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arm64: tegra: Add INA3221 channel info for Jetson TX2

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There are four INA3221 chips on the Jetson TX2 (p3310 + p2771).
And each INA3221 chip has three input channels to monitor power.

So this patch adds these 12 channels to the DT of Jetson TX2, by
following the DT binding of INA3221 and official documents from
https://developer.nvidia.com/embedded/downloads

tegra186-p3310:
https://developer.nvidia.com/embedded/dlc/jetson-tx2-series-modules-oem-product-design-guide

tegra186-p2771-0000:
http://developer.nvidia.com/embedded/dlc/jetson-tx1-tx2-developer-kit-carrier-board-spec-20180618

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Nicolin Chen 2019-06-17 15:16:59 -07:00 committed by Thierry Reding
parent d87764daed
commit 08c7c74b09
2 changed files with 80 additions and 0 deletions
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40
arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
View File

@ -14,11 +14,51 @@
power-monitor@42 {
compatible = "ti,ina3221";
reg = <0x42>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0x0>;
label = "VDD_MUX";
shunt-resistor-micro-ohms = <20000>;
};
channel@1 {
reg = <0x1>;
label = "VDD_5V0_IO_SYS";
shunt-resistor-micro-ohms = <5000>;
};
channel@2 {
reg = <0x2>;
label = "VDD_3V3_SYS";
shunt-resistor-micro-ohms = <10000>;
};
};
power-monitor@43 {
compatible = "ti,ina3221";
reg = <0x43>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0x0>;
label = "VDD_3V3_IO_SLP";
shunt-resistor-micro-ohms = <10000>;
};
channel@1 {
reg = <0x1>;
label = "VDD_1V8_IO";
shunt-resistor-micro-ohms = <10000>;
};
channel@2 {
reg = <0x2>;
label = "VDD_M2_IN";
shunt-resistor-micro-ohms = <10000>;
};
};
exp1: gpio@74 {

40
arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi
View File

@ -67,11 +67,51 @@
power-monitor@40 {
compatible = "ti,ina3221";
reg = <0x40>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0x0>;
label = "VDD_SYS_GPU";
shunt-resistor-micro-ohms = <10000>;
};
channel@1 {
reg = <0x1>;
label = "VDD_SYS_SOC";
shunt-resistor-micro-ohms = <10000>;
};
channel@2 {
reg = <0x2>;
label = "VDD_3V8_WIFI";
shunt-resistor-micro-ohms = <10000>;
};
};
power-monitor@41 {
compatible = "ti,ina3221";
reg = <0x41>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0x0>;
label = "VDD_IN";
shunt-resistor-micro-ohms = <5000>;
};
channel@1 {
reg = <0x1>;
label = "VDD_SYS_CPU";
shunt-resistor-micro-ohms = <10000>;
};
channel@2 {
reg = <0x2>;
label = "VDD_5V0_DDR";
shunt-resistor-micro-ohms = <10000>;
};
};
};