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| author | Kuogee Hsieh <khsieh@codeaurora.org> | 2020-11-03 12:49:01 -0800 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2020-11-10 12:39:48 -0800 |
| commit | ea530388e64bd584645f2d89e40ca7dffade8eff (patch) | |
| tree | 02f229b34f4be0b7c5448b7ccd22d8ff489343f4 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 231a04fcc6cb5b0e5f72c015d36462a17355f925 (diff) | |
drm/msm/dp: skip checking LINK_STATUS_UPDATED bit
Some dongle will not clear LINK_STATUS_UPDATED bit after
DPCD read which cause link training failed. This patch
just read 6 bytes of DPCD link status from sink and return
without checking LINK_STATUS_UPDATED bit.
Only 8 bits are used to represent link rate at sinker DPCD.
The really link rate is 2.7Mb times the 8 bits value.
For example, 0x0A at DPCD is equal to 2.7Gb (10 * 2.7Mb).
This patch also convert 8 bits value of DPCD to really link
rate to fix worng link rate error during phy compliance test.
Fixes: 6625e2637d93 ("drm/msm/dp: DisplayPort PHY compliance tests fixup")
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions