diff options
| author | Ville Syrjälä <[email protected]> | 2022-08-29 16:58:34 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <[email protected]> | 2022-09-06 14:51:38 -0400 |
| commit | edca5a2c373db61efa959307c13ed9156b1c14d9 (patch) | |
| tree | 9de4c13be766355bd0fcd0d5ebdfdbc6861c4122 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | 7e18e42e4b280c85b76967a9106a13ca61c16179 (diff) | |
drm/i915/bios: Copy the whole MIPI sequence block
Turns out the MIPI sequence block version number and
new block size fields are considered part of the block
header and are not included in the reported new block size
field itself. Bump up the block size appropriately so that
we'll copy over the last five bytes of the block as well.
For this particular machine those last five bytes included
parts of the GPIO op for the backlight on sequence, causing
the backlight no longer to turn back on:
Sequence 6 - MIPI_SEQ_BACKLIGHT_ON
Delay: 20000 us
- GPIO index 0, number 0, set 0 (0x00)
+ GPIO index 1, number 70, set 1 (0x01)
Cc: [email protected]
Fixes: e163cfb4c96d ("drm/i915/bios: Make copies of VBT data blocks")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6652
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Jani Nikula <[email protected]>
(cherry picked from commit a06289f3f72431f3777af95ea1226b5b0abdc426)
Signed-off-by: Rodrigo Vivi <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions