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regulator: arizona-micsupp: Fix choosing selector in arizona_micsupp_map_voltage 

If min_uV is in the range of: 3250001~3269999,
current code uses the equation:
        selector = DIV_ROUND_UP(min_uV - 1700000, 50000);
Then selector will be 32.
Then arizona_micsupp_list_voltage returns -EINVAL for this case which is wrong.

This patch fixes this issue:
If min_uV > 3200000, selector should be ARIZONA_MICSUPP_MAX_SELECTOR.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Axel Lin 2012-06-26 18:37:58 +08:00 committed by Mark Brown
parent 1910efa1d0
commit 7f217d36dc
1 changed files with 1 additions and 1 deletions
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2
drivers/regulator/arizona-micsupp.c
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@ -57,7 +57,7 @@ static int arizona_micsupp_map_voltage(struct regulator_dev *rdev,
if (min_uV < 1700000)
min_uV = 1700000;
if (min_uV >= 3300000)
if (min_uV > 3200000)
selector = ARIZONA_MICSUPP_MAX_SELECTOR;
else
selector = DIV_ROUND_UP(min_uV - 1700000, 50000);