threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
56 lines
1.3 KiB
Plaintext
56 lines
1.3 KiB
Plaintext
* Pin configuration for TI DA850/OMAP-L138/AM18x
|
|
|
|
These SoCs have a separate controller for setting bias (internal pullup/down).
|
|
Bias can only be selected for groups rather than individual pins.
|
|
|
|
Required Properties:
|
|
|
|
- compatible: Must be "ti,da850-pupd"
|
|
- reg: Base address and length of the memory resource used by the pullup/down
|
|
controller hardware module.
|
|
|
|
The controller node also acts as a container for pin group configuration nodes.
|
|
The names of these groups are ignored.
|
|
|
|
Pin Group Node Properties:
|
|
|
|
- groups: An array of strings, each string containing the name of a pin group.
|
|
Valid names are "cp0".."cp31".
|
|
|
|
The pin configuration parameters use the generic pinconf bindings defined in
|
|
pinctrl-bindings.txt in this directory. The supported parameters are
|
|
bias-disable, bias-pull-up, bias-pull-down.
|
|
|
|
|
|
Example
|
|
-------
|
|
|
|
In common dtsi file:
|
|
|
|
pinconf: pin-controller@22c00c {
|
|
compatible = "ti,da850-pupd";
|
|
reg = <0x22c00c 0x8>;
|
|
};
|
|
|
|
In board-specific file:
|
|
|
|
&pinconf {
|
|
pinctrl-0 = <&pinconf_bias_groups>;
|
|
pinctrl-names = "default";
|
|
|
|
pinconf_bias_groups: bias-groups {
|
|
pull-up {
|
|
groups = "cp30", "cp31";
|
|
bias-pull-up;
|
|
};
|
|
pull-down {
|
|
groups = "cp29", "cp28";
|
|
bias-pull-down;
|
|
};
|
|
disable {
|
|
groups = "cp27", "cp26";
|
|
bias-disable;
|
|
};
|
|
};
|
|
};
|