power: regulator: tps65941: use function callbacks for conversion ops

Use function callbacks for volt2val, val2volt and slewrate lookups.
This makes it easier to add support for TPS65224 PMIC regulators.

Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
1 file changed