sound-2.6 (alsa-kernel)

  1. Bug #1958019
  2. Comment #704

Comment 704 for bug 1958019

Revision history for this message
In , soyer (soyer-linux-kernel-bugs) wrote :

The TAS2563 works without the firmware (tuning file).
Documentation:
https://www.ti.com/product/TAS2553

However there is an android driver with firmware loading support.
https://git.ti.com/cgit/tas256xsw-android/tas2563-android-driver/
Or a mainline RFC:
https://lkml.org/lkml/2020/6/9/800

The bass speakers can be enabled with:
i2cset 3 0x4c 0x2 0
i2cset 3 0x4d 0x2 0

they are listening on 0x48 too, so in one turn:
i2cset 3 0x48 0x2 0

I don't know how safe it is to use it this way.

They have to be enabled after suspend, and if you plug in-out the headphone (only if auto mute is enabled).