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-Device tree binding for NVIDIA Tegra DPAUX pad controller
-========================================================
-
-The Tegra Display Port Auxiliary (DPAUX) pad controller manages two pins
-which can be assigned to either the DPAUX channel or to an I2C
-controller.
-
-This document defines the device-specific binding for the DPAUX pad
-controller. Refer to pinctrl-bindings.txt in this directory for generic
-information about pin controller device tree bindings. Please refer to
-the binding document ../display/tegra/nvidia,tegra20-host1x.txt for more
-details on the DPAUX binding.
-
-Pin muxing:
------------
-
-Child nodes contain the pinmux configurations following the conventions
-from the pinctrl-bindings.txt document.
-
-Since only three configurations are possible, only three child nodes are
-needed to describe the pin mux'ing options for the DPAUX pads.
-Furthermore, given that the pad functions are only applicable to a
-single set of pads, the child nodes only need to describe the pad group
-the functions are being applied to rather than the individual pads.
-
-Required properties:
-- groups: Must be "dpaux-io"
-- function: Must be either "aux", "i2c" or "off".
-
-Example:
---------
-
- dpaux@545c0000 {
- ...
-
- state_dpaux_aux: pinmux-aux {
- groups = "dpaux-io";
- function = "aux";
- };
-
- state_dpaux_i2c: pinmux-i2c {
- groups = "dpaux-io";
- function = "i2c";
- };
-
- state_dpaux_off: pinmux-off {
- groups = "dpaux-io";
- function = "off";
- };
- };
-
- ...
-
- i2c@7000d100 {
- ...
- pinctrl-0 = <&state_dpaux_i2c>;
- pinctrl-1 = <&state_dpaux_off>;
- pinctrl-names = "default", "idle";
- };