I've been playing around with getting the bq27x00_battery driver working
in shr-core. I have a working module now, but I will need someone to
hold my hand to submit a patch.
My kernel has bq27x00_battery and platform battery configured as modules
and I switch which module I autoload for testing. Having them as
modules seems to work fine.
I was seeing a freeze when I plugged in or unplugged the usb cable.
Holding down the power button would not turn it off.
There were only 2 lines in bq27x00_external_power_changed which seemed
like a likely culprit since the freeze occured when the external power
supply changed. I noticed that one of the calls is made elsewhere in
the file, but is protected by a mutex. Using the same mutex in
bq27x00_external_power_changed seems to make it stable, though the
charge LED on the gta02 seems to be confused. It lights when the cable
is unplugged. I'm not sure yet if that is a userspace issue or
something else is wrong in the driver. It seems like most people use
this driver for bq27500 and bq27000 may have been neglected.
Ben
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