diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt
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+* axp20x device tree bindings
+
+The axp20x family current members :-
+axp202 (X-Powers)
+axp209 (X-Powers)
+
+Required properties:
+- compatible : Should be "x-powers,axp202" or "x-powers,axp209"
+- interrupt-controller : axp20x has its own internal IRQs
+- #interrupt-cells : Should be set to 1
+- interrupt-parent : The parent interrupt controller
+- interrupts : Interrupt specifiers for interrupt sources
+- reg : The I2C slave address for the AXP chip
+- axp,system-power-controller : Telling whether or not this pmic is
+ controlling the system power
+
+Sub-nodes:
+* regulators : Contain the regulator nodes. The regulators are bound using
+ their name as listed here: dcdc2, dcdc3, ldo1, ldo2, ldo3,
+ ldo4, ldo5.
+ The bindings details of individual regulator device can be found in:
+ Documentation/devicetree/bindings/regulator/regulator.txt with the
+ exception of:
+
+ - dcdc-freq : defines the work frequency of DC-DC in KHz
+ (range: 750-1875)
+ - dcdc-workmode : 1 for PWM mode, 0 for AUTO mode
+
+* axp20x-pek : Power Enable Key
+ - compatible : should be "x-powers,axp20x-pek"
+
+Example:
+
+axp: axp20x@34 {
+ reg = <0x34>;
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 8>;
+
+ axp,system-power-controller;
+
+ compatible = "x-powers,axp209";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ axp20x-pek {
+ compatible = "x-powers,axp20x-pek";
+ };
+
+ regulators {
+ dcdc-freq = "8";
+
+ axp_dcdc2: dcdc2 {
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <2275000>;
+ dcdc-workmode = <0>;
+ regulator-always-on;
+ };
+
+ axp_dcdc3: dcdc3 {
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <3500000>;
+ dcdc-workmode = <0>;
+ regulator-always-on;
+ };
+
+ axp_ldo1: ldo1 {
+ regulator-min-microvolt = <1300000>;
+ regulator-max-microvolt = <1300000>;
+ };
+
+ axp_ldo2: ldo2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ axp_ldo3: ldo3 {
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <3500000>;
+ };
+
+ axp_ldo4: ldo4 {
+ regulator-min-microvolt = <1250000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ axp_ldo5: ldo5 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+};
+
--
1.8.3.2
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