[PATCH AUTOSEL 5.15 08/26] hwmon: (lm90) Do not report 'busy' status bit as alarm
From: Sasha Levin <sashal@kernel.org>
Date: 2021-12-27 19:04:19
Also in:
linux-hwmon, stable
Subsystem:
hardware monitoring, lm90 hardware monitor driver, the rest · Maintainers:
Guenter Roeck, Jean Delvare, Linus Torvalds
From: Guenter Roeck <linux@roeck-us.net> [ Upstream commit cdc5287acad9ede121924a9c9313544b80d15842 ] 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: Sasha Levin <sashal@kernel.org> --- drivers/hwmon/lm90.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 567b7c521f388..5a7940d782f26 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c@@ -192,6 +192,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680, #define LM90_STATUS_RHIGH (1 << 4) /* remote high temp limit tripped */ #define LM90_STATUS_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 */
@@ -792,7 +793,7 @@ static int lm90_update_device(struct device *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);
--
2.34.1