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* [igt-dev] [PATCH v3 0/2] tests/kms_chamelium: Capture on type-c
@ 2020-04-22 23:01 Kunal Joshi
  2020-04-22 23:01 ` [igt-dev] [PATCH v3 1/2] " Kunal Joshi
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Kunal Joshi @ 2020-04-22 23:01 UTC (permalink / raw)
  To: arkadiusz.hiler, igt-dev, imre.deak; +Cc: Kunal Joshi

Chamelium uses HPD pulses to signal the need for a receiver reset
using DPMS cycle.Some connectors (e.g. DP over TypeC) have limitations
and will receive just a single such pulse and discard the rest.
This lasts until we disable the mode completetly and only then reenable it.

Receiver reset is always required after we set a new mode, so let's disable
the mode (reset_state() does that) before we switch to a new mode.
With this we will get the HPD pulses reliably for each iteration over
all the supoprted modes.

v2: Correction in code flow (Arek)

v3: Modified commit message. (Arek)

Kunal Joshi (2):
  tests/kms_chamelium: Capture on type-c
  HAX: Run in BAT

 tests/intel-ci/fast-feedback.testlist |  45 ++++++++++-
 tests/kms_chamelium.c                 | 110 +++++++++++++++++---------
 2 files changed, 118 insertions(+), 37 deletions(-)

-- 
2.25.1

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end of thread, other threads:[~2020-04-27  7:35 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-04-22 23:01 [igt-dev] [PATCH v3 0/2] tests/kms_chamelium: Capture on type-c Kunal Joshi
2020-04-22 23:01 ` [igt-dev] [PATCH v3 1/2] " Kunal Joshi
2020-04-22 23:01 ` [igt-dev] [PATCH v3 2/2] HAX: Run in BAT Kunal Joshi
2020-04-23  6:58 ` [igt-dev] ✗ Fi.CI.BAT: failure for tests/kms_chamelium: Capture on type-c (rev3) Patchwork
2020-04-27  0:37   ` Kunal Joshi
2020-04-23 10:27 ` [igt-dev] ✗ Fi.CI.BAT: failure for tests/kms_chamelium: Capture on type-c (rev4) Patchwork

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