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ARM: dts: add on-board INA231 sensors for exynos5422-odroidxu3 

The odroid-xu3 has 4 INA231 current sensors on board which can be
accessed from the Linux via the hwmon interface.

There is one sensor for each of these power rails:

- A15 cluster: VDD_ARM
- A7 cluster: VDD_KFC
- GPU: VDD_G3D
- memory: VDD_MEM

In addition to adding the sensors, LDO26 from the PMIC needs to be
enabled because it's powering these sensor.

Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
This commit is contained in:
Kevin Hilman 2015-01-24 13:19:03 +09:00 committed by Kukjin Kim
parent 9ce09a1f11
commit e0fc8de687
1 changed files with 39 additions and 0 deletions
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39
arch/arm/boot/dts/exynos5422-odroidxu3.dts
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@ -174,6 +174,13 @@
regulator-always-on;
};
ldo26_reg: LDO26 {
regulator-name = "vdd_ldo26";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
buck1_reg: BUCK1 {
regulator-name = "vdd_mif";
regulator-min-microvolt = <800000>;
@ -330,3 +337,35 @@
&usbdrd_dwc3_1 {
dr_mode = "otg";
};
&i2c_0 {
status = "okay";
/* A15 cluster: VDD_ARM */
ina231@40 {
compatible = "ti,ina231";
reg = <0x40>;
shunt-resistor = <10000>;
};
/* memory: VDD_MEM */
ina231@41 {
compatible = "ti,ina231";
reg = <0x41>;
shunt-resistor = <10000>;
};
/* GPU: VDD_G3D */
ina231@44 {
compatible = "ti,ina231";
reg = <0x44>;
shunt-resistor = <10000>;
};
/* A7 cluster: VDD_KFC */
ina231@45 {
compatible = "ti,ina231";
reg = <0x45>;
shunt-resistor = <10000>;
};
};