Re: [PATCH] arm64: dts: qcom: sc8280xp: use refgen regulator for DSI

[Pengyu Luo]

On Sat, Feb 28, 2026 at 9:13 PM Dmitry Baryshkov
<dmitry.baryshkov@xxxxxxxxxxxxxxxx> wrote:
>
> On Sat, Feb 28, 2026 at 08:54:30PM +0800, Pengyu Luo wrote:
> > Use it for the DSI controllers, since DSI nodes have been added.
> >
> > Signed-off-by: Pengyu Luo <mitltlatltl@xxxxxxxxx>
> > ---
> > This patch depends on the below series:
> > https://lore.kernel.org/linux-arm-msm/20260228101907.18043-1-mitltlatltl@xxxxxxxxx/
>
> Why was it not squashed into that series? I'd assume that DSI nodes are
> incomplete and are working "by luck" without the refgen supplies.
>

Today, I did a casual read. I found the register(0x8900000 + 0x80) to
enable refgen is always 0 on windows. The refgen driver may be not
compatible with sc8280xp or the DT configuration is wrong.

Best wishes,
Pengyu