Hi Krzysztof, For log time I am trying to understanding the reset for PHY for Odroid XU4 for ethenet/emmc/sdcard. So in-order to reset the PHY I would like to attempt some thing like this below. I am trying to understand and modify the driver drivers/regulator/s2mps11.c If you thing this approach is good enough. Or their will be another approach. diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi index d562530..bed5263 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi @@ -369,9 +369,10 @@ }; ldo17_reg: LDO17 { - regulator-name = "tsp_avdd"; + regulator-name = "vdd_eth"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + samsung,ext-control-gpios = <&gpg1 1 GPIO_ACTIVE_HIGH>; regulator-always-on; }; Or is there reset core logic for the usb phy to be integrated for exynos platform. Please let me know your thought on this. Best Regards -Anand Moon -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html