Hi Gianluca,
On Wed, Jun 28, 2017 at 12:34 PM, gianluca gianlucarenzi@eurekelettronica.it wrote:
Hello list,
I have some issue using the sgtl5000 on two custom boards based with iMX6. One board has iMX6DL and the other has iMX6QP.
The issue is I have a (dramatically high) strange value on mixer settings (looks like a int32 limit or similar)
This is the output of amixer:
# amixer Simple mixer control 'Headphone',0 Capabilities: pvolume pswitch pswitch-joined Playback channels: Front Left - Front Right Limits: Playback 0 - 127 Mono: Front Left: Playback 0 [2147483647%] [-51.50dB] [on] Front Right: Playback 0 [2147483647%] [-51.50dB] [on]
Double check the codec hardware: is I2C communication working, are you able to dump the SGTL5000 registers, check the codec power supplies, MCLK, etc.