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hwmon: (max1619) Mask valid alarm bits

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Bit 0, 5, and 6 in the status register are reserved and, if set, do not
indicate an alarm. Bit 7 is the 'busy' bit and also does not indicate
an alarm. Mask the non-alarm bits to avoid reporting them to userspace.

Cc: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2024-07-28 07:09:54 -07:00
parent 216147e624
commit 02c3c4e702
1 changed files with 1 additions and 0 deletions
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drivers/hwmon/max1619.c
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@ -112,6 +112,7 @@ static struct max1619_data *max1619_update_device(struct device *dev)
config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG); config = i2c_smbus_read_byte_data(client, MAX1619_REG_R_CONFIG);
if (!(config & 0x20)) if (!(config & 0x20))
data->alarms ^= 0x02; data->alarms ^= 0x02;
data->alarms &= 0x1e;
data->last_updated = jiffies; data->last_updated = jiffies;
data->valid = true; data->valid = true;