On Mon, May 09, 2022 at 05:24:26PM +0200, LABBE Corentin wrote:

Le Mon, May 09, 2022 at 05:19:16PM +0200, Andrew Lunn a écrit :

quoted

I'm trying to understand the differences between the two different
regulators. If you tell me what the PHY is, i might be able to find
the data sheet, and then understand why two regulators are needed and
if one needs to be controlled by the PHY driver, not the MDIO bus
driver.

The schematic for the board is https://linux-sunxi.org/images/5/50/OrangePi_3_Schematics_v1.5.pdf
Which show a RTL8211E.

Most hardware will want all the regulators for the device turned on or
off en masse (possibly in a specific sequence) - it's rare for devices
to support only having some of their supplies enabled for extended
periods, I'd be surprised if something like a PHY did that.