drm/i915/dp: Improve clock recovery loop limit comment
authorNathan Ciobanu <nathan.d.ciobanu@linux.intel.com>
Tue, 24 Jul 2018 22:33:32 +0000 (15:33 -0700)
committerRodrigo Vivi <rodrigo.vivi@intel.com>
Wed, 25 Jul 2018 16:57:25 +0000 (09:57 -0700)
commit4de737a26e6a251c86ff1e96667aebc5eecf9456
tree2ddd468c4753c1e53d631ab31ecb71547cdbd1d8
parent3970c65c2b47c450f917bc8a29c5849563a95dfe
drm/i915/dp: Improve clock recovery loop limit comment

Clarifies the clock recovery loop limit comment that 80
max_cr_tries for pre-DP1.4 devices was chosen as a very
tolerant upper bound.
Assumptions made:
- DP1.4 syncs should be smarter so they won't need more
than 10 tries
- pre-DP1.4 syncs should be compliant enough to not need
that many tries (80) but we should tolerate any that may
trigger this corner case

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Marc Herbert <marc.herbert@intel.com>
Suggested-by: Marc Herbert <marc.herbert@intel.com>
Signed-off-by: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com>
Reviewed-by: Marc Herbert <marc.herbert@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1532471612-30001-1-git-send-email-nathan.d.ciobanu@linux.intel.com
drivers/gpu/drm/i915/intel_dp_link_training.c