76     let numerator = cycles  in cycles_to_ns()
123         let data = chip.drvdata();  in round_waveform_tohw()
124         let mut status = 0;  in round_waveform_tohw()
138         let rate_hz = data.clk.rate().as_hz() as u64;  in round_waveform_tohw()
140         let mut period_cycles = ns_to_cycles(wf.period_length_ns, rate_hz).min(u64::from(u32::MAX));  in round_waveform_tohw()
154         let mut duty_cycles = ns_to_cycles(wf.duty_length_ns, rate_hz).min(u64::from(u32::MAX));  in round_waveform_tohw()
156         let mut ctrl_val = TH1520_PWM_CONTINUOUS_MODE;  in round_waveform_tohw()
158         let is_inversed = wf.duty_length_ns > 0  in round_waveform_tohw()
167         let wfhw = Th1520WfHw {  in round_waveform_tohw()
199         let data = chip.drvdata();  in round_waveform_fromhw()
200         let rate_hz = data.clk.rate().as_hz() as u64;  in round_waveform_fromhw()
213         let duty_cycles = u64::from(wfhw.duty_cycles);  in round_waveform_fromhw()
219             let period_cycles = u64::from(wfhw.period_cycles);  in round_waveform_fromhw()
220             let original_duty_cycles = period_cycles.saturating_sub(duty_cycles);  in round_waveform_fromhw()
236         let data = chip.drvdata();  in read_waveform()
237         let hwpwm = pwm.hwpwm();  in read_waveform()
238         let iomem_accessor = data.iomem.access(parent_dev)?;  in read_waveform()
239         let iomap = iomem_accessor.deref();  in read_waveform()
241         let ctrl = iomap.try_read32(th1520_pwm_ctrl(hwpwm))?;  in read_waveform()
242         let period_cycles = iomap.try_read32(th1520_pwm_per(hwpwm))?;  in read_waveform()
243         let duty_cycles = iomap.try_read32(th1520_pwm_fp(hwpwm))?;  in read_waveform()
245         let wfhw = Th1520WfHw {  in read_waveform()
271         let data = chip.drvdata();  in write_waveform()
272         let hwpwm = pwm.hwpwm();  in write_waveform()
273         let iomem_accessor = data.iomem.access(parent_dev)?;  in write_waveform()
274         let iomap = iomem_accessor.deref();  in write_waveform()
275         let duty_cycles = iomap.try_read32(th1520_pwm_fp(hwpwm))?;  in write_waveform()
276         let was_enabled = duty_cycles != 0;  in write_waveform()
341         let dev = pdev.as_ref();  in probe()
342         let request = pdev.io_request_by_index(0).ok_or(ENODEV)?;  in probe()
344         let clk = Clk::get(dev, None)?;  in probe()
351         let rate_hz = clk.rate().as_hz();  in probe()
366         let chip = pwm::Chip::new(  in probe()