Messages in this thread | | | Date | Sat, 17 Mar 2018 21:46:04 +0100 | From | Paul Cercueil <> | Subject | Re: [PATCH 2/4] pwm: pwm-jz4740: Implement set_polarity |
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Hi,
Could this patchset get a bit of love? I have other changes waiting for this patchset to get in, so it'd be great to see it in 4.17-rc1.
Thanks, -Paul
Le sam. 6 janv. 2018 à 17:58, Paul Cercueil <paul@crapouillou.net> a écrit : > This permits clients of this driver to specify the polarity to use for > their PWM channel. > > Signed-off-by: Paul Cercueil <paul@crapouillou.net> > --- > drivers/pwm/pwm-jz4740.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c > index 2e41ba213f39..6539c001fe32 100644 > --- a/drivers/pwm/pwm-jz4740.c > +++ b/drivers/pwm/pwm-jz4740.c > @@ -130,10 +130,29 @@ static int jz4740_pwm_config(struct pwm_chip > *chip, struct pwm_device *pwm, > return 0; > } > > +static int jz4740_pwm_set_polarity(struct pwm_chip *chip, > + struct pwm_device *pwm, enum pwm_polarity polarity) > +{ > + uint32_t ctrl = jz4740_timer_get_ctrl(pwm->pwm); > + > + switch (polarity) { > + case PWM_POLARITY_NORMAL: > + ctrl &= ~JZ_TIMER_CTRL_PWM_ACTIVE_LOW; > + break; > + case PWM_POLARITY_INVERSED: > + ctrl |= JZ_TIMER_CTRL_PWM_ACTIVE_LOW; > + break; > + } > + > + jz4740_timer_set_ctrl(pwm->hwpwm, ctrl); > + return 0; > +} > + > static const struct pwm_ops jz4740_pwm_ops = { > .request = jz4740_pwm_request, > .free = jz4740_pwm_free, > .config = jz4740_pwm_config, > + .set_polarity = jz4740_pwm_set_polarity, > .enable = jz4740_pwm_enable, > .disable = jz4740_pwm_disable, > .owner = THIS_MODULE, > -- > 2.11.0 >
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