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Input: max8997 - simplify open coding of a division using up to 64 divisions 

The for loop is just a complicate way to express a division. Replace it
by the actual division which is both simpler to understand for a human
and more efficient for a CPU to calculate.

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210316212233.50765-1-uwe@kleine-koenig.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Uwe Kleine-König 2021-03-21 15:24:12 -07:00 committed by Dmitry Torokhov
parent 8b488ef295
commit 8f50743fee
1 changed files with 2 additions and 7 deletions
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9
drivers/input/misc/max8997_haptic.c
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@ -61,15 +61,10 @@ static int max8997_haptic_set_duty_cycle(struct max8997_haptic *chip)
unsigned int duty = chip->pwm_period * chip->level / 100;
ret = pwm_config(chip->pwm, duty, chip->pwm_period);
} else {
int i;
u8 duty_index = 0;
for (i = 0; i <= 64; i++) {
if (chip->level <= i * 100 / 64) {
duty_index = i;
break;
}
}
duty_index = DIV_ROUND_UP(chip->level * 64, 100);
switch (chip->internal_mode_pattern) {
case 0:
max8997_write_reg(chip->client,