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hwmon: (lm90) Do not report 'busy' status bit as alarm

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Bit 7 of the status register indicates that the chip is busy
doing a conversion. It does not indicate an alarm status.
Stop reporting it as alarm status bit.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2021-12-03 13:42:22 -08:00
parent da7dc05684
commit cdc5287aca
1 changed files with 2 additions and 1 deletions
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3
drivers/hwmon/lm90.c
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@ -200,6 +200,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
#define LM90_STATUS_RHIGH (1 << 4) /* remote high temp limit tripped */ #define LM90_STATUS_RHIGH (1 << 4) /* remote high temp limit tripped */
#define LM90_STATUS_LLOW (1 << 5) /* local low temp limit tripped */ #define LM90_STATUS_LLOW (1 << 5) /* local low temp limit tripped */
#define LM90_STATUS_LHIGH (1 << 6) /* local high temp limit tripped */ #define LM90_STATUS_LHIGH (1 << 6) /* local high temp limit tripped */
#define LM90_STATUS_BUSY (1 << 7) /* conversion is ongoing */
#define MAX6696_STATUS2_R2THRM (1 << 1) /* remote2 THERM limit tripped */ #define MAX6696_STATUS2_R2THRM (1 << 1) /* remote2 THERM limit tripped */
#define MAX6696_STATUS2_R2OPEN (1 << 2) /* remote2 is an open circuit */ #define MAX6696_STATUS2_R2OPEN (1 << 2) /* remote2 is an open circuit */
@ -820,7 +821,7 @@ static int lm90_update_device(struct device *dev)
val = lm90_read_reg(client, LM90_REG_R_STATUS); val = lm90_read_reg(client, LM90_REG_R_STATUS);
if (val < 0) if (val < 0)
return val; return val;
data->alarms = val; /* lower 8 bit of alarms */ data->alarms = val & ~LM90_STATUS_BUSY;
if (data->kind == max6696) { if (data->kind == max6696) {
val = lm90_select_remote_channel(data, 1); val = lm90_select_remote_channel(data, 1);