linux-kernel - [RFC 1/5] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree

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Message-ID: <1403178640-16052-2-git-send-email-mperttunen@nvidia.com>
Date:	Thu, 19 Jun 2014 14:50:36 +0300
From:	Mikko Perttunen <mperttunen@...dia.com>
To:	<swarren@...dotorg.org>, <thierry.reding@...il.com>,
	<pdeschrijver@...dia.com>, <rui.zhang@...el.com>,
	<edubezval@...il.com>
CC:	<devicetree@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
	<mikko.perttunen@...si.fi>, <mlongnecker@...dia.com>,
	<dtundlam@...dia.com>, <talho@...dia.com>,
	Mikko Perttunen <mperttunen@...dia.com>
Subject: [RFC 1/5] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree

This adds the required information to reset the board during an overheating
situation to the Jetson TK1 device tree. The thermal reset is handled by the
PMC by sending an I2C message to the PMIC. The entries specify the I2C
message to be sent.

Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
---
 arch/arm/boot/dts/tegra124-jetson-tk1.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index 16082c0..896c24b 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -1617,6 +1617,11 @@
 		nvidia,core-pwr-off-time = <61036>;
 		nvidia,core-power-req-active-high;
 		nvidia,sys-clock-req-active-high;
+
+		nvidia,thermtrip-pmu-i2c-addr = <0x40>;
+		nvidia,thermtrip-i2c-controller = <4>;
+		nvidia,thermtrip-reg-addr = <0x36>;
+		nvidia,thermtrip-reg-data = <0x2>;
 	};
 
 	/* SD card */
-- 
1.8.1.5

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