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Pincontrol driver for RK805 Power management IC.
RK805 has 2 pins which can be configured as GPIO output only.
Please refer file <devicetree/bindings/pinctrl/pinctrl-bindings.txt>
for details of the common pinctrl bindings used by client devices,
including the meaning of the phrase "pin configuration node".
Optional Pinmux properties:
--------------------------
Following properties are required if default setting of pins are required
at boot.
- pinctrl-names: A pinctrl state named per <pinctrl-bindings.txt>.
- pinctrl[0...n]: Properties to contain the phandle for pinctrl states per
<pinctrl-bindings.txt>.
The pin configurations are defined as child of the pinctrl states node. Each
sub-node have following properties:
Required properties:
------------------
- #gpio-cells: Should be two. The first cell is the pin number and the
second is the GPIO flags.
- gpio-controller: Marks the device node as a GPIO controller.
- pins: List of pins. Valid values of pins properties are: gpio0, gpio1.
First 2 properties must be added in the RK805 PMIC node, documented in
Documentation/devicetree/bindings/mfd/rockchip,rk808.yaml
Optional properties:
-------------------
Following are optional properties defined as pinmux DT binding document
<pinctrl-bindings.txt>. Absence of properties will leave the configuration
on default.
function,
output-low,
output-high.
Valid values for function properties are: gpio.
Theres is also not customised properties for any GPIO.
Example:
--------
rk805: rk805@18 {
compatible = "rockchip,rk805";
...
gpio-controller;
#gpio-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&pmic_int_l>, <&rk805_default>;
rk805_default: pinmux {
gpio01 {
pins = "gpio0", "gpio1";
function = "gpio";
output-high;
};
};
};
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