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Commit 2cb8d9d8 authored by Guenter Roeck's avatar Guenter Roeck
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hwmon: (lm90) Add flag to indicate support for minimum temperature limits 

A flag indicating support for minimum temperature limits doesn't cost much
and will enable us to add support for MAX6642 to the lm90 driver.
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 399a8a00
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Showing with 31 additions and 23 deletions
drivers/hwmon/lm90.c
View file @ 2cb8d9d8
......@@ -192,6 +192,7 @@ enum chips { adm1032, adt7461, adt7461a, adt7481, g781, lm86, lm90, lm99,
#define LM90_HAVE_PARTIAL_PEC BIT(12) /* Partial PEC support (adm1032)*/
#define LM90_HAVE_ALARMS BIT(13) /* Create 'alarms' attribute */
#define LM90_HAVE_EXT_UNSIGNED BIT(14) /* extended unsigned temperature*/
#define LM90_HAVE_LOW BIT(15) /* low limits */
/* LM90 status */
#define LM90_STATUS_LTHRM BIT(0) /* local THERM limit tripped */
......@@ -369,7 +370,8 @@ static const struct lm90_params lm90_params[] = {
[adm1032] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_CRIT
| LM90_HAVE_PARTIAL_PEC | LM90_HAVE_ALARMS,
| LM90_HAVE_PARTIAL_PEC | LM90_HAVE_ALARMS
| LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 10,
},
......@@ -382,7 +384,7 @@ static const struct lm90_params lm90_params[] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP
| LM90_HAVE_CRIT | LM90_HAVE_PARTIAL_PEC
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 10,
.resolution = 10,
......@@ -390,7 +392,8 @@ static const struct lm90_params lm90_params[] = {
[adt7461a] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP
| LM90_HAVE_CRIT | LM90_HAVE_PEC | LM90_HAVE_ALARMS,
| LM90_HAVE_CRIT | LM90_HAVE_PEC | LM90_HAVE_ALARMS
| LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 10,
},
......@@ -398,7 +401,7 @@ static const struct lm90_params lm90_params[] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP
| LM90_HAVE_UNSIGNED_TEMP | LM90_HAVE_PEC
| LM90_HAVE_TEMP3 | LM90_HAVE_CRIT,
| LM90_HAVE_TEMP3 | LM90_HAVE_CRIT | LM90_HAVE_LOW,
.alert_alarms = 0x1c7c,
.max_convrate = 11,
.resolution = 10,
......@@ -407,58 +410,58 @@ static const struct lm90_params lm90_params[] = {
[g781] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 7,
},
[lm86] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS,
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7b,
.max_convrate = 9,
},
[lm90] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS,
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7b,
.max_convrate = 9,
},
[lm99] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS,
| LM90_HAVE_CRIT | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7b,
.max_convrate = 9,
},
[max6646] = {
.flags = LM90_HAVE_CRIT | LM90_HAVE_BROKEN_ALERT
| LM90_HAVE_EXT_UNSIGNED | LM90_HAVE_ALARMS,
| LM90_HAVE_EXT_UNSIGNED | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 6,
.reg_local_ext = MAX6657_REG_LOCAL_TEMPL,
},
[max6648] = {
.flags = LM90_HAVE_UNSIGNED_TEMP | LM90_HAVE_CRIT
| LM90_HAVE_BROKEN_ALERT,
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 6,
.reg_local_ext = MAX6657_REG_LOCAL_TEMPL,
},
[max6654] = {
.flags = LM90_HAVE_BROKEN_ALERT | LM90_HAVE_ALARMS,
.flags = LM90_HAVE_BROKEN_ALERT | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 7,
.reg_local_ext = MAX6657_REG_LOCAL_TEMPL,
},
[max6657] = {
.flags = LM90_PAUSE_FOR_CONFIG | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 8,
.reg_local_ext = MAX6657_REG_LOCAL_TEMPL,
},
[max6659] = {
.flags = LM90_HAVE_EMERGENCY | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 8,
.reg_local_ext = MAX6657_REG_LOCAL_TEMPL,
......@@ -471,14 +474,14 @@ static const struct lm90_params lm90_params[] = {
*/
.flags = LM90_HAVE_OFFSET | LM90_HAVE_CRIT
| LM90_HAVE_CRIT_ALRM_SWP | LM90_HAVE_BROKEN_ALERT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 7,
},
[max6696] = {
.flags = LM90_HAVE_EMERGENCY
| LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3 | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x1c7c,
.max_convrate = 6,
.reg_status2 = MAX6696_REG_STATUS2,
......@@ -486,7 +489,7 @@ static const struct lm90_params lm90_params[] = {
},
[w83l771] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 8,
},
......@@ -497,7 +500,7 @@ static const struct lm90_params lm90_params[] = {
* be set).
*/
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7b,
.max_convrate = 9,
.reg_local_ext = SA56004_REG_LOCAL_TEMPL,
......@@ -505,7 +508,7 @@ static const struct lm90_params lm90_params[] = {
[tmp451] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP | LM90_HAVE_CRIT
| LM90_HAVE_UNSIGNED_TEMP | LM90_HAVE_ALARMS,
| LM90_HAVE_UNSIGNED_TEMP | LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 9,
.resolution = 12,
......@@ -514,7 +517,7 @@ static const struct lm90_params lm90_params[] = {
[tmp461] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP | LM90_HAVE_CRIT
| LM90_HAVE_ALARMS,
| LM90_HAVE_ALARMS | LM90_HAVE_LOW,
.alert_alarms = 0x7c,
.max_convrate = 9,
.resolution = 12,
......@@ -2163,10 +2166,15 @@ static int lm90_probe(struct i2c_client *client)
info->type = hwmon_temp;
info->config = data->channel_config;
data->channel_config[0] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM;
data->channel_config[1] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | HWMON_T_FAULT;
data->channel_config[0] = HWMON_T_INPUT | HWMON_T_MAX |
HWMON_T_MAX_ALARM;
data->channel_config[1] = HWMON_T_INPUT | HWMON_T_MAX |
HWMON_T_MAX_ALARM | HWMON_T_FAULT;
if (data->flags & LM90_HAVE_LOW) {
data->channel_config[0] |= HWMON_T_MIN | HWMON_T_MIN_ALARM;
data->channel_config[1] |= HWMON_T_MIN | HWMON_T_MIN_ALARM;
}
if (data->flags & LM90_HAVE_CRIT) {
data->channel_config[0] |= HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_CRIT_HYST;
......
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