diff options
| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-07-01 10:21:47 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2015-07-20 09:46:06 +0200 |
| commit | 5c31252c4a86dc591c23f1a951edd52ad791ef0e (patch) | |
| tree | 4a955e92027bbf95cd5fc9222245c0e4c8810a43 /include/linux/pwm.h | |
| parent | d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff) | |
pwm: Add the pwm_is_enabled() helper
Some PWM drivers are testing the PWMF_ENABLED flag. Create a helper
function to hide the logic behind enabled test. This will allow us to
smoothly move from the current approach to an atomic PWM update
approach.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'include/linux/pwm.h')
| -rw-r--r-- | include/linux/pwm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 36262d08a9da..ec34f4d9a9ee 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -92,6 +92,11 @@ struct pwm_device { enum pwm_polarity polarity; }; +static inline bool pwm_is_enabled(const struct pwm_device *pwm) +{ + return test_bit(PWMF_ENABLED, &pwm->flags); +} + static inline void pwm_set_period(struct pwm_device *pwm, unsigned int period) { if (pwm) |