tree 4f7025748a5fae7449db94c480a7b63f21c5cff2
parent bf37acc3c04e7e6a391153fbfb4bfe9ed00b5ec1
author Dino Li <Dino.Li@ite.com.tw> 1656411125 +0800
committer Carles Cufí <carles.cufi@nordicsemi.no> 1656668215 +0200

it8xxx2: intc: Look for pending interrupt

The AIVECT (All Interrupt Vector Register) register provides us a quick
way to determine SOC interrupt number. But sometimes we get interrupt
number 0 from the register and caused assertion of unhandled interrupt.
To avoid the assertion, we look for all ISRs (Interrupt Status Register)
and IERs (Interrupt Enable Register) to find the highest priority pending
interrupt and return it to caller.

Signed-off-by: Dino Li <Dino.Li@ite.com.tw>