linux-kernel - Re: [PATCH 5/8] ARM: stm32: select OPTEE on MPU family

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Date:   Fri, 22 Apr 2022 17:37:10 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Alexandre Torgue <alexandre.torgue@...s.st.com>, arnd@...db.de,
        robh+dt@...nel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        soc@...nel.org, Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-kernel@...r.kernel.org, Marek Vasut <marex@...x.de>,
        etienne.carriere@...com,
        Pengutronix Kernel Team <kernel@...gutronix.de>
Subject: Re: [PATCH 5/8] ARM: stm32: select OPTEE on MPU family

Hello Alex,

On 22.04.22 17:09, Alexandre Torgue wrote:
> Select CONFIG_OPTEE for STM32MP15 and STM32MP13 by default. Final
> activation will done thanks to device tree.
> 
> Signed-off-by: Alexandre Torgue <alexandre.torgue@...s.st.com>
> 
> diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig
> index 98145031586f..b322cf2a136f 100644
> --- a/arch/arm/mach-stm32/Kconfig
> +++ b/arch/arm/mach-stm32/Kconfig
> @@ -6,6 +6,8 @@ menuconfig ARCH_STM32
>  	select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
>  	select ARM_GIC if ARCH_MULTI_V7
>  	select ARM_PSCI if ARCH_MULTI_V7
> +	select TEE if ARCH_MULTI_V7
> +	select OPTEE if ARCH_MULTI_V7

Users may want to use OPTEE as a module without it being a SCMI provider
or not use OPTEE at all. I'd prefer you drop this patch and leave it
to users to configure their kernel appropriately.

Cheers,
Ahmad


>  	select ARM_AMBA
>  	select ARCH_HAS_RESET_CONTROLLER
>  	select CLKSRC_STM32




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