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-rw-r--r--kernel/Documentation/devicetree/bindings/mfd/rk808.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/Documentation/devicetree/bindings/mfd/rk808.txt b/kernel/Documentation/devicetree/bindings/mfd/rk808.txt
index 9e6e2592e..4ca6aab42 100644
--- a/kernel/Documentation/devicetree/bindings/mfd/rk808.txt
+++ b/kernel/Documentation/devicetree/bindings/mfd/rk808.txt
@@ -24,6 +24,10 @@ Optional properties:
- vcc10-supply: The input supply for LDO_REG6
- vcc11-supply: The input supply for LDO_REG8
- vcc12-supply: The input supply for SWITCH_REG2
+- dvs-gpios: buck1/2 can be controlled by gpio dvs, this is GPIO specifiers
+ for 2 host gpio's used for dvs. The format of the gpio specifier depends in
+ the gpio controller. If DVS GPIOs aren't present, voltage changes will happen
+ very quickly with no slow ramp time.
Regulators: All the regulators of RK808 to be instantiated shall be
listed in a child node named 'regulators'. Each regulator is represented
@@ -55,7 +59,9 @@ Example:
interrupt-parent = <&gpio0>;
interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
- pinctrl-0 = <&pmic_int>;
+ pinctrl-0 = <&pmic_int &dvs_1 &dvs_2>;
+ dvs-gpios = <&gpio7 11 GPIO_ACTIVE_HIGH>,
+ <&gpio7 15 GPIO_ACTIVE_HIGH>;
reg = <0x1b>;
rockchip,system-power-controller;
wakeup-source;