Subject: Re: [PATCH v6 10/11] ARM: dts: stm32: add ETZPC as a system bus for STM32MP15x boards

From: Rob Herring <[email-masked]>
Date: Tue, 10 Oct 2023 13:42:12 -0500

On Tue, Oct 10, 2023 at 02:57:18PM +0200, Gatien Chevallier wrote:
> ETZPC is a firewall controller. Put all peripherals filtered by the
> ETZPC as ETZPC subnodes and reference ETZPC as an
> access-control-provider.
> 
> For more information on which peripheral is securable or supports MCU
> isolation, please read the STM32MP15 reference manual.
> 
> Signed-off-by: Gatien Chevallier <[email-masked]>
> ---
> 
> Changes in V6:
>     	- Renamed access-controller to access-controllers
>     	- Removal of access-control-provider property
> 
> Changes in V5:
>     	- Renamed feature-domain* to access-control*
> 
>  arch/arm/boot/dts/st/stm32mp151.dtsi  | 2756 +++++++++++++------------
>  arch/arm/boot/dts/st/stm32mp153.dtsi  |   52 +-
>  arch/arm/boot/dts/st/stm32mp15xc.dtsi |   19 +-
>  3 files changed, 1450 insertions(+), 1377 deletions(-)

This is not reviewable. Change the indentation and any non-functional 
change in one patch and then actual changes in another.

This is also an ABI break. Though I'm not sure it's avoidable. All the 
devices below the ETZPC node won't probe on existing kernel. A 
simple-bus fallback for ETZPC node should solve that. 

Rob