Re: [PATCH v2] ARM: dts: sun8i: Open FETA40i-C regulator aldo1

From: Jernej Škrabec
Date: Tue Jan 23 2024 - 15:59:10 EST


Dne torek, 26. december 2023 ob 09:40:05 CET je Fuyao Kashizuku napisal(a):
> The USB PHY in the Allwinner R40 SoC seems to rely on voltage on the
> VCC-TVIN/OUT supply pins for proper operation, on top of its own supply
> voltage on VCC-USB. Without a 3.3V voltage supplied to VCC-TV*, USB
> operation becomes unstable and can result in disconnects.
>
> The Forlinx FETA40i-C SoM connects both the VCC-TVOUT and VCC-TVIN pins
> to the ALDO1 rail of the PMIC, so we need to enable that rail for USB
> operation. Since there is no supply property in the DT bindings for
> the USB core, we need to always enable the regulator.
>
> This fixes unstable USB operation on boards using the Forlinx FETA40i-C
> module.
>
> Signed-off-by: Fuyao Kashizuku <fuyao@xxxxxxxxxx>

Merged, thanks!

Best regards,
Jernej