path: root/drivers/pwm
diff options
authorHans de Goede <hdegoede@redhat.com>2018-10-12 10:12:28 (GMT)
committerThierry Reding <thierry.reding@gmail.com>2018-10-12 10:32:12 (GMT)
commit42885551cedb45961879d2fc3dc3c4dc545cc23e (patch)
treed6ef2e64ef72bab8aefc6e6c4627d623359326e6 /drivers/pwm
parent6a425ecd19a2c0e19a501323216ecf987de07841 (diff)
pwm: lpss: Release runtime-pm reference from the driver's remove callback
For each pwm output which gets enabled through pwm_lpss_apply(), we do a pm_runtime_get_sync(). This commit adds pm_runtime_put() calls to pwm_lpss_remove() to balance these when the driver gets removed with some of the outputs still enabled. Fixes: f080be27d7d9 ("pwm: lpss: Add support for runtime PM") Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c
index e602835..723ca9d 100644
--- a/drivers/pwm/pwm-lpss.c
+++ b/drivers/pwm/pwm-lpss.c
@@ -205,6 +205,12 @@ EXPORT_SYMBOL_GPL(pwm_lpss_probe);
int pwm_lpss_remove(struct pwm_lpss_chip *lpwm)
+ int i;
+ for (i = 0; i < lpwm->info->npwm; i++) {
+ if (pwm_is_enabled(&lpwm->chip.pwms[i]))
+ pm_runtime_put(lpwm->chip.dev);
+ }
return pwmchip_remove(&lpwm->chip);

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