This is a note to let you know that I've just added the patch titled
arm64: dts: exynos: correct PMIC interrupt trigger level on Espresso
to the 5.4-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:
arm64-dts-exynos-correct-pmic-interrupt-trigger-leve.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 72be67e02bfe1a92c06e31d9e144f6e4f4f029cd
Author: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Date: Thu Dec 10 22:29:02 2020 +0100
arm64: dts: exynos: correct PMIC interrupt trigger level on Espresso
[ Upstream commit 1fea2eb2f5bbd3fbbe2513d2386b5f6e6db17fd7 ]
The Samsung PMIC datasheets describe the interrupt line as active low
with a requirement of acknowledge from the CPU. Without specifying the
interrupt type in Devicetree, kernel might apply some fixed
configuration, not necessarily working for this hardware.
Fixes: 9589f7721e16 ("arm64: dts: Add S2MPS15 PMIC node on exynos7-espresso")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201210212903.216728-8-krzk@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 61ee7b6a31594..09aead2be000c 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
@@ -90,7 +90,7 @@
s2mps15_pmic@66 {
compatible = "samsung,s2mps15-pmic";
reg = <0x66>;
- interrupts = <2 IRQ_TYPE_NONE>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
interrupt-parent = <&gpa0>;
pinctrl-names = "default";
pinctrl-0 = <&pmic_irq>;
