[0/2] rtc: stm32: introduce new st,stm32mp25-rtc compatible

Message

Valentin Caron June 11, 2024, 4:19 p.m. UTC

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(-)