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| author | Takashi Iwai <tiwai@suse.de> | 2019-02-28 13:30:55 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-02-28 13:30:55 +0100 |
| commit | 70395a96bd882d8dba669f99b5cec0008690accd (patch) | |
| tree | 37f3a4c2cf35828f153f3ce59c3daa4f39241c32 /drivers/input/misc/pwm-vibra.c | |
| parent | f97a0944a72b26a2bece72516294e112a890f98a (diff) | |
| parent | 3146089d235b304e665dc551472ae9cb9ab58572 (diff) | |
Merge tag 'asoc-v5.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: More changes for v5.1
Another batch of changes for ASoC, no big core changes - it's mainly
small fixes and improvements for individual drivers.
- A big refresh and cleanup of the Samsung drivers, fixing a number of
issues which allow the driver to be used with a wider range of
userspaces.
- Fixes for the Intel drivers to make them more standard so less likely
to get bitten by core issues.
- New driver for Cirrus Logic CS35L26.
Diffstat (limited to 'drivers/input/misc/pwm-vibra.c')
| -rw-r--r-- | drivers/input/misc/pwm-vibra.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/input/misc/pwm-vibra.c b/drivers/input/misc/pwm-vibra.c index 55da191ae550..dbb6d9e1b947 100644 --- a/drivers/input/misc/pwm-vibra.c +++ b/drivers/input/misc/pwm-vibra.c @@ -34,6 +34,7 @@ struct pwm_vibrator { struct work_struct play_work; u16 level; u32 direction_duty_cycle; + bool vcc_on; }; static int pwm_vibrator_start(struct pwm_vibrator *vibrator) @@ -42,10 +43,13 @@ static int pwm_vibrator_start(struct pwm_vibrator *vibrator) struct pwm_state state; int err; - err = regulator_enable(vibrator->vcc); - if (err) { - dev_err(pdev, "failed to enable regulator: %d", err); - return err; + if (!vibrator->vcc_on) { + err = regulator_enable(vibrator->vcc); + if (err) { + dev_err(pdev, "failed to enable regulator: %d", err); + return err; + } + vibrator->vcc_on = true; } pwm_get_state(vibrator->pwm, &state); @@ -76,11 +80,14 @@ static int pwm_vibrator_start(struct pwm_vibrator *vibrator) static void pwm_vibrator_stop(struct pwm_vibrator *vibrator) { - regulator_disable(vibrator->vcc); - if (vibrator->pwm_dir) pwm_disable(vibrator->pwm_dir); pwm_disable(vibrator->pwm); + + if (vibrator->vcc_on) { + regulator_disable(vibrator->vcc); + vibrator->vcc_on = false; + } } static void pwm_vibrator_play_work(struct work_struct *work) |