++ vcc_io_sdio: sdmmcio-regulator {
++ compatible = "regulator-gpio";
++ enable-active-high;
++ gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
++ pinctrl-0 = <&sdio_vcc_pin>;
++ pinctrl-names = "default";
++ regulator-name = "vcc_io_sdio";
++ regulator-always-on;
++ regulator-min-microvolt = <1800000>;
++ regulator-max-microvolt = <3300000>;
++ regulator-settling-time-us = <5000>;
++ regulator-type = "voltage";
++ startup-delay-us = <2000>;
++ states = <1800000 0x1
++ 3300000 0x0>;
++ vin-supply = <&vcc_io_33>;
++ };