hwmon: (ftsteutates) Fix scaling of measurements

[platform/kernel/linux-starfive.git] / drivers / hwmon / ftsteutates.c

diff --git a/drivers/hwmon/ftsteutates.c b/drivers/hwmon/ftsteutates.c
index f5b8e72..ffa0bb3 100644 (file)
--- a/drivers/hwmon/ftsteutates.c
+++ b/drivers/hwmon/ftsteutates.c
@@ -12,6 +12,7 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
+#include <linux/math.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
@@ -347,13 +348,15 @@ static ssize_t in_value_show(struct device *dev,
 {
        struct fts_data *data = dev_get_drvdata(dev);
        int index = to_sensor_dev_attr(devattr)->index;
-       int err;
+       int value, err;
 
        err = fts_update_device(data);
        if (err < 0)
                return err;
 
-       return sprintf(buf, "%u\n", data->volt[index]);
+       value = DIV_ROUND_CLOSEST(data->volt[index] * 3300, 255);
+
+       return sprintf(buf, "%d\n", value);
 }
 
 static ssize_t temp_value_show(struct device *dev,
@@ -361,13 +364,15 @@ static ssize_t temp_value_show(struct device *dev,
 {
        struct fts_data *data = dev_get_drvdata(dev);
        int index = to_sensor_dev_attr(devattr)->index;
-       int err;
+       int value, err;
 
        err = fts_update_device(data);
        if (err < 0)
                return err;
 
-       return sprintf(buf, "%u\n", data->temp_input[index]);
+       value = (data->temp_input[index] - 64) * 1000;
+
+       return sprintf(buf, "%d\n", value);
 }
 
 static ssize_t temp_fault_show(struct device *dev,
@@ -436,13 +441,15 @@ static ssize_t fan_value_show(struct device *dev,
 {
        struct fts_data *data = dev_get_drvdata(dev);
        int index = to_sensor_dev_attr(devattr)->index;
-       int err;
+       int value, err;
 
        err = fts_update_device(data);
        if (err < 0)
                return err;
 
-       return sprintf(buf, "%u\n", data->fan_input[index]);
+       value = data->fan_input[index] * 60;
+
+       return sprintf(buf, "%d\n", value);
 }
 
 static ssize_t fan_source_show(struct device *dev,