[PATCH 00/30] drm: Use new DRM printk funcs (like drm_dbg_*()) in DP helpers

Lyude Paul lyude at redhat.com
Fri Feb 19 21:52:56 UTC 2021

Since it's been asked quite a few times on some of the various DP
related patch series I've submitted to use the new DRM printk helpers,
and it technically wasn't really trivial to do this before due to the
lack of a consistent way to find a drm_device for an AUX channel, this
patch series aims to address this. In this series we:

* Clean-up potentially erroneous usages of drm_dp_aux_init() and
  drm_dp_aux_register() so that actual AUX registration doesn't happen
  until we have an associated DRM device
* Clean-up any obvious errors in drivers we find along the way
* Add a backpointer to the respective drm_device for an AUX channel in
  drm_dp_aux.drm_dev, and hook it up in every driver with an AUX channel
  across the tree
* Add a new ratelimited print helper we'll need for converting the DP
  helpers over to using the new DRM printk helpers
* Fix any inconsistencies with logging in drm_dp_helper.c so we always
  have the aux channel name printed
* Prepare the various DP helpers so they can find the correct drm_device
  to use for logging
* And finally, convert all of the DP helpers over to using drm_dbg_*()
  and drm_err().

Lyude Paul (30):
  drm/dp: Rewrap kdocs for struct drm_dp_aux
  drm/dp: Fixup kernel docs for struct drm_dp_aux
  drm/tegra: Don't register DP AUX channels before connectors
  drm/bridge/tc358767: Don't register DP AUX channel until bridge is
  drm/bridge/cdns-mhdp8546: Register DP aux channel with userspace
  drm/bridge/ti-sn65dsi86: (Un)register aux device on bridge
  drm/bridge/analogix/anx78xx: Add missing drm_dp_aux_unregister() call
  drm/bridge/analogix/anx78xx: Setup encoder before registering
  drm/bridge/analogix/anx78xx: Cleanup on error in
  drm/bridge/analogix/anx6345: Add missing drm_dp_aux_unregister() call
  drm/bridge/analogix/anx6345: Don't link encoder until after connector
  drm/bridge/analogix/anx6345: Cleanup on errors in
  drm/bridge/analogix/dp_core: Unregister DP AUX channel on error in
  drm/nouveau/kms/nv50-: Move AUX adapter reg to connector late
    register/early unregister
  drm/dp: Add backpointer to drm_device in drm_dp_aux
  drm/dp: Rewrap drm_dp_aux_register()/drm_dp_aux_init() kdocs
  drm/dp: Clarify DP AUX registration time
  drm/print: Fixup DRM_DEBUG_KMS_RATELIMITED()
  drm/dp: Pass drm_dp_aux to drm_dp_link_train_clock_recovery_delay()
  drm/dp: Pass drm_dp_aux to drm_dp*_link_train_channel_eq_delay()
  drm/dp: Always print aux channel name in logs
  drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_detect()
  drm/dp_dual_mode: Pass drm_device to
  drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_max_tmds_clock()
  drm/dp_dual_mode: Pass drm_device to
  drm/dp_dual_mode: Pass drm_device to drm_lspcon_(get|set)_mode()
  drm/dp_mst: Pass drm_dp_mst_topology_mgr to drm_dp_get_vc_payload_bw()
  drm/dp: Convert drm_dp_helper.c to using drm_err/drm_dbg_*()
  drm/dp_dual_mode: Convert drm_dp_dual_mode_helper.c to using
  drm/dp_mst: Convert drm_dp_mst_topology.c to drm_err()/drm_dbg*()

 drivers/gpu/drm/amd/amdgpu/atombios_dp.c      |   5 +-
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   |   1 +
 .../drm/bridge/analogix/analogix-anx6345.c    |  28 +-
 .../drm/bridge/analogix/analogix-anx78xx.c    |  28 +-
 .../drm/bridge/analogix/analogix_dp_core.c    |   2 +
 .../drm/bridge/cadence/cdns-mhdp8546-core.c   |  12 +-
 drivers/gpu/drm/bridge/tc358767.c             |  21 +-
 drivers/gpu/drm/bridge/ti-sn65dsi86.c         |  19 +-
 drivers/gpu/drm/drm_dp_aux_dev.c              |   6 +
 drivers/gpu/drm/drm_dp_dual_mode_helper.c     |  68 ++--
 drivers/gpu/drm/drm_dp_helper.c               | 175 ++++----
 drivers/gpu/drm/drm_dp_mst_topology.c         | 377 +++++++++---------
 drivers/gpu/drm/i915/display/intel_dp_aux.c   |   1 +
 .../drm/i915/display/intel_dp_link_training.c |   6 +-
 drivers/gpu/drm/i915/display/intel_dp_mst.c   |   3 +-
 drivers/gpu/drm/i915/display/intel_hdmi.c     |   7 +-
 drivers/gpu/drm/i915/display/intel_lspcon.c   |  17 +-
 drivers/gpu/drm/msm/dp/dp_ctrl.c              |   6 +-
 drivers/gpu/drm/msm/edp/edp.h                 |   3 +-
 drivers/gpu/drm/msm/edp/edp_aux.c             |   5 +-
 drivers/gpu/drm/msm/edp/edp_ctrl.c            |   8 +-
 drivers/gpu/drm/nouveau/nouveau_connector.c   |  27 +-
 drivers/gpu/drm/radeon/atombios_dp.c          |   5 +-
 drivers/gpu/drm/tegra/dpaux.c                 |  12 +-
 drivers/gpu/drm/xlnx/zynqmp_dp.c              |   5 +-
 include/drm/drm_dp_dual_mode_helper.h         |  14 +-
 include/drm/drm_dp_helper.h                   |  59 +--
 include/drm/drm_dp_mst_helper.h               |   3 +-
 include/drm/drm_print.h                       |  20 +-
 29 files changed, 537 insertions(+), 406 deletions(-)


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