[Bug 98353] [BAT][SKL] Failed to probe lspcon

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98353

--- Comment #5 from shashank.sharma at intel.com <shashank.sharma at intel.com> ---
Thanks for the logs, Chris. 
>From the logs:
[drm:lspcon_init [i915]] No LSPCON detected, found unknown

lspcon layer uses drm_dp_dual_mode implementation to detect if there is a
lspcon dongle attached with the port (i2c_over_aux) and once we find a dongle,
we try to read lspcon signature to determine if its MCA lspcon. 

Looks like drm_dp_dual_mode API could not detect a dp_dual_mode dongle, and it
returned unknown. So LSPCON detection failed. 

This could be due to:
- Faulty HW/dongle 
- Invalid FW on dongle
- Wrong VBT programming (there is no LSPCON on port B)

- Shashank

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