• Lars-Peter Clausen's avatar
    ASoC: Add support for automatically going to BIAS_OFF on suspend · 86dbf2ac
    Lars-Peter Clausen authored
    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: default avatarLars-Peter Clausen <lars@metafoo.de>
    Signed-off-by: default avatarMark Brown <broonie@kernel.org>
    86dbf2ac
soc.h 49.5 KB