[gta04] Meeting minutes for GTA04 discussion 20080411

Andy Green andy at openmoko.com
Tue Apr 15 12:17:12 CEST 2008

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Somebody in the thread at some point said:

| ~ - excessive GPIO to CPU.  All of them need taking care of in Linux, for
| other peripherals GPIO connection may change or conflict on different
| variant designs.  GPIO is always fine if it is in our "core
| architecture" and never changes between variants -- the PMU you mention
| is in this category.  But we need to take some care if we start randomly
|> yes, I agree your point. we should be made a HW_layout is clearly.
|> about HW_layout, sorry, I am not professional...

It's not crazy to put GPIO to CPU... just we need to take care about it.
~ What you actually proposed about PMU type events would indeed have to
go in GPIO is there is no PMU to handle it and no MSP430 either.  But
PMU handles most of it in our case, if the PMU we use is anything like
the pcf50633.

|> if we don't need display image for notify user,
|> then I think we don't need turn on and adjust CPU frequency in

Right it is enough if we just light an LED about charging indication,
saving the current from backlight for charging.

- -Andy
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