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Date:   Fri, 22 Apr 2022 18:32:59 +0200
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Subject: Re: [PATCH 6/8] ARM: dts: stm32: enable optee firmware and SCMI
 support on STM32MP15
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To:     Alexandre Torgue <alexandre.torgue@foss.st.com>, arnd@arndb.de,
        robh+dt@kernel.org, Krzysztof Kozlowski <krzk+dt@kernel.org>,
        soc@kernel.org, Stephen Boyd <sboyd@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>
Cc:     linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-kernel@vger.kernel.org,
        Ahmad Fatoum <a.fatoum@pengutronix.de>, etienne.carriere@st.com
References: <20220422150952.20587-1-alexandre.torgue@foss.st.com>
 <20220422150952.20587-7-alexandre.torgue@foss.st.com>
From:   Marek Vasut <marex@denx.de>
In-Reply-To: <20220422150952.20587-7-alexandre.torgue@foss.st.com>
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On 4/22/22 17:09, Alexandre Torgue wrote:
> Enable optee and SCMI clocks/reset protocols support.
> 
> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
> 
> 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.