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This adds init/exit function callbacks to pda_power, to
provide a place where the platform code can request/free
GPIOs that it wants to use in the is_ac_online, is_usb_online
and set_charge functions.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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- handle spurious interrupts correctly;
- get rid of pda_power_supplies array, use two variables instead;
- factor out psy_changed() function, it will be used for polling.
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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Add suspend/resume/wakeup support for pda_power.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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Currently pda-power adds both ac and usb power supply units.
This patch fixes it so that psu are added only if they are enabled.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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Per Jeff Garzik request.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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Clean up pda_power interrupt handling:
Prior to this patch, the driver would pass information it needed
to the interrupt handler dev_id pointer, and then prompt forget it
ever did so, recreating that same information after a couple passes
through the timer-based state machine.
This patch removes the redundant checks by passing the
pda_power_supply[] pointer through the state machine. The current
code passed 'irq' through the state machine, as an index to recreate
the pointer, when we could more simply pass around the pointer itself.
This patch makes it easier to remove the 'irq' argument in the future,
in addition to cleaning up the driver today.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Common power driver for PDAs and phones with one or two external
power supplies (AC/USB) connected to main and backup batteries,
and optional builtin charger.
It's used to stop logic duplication through different embedded
devices. So, power supply *logic* is here. pda_power register
power supplies, and will take care about notifying batteries
about power changes through external power interface.
Currently, power consumption legal limits (including USB power
consumption) should be handled by platform code, inside set_charge
function.
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
Signed-off-by: Roman Moravcik <roman.moravcik@gmail.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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