From 31e7ad74f6044ffec112fd4975c07b797589d89c Mon Sep 17 00:00:00 2001 From: Tang Yuantian Date: Wed, 19 Jun 2013 14:50:20 +0800 Subject: hwmon: (ina2xx) Add device tree support to pass the shunt resistor Adding another way that is device tree to pass the shunt resistor value to driver except for platform data. Signed-off-by: Tang Yuantian [Guenter Roeck: Added missing of.h include] Signed-off-by: Guenter Roeck --- drivers/hwmon/ina2xx.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index 4958b2f89dce..d917a2d8c30f 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -34,6 +34,7 @@ #include #include #include +#include #include @@ -221,6 +222,7 @@ static int ina2xx_probe(struct i2c_client *client, struct ina2xx_data *data; struct ina2xx_platform_data *pdata; int ret; + u32 val; long shunt = 10000; /* default shunt value 10mOhms */ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) @@ -234,6 +236,9 @@ static int ina2xx_probe(struct i2c_client *client, pdata = (struct ina2xx_platform_data *)client->dev.platform_data; shunt = pdata->shunt_uohms; + } else if (!of_property_read_u32(client->dev.of_node, + "shunt-resistor", &val)) { + shunt = val; } if (shunt <= 0) -- cgit v1.2.3