Subject: Re: [PATCH] arm64: dts: rockchip: Add RK3562 serial aliases

From: Heiko Stuebner <[email-masked]>
Date: Mon, 30 Mar 2026 10:27:52 +0200

Am Samstag, 28. März 2026, 16:08:57 Mitteleuropäische Sommerzeit schrieb Krzysztof Kozlowski:
> On 28/03/2026 14:05, 谢致邦 (XIE Zhibang) wrote:
> > This fixes the stdout-path in rk3562-evb2-v10.dts.
> > 
> > Fixes: ceb6ef1ea900 ("arm64: dts: rockchip: Add RK3562 evb2 devicetree")
> > Signed-off-by: 谢致邦 (XIE Zhibang) <[email-masked]>
> > ---
> >  arch/arm64/boot/dts/rockchip/rk3562.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3562.dtsi b/arch/arm64/boot/dts/rockchip/rk3562.dtsi
> > index e4816aa3dae0..14e74e8ac7df 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3562.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk3562.dtsi
> > @@ -26,6 +26,16 @@ aliases {
> >  		gpio2 = &gpio2;
> >  		gpio3 = &gpio3;
> >  		gpio4 = &gpio4;
> > +		serial0 = &uart0;
> > +		serial1 = &uart1;
> > +		serial2 = &uart2;
> > +		serial3 = &uart3;
> > +		serial4 = &uart4;
> > +		serial5 = &uart5;
> > +		serial6 = &uart6;
> > +		serial7 = &uart7;
> > +		serial8 = &uart8;
> > +		serial9 = &uart9;
> 
> UART aliases are properties of the boards, not SoC.

We had this argument a lot of times for those numbered aliases
where everything on all soc documentation, schematics and also
user documentation for individual boards, generally references
exactly those numbers :-)

But fiiiiiine, if it comes up all the time ...

I really hope, you're okay with intermitend ordering though:

	serial0 = &uart0;
	serial2 = &uart2;
	serial5 = &uart5;

because otherwise, this would cause pure chaos everywhere.

Because as I said this serial number is used on board-schematics,
board-user-level documentation, SoC documentation, even silcscreen
on boards ... so everywhere.

Similar for all the numbered busses ofthe SoCs.

Heiko