irqchip/stm32-exti: Skip secure events

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Secure OS can reserve some EXTI events, marking them as "secure" by setting
the corresponding bit in register SECCFGR (aka TZENR).  These events cannot
be used by Linux.

Read the list of reserved events and check it during interrupt domain
allocation.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240415134926.1254428-6-antonio.borneo@foss.st.com

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Antonio Borneo 2024-04-15 15:49:20 +02:00 • committed by Thomas Gleixner

parent 06d7e914ca

commit c00a4cb15a

1 changed files with 21 additions and 0 deletions

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drivers/irqchip/irq-stm32-exti.c

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