[PATCH 2/3] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree
From: Thierry Reding <hidden>
Date: 2014-08-13 07:37:43
Also in:
linux-tegra, lkml
On Tue, Aug 05, 2014 at 11:12:59AM +0300, Mikko Perttunen wrote:
quoted hunk ↗ jump to hunk
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> --- 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 624b0fb..ee178c4 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>;
Given the number of properties that this can potentially have, I wonder
if perhaps it would be a good idea to put this into a subnode, like
this:
thermtrip {
pmu-i2c-addr = <0x40>;
i2c-controller = <4>;
...
};
Thierry
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