| Message ID | 1430818458-26922-1-git-send-email-shobhit.kumar@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, May 05, 2015 at 03:04:18PM +0530, Shobhit Kumar wrote: > In case some drivers are unloading, they can remove lookup tables which > they would have registered during their load time to avoid redundant > entries if loaded again > > v2: Ccing maintainers > v3: Correct the subject line (Lee jones) > > CC: Samuel Ortiz <sameo@linux.intel.com> > Cc: Linus Walleij <linus.walleij@linaro.org> > Cc: Alexandre Courbot <gnurou@gmail.com> > Cc: Thierry Reding <thierry.reding@gmail.com> > Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> > --- > drivers/pwm/core.c | 17 +++++++++++++++++ > include/linux/pwm.h | 5 +++++ > 2 files changed, 22 insertions(+) Applied, thanks. Thierry
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index ba34c7d..d2fe7c8d 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -586,6 +586,23 @@ void pwm_add_table(struct pwm_lookup *table, size_t num) } /** + * pwm_remove_table() - un-register PWM device consumers + * @table: array of consumers to un-register + * @num: number of consumers in table + */ +void pwm_remove_table(struct pwm_lookup *table, size_t num) +{ + mutex_lock(&pwm_lookup_lock); + + while (num--) { + list_del(&table->list); + table++; + } + + mutex_unlock(&pwm_lookup_lock); +} + +/** * pwm_get() - look up and request a PWM device * @dev: device for PWM consumer * @con_id: consumer name diff --git a/include/linux/pwm.h b/include/linux/pwm.h index e90628c..cfe2d8d 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -290,10 +290,15 @@ struct pwm_lookup { #if IS_ENABLED(CONFIG_PWM) void pwm_add_table(struct pwm_lookup *table, size_t num); +void pwm_remove_table(struct pwm_lookup *table, size_t num); #else static inline void pwm_add_table(struct pwm_lookup *table, size_t num) { } + +static inline void pwm_remove_table(struct pwm_lookup *table, size_t num) +{ +} #endif #ifdef CONFIG_PWM_SYSFS
In case some drivers are unloading, they can remove lookup tables which they would have registered during their load time to avoid redundant entries if loaded again v2: Ccing maintainers v3: Correct the subject line (Lee jones) CC: Samuel Ortiz <sameo@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> --- drivers/pwm/core.c | 17 +++++++++++++++++ include/linux/pwm.h | 5 +++++ 2 files changed, 22 insertions(+)