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hwmon: (lm90) Use single flag to indicate extended temperature support 

Since temperature conversion functions are now unified, there is no need
to keep "the chip supports a configurable extended temperature range" and
"the chip has extended temperature range enabled" flags separate.
Use a single flag instead to reflect both.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2021-11-22 08:13:58 -08:00
Родитель a8ddcc5750
Коммит b977ed27c4
1 изменённых файлов: 10 добавлений и 15 удалений
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25
drivers/hwmon/lm90.c
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@ -164,11 +164,8 @@ enum chips { adm1032, adt7461, adt7461a, g781, lm86, lm90, lm99,
#define TMP461_REG_CHEN 0x16
#define TMP461_REG_DFC 0x24
/*
* Device flags
*/
#define LM90_FLAG_ADT7461_EXT BIT(0) /* ADT7461 extended mode */
/* Device features */
#define LM90_HAVE_EXTENDED_TEMP BIT(0) /* extended temperature support */
#define LM90_HAVE_OFFSET BIT(1) /* temperature offset register */
#define LM90_HAVE_UNSIGNED_TEMP BIT(2) /* temperatures are unsigned */
#define LM90_HAVE_REM_LIMIT_EXT BIT(3) /* extended remote limit */
@ -176,12 +173,11 @@ enum chips { adm1032, adt7461, adt7461a, g781, lm86, lm90, lm99,
#define LM90_HAVE_EMERGENCY_ALARM BIT(5)/* emergency alarm */
#define LM90_HAVE_TEMP3 BIT(6) /* 3rd temperature sensor */
#define LM90_HAVE_BROKEN_ALERT BIT(7) /* Broken alert */
#define LM90_HAVE_EXTENDED_TEMP BIT(8) /* extended temperature support */
#define LM90_PAUSE_FOR_CONFIG BIT(9) /* Pause conversion for config */
#define LM90_HAVE_CRIT BIT(10) /* Chip supports CRIT/OVERT register */
#define LM90_HAVE_CRIT_ALRM_SWP BIT(11) /* critical alarm bits swapped */
#define LM90_HAVE_PEC BIT(12) /* Chip supports PEC */
#define LM90_HAVE_PARTIAL_PEC BIT(13) /* Partial PEC support (adm1032)*/
#define LM90_PAUSE_FOR_CONFIG BIT(8) /* Pause conversion for config */
#define LM90_HAVE_CRIT BIT(9) /* Chip supports CRIT/OVERT register */
#define LM90_HAVE_CRIT_ALRM_SWP BIT(10) /* critical alarm bits swapped */
#define LM90_HAVE_PEC BIT(11) /* Chip supports PEC */
#define LM90_HAVE_PARTIAL_PEC BIT(12) /* Partial PEC support (adm1032)*/
/* LM90 status */
#define LM90_STATUS_LTHRM BIT(0) /* local THERM limit tripped */
@ -1109,7 +1105,7 @@ static int lm90_temp_from_reg(u32 flags, u16 regval, u8 resolution)
{
int val;
if (flags & LM90_FLAG_ADT7461_EXT)
if (flags & LM90_HAVE_EXTENDED_TEMP)
val = regval - 0x4000;
else if (flags & LM90_HAVE_UNSIGNED_TEMP)
val = regval;
@ -1136,7 +1132,7 @@ static u16 lm90_temp_to_reg(u32 flags, long val, u8 resolution)
int fraction = resolution > 8 ?
1000 - DIV_ROUND_CLOSEST(1000, BIT(resolution - 8)) : 0;
if (flags & LM90_FLAG_ADT7461_EXT) {
if (flags & LM90_HAVE_EXTENDED_TEMP) {
val = clamp_val(val, -64000, 191000 + fraction);
val += 64000;
} else if (flags & LM90_HAVE_UNSIGNED_TEMP) {
@ -1766,9 +1762,8 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
if (data->flags & LM90_HAVE_EXTENDED_TEMP) {
if (of_property_read_bool(np, "ti,extended-range-enable"))
config |= 0x04;
if (config & 0x04)
data->flags |= LM90_FLAG_ADT7461_EXT;
if (!(config & 0x04))
data->flags &= ~LM90_HAVE_EXTENDED_TEMP;
}
/*