linux-kernel - Re: [PATCH 0/3] nvmem: stm32: add OP-TEE support for STM32MP13x

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Message-ID: <4cec819c-abd9-a9f8-5874-8394b6902bdb@linaro.org>
Date:   Mon, 31 Oct 2022 17:42:39 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Patrick Delaunay <patrick.delaunay@...s.st.com>,
        Alexandre TORGUE <alexandre.torgue@...s.st.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>
Cc:     Etienne CARRIERE <etienne.carriere@...aro.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH 0/3] nvmem: stm32: add OP-TEE support for STM32MP13x



On 28/10/2022 15:52, Patrick Delaunay wrote:
> 
> This serie update the NVMEM BSEC driver to be compatible with STM32MP13x
> SoC and the trusted application STM32MP BSEC in OP-TEE
> 
> This serie solve issue in initial support of STM32MP131
> (using BSEC STM32MP15 compatible) and so it break the DTS compatible.
> 
> I create this serie for more efficient review.
> 
> The 2 first patches of this series are re-sent of patches already sent
> 
> 1- "dt-bindings: nvmem: add new stm32mp13 compatible for stm32-romem"
>      https://lore.kernel.org/all/20221014172324.1.Ifc1812116ff63f5501f3edd155d3cf5c0ecc846c@changeid/
>      https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=685403
> 
> 2- "ARM: dts: stm32mp13: fix compatible for BSEC"
>      https://lore.kernel.org/all/20221017134437.1.I167a5efc1f8777cce14518c6fa38400ac684de3e@changeid/
>      https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=685815
> 
> This DTS break is acceptable as
> - the STM32MP13x SoC is not yet available outside STMicroelectronics
>    (not official)
> - the same patch is already integrated or modifications are in progress in
>    the other users (arm-trusted-firmware/TF-A, OP-TEE and U-Boot) of
>    stm32mp131 device tree.
> 
> It is the good time to correct this issue before the real availability of
> the SoC and before full support of SoC in Linux kernel.
> 
> This last patch on NVMEM STM32 ROMEM driver in depend on the preliminary
> patch for the driver:
> 
>    "nvmem: stm32: move STM32MP15_BSEC_NUM_LOWER in config"
>    https://lore.kernel.org/all/20221017174953.v2.1.I95e71328dd654723bd4c57206bd008ff81c726bb@changeid/
> 
> present in the serie
> 
>    "nvmem: stm32: several minor improvements"
>    https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=685886
> 
> Regards
> 
> Patrick
> 
> Changes in v1:
> - update commit message to indicate DTS break reason.
> 
> Patrick Delaunay (3):
>    dt-bindings: nvmem: add new stm32mp13 compatible for stm32-romem
>    ARM: dts: stm32mp13: fix compatible for BSEC
>    nvmem: stm32: add OP-TEE support for STM32MP13x

Applied 1/3 and 3/3 thanks,

dts changes need to go via the dts maintainer..

--srini
> 
>   .../bindings/nvmem/st,stm32-romem.yaml        |   1 +
>   arch/arm/boot/dts/stm32mp131.dtsi             |   2 +-
>   drivers/nvmem/stm32-romem.c                   | 450 +++++++++++++++++-
>   3 files changed, 448 insertions(+), 5 deletions(-)
>