hwmon: (ibmpowernv): Add support to read 64 bit sensors

The firmware has supported for reading sensor values of size u32.
This patch adds support to use newer firmware functions which allows
to read the sensors of size u64.

Signed-off-by: Shilpasri G Bhat <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index 5ccdd0b5265066cb98aa9cbe720c43604485460c..74d9b5ae55ec822ccb4aaf4872cbb4c58915a227 100644 (file)
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -101,9 +101,10 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
        struct sensor_data *sdata = container_of(devattr, struct sensor_data,
                                                 dev_attr);
        ssize_t ret;
-       u32 x;
+       u64 x;
+
+       ret =  opal_get_sensor_data_u64(sdata->id, &x);
 
-       ret = opal_get_sensor_data(sdata->id, &x);
        if (ret)
                return ret;
 
@@ -114,7 +115,7 @@ static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
        else if (sdata->type == POWER_INPUT)
                x *= 1000000;
 
-       return sprintf(buf, "%u\n", x);
+       return sprintf(buf, "%llu\n", x);
 }
 
 static ssize_t show_label(struct device *dev, struct device_attribute *devattr,