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[v4,REPOST,4/5] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree

Message ID 1415625137-4791-5-git-send-email-mikko.perttunen@kapsi.fi (mailing list archive)
State New, archived
Headers show

Commit Message

Mikko Perttunen Nov. 10, 2014, 1:12 p.m. UTC 
From: Mikko Perttunen <mperttunen@nvidia.com>

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@nvidia.com>
Reviewed-by: Wei Ni <wni@nvidia.com>
Tested-by: Wei Ni <wni@nvidia.com>
---
 arch/arm/boot/dts/tegra124-jetson-tk1.dts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index f46a789..57ead69 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -1457,7 +1457,7 @@ 
 	};
 
 	/* Expansion PWR_I2C_*, on-board components */
-	i2c@0,7000d000 {
+	pmic_bus: i2c@0,7000d000 {
 		status = "okay";
 		clock-frequency = <400000>;
 
@@ -1672,6 +1672,13 @@ 
 		nvidia,core-pwr-off-time = <61036>;
 		nvidia,core-power-req-active-high;
 		nvidia,sys-clock-req-active-high;
+
+		i2c-thermtrip {
+			nvidia,i2c-bus = <&pmic_bus>;
+			nvidia,bus-addr = <0x40>;
+			nvidia,reg-addr = <0x36>;
+			nvidia,reg-data = <0x2>;
+		};
 	};
 
 	/* Serial ATA */