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Commit e0fc8de6 authored by Kevin Hilman's avatar Kevin Hilman Committed by Kukjin Kim
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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: default avatarSjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: default avatarKevin Hilman <khilman@linaro.org>
Signed-off-by: default avatarKukjin Kim <kgene@kernel.org>
parent 9ce09a1f

arch/arm/boot/dts/exynos5422-odroidxu3.dts

+39 −0
Original line number Diff line number Diff line
@@ -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>;

	};

};