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Commit 1acb645e authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

regulator: rc5t583: Simplify rc5t583_set_voltage_time_sel implementation 



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: default avatarAxel Lin <axel.lin@gmail.com>
Acked-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent ee3ed6ef

drivers/regulator/rc5t583-regulator.c

+3 −11
Original line number Diff line number Diff line
@@ -70,17 +70,9 @@ static int rc5t583_set_voltage_time_sel(struct regulator_dev *rdev, 
		unsigned int old_selector, unsigned int new_selector)

{

	struct rc5t583_regulator *reg = 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),

	return DIV_ROUND_UP(abs(new_selector - old_selector) *

			    rdev->desc->uV_step,

			    reg->reg_info->change_uv_per_us);

}