Re: [PATCH 6/8] ARM: dts: stm32: enable optee firmware and SCMI support on STM32MP15

[Etienne CARRIERE]

Hello Marek,

> From: Marek Vasut <marex@xxxxxxx>
> 
> > On 4/22/22 17:09, Alexandre Torgue wrote:
> > Enable optee and SCMI clocks/reset protocols support.
> > 
> > Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
> > 
> > diff --git a/arch/arm/boot/dts/stm32mp151.dtsi
> > b/arch/arm/boot/dts/stm32mp151.dtsi
> > index 7fdc324b3cf9..1b2fd3426a81 100644
> > --- a/arch/arm/boot/dts/stm32mp151.dtsi
> > +++ b/arch/arm/boot/dts/stm32mp151.dtsi
> > @@ -115,6 +115,33 @@
> >                status = "disabled";
> >        };
> >   
> > +     firmware {
> > +             optee: optee {
> > +                     compatible = "linaro,optee-tz";
> > +                     method = "smc";
> > +                     status = "disabled";
> > +             };
> 
> Doesn't this TEE node get automatically generated and patched into DT by 
> the TEE ? I think OpTee-OS does that.

OP-TEE OS does that if it gets passed the DT from early boot stage which is not always the case.

Etienne