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| author | Imre Deak <[email protected]> | 2021-03-17 21:01:49 +0200 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2021-03-23 08:26:55 -0400 |
| commit | 7dffbdedb96a076843719d4ea5b2cd666481c416 (patch) | |
| tree | 1775ac64c6b94b5ed08e370f3319dfbed7a8781d /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 3f3a9bc1f6df5a1a9ec39e3a5bee420328811be4 (diff) | |
drm/i915: Disable LTTPR support when the DPCD rev < 1.4
By the specification the 0xF0000-0xF02FF range is only valid when the
DPCD revision is 1.4 or higher. Disable LTTPR support if this isn't so.
Trying to detect LTTPRs returned corrupted values for the above DPCD
range at least on a Skylake host with an LG 43UD79-B monitor with a DPCD
revision 1.2 connected.
v2: Add the actual version check.
v3: Fix s/DRPX/DPRX/ typo.
Fixes: 7b2a4ab8b0ef ("drm/i915: Switch to LTTPR transparent mode link training")
Cc: <[email protected]> # v5.11
Cc: Ville Syrjälä <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 264613b406eb0d74cd9ca582c717c5e2c5a975ea)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions