From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
[ Upstream commit cb31334687db31c691901269d65074a7ffaecb18 ]
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: b004a34bd0ff ("ARM: dts: exynos: Add exynos3250-artik5 dtsi file for ARTIK5 module")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201210212903.216728-1-krzk@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm/boot/dts/exynos3250-artik5.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
index 04290ec4583a6..829c05b2c405f 100644
--- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
+++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
@@ -79,7 +79,7 @@
pmic@66 {
compatible = "samsung,s2mps14-pmic";
interrupt-parent = <&gpx3>;
- interrupts = <5 IRQ_TYPE_NONE>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&s2mps14_irq>;
reg = <0x66>;
--
2.27.0
