diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-09-04 21:44:06 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-09-04 23:10:25 +0400 |
| commit | 86dbf2ac6fcb2d2932d4610f2dfe0954aa0633f7 (patch) | |
| tree | eca1064e4c727feb98ab402f81f3f8b83e3f0bd1 /include/sound/soc-dapm.h | |
| parent | 1c325f771a88579f227fe017e4ee77d852cf5435 (diff) | |
| download | linux-86dbf2ac6fcb2d2932d4610f2dfe0954aa0633f7.tar.xz | |
ASoC: Add support for automatically going to BIAS_OFF on suspend
There is a substantial amount of drivers that in go to SND_SOC_BIAS_OFF on
suspend and go back to SND_SOC_BIAS_SUSPEND on resume (Often this is even
the only thing done in the suspend and resume handlers). This patch
introduces a new suspend_bias_off flag, which when set by a driver will let
the ASoC core automatically put the device's DAPM context at the
SND_SOC_BIAS_OFF level during suspend. Once the device is resumed the DAPM
context will go back to SND_SOC_BIAS_STANDBY (if the context is idle,
otherwise to SND_SOC_BIAS_ON).
This will allow us to remove a fair bit of duplicated code from the drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound/soc-dapm.h')
| -rw-r--r-- | include/sound/soc-dapm.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index aac04ff84eea..f955d65c5656 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -587,7 +587,8 @@ struct snd_soc_dapm_context { enum snd_soc_bias_level suspend_bias_level; struct delayed_work delayed_work; unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */ - + /* Go to BIAS_OFF in suspend if the DAPM context is idle */ + unsigned int suspend_bias_off:1; void (*seq_notifier)(struct snd_soc_dapm_context *, enum snd_soc_dapm_type, int); |