1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/pinctrl/pinctrl.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Pin controller device 8 9maintainers: 10 - Linus Walleij <linus.walleij@linaro.org> 11 - Rafał Miłecki <rafal@milecki.pl> 12 13description: | 14 Pin controller devices should contain the pin configuration nodes that client 15 devices reference. 16 17 The contents of each of those pin configuration child nodes is defined 18 entirely by the binding for the individual pin controller device. There 19 exists no common standard for this content. The pinctrl framework only 20 provides generic helper bindings that the pin controller driver can use. 21 22 The pin configuration nodes need not be direct children of the pin controller 23 device; they may be grandchildren, for example. Whether this is legal, and 24 whether there is any interaction between the child and intermediate parent 25 nodes, is again defined entirely by the binding for the individual pin 26 controller device. 27 28properties: 29 $nodename: 30 pattern: "^(pinctrl|pinmux)(@[0-9a-f]+)?$" 31 32 "#pinctrl-cells": 33 description: > 34 Number of pin control cells in addition to the index within the pin 35 controller device instance. 36 37 pinctrl-use-default: 38 type: boolean 39 description: > 40 Indicates that the OS can use the boot default pin configuration. This 41 allows using an OS that does not have a driver for the pin controller. 42 This property can be set either globally for the pin controller or in 43 child nodes for individual pin group control. 44 45additionalProperties: true 46