This is a note to let you know that I've just added the patch titled
ARM: dts: stm32: Fix IPCC EXTI declaration on stm32mp151
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-dts-stm32-fix-ipcc-exti-declaration-on-stm32mp15.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e98ad82fdd6111582880ce49328a9d40aead5ddb
Author: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Date: Fri Dec 6 18:17:59 2024 +0100
ARM: dts: stm32: Fix IPCC EXTI declaration on stm32mp151
[ Upstream commit 4ea654242e0c75bdf6b45d3c619c5fdcb2e9312a ]
The GIC IRQ type used for IPCC RX should be IRQ_TYPE_LEVEL_HIGH.
Replacing the interrupt with the EXTI event changes the type to
the numeric value 1, meaning IRQ_TYPE_EDGE_RISING.
The issue is that EXTI event 61 is a direct event.The IRQ type of
direct events is not used by EXTI and is propagated to the parent
IRQ controller of EXTI, the GIC.
Align the IRQ type to the value expected by the GIC by replacing
the second parameter "1" with IRQ_TYPE_LEVEL_HIGH.
Fixes: 7d9802bb0e34 ("ARM: dts: stm32: remove the IPCC "wakeup" IRQ on stm32mp151")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/boot/dts/st/stm32mp151.dtsi b/arch/arm/boot/dts/st/stm32mp151.dtsi
index aec7fa5ab5d8c..fe79d5d40c116 100644
--- a/arch/arm/boot/dts/st/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp151.dtsi
@@ -1165,7 +1165,7 @@ ipcc: mailbox@4c001000 {
reg = <0x4c001000 0x400>;
st,proc-id = <0>;
interrupts-extended =
- <&exti 61 1>,
+ <&exti 61 IRQ_TYPE_LEVEL_HIGH>,
<&intc GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "rx", "tx";
clocks = <&rcc IPCC>;
