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

[Mikko Perttunen]

From: Mikko Perttunen <mperttunen@xxxxxxxxxx>

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

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 */
-- 
2.1.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/