void __iomem *base;
spinlock_t ctrl_lock;
const struct sun4i_pwm_data *data;
- unsigned long next_period[2];
};
static inline struct sun4i_pwm_chip *to_sun4i_pwm_chip(struct pwm_chip *chip)
int ret;
unsigned int delay_us, prescaler = 0;
unsigned long now;
+ unsigned long next_period;
bool bypass;
pwm_get_state(pwm, &cstate);
val = (duty & PWM_DTY_MASK) | PWM_PRD(period);
sun4i_pwm_writel(sun4i_pwm, val, PWM_CH_PRD(pwm->hwpwm));
- sun4i_pwm->next_period[pwm->hwpwm] = jiffies +
+ next_period = jiffies +
nsecs_to_jiffies(cstate.period + 1000);
if (state->polarity != PWM_POLARITY_NORMAL)
/* We need a full period to elapse before disabling the channel. */
now = jiffies;
- if (time_before(now, sun4i_pwm->next_period[pwm->hwpwm])) {
- delay_us = jiffies_to_usecs(sun4i_pwm->next_period[pwm->hwpwm] -
- now);
+ if (time_before(now, next_period)) {
+ delay_us = jiffies_to_usecs(next_period - now);
if ((delay_us / 500) > MAX_UDELAY_MS)
msleep(delay_us / 1000 + 1);
else