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From:   Etienne CARRIERE <etienne.carriere@st.com>
To:     Marek Vasut <marex@denx.de>,
        Alexandre TORGUE - foss <alexandre.torgue@foss.st.com>,
        "arnd@arndb.de" <arnd@arndb.de>,
        "robh+dt@kernel.org" <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        "soc@kernel.org" <soc@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>
CC:     "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "linux-stm32@st-md-mailman.stormreply.com" 
        <linux-stm32@st-md-mailman.stormreply.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH 6/8] ARM: dts: stm32: enable optee firmware and SCMI
 support on STM32MP15
Thread-Topic: [PATCH 6/8] ARM: dts: stm32: enable optee firmware and SCMI
 support on STM32MP15
Thread-Index: AQHYVlstOtyoewSfQ0uuhrGrUwLfTaz8IIuAgARMqxY=
Date:   Mon, 25 Apr 2022 10:19:40 +0000
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References: <20220422150952.20587-1-alexandre.torgue@foss.st.com>
 <20220422150952.20587-7-alexandre.torgue@foss.st.com>
 <174bea56-3e99-e01c-4133-f1350d34448d@denx.de>
In-Reply-To: <174bea56-3e99-e01c-4133-f1350d34448d@denx.de>
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Hello Marek,=0A=
=0A=
> From: Marek Vasut <marex@denx.de>=0A=
> =0A=
> > On 4/22/22 17:09, Alexandre Torgue wrote:=0A=
> > Enable optee and SCMI clocks/reset protocols support.=0A=
> > =0A=
> > Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>=0A=
> > =0A=
> > diff --git a/arch/arm/boot/dts/stm32mp151.dtsi=0A=
> > b/arch/arm/boot/dts/stm32mp151.dtsi=0A=
> > index 7fdc324b3cf9..1b2fd3426a81 100644=0A=
> > --- a/arch/arm/boot/dts/stm32mp151.dtsi=0A=
> > +++ b/arch/arm/boot/dts/stm32mp151.dtsi=0A=
> > @@ -115,6 +115,33 @@=0A=
> >=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 status =3D "disabled";=0A=
> >=A0=A0=A0=A0=A0=A0=A0 };=0A=
> >=A0=A0 =0A=
> > +=A0=A0=A0=A0 firmware {=0A=
> > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 optee: optee {=0A=
> > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 compatibl=
e =3D "linaro,optee-tz";=0A=
> > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 method =
=3D "smc";=0A=
> > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 status =
=3D "disabled";=0A=
> > +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 };=0A=
> =0A=
> Doesn't this TEE node get automatically generated and patched into DT by =
=0A=
> the TEE ? I think OpTee-OS does that.=0A=
=0A=
OP-TEE OS does that if it gets passed the DT from early boot stage which is=
 not always the case.=0A=
=0A=
Etienne=0A=
=0A=