The ucd9000 series chips have gpio pins. Add a gpio chip interface to the ucd
device so that users can query and set the state of the gpio pins.
Add a debugfs interface using the existing pmbus debugfs directory to provide
MFR_STATUS and the status of the gpi faults to users.
Changes since v1:
- dropped dev_err messages
- made gpio chip registration conditional on having gpio pins
- made mfr_status debugfs attribute more simple
Christopher Bostic (2):
hwmon: (ucd9000) Add gpio chip interface
hwmon: (ucd9000) Add debugfs attributes to provide mfr_status
drivers/hwmon/pmbus/ucd9000.c | 341 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 340 insertions(+), 1 deletion(-)
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