[PATCH v2 0/2] ALSA: ice1712: support the TerraTec PHASE 88

[Davide Gironi <davide.gironi@gmail.com>]

The TerraTec PHASE 88 uses different front-module hardware from the
EWS88MT even though the ICE1712 driver identifies it as an EWS88MT variant.
The PHASE 88's write-only expander does not respond at the EWS88MT
addresses, and its EEPROM advertises a consumer AC'97 codec and one MIDI
UART that are not representative of the board.

Changes since v1, following Takashi Iwai's review:

  - Add an early, card-specific EEPROM initialization callback and move the
    existing DMX6Fire fixup out of generic chip initialization.
  - Move the PHASE 88 AC'97 and second-MIDI UART EEPROM fixups into the EWS
    driver callback, which runs before generic hardware setup.
  - Drop the consumer-capture NULL guard: the early EEPROM fixup prevents the
    nonexistent consumer PCM from being created in the first place.
  - Use snd_ctl_boolean_mono_info for the Line/Mic boolean control and fix
    the PHASE 88 initialization indentation.
  - Give TS88 its own model string, and update the PHASE 88 expander shadow
    only after a successful write so an I2C error cannot corrupt it.
  - Updated comments style to fit better the other on the module.

The series has two patches: the callback/refactoring patch first, then the
PHASE 88-specific changes.

Testing on the machine with two PHASE 88 racks.

The patch series applies
to the Linux 6.18.58 source. It was built and hardware-tested against the
running Debian 6.12.113 kernel.

Thanks,
Davide Gironi