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pwm: add option to break the loops when using multiple PWM channels

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commit 7354ab187e added an option to break
the loops when using multiple PWM channels to arm pwm drivers. This adds
the same support to the risc-v pwm drivers.
This commit is contained in:
Norman Rasmussen 2021-12-27 22:56:56 -08:00 committed by Xiang Xiao
parent c2e8c92b25
commit 1e2f067181
2 changed files with 23 additions and 2 deletions
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9
arch/risc-v/src/bl602/bl602_pwm_lowerhalf.c
View File

@ -372,6 +372,15 @@ static int bl602_pwm_start(struct pwm_lowerhalf_s *dev,
#ifdef CONFIG_PWM_NCHANNELS
for (i = 0; i < CONFIG_PWM_NCHANNELS; i++)
{
int8_t chan = info->channels[i].channel;
/* Break the loop if all following channels are not configured */
if (chan == -1)
{
break;
}
bl602_pwm_freq(priv, i, info->frequency);
bl602_pwm_duty(priv, i, info->channels[i].duty);
pwm_channel_enable(i);

16
arch/risc-v/src/mpfs/mpfs_corepwm.c
View File

@ -424,7 +424,7 @@ static int pwm_timer(struct mpfs_pwmtimer_s *priv,
for (i = 0; i < CONFIG_PWM_NCHANNELS; i++)
{
ub32_t duty;
uint8_t channel;
int8_t channel;
uint32_t neg_edge;
channel = info->channels[i].channel;
@ -436,6 +436,13 @@ static int pwm_timer(struct mpfs_pwmtimer_s *priv,
duty = ub16toub32(info->channels[i].duty);
neg_edge = b32toi(duty * period + b32HALF);
/* Break the loop if all following channels are not configured */
if (channel == -1)
{
break;
}
if (channel == 0) /* A value of zero means to skip this channel */
{
continue;
@ -627,7 +634,12 @@ static int pwm_start(struct pwm_lowerhalf_s *dev,
{
/* Set output if channel configured */
uint8_t chan = info->channels[i].channel;
int8_t chan = info->channels[i].channel;
if (chan == -1)
{
break;
}
if (chan != 0 && chan <= priv->nchannels)
{