[PATCH 5.4 066/244] ARM: dts: exynos: correct fuel gauge interrupt trigger level on Midas family

From: Greg Kroah-Hartman
Date: Wed May 12 2021 - 10:57:14 EST


From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

[ Upstream commit 8a45f33bd36efbb624198cfa9fdf1f66fd1c3d26 ]

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: e8614292cd41 ("ARM: dts: Add Maxim 77693 fuel gauge node for exynos4412-trats2")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201210212534.216197-3-krzk@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/boot/dts/exynos4412-midas.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
index 83be3a797411..342abf97921e 100644
--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
@@ -187,7 +187,7 @@
max77693-fuel-gauge@36 {
compatible = "maxim,max17047";
interrupt-parent = <&gpx2>;
- interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&max77693_fuel_irq>;
reg = <0x36>;
--
2.30.2