ARM: dts: stm32: Add IWDG2 EXTI interrupt mapping and mark as wakeup source

The IWDG2 is capable of generating pre-timeout interrupt, which can be used
to wake the system up from suspend to mem. Add the EXTI interrupt mapping
and mark the IWDG2 as wake up source.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>

diff --git a/arch/arm/boot/dts/st/stm32mp151.dtsi b/arch/arm/boot/dts/st/stm32mp151.dtsi
index 4f878ec102c1f681577fe19d766d9dbf4bce1988..b28dc90926bdac2de21b71cf2372bbd198761cdf 100644 (file)
--- a/arch/arm/boot/dts/st/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp151.dtsi
@@ -355,6 +355,8 @@
                        reg = <0x5a002000 0x400>;
                        clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
                        clock-names = "pclk", "lsi";
+                       interrupts-extended = <&exti 46 IRQ_TYPE_LEVEL_HIGH>;
+                       wakeup-source;
                        status = "disabled";
                };