From: Kevin Hilman khilman@linaro.org
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 Signed-off-by: Kevin Hilman khilman@linaro.org --- Applies on top of "ARM: dts: Add dts file for odroid XU3 board" from Sjoerd Simons.
arch/arm/boot/dts/exynos5422-odroidxu3.dts | 39 ++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index c29123c0734d..7874da20939f 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts @@ -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>; @@ -257,6 +264,38 @@ }; };
+ i2c_0: i2c@12C60000 { + status = "okay"; + + /* A15 cluster: VDD_ARM */ + ina220@40 { + compatible = "ti,ina230"; + reg = <0x40>; + shunt-resistor = <10000>; + }; + + /* memory: VDD_MEM */ + ina220@41 { + compatible = "ti,ina230"; + reg = <0x41>; + shunt-resistor = <10000>; + }; + + /* GPU: VDD_G3D */ + ina220@44 { + compatible = "ti,ina230"; + reg = <0x44>; + shunt-resistor = <10000>; + }; + + /* A7 cluster: VDD_KFC */ + ina220@45 { + compatible = "ti,ina230"; + reg = <0x45>; + shunt-resistor = <10000>; + }; + }; + i2c_2: i2c@12C80000 { samsung,i2c-sda-delay = <100>; samsung,i2c-max-bus-freq = <66000>;