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hwmon: (ina2xx) Add device tree support to pass the shunt resistor

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Adding another way that is device tree to pass the shunt resistor
value to driver except for platform data.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
[Guenter Roeck: Added missing of.h include]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Tang Yuantian
2013-06-19 14:50:20 +08:00
committed by Guenter Roeck
parent 87438c2c54
commit 31e7ad74f6
3 changed files with 30 additions and 1 deletions
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Documentation/hwmon/ina2xx
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@@ -44,4 +44,6 @@ The INA226 monitors both a shunt voltage drop and bus supply voltage.
The INA230 is a high or low side current shunt and power monitor with an I2C
interface. The INA230 monitors both a shunt voltage drop and bus supply voltage.
The shunt value in micro-ohms can be set via platform data.
The shunt value in micro-ohms can be set via platform data or device tree.
Please refer to the Documentation/devicetree/bindings/i2c/ina2xx.txt for bindings
if the device tree is used.