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[v2,0/7] drm/vc4: Rework the HVS muxing code

Message ID cover.3eb3532def69f3610b18104e45b7274bbdc1b0a0.1603888799.git-series.maxime@cerno.tech
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Series drm/vc4: Rework the HVS muxing code | expand

Message

Maxime Ripard Oct. 28, 2020, 12:40 p.m. UTC 
Hi,

Here's a second attempt at fixing the current issues we have with the
muxing code that results in a PV muxing its HVS muxing when only another
CRTC is modified by a state, or vblank timeouts when trying to wait for a
vblank on a single CRTC while another one is inactive but enabled.

Let me know what you think,
Maxime

Changes from v1:
  - Dropped the code trying to access all the CRTCs (whether in the state
    or not) state

Maxime Ripard (7):
  drm/vc4: kms: Remove useless define
  drm/vc4: kms: Rename NUM_CHANNELS
  drm/vc4: kms: Split the HVS muxing check in a separate function
  drm/vc4: kms: Document the muxing corner cases
  drm/vc4: kms: Add functions to create the state objects
  drm/vc4: kms: Store the unassigned channel list in the state
  drm/vc4: kms: Don't disable the muxing of an active CRTC

 drivers/gpu/drm/vc4/vc4_drv.h |   2 +-
 drivers/gpu/drm/vc4/vc4_kms.c | 314 +++++++++++++++++++++++++----------
 2 files changed, 235 insertions(+), 81 deletions(-)

base-commit: 66e2a590a11f54865fb3ffd3ec932a6a4e477b40