On Wed, Mar 30, 2016 at 10:03:38PM +0200, Boris Brezillon wrote: > The PWM state, represented by its period, duty_cycle and polarity, > is currently directly stored in the PWM device. > Declare a pwm_state structure embedding those field so that we can later > use this struct to atomically update all the PWM parameters at once. > > All pwm_get_xxx() helpers are now implemented as wrappers around > pwm_get_state(). > > Signed-off-by: Boris Brezillon <boris.brezil...@free-electrons.com> > --- > drivers/pwm/core.c | 8 ++++---- > include/linux/pwm.h | 54 > +++++++++++++++++++++++++++++++++++++++++------------ > 2 files changed, 46 insertions(+), 16 deletions(-) > > diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c > index 6433059..f3f91e7 100644 > --- a/drivers/pwm/core.c > +++ b/drivers/pwm/core.c > @@ -268,7 +268,7 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, > pwm->chip = chip; > pwm->pwm = chip->base + i; > pwm->hwpwm = i; > - pwm->polarity = polarity; > + pwm->state.polarity = polarity;
Would this not more correctly be assigned to pwm->args.polarity? After all this is setting up the "initial" state, much like DT or the lookup tables would for duty cycle and period. Thierry
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