linux-kernel - [PATCH v1 1/1] arm64: tegra194: p2888: Correct interrupt trigger type of temperature sensor

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Message-Id: <20210711234939.28103-2-digetx@gmail.com>
Date:   Mon, 12 Jul 2021 02:49:39 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: [PATCH v1 1/1] arm64: tegra194: p2888: Correct interrupt trigger type of temperature sensor

The LM90 temperature sensor should use edge-triggered interrupt because
LM90 hardware doesn't deassert interrupt line until temperature is back
to normal state, which results in interrupt storm. Correct the interrupt
trigger type.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
index 7e7b0eb90c80..c4058ee36fec 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
@@ -309,7 +309,7 @@ temperature-sensor@4c {
 
 				interrupt-parent = <&gpio>;
 				interrupts = <TEGRA194_MAIN_GPIO(H, 2)
-					      IRQ_TYPE_LEVEL_LOW>;
+					      IRQ_TYPE_EDGE_FALLING>;
 				vcc-supply = <&vdd_1v8ls>;
 
 				#thermal-sensor-cells = <1>;
-- 
2.32.0