linux-kernel - Re: [PATCH v2 1/2] dt-bindings: rtc: stm32: introduce new st,stm32mp25-rtc compatible

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Message-ID: <172054263823.3749406.8767907445542011155.robh@kernel.org>
Date: Tue, 9 Jul 2024 10:30:39 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Valentin Caron <valentin.caron@...s.st.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	Conor Dooley <conor+dt@...nel.org>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Alexandre Torgue <alexandre.torgue@...s.st.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: rtc: stm32: introduce new
 st,stm32mp25-rtc compatible


On Mon, 08 Jul 2024 17:34:33 +0200, Valentin Caron wrote:
> Introduce new st,stm32mp25-rtc compatible. It is based on st,stm32mp1-rtc.
> 
> Difference is that stm32mp25 soc implements a triple protection on RTC
> registers:
> - Secure bit based protection
> - Privileged context based protection
> - Compartment ID filtering based protection
> This driver will now check theses configurations before probing to avoid
> exceptions and fake reads on register.
> 
> Link: https://www.st.com/resource/en/reference_manual/rm0457-stm32mp25xx-advanced-armbased-3264bit-mpus-stmicroelectronics.pdf#page=4081
> Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
> ---
>  Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>