如何配置gpio4_c0为普通IO？没有配置成功
gpio4pc0:gpio4pc0 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio4_pc0>;
regulator-name = "gpio4_pc0";
regulator-always-on;
};
gpio4-pc0 {
gpio4_pc0:gpio4-pc0 {
rockchip,pins = <4 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
&saradc {
status = "disable";
vref-supply = <&vcc_1v8>;
};
