Thread (776 messages) 776 messages, 1 author, 2021-03-02
STALE1918d REVIEWED: 8 (8M)

[PATCH 5.11 035/775] arm64: dts: exynos: correct PMIC interrupt trigger level on TM2

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-03-02 00:58:33
Also in: lkml
Subsystem: arm/samsung s3c, s5p and exynos arm architectures, the rest · Maintainers: Krzysztof Kozlowski, Linus Torvalds

From: Krzysztof Kozlowski <krzk@kernel.org>

[ Upstream commit e98e2367dfb4b6d7a80c8ce795c644124eff5f36 ]

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: 01e5d2352152 ("arm64: dts: exynos: Add dts file for Exynos5433-based TM2 board")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20201210212903.216728-7-krzk@kernel.org (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
index 03486a8ffc67e..4c5106a0860d0 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -388,7 +388,7 @@
 	pmic@66 {
 		compatible = "samsung,s2mps13-pmic";
 		interrupt-parent = <&gpa0>;
-		interrupts = <7 IRQ_TYPE_NONE>;
+		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
 		reg = <0x66>;
 		samsung,s2mps11-wrstbi-ground;
 
-- 
2.27.0


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