[RFC PATCH 02/15] pwm: fix pwm_get_period and pwm_get_duty_cycle prototypes

Boris Brezillon
2015-07-01T08:21:48Z

The pwm argument is not modified in pwm_get helpers, make it a const
argument so that they can be used from the sysfs functions.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
include/linux/pwm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index ec34f4d..d8f6913 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -103,7 +103,7 @@ static inline void pwm_set_period(struct pwm_device *pwm, unsigned int period)
pwm->period = period;
}

-static inline unsigned int pwm_get_period(struct pwm_device *pwm)
+static inline unsigned int pwm_get_period(const struct pwm_device *pwm)
{
return pwm ? pwm->period : 0;
}
@@ -114,7 +114,7 @@ static inline void pwm_set_duty_cycle(struct pwm_device *pwm, unsigned int duty)
pwm->duty_cycle = duty;
}

-static inline unsigned int pwm_get_duty_cycle(struct pwm_device *pwm)
+static inline unsigned int pwm_get_duty_cycle(const struct pwm_device *pwm)
{
return pwm ? pwm->duty_cycle : 0;
}
--
1.9.1