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    Subject[PATCH] regulator: tps62360: Simplify tps62360_set_voltage_time_sel implementation
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    For linear mappings, we can use below equation to get the voltage difference
    between new_selector and old_selector:

    abs(new_selector - old_selector) * rdev->desc->uV_step

    Signed-off-by: Axel Lin <axel.lin@gmail.com>
    ---
    drivers/regulator/tps62360-regulator.c | 13 +++----------
    1 file changed, 3 insertions(+), 10 deletions(-)

    diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
    index e534269..d044a58 100644
    --- a/drivers/regulator/tps62360-regulator.c
    +++ b/drivers/regulator/tps62360-regulator.c
    @@ -179,17 +179,10 @@ static int tps62360_set_voltage_time_sel(struct regulator_dev *rdev,
    unsigned int old_selector, unsigned int new_selector)
    {
    struct tps62360_chip *tps = rdev_get_drvdata(rdev);
    - int old_uV, new_uV;

    - old_uV = regulator_list_voltage_linear(rdev, old_selector);
    - if (old_uV < 0)
    - return old_uV;
    -
    - new_uV = regulator_list_voltage_linear(rdev, new_selector);
    - if (new_uV < 0)
    - return new_uV;
    -
    - return DIV_ROUND_UP(abs(old_uV - new_uV), tps->change_uv_per_us);
    + return DIV_ROUND_UP(abs(new_selector - old_selector) *
    + rdev->desc->uV_step,
    + tps->change_uv_per_us);
    }

    static int tps62360_set_mode(struct regulator_dev *rdev, unsigned int mode)
    --
    1.7.9.5




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