PBIAS internal regulator for SD card dual voltage i/o pads on OMAP SoCs. Required properties: - compatible: - should be "ti,pbias-dra7" for DRA7 - should be "ti,pbias-omap2" for OMAP2 - should be "ti,pbias-omap3" for OMAP3 - should be "ti,pbias-omap4" for OMAP4 - should be "ti,pbias-omap5" for OMAP5 - "ti,pbias-omap" is deprecated - reg: pbias register offset from syscon base and size of pbias register. - syscon : phandle of the system control module - regulator-name : should be pbias_mmc_omap2430 for OMAP2430, OMAP3 SoCs pbias_sim_omap3 for OMAP3 SoCs pbias_mmc_omap4 for OMAP4 SoCs pbias_mmc_omap5 for OMAP5 and DRA7 SoC Optional properties: - Any optional property defined in bindings/regulator/regulator.txt Example: pbias_regulator: pbias_regulator { compatible = "ti,pbias-omap"; reg = <0 0x4>; syscon = <&omap5_padconf_global>; pbias_mmc_reg: pbias_mmc_omap5 { regulator-name = "pbias_mmc_omap5"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3000000>; };