提交 ff01c944 编写于 作者: T Thierry Reding

pwm: Mark all devices as "might sleep"

Commit d1cd2142 ("pwm: Set enable state properly on failed call to
enable") introduced a mutex that is needed to protect internal state of
PWM devices. Since that mutex is acquired in pwm_set_polarity() and in
pwm_enable() and might potentially block, all PWM devices effectively
become "might sleep".

It's rather pointless to keep the .can_sleep field around, but given
that there are external users let's postpone the removal for the next
release cycle.
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>
上级 07472640
...@@ -889,7 +889,7 @@ EXPORT_SYMBOL_GPL(devm_pwm_put); ...@@ -889,7 +889,7 @@ EXPORT_SYMBOL_GPL(devm_pwm_put);
*/ */
bool pwm_can_sleep(struct pwm_device *pwm) bool pwm_can_sleep(struct pwm_device *pwm)
{ {
return pwm->chip->can_sleep; return true;
} }
EXPORT_SYMBOL_GPL(pwm_can_sleep); EXPORT_SYMBOL_GPL(pwm_can_sleep);
......
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