linux-kernel - [PATCH 5.4 018/340] ARM: dts: exynos: correct PMIC interrupt trigger level on Monk

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Message-Id: <20210301161049.210487061@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:09:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 018/340] ARM: dts: exynos: correct PMIC interrupt trigger level on Monk

From: Krzysztof Kozlowski <krzk@...nel.org>

[ Upstream commit 8528cda2b7c667e9cd173aef1a677c71b7d5a096 ]

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: e0cefb3f79d3 ("ARM: dts: add board dts file for Exynos3250-based Monk board")
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Link: https://lore.kernel.org/r/20201210212903.216728-2-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/exynos3250-monk.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
index 248bd372fe705..a23a8749c94e4 100644
--- a/arch/arm/boot/dts/exynos3250-monk.dts
+++ b/arch/arm/boot/dts/exynos3250-monk.dts
@@ -195,7 +195,7 @@
 	s2mps14_pmic@66 {
 		compatible = "samsung,s2mps14-pmic";
 		interrupt-parent = <&gpx0>;
-		interrupts = <7 IRQ_TYPE_NONE>;
+		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
 		reg = <0x66>;
 		wakeup-source;
 
-- 
2.27.0