[PATCH v3 0/7] drm/vc4: Rework the HVS muxing code

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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
  - Added Hoegeun Kwon's tags
  - Fixed a build bisection error
  - Cleaned up the private state using drmm_add_action_or_reset
  - Rebased on current linux next

Maxime Ripard (7):
  drm/vc4: kms: Switch to drmm_add_action_or_reset
  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: 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 | 247 +++++++++++++++++++++++++---------
 2 files changed, 185 insertions(+), 64 deletions(-)

-- 
2.28.0

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