mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 21:02:19 +00:00
4da722ca19
Pretty much any node can have a status property, so it doesn't need to be in examples. Converted with the following command and removed examples with SoC and board specific splits: git grep -l -E 'status.*=.*' Documentation/devicetree/ | xargs sed -i -E '/\sstatus.*=.*"(disabled|ok|okay)/d' Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Rob Herring <robh@kernel.org>
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
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";
|
|
};
|