linux-kernel - [PATCH v2 06/15] ARM: tegra: nyan: Correct interrupt trigger type of temperature sensor

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Message-Id: <20210802211947.19715-7-digetx@gmail.com>
Date:   Tue,  3 Aug 2021 00:19:38 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        Peter Geis <pgwipeout@...il.com>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: [PATCH v2 06/15] ARM: tegra: nyan: 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/arm/boot/dts/tegra124-nyan.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index 5f71add38dfe..63a81270300a 100644
--- a/arch/arm/boot/dts/tegra124-nyan.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
@@ -91,7 +91,7 @@ temperature-sensor@4c {
 			compatible = "ti,tmp451";
 			reg = <0x4c>;
 			interrupt-parent = <&gpio>;
-			interrupts = <TEGRA_GPIO(I, 6) IRQ_TYPE_LEVEL_LOW>;
+			interrupts = <TEGRA_GPIO(I, 6) IRQ_TYPE_EDGE_FALLING>;
 
 			#thermal-sensor-cells = <1>;
 		};
-- 
2.32.0