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| author | Cristian Ciocaltea <cristian.ciocaltea@collabora.com> | 2026-09-01 21:50:35 +0300 |
|---|---|---|
| committer | Cristian Ciocaltea <cristian.ciocaltea@collabora.com> | 2026-09-19 23:03:44 +0300 |
| commit | bc4dcf6f93778b182ad90233d3049acd9227136c (patch) | |
| tree | b835e2b8783aeee6f9a8ed717e940cbf3f506f58 /tools/perf/scripts/python/stackcollapse.py | |
| parent | d653818324edc79d8dd55f77496220d3849910d0 (diff) | |
| download | linux-bc4dcf6f93778b182ad90233d3049acd9227136c.tar.gz linux-bc4dcf6f93778b182ad90233d3049acd9227136c.zip | |
drm/display: hdmi: Advertise SCDC source version when scrambling
The HDMI 2.0 spec advises that compliant Source devices report their
SCDC version in the Source Version register. Do so when enabling
scrambling by calling drm_scdc_set_source_version().
Failures are non-fatal: SCDC version negotiation is purely informational
and does not gate scrambling or any high-bitrate functionality, so a
flaky DDC bus should not block scrambling setup.
Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Maud Spierings <maud_spierings@hotmail.com>
Tested-by: Diederik de Haas <diederik@cknow-tech.com> # NanoPC-T6 LTS, Rock 5B
Tested-by: Igor Paunovic <royalnet026@gmail.com> # RK3588 Orange Pi 5 Plus, dual HDMI
Tested-by: Robin Räber <robin.raebi@gmail.com>
Link: https://patch.msgid.link/20260901-dw-hdmi-qp-scramb-v11-11-bc12954a0688@collabora.com
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
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