On Tue, Aug 05, 2014 at 11:12:59AM +0300, Mikko Perttunen wrote:
> 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>
> ---
> 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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