mfd: Implement devicetree support for AB8500 Btemp

On Tuesday 11 September 2012, Rajanikanth HV wrote:

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+Supplied-to:
+     This shall be power supply class dependency where in the

runtime battery

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+     properties will be shared across fuel guage and charging

algorithm driver.

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I probably don't understand enough of this, but shouldn't the other

devices

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that are supplied by this have a reference to this node rather than doing
it this way around? Why use strings here instead of phandles?

This is a logical binding w.r.t power supply event change
across energy-management-module drivers where in runtime battery
properties are shared along with uevent notification.
ref: di->btemp_psy.external_power_
changed =
     ab8500_btemp_external_power_changed;
     ref: ab8500_btemp.c

Need for this property:
 btemp, fg and charger updates power-supply properties
 based on the events listed above.
 Event handler invokes power supply change notifier
 which in-turn invokes registered power supply class call-back
 based on the 'supplied_to' string.
 ref:
   power_supply_changed_work(..) ./drivers/power/power_supply_core.c

In this case how to approach through phandle?
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Sorry, I really tried, but I cannot make sense of what you wrote
there. Can you try again and describe in full English sentences
how the hardware blocks are connected and what their purpose is?

	Arnd