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Message-ID: <20240611161958.469209-1-valentin.caron@foss.st.com>
Date: Tue, 11 Jun 2024 18:19:56 +0200
From: Valentin Caron <valentin.caron@...s.st.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alexandre Torgue
	<alexandre.torgue@...s.st.com>
CC: <linux-rtc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        Valentin Caron <valentin.caron@...s.st.com>
Subject: [PATCH 0/2] rtc: stm32: introduce new st,stm32mp25-rtc compatible

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

Valentin Caron (2):
  dt-bindings: rtc: stm32: introduce new st,stm32mp25-rtc compatible
  rtc: stm32: add new st,stm32mp25-rtc compatible and check RIF
    configuration

 .../devicetree/bindings/rtc/st,stm32-rtc.yaml |  5 +-
 drivers/rtc/rtc-stm32.c                       | 78 +++++++++++++++++++
 2 files changed, 82 insertions(+), 1 deletion(-)

-- 
2.25.1


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