DW9807_CTRL_STEPS
for (val = dw9807_dev->current_val & ~(DW9807_CTRL_STEPS - 1);
val >= 0; val -= DW9807_CTRL_STEPS) {
for (val = dw9807_dev->current_val % DW9807_CTRL_STEPS;
val < dw9807_dev->current_val + DW9807_CTRL_STEPS - 1;
val += DW9807_CTRL_STEPS) {