hwmon: (core) Add support for rated attributes

Adding implementation for new attributes (rated_min/rated_max) for
currentX, inX, powerX, tempX and humidityX.

Tested with OpenBMC stack and simple hwmon driver using
rated_min/rated_max for the following types of sensors: hwmon_temp,
hwmon_in, hwmon_curr, hwmon_power, hwmon_humidity.
For each sensor rated attributes were available and returned
expected values.

Signed-off-by: Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com>
Link: https://lore.kernel.org/r/1596224237-32280-3-git-send-email-zbigniew.lukwinski@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index 3f596a5..6c68405 100644 (file)
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -431,6 +431,8 @@ static const char * const hwmon_temp_attr_templates[] = {
        [hwmon_temp_lowest] = "temp%d_lowest",
        [hwmon_temp_highest] = "temp%d_highest",
        [hwmon_temp_reset_history] = "temp%d_reset_history",
+       [hwmon_temp_rated_min] = "temp%d_rated_min",
+       [hwmon_temp_rated_max] = "temp%d_rated_max",
 };
 
 static const char * const hwmon_in_attr_templates[] = {
@@ -450,6 +452,8 @@ static const char * const hwmon_in_attr_templates[] = {
        [hwmon_in_max_alarm] = "in%d_max_alarm",
        [hwmon_in_lcrit_alarm] = "in%d_lcrit_alarm",
        [hwmon_in_crit_alarm] = "in%d_crit_alarm",
+       [hwmon_in_rated_min] = "in%d_rated_min",
+       [hwmon_in_rated_max] = "in%d_rated_max",
 };
 
 static const char * const hwmon_curr_attr_templates[] = {
@@ -469,6 +473,8 @@ static const char * const hwmon_curr_attr_templates[] = {
        [hwmon_curr_max_alarm] = "curr%d_max_alarm",
        [hwmon_curr_lcrit_alarm] = "curr%d_lcrit_alarm",
        [hwmon_curr_crit_alarm] = "curr%d_crit_alarm",
+       [hwmon_curr_rated_min] = "curr%d_rated_min",
+       [hwmon_curr_rated_max] = "curr%d_rated_max",
 };
 
 static const char * const hwmon_power_attr_templates[] = {
@@ -501,6 +507,8 @@ static const char * const hwmon_power_attr_templates[] = {
        [hwmon_power_max_alarm] = "power%d_max_alarm",
        [hwmon_power_lcrit_alarm] = "power%d_lcrit_alarm",
        [hwmon_power_crit_alarm] = "power%d_crit_alarm",
+       [hwmon_power_rated_min] = "power%d_rated_min",
+       [hwmon_power_rated_max] = "power%d_rated_max",
 };
 
 static const char * const hwmon_energy_attr_templates[] = {
@@ -519,6 +527,8 @@ static const char * const hwmon_humidity_attr_templates[] = {
        [hwmon_humidity_max_hyst] = "humidity%d_max_hyst",
        [hwmon_humidity_alarm] = "humidity%d_alarm",
        [hwmon_humidity_fault] = "humidity%d_fault",
+       [hwmon_humidity_rated_min] = "humidity%d_rated_min",
+       [hwmon_humidity_rated_max] = "humidity%d_rated_max",
 };
 
 static const char * const hwmon_fan_attr_templates[] = {

diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 363d4a8..1e8d6ea 100644 (file)
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -85,6 +85,8 @@ enum hwmon_temp_attributes {
        hwmon_temp_lowest,
        hwmon_temp_highest,
        hwmon_temp_reset_history,
+       hwmon_temp_rated_min,
+       hwmon_temp_rated_max,
 };
 
 #define HWMON_T_ENABLE         BIT(hwmon_temp_enable)
@@ -112,6 +114,8 @@ enum hwmon_temp_attributes {
 #define HWMON_T_LOWEST         BIT(hwmon_temp_lowest)
 #define HWMON_T_HIGHEST                BIT(hwmon_temp_highest)
 #define HWMON_T_RESET_HISTORY  BIT(hwmon_temp_reset_history)
+#define HWMON_T_RATED_MIN      BIT(hwmon_temp_rated_min)
+#define HWMON_T_RATED_MAX      BIT(hwmon_temp_rated_max)
 
 enum hwmon_in_attributes {
        hwmon_in_enable,
@@ -130,6 +134,8 @@ enum hwmon_in_attributes {
        hwmon_in_max_alarm,
        hwmon_in_lcrit_alarm,
        hwmon_in_crit_alarm,
+       hwmon_in_rated_min,
+       hwmon_in_rated_max,
 };
 
 #define HWMON_I_ENABLE         BIT(hwmon_in_enable)
@@ -148,6 +154,8 @@ enum hwmon_in_attributes {
 #define HWMON_I_MAX_ALARM      BIT(hwmon_in_max_alarm)
 #define HWMON_I_LCRIT_ALARM    BIT(hwmon_in_lcrit_alarm)
 #define HWMON_I_CRIT_ALARM     BIT(hwmon_in_crit_alarm)
+#define HWMON_I_RATED_MIN      BIT(hwmon_in_rated_min)
+#define HWMON_I_RATED_MAX      BIT(hwmon_in_rated_max)
 
 enum hwmon_curr_attributes {
        hwmon_curr_enable,
@@ -166,6 +174,8 @@ enum hwmon_curr_attributes {
        hwmon_curr_max_alarm,
        hwmon_curr_lcrit_alarm,
        hwmon_curr_crit_alarm,
+       hwmon_curr_rated_min,
+       hwmon_curr_rated_max,
 };
 
 #define HWMON_C_ENABLE         BIT(hwmon_curr_enable)
@@ -184,6 +194,8 @@ enum hwmon_curr_attributes {
 #define HWMON_C_MAX_ALARM      BIT(hwmon_curr_max_alarm)
 #define HWMON_C_LCRIT_ALARM    BIT(hwmon_curr_lcrit_alarm)
 #define HWMON_C_CRIT_ALARM     BIT(hwmon_curr_crit_alarm)
+#define HWMON_C_RATED_MIN      BIT(hwmon_curr_rated_min)
+#define HWMON_C_RATED_MAX      BIT(hwmon_curr_rated_max)
 
 enum hwmon_power_attributes {
        hwmon_power_enable,
@@ -215,6 +227,8 @@ enum hwmon_power_attributes {
        hwmon_power_max_alarm,
        hwmon_power_lcrit_alarm,
        hwmon_power_crit_alarm,
+       hwmon_power_rated_min,
+       hwmon_power_rated_max,
 };
 
 #define HWMON_P_ENABLE                 BIT(hwmon_power_enable)
@@ -246,6 +260,8 @@ enum hwmon_power_attributes {
 #define HWMON_P_MAX_ALARM              BIT(hwmon_power_max_alarm)
 #define HWMON_P_LCRIT_ALARM            BIT(hwmon_power_lcrit_alarm)
 #define HWMON_P_CRIT_ALARM             BIT(hwmon_power_crit_alarm)
+#define HWMON_P_RATED_MIN              BIT(hwmon_power_rated_min)
+#define HWMON_P_RATED_MAX              BIT(hwmon_power_rated_max)
 
 enum hwmon_energy_attributes {
        hwmon_energy_enable,
@@ -267,6 +283,8 @@ enum hwmon_humidity_attributes {
        hwmon_humidity_max_hyst,
        hwmon_humidity_alarm,
        hwmon_humidity_fault,
+       hwmon_humidity_rated_min,
+       hwmon_humidity_rated_max,
 };
 
 #define HWMON_H_ENABLE                 BIT(hwmon_humidity_enable)
@@ -278,6 +296,8 @@ enum hwmon_humidity_attributes {
 #define HWMON_H_MAX_HYST               BIT(hwmon_humidity_max_hyst)
 #define HWMON_H_ALARM                  BIT(hwmon_humidity_alarm)
 #define HWMON_H_FAULT                  BIT(hwmon_humidity_fault)
+#define HWMON_H_RATED_MIN              BIT(hwmon_humidity_rated_min)
+#define HWMON_H_RATED_MAX              BIT(hwmon_humidity_rated_max)
 
 enum hwmon_fan_attributes {
        hwmon_fan_enable,