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hwmon: (lm90) Introduce flag indicating extended temperature support

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[ Upstream commit f347e249fcf920ad6974cbd898e2ec0b366a1c34 ]

A flag indicating extended temperature support makes it easier
to add support for additional chips with this functionality.

Cc: David T. Wilson <david.wilson@nasa.gov>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guenter Roeck 2021-10-21 01:49:50 -07:00 committed by Greg Kroah-Hartman
parent 196df56c3d
commit 2464738d0e
1 changed files with 11 additions and 10 deletions
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21
drivers/hwmon/lm90.c
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@ -186,7 +186,8 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
#define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm */
#define LM90_HAVE_TEMP3 (1 << 6) /* 3rd temperature sensor */
#define LM90_HAVE_BROKEN_ALERT (1 << 7) /* Broken alert */
#define LM90_PAUSE_FOR_CONFIG (1 << 8) /* Pause conversion for config */
#define LM90_HAVE_EXTENDED_TEMP (1 << 8) /* extended temperature support*/
#define LM90_PAUSE_FOR_CONFIG (1 << 9) /* Pause conversion for config */
/* LM90 status */
#define LM90_STATUS_LTHRM (1 << 0) /* local THERM limit tripped */
@ -359,7 +360,7 @@ static const struct lm90_params lm90_params[] = {
},
[adt7461] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT,
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
.alert_alarms = 0x7c,
.max_convrate = 10,
},
@ -431,7 +432,7 @@ static const struct lm90_params lm90_params[] = {
},
[tmp451] = {
.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
| LM90_HAVE_BROKEN_ALERT,
| LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
.alert_alarms = 0x7c,
.max_convrate = 9,
.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
@ -1013,7 +1014,7 @@ static int lm90_get_temp11(struct lm90_data *data, int index)
s16 temp11 = data->temp11[index];
int temp;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
temp = temp_from_u16_adt7461(data, temp11);
else if (data->kind == max6646)
temp = temp_from_u16(temp11);
@ -1047,7 +1048,7 @@ static int lm90_set_temp11(struct lm90_data *data, int index, long val)
if (data->kind == lm99 && index <= 2)
val -= 16000;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
data->temp11[index] = temp_to_u16_adt7461(data, val);
else if (data->kind == max6646)
data->temp11[index] = temp_to_u8(val) << 8;
@ -1074,7 +1075,7 @@ static int lm90_get_temp8(struct lm90_data *data, int index)
s8 temp8 = data->temp8[index];
int temp;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
temp = temp_from_u8_adt7461(data, temp8);
else if (data->kind == max6646)
temp = temp_from_u8(temp8);
@ -1107,7 +1108,7 @@ static int lm90_set_temp8(struct lm90_data *data, int index, long val)
if (data->kind == lm99 && index == 3)
val -= 16000;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
data->temp8[index] = temp_to_u8_adt7461(data, val);
else if (data->kind == max6646)
data->temp8[index] = temp_to_u8(val);
@ -1125,7 +1126,7 @@ static int lm90_get_temphyst(struct lm90_data *data, int index)
{
int temp;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
temp = temp_from_u8_adt7461(data, data->temp8[index]);
else if (data->kind == max6646)
temp = temp_from_u8(data->temp8[index]);
@ -1145,7 +1146,7 @@ static int lm90_set_temphyst(struct lm90_data *data, long val)
int temp;
int err;
if (data->kind == adt7461 || data->kind == tmp451)
if (data->flags & LM90_HAVE_EXTENDED_TEMP)
temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]);
else if (data->kind == max6646)
temp = temp_from_u8(data->temp8[LOCAL_CRIT]);
@ -1698,7 +1699,7 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
lm90_set_convrate(client, data, 500); /* 500ms; 2Hz conversion rate */
/* Check Temperature Range Select */
if (data->kind == adt7461 || data->kind == tmp451) {
if (data->flags & LM90_HAVE_EXTENDED_TEMP) {
if (config & 0x04)
data->flags |= LM90_FLAG_ADT7461_EXT;
}