diff options
Diffstat (limited to 'drivers/pwm/pwm-stm32.c')
| -rw-r--r-- | drivers/pwm/pwm-stm32.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c index ec2c05c9ee7a..4b148f0afeb9 100644 --- a/drivers/pwm/pwm-stm32.c +++ b/drivers/pwm/pwm-stm32.c @@ -88,7 +88,7 @@ static int stm32_pwm_round_waveform_tohw(struct pwm_chip *chip, rate = clk_get_rate(priv->clk); - if (active_channels(priv) & ~(1 << ch * 4)) { + if (active_channels(priv) & ~TIM_CCER_CCxE(ch + 1)) { u64 arr; /* @@ -180,11 +180,11 @@ static int stm32_pwm_round_waveform_tohw(struct pwm_chip *chip, wfhw->ccr = min_t(u64, ccr, wfhw->arr + 1); +out: dev_dbg(&chip->dev, "pwm#%u: %lld/%lld [+%lld] @%lu -> CCER: %08x, PSC: %08x, ARR: %08x, CCR: %08x\n", pwm->hwpwm, wf->duty_length_ns, wf->period_length_ns, wf->duty_offset_ns, rate, wfhw->ccer, wfhw->psc, wfhw->arr, wfhw->ccr); -out: clk_disable(priv->clk); return ret; @@ -213,10 +213,10 @@ static int stm32_pwm_round_waveform_fromhw(struct pwm_chip *chip, { const struct stm32_pwm_waveform *wfhw = _wfhw; struct stm32_pwm *priv = to_stm32_pwm_dev(chip); + unsigned long rate = clk_get_rate(priv->clk); unsigned int ch = pwm->hwpwm; if (wfhw->ccer & TIM_CCER_CCxE(ch + 1)) { - unsigned long rate = clk_get_rate(priv->clk); u64 ccr_ns; /* The result doesn't overflow for rate >= 15259 */ @@ -236,17 +236,16 @@ static int stm32_pwm_round_waveform_fromhw(struct pwm_chip *chip, wf->duty_length_ns = ccr_ns; wf->duty_offset_ns = 0; } - - dev_dbg(&chip->dev, "pwm#%u: CCER: %08x, PSC: %08x, ARR: %08x, CCR: %08x @%lu -> %lld/%lld [+%lld]\n", - pwm->hwpwm, wfhw->ccer, wfhw->psc, wfhw->arr, wfhw->ccr, rate, - wf->duty_length_ns, wf->period_length_ns, wf->duty_offset_ns); - } else { *wf = (struct pwm_waveform){ .period_length_ns = 0, }; } + dev_dbg(&chip->dev, "pwm#%u: CCER: %08x, PSC: %08x, ARR: %08x, CCR: %08x @%lu -> %lld/%lld [+%lld]\n", + pwm->hwpwm, wfhw->ccer, wfhw->psc, wfhw->arr, wfhw->ccr, rate, + wf->duty_length_ns, wf->period_length_ns, wf->duty_offset_ns); + return 0; } |