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pwm: Mark all devices as "might sleep"

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Commit d1cd21427747 ("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: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Thierry Reding 2016-01-21 15:04:59 +01:00
parent 074726402b
commit ff01c944cf
1 changed files with 1 additions and 1 deletions
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2
drivers/pwm/core.c
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@ -889,7 +889,7 @@ EXPORT_SYMBOL_GPL(devm_pwm_put);
*/
bool pwm_can_sleep(struct pwm_device *pwm)
{
return pwm->chip->can_sleep;
return true;
}
EXPORT_SYMBOL_GPL(pwm_can_sleep);