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

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Date:   Fri, 22 Apr 2022 18:23:25 +0200
From:   Alexandre TORGUE <alexandre.torgue@...s.st.com>
To:     Ahmad Fatoum <a.fatoum@...gutronix.de>, <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

Hi Ahmad,

On 4/22/22 17:37, Ahmad Fatoum wrote:
> 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.
> 

Yes, I can understand, I did this one too quickly forgetting that every 
multi_v7config users will inherit of this config.

thanks
Alex

> Cheers,
> Ahmad
> 
> 
>>   	select ARM_AMBA
>>   	select ARCH_HAS_RESET_CONTROLLER
>>   	select CLKSRC_STM32
> 
> 
> 
>