| Message ID | 1435738921-25027-11-git-send-email-boris.brezillon@free-electrons.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Wed, Jul 01, 2015 at 10:21:56AM +0200, Boris Brezillon wrote: > Add a ->init_state() function to the pwm_ops struct to let PWM drivers > initialize the PWM state attached to a PWM device. > > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > --- > drivers/pwm/core.c | 3 +++ > include/linux/pwm.h | 2 ++ > 2 files changed, 5 insertions(+) > > diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c > index 3e830ce..30631f5 100644 > --- a/drivers/pwm/core.c > +++ b/drivers/pwm/core.c > @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, > pwm->hwpwm = i; > pwm_set_default_polarity(pwm, polarity); > > + if (chip->ops->init_state) > + chip->ops->init_state(chip, pwm); > + > radix_tree_insert(&pwm_tree, pwm->pwm, pwm); > } > > diff --git a/include/linux/pwm.h b/include/linux/pwm.h > index 0f36a06..b47244a 100644 > --- a/include/linux/pwm.h > +++ b/include/linux/pwm.h > @@ -177,6 +177,8 @@ struct pwm_ops { > struct pwm_device *pwm); > void (*disable)(struct pwm_chip *chip, > struct pwm_device *pwm); > + void (*init_state)(struct pwm_chip *chip, > + struct pwm_device *pwm); I think I'd call this reset_state. init has this connotation of setting a set of default values. For reset it's clearer in my opinion that it's resetting to the hardware state. Thierry
On Mon, 20 Jul 2015 11:01:24 +0200 Thierry Reding <thierry.reding@gmail.com> wrote: > On Wed, Jul 01, 2015 at 10:21:56AM +0200, Boris Brezillon wrote: > > Add a ->init_state() function to the pwm_ops struct to let PWM drivers > > initialize the PWM state attached to a PWM device. > > > > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > > --- > > drivers/pwm/core.c | 3 +++ > > include/linux/pwm.h | 2 ++ > > 2 files changed, 5 insertions(+) > > > > diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c > > index 3e830ce..30631f5 100644 > > --- a/drivers/pwm/core.c > > +++ b/drivers/pwm/core.c > > @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, > > pwm->hwpwm = i; > > pwm_set_default_polarity(pwm, polarity); > > > > + if (chip->ops->init_state) > > + chip->ops->init_state(chip, pwm); > > + > > radix_tree_insert(&pwm_tree, pwm->pwm, pwm); > > } > > > > diff --git a/include/linux/pwm.h b/include/linux/pwm.h > > index 0f36a06..b47244a 100644 > > --- a/include/linux/pwm.h > > +++ b/include/linux/pwm.h > > @@ -177,6 +177,8 @@ struct pwm_ops { > > struct pwm_device *pwm); > > void (*disable)(struct pwm_chip *chip, > > struct pwm_device *pwm); > > + void (*init_state)(struct pwm_chip *chip, > > + struct pwm_device *pwm); > > I think I'd call this reset_state. init has this connotation of setting > a set of default values. For reset it's clearer in my opinion that it's > resetting to the hardware state. I'm fine with the reset_state name, I'll change that in my v2.
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3e830ce..30631f5 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -264,6 +264,9 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->hwpwm = i; pwm_set_default_polarity(pwm, polarity); + if (chip->ops->init_state) + chip->ops->init_state(chip, pwm); + radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 0f36a06..b47244a 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -177,6 +177,8 @@ struct pwm_ops { struct pwm_device *pwm); void (*disable)(struct pwm_chip *chip, struct pwm_device *pwm); + void (*init_state)(struct pwm_chip *chip, + struct pwm_device *pwm); #ifdef CONFIG_DEBUG_FS void (*dbg_show)(struct pwm_chip *chip, struct seq_file *s);
Add a ->init_state() function to the pwm_ops struct to let PWM drivers initialize the PWM state attached to a PWM device. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> --- drivers/pwm/core.c | 3 +++ include/linux/pwm.h | 2 ++ 2 files changed, 5 insertions(+)