linux-kernel - [PATCH 4.4 11/93] ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa

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Message-Id: <20210301161007.456897127@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:12:23 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 11/93] ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa

From: Krzysztof Kozlowski <krzk@...nel.org>

[ Upstream commit 1ac8893c4fa3d4a34915dc5cdab568a39db5086c ]

The Samsung PMIC 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: 1fed2252713e ("ARM: dts: fix pinctrl for s2mps11-irq on exynos5420-arndale-octa")
Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>
Link: https://lore.kernel.org/r/20201210212903.216728-5-krzk@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/exynos5420-arndale-octa.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index b54c0b8a5b346..5cf9bcc91c4ab 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -75,7 +75,7 @@
 		s2mps11,buck4-ramp-enable = <1>;
 
 		interrupt-parent = <&gpx3>;
-		interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&s2mps11_irq>;
 
-- 
2.27.0