fpga: dfl: fme: use SI unit prefix macros

Substitute SI prefixes MILLI for temperature and MICRO for power, which
are exported via the hwmon sysfs interface in m°C and ųW, respectively.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Peter Colberg <peter.colberg@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20230705033548.10737-1-peter.colberg@intel.com
Signed-off-by: Xu Yilun <yilun.xu@intel.com>

diff --git a/drivers/fpga/dfl-fme-main.c b/drivers/fpga/dfl-fme-main.c
index bcb5d34..3dcf990 100644 (file)
--- a/drivers/fpga/dfl-fme-main.c
+++ b/drivers/fpga/dfl-fme-main.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
+#include <linux/units.h>
 #include <linux/fpga-dfl.h>
 
 #include "dfl.h"
@@ -231,19 +232,19 @@ static int thermal_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
        switch (attr) {
        case hwmon_temp_input:
                v = readq(feature->ioaddr + FME_THERM_RDSENSOR_FMT1);
-               *val = (long)(FIELD_GET(FPGA_TEMPERATURE, v) * 1000);
+               *val = (long)(FIELD_GET(FPGA_TEMPERATURE, v) * MILLI);
                break;
        case hwmon_temp_max:
                v = readq(feature->ioaddr + FME_THERM_THRESHOLD);
-               *val = (long)(FIELD_GET(TEMP_THRESHOLD1, v) * 1000);
+               *val = (long)(FIELD_GET(TEMP_THRESHOLD1, v) * MILLI);
                break;
        case hwmon_temp_crit:
                v = readq(feature->ioaddr + FME_THERM_THRESHOLD);
-               *val = (long)(FIELD_GET(TEMP_THRESHOLD2, v) * 1000);
+               *val = (long)(FIELD_GET(TEMP_THRESHOLD2, v) * MILLI);
                break;
        case hwmon_temp_emergency:
                v = readq(feature->ioaddr + FME_THERM_THRESHOLD);
-               *val = (long)(FIELD_GET(TRIP_THRESHOLD, v) * 1000);
+               *val = (long)(FIELD_GET(TRIP_THRESHOLD, v) * MILLI);
                break;
        case hwmon_temp_max_alarm:
                v = readq(feature->ioaddr + FME_THERM_THRESHOLD);
@@ -382,15 +383,15 @@ static int power_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
        switch (attr) {
        case hwmon_power_input:
                v = readq(feature->ioaddr + FME_PWR_STATUS);
-               *val = (long)(FIELD_GET(PWR_CONSUMED, v) * 1000000);
+               *val = (long)(FIELD_GET(PWR_CONSUMED, v) * MICRO);
                break;
        case hwmon_power_max:
                v = readq(feature->ioaddr + FME_PWR_THRESHOLD);
-               *val = (long)(FIELD_GET(PWR_THRESHOLD1, v) * 1000000);
+               *val = (long)(FIELD_GET(PWR_THRESHOLD1, v) * MICRO);
                break;
        case hwmon_power_crit:
                v = readq(feature->ioaddr + FME_PWR_THRESHOLD);
-               *val = (long)(FIELD_GET(PWR_THRESHOLD2, v) * 1000000);
+               *val = (long)(FIELD_GET(PWR_THRESHOLD2, v) * MICRO);
                break;
        case hwmon_power_max_alarm:
                v = readq(feature->ioaddr + FME_PWR_THRESHOLD);
@@ -415,7 +416,7 @@ static int power_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
        int ret = 0;
        u64 v;
 
-       val = clamp_val(val / 1000000, 0, PWR_THRESHOLD_MAX);
+       val = clamp_val(val / MICRO, 0, PWR_THRESHOLD_MAX);
 
        mutex_lock(&pdata->lock);