| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 43/47] hwmon: (lm90) Do not report busy status bit as alarm | Date | Mon, 27 Dec 2021 16:31:19 +0100 |
| |
From: Guenter Roeck <linux@roeck-us.net>
commit cdc5287acad9ede121924a9c9313544b80d15842 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/hwmon/lm90.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -200,6 +200,7 @@ enum chips { lm90, adm1032, lm99, lm86, #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_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_R2OPEN (1 << 2) /* remote2 is an open circuit */ @@ -819,7 +820,7 @@ static int lm90_update_device(struct dev val = lm90_read_reg(client, LM90_REG_R_STATUS); if (val < 0) return val; - data->alarms = val; /* lower 8 bit of alarms */ + data->alarms = val & ~LM90_STATUS_BUSY; if (data->kind == max6696) { val = lm90_select_remote_channel(data, 1);
|