linux-kernel - Re: [PATCH v3 0/9] hwrng: stm32: support STM32MP13x platforms

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Message-ID: <5bd1a669-9eab-717f-6f58-0ecb4587cf22@foss.st.com>
Date:   Mon, 9 Oct 2023 14:02:10 +0200
From:   Alexandre TORGUE <alexandre.torgue@...s.st.com>
To:     Gatien Chevallier <gatien.chevallier@...s.st.com>,
        Olivia Mackall <olivia@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
CC:     Lionel Debieve <lionel.debieve@...s.st.com>,
        <linux-crypto@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/9] hwrng: stm32: support STM32MP13x platforms

Hi

On 9/21/23 10:02, Gatien Chevallier wrote:
> The STM32MP13x platforms have a RNG hardware block that supports
> customization, a conditional reset sequences that allows to
> recover from certain situations and a configuration locking
> mechanism.
> 
> This series adds support for the mentionned features. Note that
> the hardware RNG can and should be managed in the secure world
> for this platform, hence the rng not being default enabled on
> the STM32MP135F-DK board.
> 
> Changes in V2:
> 	- Use pm_ptr() and add __maybe_unused on PM API
> 	- Correct bug using WARN_ON
> 
> Changes in V3:
> 	- Squash of bindings patches
> 	- st,rng-lock-conf property declaration rework
> 	- Fix stm32_rng_pm_ops declaration in patch [5/9]
> 
> Gatien Chevallier (9):
>    dt-bindings: rng: introduce new compatible for STM32MP13x
>    hwrng: stm32 - use devm_platform_get_and_ioremap_resource() API
>    hwrng: stm32 - implement STM32MP13x support
>    hwrng: stm32 - implement error concealment
>    hwrng: stm32 - rework error handling in stm32_rng_read()
>    hwrng: stm32 - restrain RNG noise source clock
>    hwrng: stm32 - support RNG configuration locking mechanism
>    hwrng: stm32 - rework power management sequences
>    ARM: dts: stm32: add RNG node for STM32MP13x platforms
> 
>   .../devicetree/bindings/rng/st,stm32-rng.yaml |  20 +-
>   arch/arm/boot/dts/st/stm32mp131.dtsi          |   8 +
>   drivers/char/hw_random/stm32-rng.c            | 511 +++++++++++++++---
>   3 files changed, 455 insertions(+), 84 deletions(-)
> 

Patch[9] applied on stm32-next.

thanks
alex