regulator: pwm-regulator: Add support for continuous-voltage

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The current version of PWM regulator only supports a static table
approach, where pre-calculated values are supplied by the vendor and
obtained via DT.  The continuous-voltage method takes min_uV and
max_uV, and divides the difference between them up into a number of
slices.  The number of slices depend on how large the duty cycle
register is.  This information is provided by a DT property.

As the name alludes, this provides values for a continuous voltage
range between min_uV and max_uV, which has obvious benefits over
either limited voltage possibilities, or the requirement to provide
a large voltage-table.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Lee Jones 2015-07-07 16:06:51 +01:00 • committed by Mark Brown

parent 02258b8bcb

commit 4773be185a

1 changed files with 106 additions and 8 deletions

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drivers/regulator/pwm-regulator.c

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