atmel_pwm_readl
return atmel_pwm_readl(chip, base + offset);
u32 isr = atmel_pwm_readl(chip, PWM_ISR);
while ((atmel_pwm_readl(atmel_pwm, PWM_SR) & (1 << pwm->hwpwm)) &&
sr = atmel_pwm_readl(atmel_pwm, PWM_SR);
sr = atmel_pwm_readl(atmel_pwm, PWM_SR) & PWM_SR_ALL_CH_MASK;