From 5b0bb001d37175324e613488ac6a8e981d473c11 Mon Sep 17 00:00:00 2001 From: Joseph Chen Date: Mon, 21 Aug 2017 03:28:39 +0200 Subject: pinctrl: dt-bindings: Add bindings for Rockchip RK805 PMIC Signed-off-by: Joseph Chen Acked-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Heiko Stuebner Signed-off-by: Lee Jones --- .../devicetree/bindings/pinctrl/pinctrl-rk805.txt | 63 ++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt (limited to 'Documentation/devicetree/bindings/pinctrl') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt new file mode 100644 index 000000000000..eee3dc260934 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-rk805.txt @@ -0,0 +1,63 @@ +Pincontrol driver for RK805 Power management IC. + +RK805 has 2 pins which can be configured as GPIO output only. + +Please refer file +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[0...n]: Properties to contain the phandle for pinctrl states per + . + +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/rk808.txt + +Optional properties: +------------------- +Following are optional properties defined as pinmux DT binding document +. 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; + }; + }; +}; -- cgit v1.2.3-59-g8ed1b