Without these, 'devinfo pwmX' will show enabled=0 even though the PWM
was enabled (for example by a pwm-backlight).
Signed-off-by: Jan Luebbe <jlu@xxxxxxxxxxxxxx>
---
drivers/pwm/core.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 360520195a05..ee65619c4ea5 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -281,6 +281,8 @@ unsigned int pwm_get_duty_cycle(struct pwm_device *pwm)
*/
int pwm_enable(struct pwm_device *pwm)
{
+ pwm->p_enable = 1;
+
if (!test_and_set_bit(FLAG_ENABLED, &pwm->flags))
return pwm->chip->ops->enable(pwm->chip);
@@ -293,6 +295,8 @@ EXPORT_SYMBOL_GPL(pwm_enable);
*/
void pwm_disable(struct pwm_device *pwm)
{
+ pwm->p_enable = 0;
+
if (test_and_clear_bit(FLAG_ENABLED, &pwm->flags))
pwm->chip->ops->disable(pwm->chip);
}
--
2.1.4
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