Hi,
Looking at the device tree for SabreSD boards, I notice the following snippet:
regulators {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
reg_usb_otg_vbus: regulator@0 {
compatible = "regulator-fixed";
reg = <0>;
regulator-name = "usb_otg_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpio3 22 0>;
enable-active-high;
vin-supply = <&swbst_reg>;
};
reg_usb_h1_vbus: regulator@1 {
compatible = "regulator-fixed";
reg = <1>;
regulator-name = "usb_h1_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpio1 29 0>;
enable-active-high;
vin-supply = <&swbst_reg>;
};
reg_audio: regulator@2 {
compatible = "regulator-fixed";
reg = <2>;
regulator-name = "wm8962-supply";
gpio = <&gpio4 10 0>;
enable-active-high;
};
What is the above setting used for? I see that it is related to regulator settings but am unable to figure out what software module/driver reads these settings.
If anybody can give me some pointers, I would appreciate.
Thanks.
