Hi, Hui

I think we have misalignment here, there are two set of patches

1. The patch to load the firmware from the different path (the patches are 
reverted by LP #1860642.
2. The patch to fix hanging issues when sof_probe_continue() is failed[2].

Intel (Mengdong@Intel) is not planning to backport [2]patches to
sof-v5.0 and mainline-kernel-5.3.

But Canonical should still be able to land[1] patches to load the
firmware from the different path, isn't it? We need to align how we plan
to to ship the firmware, and in which version of path.


[1] https://bugs.launchpad.net/bugs/1860642
[2] Fix sof core error handling (v3, alternative to R1743/1745) by kv2019i · 
Pull Request #1746 · thesofproject/linux - 
https://github.com/thesofproject/linux/pull/1746/commits

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https://bugs.launchpad.net/bugs/1857409

Title:
  alsa/sof: load different firmware on different platforms

Status in HWE Next:
  New
Status in OEM Priority Project:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-oem-osp1 package in Ubuntu:
  Fix Released
Status in linux-oem-osp1 source package in Bionic:
  Confirmed
Status in linux source package in Eoan:
  Confirmed
Status in linux source package in Focal:
  Confirmed

Bug description:
  [Impact]
  In our ubuntu kernel, the sof driver will load the sof-cnl.ri (firmware)
  on all platforms, but mainline kernel already supported the multi
  firmwares on differnt platforms, and OEM project needs us to
  support the mutli-firmware names in the ubuntu kernel

  [Fix]
  cherry-pick 3 upstream patches, then on cnl platforms, it will
  load sof-cnl.ri, on cml platfomrs, it will load sof-cml.ri, on cfl
  platforms, it will load sof-cfl.ri

  
  [Test Case]
  Prepare the firmware from https://github.com/thesofproject/linux-firmware
  master branch, then boot the kernel with these patches.

  [Regression Risk]
  Low, just let different platforms load differnt firmware, and these
  patches are in the upstream kernel.

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