@@ -39,16 +39,18 @@
#include <linux/err.h>
#include "core.h"
+#include "core_env.h"
-#define MLXSW_THERMAL_POLL_INT 1000 /* ms */
+#define MLXSW_THERMAL_POLL_INT 1000 /* ms */
#define MLXSW_THERMAL_SLOW_POLL_INT 20000 /* ms */
-#define MLXSW_THERMAL_MAX_TEMP 110000 /* 110C */
-#define MLXSW_THERMAL_MAX_STATE 10
-#define MLXSW_THERMAL_MAX_DUTY 255
+#define MLXSW_THERMAL_HYSTERESIS_TEMP 5000 /* 5C */
+#define MLXSW_THERMAL_MAX_STATE 10
+#define MLXSW_THERMAL_MAX_DUTY 255
struct mlxsw_thermal_trip {
int type;
int temp;
+ int hyst;
int min_state;
int max_state;
};
@@ -56,32 +58,29 @@ struct mlxsw_thermal_trip {
static const struct mlxsw_thermal_trip default_thermal_trips[] = {
{ /* In range - 0-40% PWM */
.type = THERMAL_TRIP_ACTIVE,
- .temp = 75000,
+ .temp = MLXSW_ENV_TEMP_NORM,
+ .hyst = MLXSW_THERMAL_HYSTERESIS_TEMP,
.min_state = 0,
.max_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
},
- { /* High - 40-100% PWM */
- .type = THERMAL_TRIP_ACTIVE,
- .temp = 80000,
- .min_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
- .max_state = MLXSW_THERMAL_MAX_STATE,
- },
{
- /* Very high - 100% PWM */
+ /* In range - 40-100% PWM */
.type = THERMAL_TRIP_ACTIVE,
- .temp = 85000,
- .min_state = MLXSW_THERMAL_MAX_STATE,
+ .temp = MLXSW_ENV_TEMP_HIGH,
+ .hyst = MLXSW_THERMAL_HYSTERESIS_TEMP,
+ .min_state = (4 * MLXSW_THERMAL_MAX_STATE) / 10,
.max_state = MLXSW_THERMAL_MAX_STATE,
},
{ /* Warning */
.type = THERMAL_TRIP_HOT,
- .temp = 105000,
+ .temp = MLXSW_ENV_TEMP_HOT,
+ .hyst = MLXSW_THERMAL_HYSTERESIS_TEMP,
.min_state = MLXSW_THERMAL_MAX_STATE,
.max_state = MLXSW_THERMAL_MAX_STATE,
},
{ /* Critical - soft poweroff */
.type = THERMAL_TRIP_CRITICAL,
- .temp = MLXSW_THERMAL_MAX_TEMP,
+ .temp = MLXSW_ENV_TEMP_CRIT,
.min_state = MLXSW_THERMAL_MAX_STATE,
.max_state = MLXSW_THERMAL_MAX_STATE,
}
@@ -257,22 +256,42 @@ static int mlxsw_thermal_set_trip_temp(struct thermal_zone_device *tzdev,
struct mlxsw_thermal *thermal = tzdev->devdata;
if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS ||
- temp > MLXSW_THERMAL_MAX_TEMP)
+ temp > MLXSW_ENV_TEMP_CRIT)
return -EINVAL;
thermal->trips[trip].temp = temp;
return 0;
}
+static int mlxsw_thermal_get_trip_hyst(struct thermal_zone_device *tzdev,
+ int trip, int *p_hyst)
+{
+ struct mlxsw_thermal *thermal = tzdev->devdata;
+
+ *p_hyst = thermal->trips[trip].hyst;
+ return 0;
+}
+
+static int mlxsw_thermal_set_trip_hyst(struct thermal_zone_device *tzdev,
+ int trip, int hyst)
+{
+ struct mlxsw_thermal *thermal = tzdev->devdata;
+
+ thermal->trips[trip].hyst = hyst;
+ return 0;
+}
+
static struct thermal_zone_device_ops mlxsw_thermal_ops = {
- .bind = mlxsw_thermal_bind,
- .unbind = mlxsw_thermal_unbind,
- .get_mode = mlxsw_thermal_get_mode,
- .set_mode = mlxsw_thermal_set_mode,
- .get_temp = mlxsw_thermal_get_temp,
+ .bind = mlxsw_thermal_bind,
+ .unbind = mlxsw_thermal_unbind,
+ .get_mode = mlxsw_thermal_get_mode,
+ .set_mode = mlxsw_thermal_set_mode,
+ .get_temp = mlxsw_thermal_get_temp,
.get_trip_type = mlxsw_thermal_get_trip_type,
.get_trip_temp = mlxsw_thermal_get_trip_temp,
.set_trip_temp = mlxsw_thermal_set_trip_temp,
+ .get_trip_hyst = mlxsw_thermal_get_trip_hyst,
+ .set_trip_hyst = mlxsw_thermal_set_trip_hyst,
};
static int mlxsw_thermal_get_max_state(struct thermal_cooling_device *cdev,