Messages in this thread Patch in this message | | | From | Mikko Perttunen <> | Subject | [PATCH v3 4/5] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree | Date | Sat, 6 Sep 2014 11:54:44 +0300 |
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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> --- v3 - updated to new binding
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 d4ddabd..d8894e2 100644 --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts @@ -1422,7 +1422,7 @@ }; /* Expansion PWR_I2C_*, on-board components */ - i2c@0,7000d000 { + pmic_bus: i2c@0,7000d000 { status = "okay"; clock-frequency = <400000>; @@ -1637,6 +1637,13 @@ 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>; + }; }; padctl@0,7009f000 { -- 2.1.0
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