Brandon Wyman b261474f66 hwmon: (pmbus) Add Vin unit off handling
[ Upstream commit a5436af598779219b375c1977555c82def1c35d0 ]

If there is an input undervoltage fault, reported in STATUS_INPUT
command response, there is quite likely a "Unit Off For Insufficient
Input Voltage" condition as well.

Add a constant for bit 3 of STATUS_INPUT. Update the Vin limit
attributes to include both bits in the mask for clearing faults.

If an input undervoltage fault occurs, causing a unit off for
insufficient input voltage, but the unit is off bit is not cleared, the
STATUS_WORD will not be updated to clear the input fault condition.
Including the unit is off bit (bit 3) allows for the input fault
condition to completely clear.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Link: https://lore.kernel.org/r/20220317232123.2103592-1-bjwyman@gmail.com
Fixes: b4ce237b7f7d3 ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers")
[groeck: Dropped unnecessary ()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-15 14:14:44 +02:00
..
2018-06-12 16:19:22 -07:00
2018-06-12 16:19:22 -07:00
2018-06-12 16:19:22 -07:00
2017-04-02 07:01:53 -07:00
2017-04-02 07:01:53 -07:00
2017-04-13 06:09:26 -07:00
2018-03-22 09:33:24 -07:00
2018-08-23 13:52:46 -07:00
2017-10-29 18:36:03 -07:00
2018-03-10 19:00:14 -08:00
2015-06-21 22:54:53 -07:00
2016-12-02 13:28:05 -08:00