| Message ID | 1421284089-421-1-git-send-email-khilman@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, 2015-01-14 at 17:08 -0800, Kevin Hilman wrote: > 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. I haven't tested whether the sensor values are correct, but based on the schematics & the hardkernel dts this describes the hardware correctly. Reviewed-By: Sjoerd Simons <sjoerd.simons@collabora.co.uk> > 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> > --- > v2: use "ti,ina231" as compatible string. > > 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..50353d023225 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 */ > + 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>; > + }; > + }; > + > i2c_2: i2c@12C80000 { > samsung,i2c-sda-delay = <100>; > samsung,i2c-max-bus-freq = <66000>;
Hi Kevin, On 01/15/2015 10:08 AM, Kevin Hilman wrote: > 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> > --- > v2: use "ti,ina231" as compatible string. > > 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..50353d023225 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 { It's ok but IMHO it can split using label reference, e.g. &i2c_0 { ... }; Thanks. > + 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>; > + }; > + }; > + > i2c_2: i2c@12C80000 { > samsung,i2c-sda-delay = <100>; > samsung,i2c-max-bus-freq = <66000>; > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Joonyoung Shim <jy0922.shim@samsung.com> writes: > Hi Kevin, > > On 01/15/2015 10:08 AM, Kevin Hilman wrote: >> 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> >> --- >> v2: use "ti,ina231" as compatible string. >> >> 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..50353d023225 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 { > > It's ok but IMHO it can split using label reference, e.g. > > &i2c_0 { > ... > }; Yes, you're right. I'll spin a v3. Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index c29123c0734d..50353d023225 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 */ + 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>; + }; + }; + i2c_2: i2c@12C80000 { samsung,i2c-sda-delay = <100>; samsung,i2c-max-bus-freq = <66000>;