linux-kernel - [PATCH 4.19 372/422] ARM: tegra: colibri_t30: fix mcp2515 can controller interrupt polarity

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Date:   Tue, 19 Nov 2019 06:19:29 +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,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Thierry Reding <treding@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 372/422] ARM: tegra: colibri_t30: fix mcp2515 can controller interrupt polarity

From: Marcel Ziswiler <marcel.ziswiler@...adex.com>

[ Upstream commit 503fcd8464fb6cd18073e97dec59b933930655d6 ]

Fix the MCP2515 SPI CAN controller interrupt polarity which according
to its datasheet defaults to low-active aka falling edge.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>
Signed-off-by: Thierry Reding <treding@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/tegra30-colibri-eval-v3.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
index 16e1f387aa6db..a0c550e26738f 100644
--- a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
@@ -79,7 +79,8 @@
 			reg = <0>;
 			clocks = <&clk16m>;
 			interrupt-parent = <&gpio>;
-			interrupts = <TEGRA_GPIO(S, 0) IRQ_TYPE_EDGE_RISING>;
+			/* CAN_INT */
+			interrupts = <TEGRA_GPIO(S, 0) IRQ_TYPE_EDGE_FALLING>;
 			spi-max-frequency = <10000000>;
 		};
 		spidev0: spi@1 {
-- 
2.20.1