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ARM: dts: exynos: correct PMIC interrupt trigger level on Odroid X/U3 family

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[ Upstream commit 6503c568e9 ]

The Maxim 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.

Additionally, the interrupt line is shared so using level sensitive
interrupt is here especially important to avoid races.

Fixes: eea6653aae ("ARM: dts: Enable PMIC interrupts for exynos4412-odroid-common")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201210212534.216197-6-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Krzysztof Kozlowski
2020-12-10 22:25:22 +01:00
committed by Greg Kroah-Hartman
parent 2c2d05131e
commit c4121dac1c
1 changed files with 1 additions and 1 deletions
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arch/arm/boot/dts/exynos4412-odroid-common.dtsi
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@@ -279,7 +279,7 @@
max77686: pmic@9 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
interrupts = <2 IRQ_TYPE_NONE>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
reg = <0x09>;