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 4.19-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-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 6def12e05182cb441cc82d59a75962ed3b95d1ae 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 d991eae5202f2..2ba62118ae906 100644 --- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts +++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts @@ -85,7 +85,7 @@ 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>;