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No GuC or HuC firmware for Comet-Lake processor

Enabling the loading of GuC or HuC firmware using the enable_guc parameter on a system using the Intel(R) Core(TM) i7-10510U processor leads to an error due to missing entry in the firmware blob table.

The code present in the __uc_fw_auto_select driver function identifies the CPU as

  • platform: 27 (=INTEL_COMETLAKE)
  • rev: 2 which does not match any fw blob entry.

The problem was initially seen on Linux kernel 5.9.14 (x86_64) using the Manjaro Linux distribution. Using the drm-tip branch did not affect the behavior. The behavior does not depend on the used connectors. The used device is a LENOVO(R) ThinkPad L13 Yoga, Product Name: 20R5000KGE

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