tp_key0:tp_key@0x01c24800{
compatible = "allwinner,tp_key";
reg = <0x0 0x01c24800 0x0 0xf0>;
interrupts = <20>;
key_cnt = <5>;
key1 = <280 115>;
key2 = <600 114>;
key3 = <980 139>;
key4 = <1167 102>;
key5 = <1300 28>;
status = "okay";
};
使用的PA0
启动的时候已经加载成功,但是
PA0 一直3.8V?!
这是为何?
离线