1. 10 Mar, 2022 1 commit
    • Mark Brown's avatar
      ALSA/ASoC/SOF/Intel: improve support for ES8336-based platforms · efb1a2d3
      Mark Brown authored
      Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
      
      This patchset adds a number of improvements for ES8336-based Intel
      platforms, which are not well supported at all in Linux. Since
      Christmas 2021, we've seen dozens of reports of broken audio [1].
      
      The fundamental problem is that those platforms were built for Windows
      but using an I2S codec - instead of the HDaudio traditional
      solution. As a result, we are missing all the usual information needed
      to configure the audio card (which I2S, what configuration, DMICs or
      not, etc). The situation is similar to Baytrail with all possible
      permutations enabled.
      
      Some of the information can be discovered by checking the contents of
      the 'NHLT' ACPI table. This helps discover at run-time which SSP to
      use, and the number of microphones present. This NHLT-based solution
      helps remove quirks that were added earlier.
      
      Unfortunately, there are still a number of platform properties that
      are not described by ACPI, just as GPIOs used for speakers, jack
      detection inversion, etc. For some case, quirks are still provided in
      the machine drivers.
      
      Additional work will likely be needed, e.g. to detect which MCLK needs
      to be used, refine the UCM settings, add the ES8326 codec driver, but
      this is a first-step towards an 'out of the box' experience on Intel
      platforms.
      
      This patchset touches the sound/hda/intel-nhlt parts but should IMHO
      be merged in the ASoC tree.
      
      I would like to acknowledge the help of Nikolai Kostrigin, Mauro
      Carvalho Chehab, Huajun Li, David Yang (@yangxiaohua2009) and other
      GitHub testers.
      
      [1] https://github.com/thesofproject/linux/issues?q=is%3Aissue+is%3Aopen+label%3A%22codec+ES8336%22
      efb1a2d3
  2. 09 Mar, 2022 27 commits
  3. 08 Mar, 2022 12 commits