Re: [PATCH 2/2] regulator: Propagate uA_load requirements up supplychain

From: Mark Brown
Date: Mon Mar 28 2011 - 14:03:00 EST


On Mon, Mar 28, 2011 at 08:34:42AM -0700, David Collins wrote:
> regulator_set_optimum_mode currently only determines the load
> on the specified regulator. Physically however, this current
> must be provided by regulators further up the supply chain.
> Add code to handle uA_load propagation up through the regulator
> supply chain.

We can't do this - current doesn't map 1:1 through a regulator, the
power consumption will map through but obviously there's a voltage
change involved and the regulators will not be 100% efficient so there
will also be some overhead from the chipld regulator. The child
regulator needs to do the mapping in a regulator specific fashion.
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