pinctrl学习笔记---概念介绍
系统框图dts重要概念~/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt2.1 Pinctrl client devices相当于GPIO/I2C等模块,是pinctrl客户,使用pinctrl系统的设备声明自己要使用哪些引脚的哪些功能,怎么配置2.2 Pin controller devicespinctrl复用引脚,配置引脚2.3 例子device { pinctrl-names = "act.