APPLIED: [PATCH][focal] Remove amdgpu assert warnings if retimer is not available

[Kelsey Skunberg]

On 2020-04-13 12:46:02 , Alex Hung wrote:
> BugLink: https://bugs.launchpad.net/bugs/1871248
> 
> [Impact]
> 
> amdgpu generates assert warning messages when retimer is not supported.
> This behaviour can cause confusions to users.
> 
> [Fix]
> 
> This is fixed by commit a0e40018dcc3f59a. It silences ASSERTs by
> outputing a debug message and exiting when retimer is not supported by
> hardware.
> 
> [Test]
> 
> Verified on B450 I AORUS PRO WIFI with AMD Ryzen 3 3200G as discussed
> on LP:1871248.
> 
> [Regression Potential]
> 
> Low. It is for unsupported hardware features, and the patch was cherry-picked
> from upstream kernel 5.7 rc1.
> 
> Rodrigo Siqueira (1):
>   drm/amd/display: Stop if retimer is not available
> 
>  drivers/gpu/drm/amd/display/dc/core/dc_link.c | 67 ++++++++++++---------------
>  1 file changed, 29 insertions(+), 38 deletions(-)
>

Applied to Focal/master-next. Thank you!

-Kelsey
 
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