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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 3a7769fe53de..f7c11d2dec37 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -455,7 +455,7 @@ int pwm_set_polarity(struct pwm_device *pwm, enum pwm_polarity polarity)
         if (!pwm->chip->ops->set_polarity)
                 return -ENOSYS;
 
-        if (test_bit(PWMF_ENABLED, &pwm->flags))
+        if (pwm_is_enabled(pwm))
                 return -EBUSY;
 
         err = pwm->chip->ops->set_polarity(pwm->chip, pwm, polarity);
@@ -853,7 +853,7 @@ static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)
                 if (test_bit(PWMF_REQUESTED, &pwm->flags))
                         seq_puts(s, " requested");
 
-                if (test_bit(PWMF_ENABLED, &pwm->flags))
+                if (pwm_is_enabled(pwm))
                         seq_puts(s, " enabled");
 
                 seq_puts(s, "\n");