linux-kernel - [PATCH 5.12 146/677] ARM: dts: exynos: correct fuel gauge interrupt trigger level on P4 Note family

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Message-Id: <20210512144842.095588909@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:43:12 +0200
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 5.12 146/677] ARM: dts: exynos: correct fuel gauge interrupt trigger level on P4 Note family

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

[ Upstream commit c731a16e2cf424a462c7d42c33d6acd613576508 ]

The Maxim fuel gauge datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU.  The falling edge
interrupt will mostly work but it's not correct.

Fixes: f48b5050c301 ("ARM: dts: exynos: add Samsung's Exynos4412-based P4 Note boards")
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-2-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/exynos4412-p4note.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4412-p4note.dtsi b/arch/arm/boot/dts/exynos4412-p4note.dtsi
index b2f9d5448a18..5fe371543cbb 100644
--- a/arch/arm/boot/dts/exynos4412-p4note.dtsi
+++ b/arch/arm/boot/dts/exynos4412-p4note.dtsi
@@ -146,7 +146,7 @@
 			pinctrl-0 = <&fuel_alert_irq>;
 			pinctrl-names = "default";
 			interrupt-parent = <&gpx2>;
-			interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+			interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 			maxim,rsns-microohm = <10000>;
 			maxim,over-heat-temp = <600>;
 			maxim,over-volt = <4300>;
-- 
2.30.2