Re: [Linux-stm32] [PATCH v6 1/3] ARM: dts: stm32mp13: fix compatible for BSEC

From: Ahmad Fatoum
Date: Thu Jan 19 2023 - 07:06:39 EST


On 18.01.23 18:29, Patrick Delaunay wrote:
> Use the correct compatible for stm32mp13 support.
>
> The BSEC driver for STM32MP15x is not compatible with STM32MP13x. For
> example the proprietary's smc STM32_SMC_BSEC is not supported in
> STM32MP13x OP-TEE, it is replaced by SM32MP BSEC Pseudo Trusted
> Application in OP-TEE to access to the secured IP BSEC on STM32MP13X SoC.
>
> The correct compatible is already used in U-Boot and in upstream is in
> progress for OP-TEE device tree.
>
> As the SoC STM32MP13X is not yet official and it is not available
> outside STMicroelectronics, it is the good time to break the DTS
> compatibility and to correct the error done in the introduction of
> STM32MP131.
>
> Signed-off-by: Patrick Delaunay <patrick.delaunay@xxxxxxxxxxx>

Reviewed-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>

> ---
> This patch is already sent separately in:
> https://lore.kernel.org/all/20221017134437.1.I167a5efc1f8777cce14518c6fa38400ac684de3e@changeid/
> https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=685815
>
> I create a serie for more efficient review.
>
> Patrick.
>
> (no changes since v1)
>
> Changes in v1:
> - update commit message to indicate DTS break reason.
>
> arch/arm/boot/dts/stm32mp131.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/stm32mp131.dtsi b/arch/arm/boot/dts/stm32mp131.dtsi
> index accc3824f7e9..0b79380cc627 100644
> --- a/arch/arm/boot/dts/stm32mp131.dtsi
> +++ b/arch/arm/boot/dts/stm32mp131.dtsi
> @@ -520,7 +520,7 @@ rtc: rtc@5c004000 {
> };
>
> bsec: efuse@5c005000 {
> - compatible = "st,stm32mp15-bsec";
> + compatible = "st,stm32mp13-bsec";
> reg = <0x5c005000 0x400>;
> #address-cells = <1>;
> #size-cells = <1>;

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