linux-kernel - [PATCH] arm64: dts: exynos: correct S3FWRN5 NFC interrupt trigger level on TM2

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Message-Id: <20201210211859.215047-1-krzk@kernel.org>
Date:   Thu, 10 Dec 2020 22:18:58 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Krzysztof Kozlowski <krzk@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Bongsu Jeon <bongsu.jeon@...sung.com>
Subject: [PATCH] arm64: dts: exynos: correct S3FWRN5 NFC interrupt trigger level on TM2

The S3FWRN5 datasheet describe the interrupt line as rising edge.  The
current configuration as level high, could cause spurious interrupts.

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.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 03486a8ffc67..174ea507192d 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -793,7 +793,7 @@ s3fwrn5: nfc@27 {
 		compatible = "samsung,s3fwrn5-i2c";
 		reg = <0x27>;
 		interrupt-parent = <&gpa1>;
-		interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts = <3 IRQ_TYPE_EDGE_RISING>;
 		en-gpios = <&gpf1 4 GPIO_ACTIVE_HIGH>;
 		wake-gpios = <&gpj0 2 GPIO_ACTIVE_HIGH>;
 	};
-- 
2.25.1