[PATCH 4.9 016/134] arm64: dts: exynos: correct PMIC interrupt trigger level on Espresso
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-03-01 17:19:03
Also in:
lkml
Subsystem:
arm/samsung s3c, s5p and exynos arm architectures, the rest · Maintainers:
Krzysztof Kozlowski, Linus Torvalds
From: Krzysztof Kozlowski <krzk@kernel.org>
[ 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@kernel.org>
Link: https://lore.kernel.org/r/20201210212903.216728-8-krzk@kernel.org (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
index 2f7d144d556da..e43e804c42c3e 100644
--- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts
+++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts@@ -64,7 +64,7 @@ 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>;
--
2.27.0