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ARM: dts: exynos: correct fuel gauge interrupt trigger level on GT-I9100
authorKrzysztof Kozlowski <krzk@kernel.org>
Thu, 10 Dec 2020 21:25:17 +0000 (22:25 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 14 May 2021 07:50:06 +0000 (09:50 +0200)
[ Upstream commit 46799802136670e00498f19898f1635fbc85f583 ]

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: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-1-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/arm/boot/dts/exynos4210-i9100.dts patch | blob | history

diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
index 5370ee4..7777bf5 100644 (file)
--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -136,7 +136,7 @@
                        compatible = "maxim,max17042";
 
                        interrupt-parent = <&gpx2>;
-                       interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+                       interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
 
                        pinctrl-0 = <&max17042_fuel_irq>;
                        pinctrl-names = "default";
Domain: System / Kernel;