[PATCH v2 0/2] Make STM32 interrupt controller use hwspinlock

From: Benjamin Gaignard
Date: Fri Dec 14 2018 - 10:11:38 EST

From: Benjamin Gaignard <benjamin.gaignard@xxxxxx>

This series allow to protect STM32 interrupt controller configuration registers
with a hwspinlock to avoid conflicting accesses between processors.

version 2:
- rework hwspinlock locking sequence in stm32 irqchip to take care of the
cases where hwspinlock node is disabled or not yet probed

Benjamin Gaignard (2):
irqchip: stm32: protect configuration registers with hwspinlock
ARM: dts: stm32: Add hwlock for irqchip on stm32mp157

arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
drivers/irqchip/irq-stm32-exti.c | 116 ++++++++++++++++++++++++++++++++-----
2 files changed, 101 insertions(+), 16 deletions(-)