regulator: twl: Fix checking voltage range in twl6030smps_set_voltage()

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The voltage selection logic is supposed to find the samllest voltage falls
within specified range. When using equation to calculate vsel, we need to
ensure the requested min_uV meet the range of using the equation.
Otherwise we may select a voltage that is out of specified range.

For example, in the case vsel = 62 means select voltage of 2100000uV.
What we want is to ensure the requested min_uV <= 2100000 rather than checking
max_uV >= 2100000. And this also means in the case min_uV > 2100000, vsel = 62
does not meet the request.

Also calling twl6030smps_list_voltage() for all cases to ensure the selected
voltage still in bounds.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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Axel Lin 2012-07-14 13:37:13 +08:00 • committed by Mark Brown

parent 13407ea802

commit 78292f4ed2

1 changed files with 16 additions and 20 deletions

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drivers/regulator/twl-regulator.c

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