[PATCH 1/4] regulator: core: Support trying to get close to a certain voltage

[Mark Brown]

On Wed, Dec 10, 2014 at 12:58:02PM -0800, Doug Anderson wrote:
> There are some cases where you'd like to set a voltage for a regulator
> and a range of voltages are OK, but you'd really like to get as close
> as you can to a specific voltage if at all possible.

This looks like regulator_set_voltage_tol(), why not use that?  The spec
probably even has a number for the tolerance, or you can make one up.
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