hwmon: (pmbus) Clear sensor data after chip write

Set the sensor->data field to -ENODATA to force a chip access next time
the sensor value is read.

Signed-off-by: Erik Rosen <erik.rosen@metormote.com>
Link: https://lore.kernel.org/r/20210201195929.1200-2-erik.rosen@metormote.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 1cf7d9e..aadea85 100644 (file)
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -974,7 +974,7 @@ static ssize_t pmbus_set_sensor(struct device *dev,
        if (ret < 0)
                rv = ret;
        else
-               sensor->data = regval;
+               sensor->data = -ENODATA;
        mutex_unlock(&data->update_lock);
        return rv;
 }