[alsa-devel] HELP:How to power down TWL5030 Voice/Bluetooth sidetone PGA?

[onlyfever]

>
> Can you check with:
> amixer | grep -A 6  Loopback
>
Simple mixer control 'Left Digital Loopback',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 7
  Mono: 0 [0%] [-99999.99dB]
Simple mixer control 'Left1 Analog Loopback',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Left2 Analog Loopback',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'PreDriv',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
--
Simple mixer control 'Right Digital Loopback',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 7
  Mono: 0 [0%] [-99999.99dB]
Simple mixer control 'Right1 Analog Loopback',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Right2 Analog Loopback',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'TX1',0
  Capabilities: cenum
  Items: 'Analog' 'Digimic0'
--
Simple mixer control 'Voice Analog Loopback',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Voice Digital Loopback',0
  Capabilities: volume volume-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 41
  Mono: 0 [0%] [-99999.99dB]