Hamza Mahfooz authored Sep 07, 2023 and Shashank Sharma committed Sep 25, 2023

As of kernel commit 1ca67aba8d11 ("drm/amd/display: only accept async
flips for fast updates"), we reject async flips that used to be silently
degraded to vsync. However, this causes issues for VRR if TearFree isn't
enabled, in particular we have seen that VRR fails to engage on a
handful of tested applications and in one case we even observed an
application soft hang. So, if TearFree is set to auto we should enable
it if VariableRefresh is enabled and we should warn users if they try to
enable VariableRefresh while TearFree is disabled.

Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>