[v4,0/5] add audio support for Display Port on MSM

Message

Abhinav Kumar Aug. 31, 2020, 6:22 p.m. UTC

This series adds audio support for DP on MSM chipsets. It leverages
the hdmi-codec interface [1] to communicate between the Display Port
driver and the audio subsystem. These changes depend on the series [2]
which adds Display Port support to MSM chipsets.

[1] https://patchwork.kernel.org/patch/11047883/
[2] https://patchwork.kernel.org/patch/11708677/

changes in v2:
    - fix up a compilation issue on drm-next branch

changes in v3:
    - add support to synchronize DP driver and audio during shutdown

changes in v4:
    - rebase on top of latest patchset of dependency

Abhinav Kumar (5):
  drm/msm/dp: store dp_display in the driver data
  drm/msm/dp: add audio support for Display Port on MSM
  drm/msm/dp: add hook_plugged_cb hdmi-codec op for MSM DP driver
  drm/msm/dp: signal the hotplug disconnect in the event handler
  drm/msm/dp: wait for audio notification before disabling clocks

 drivers/gpu/drm/msm/Makefile                |   3 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c |   7 +
 drivers/gpu/drm/msm/dp/dp_audio.c           | 638 ++++++++++++++++++++
 drivers/gpu/drm/msm/dp/dp_audio.h           |  72 +++
 drivers/gpu/drm/msm/dp/dp_catalog.c         | 192 ++++++
 drivers/gpu/drm/msm/dp/dp_catalog.h         |  29 +
 drivers/gpu/drm/msm/dp/dp_display.c         | 127 +++-
 drivers/gpu/drm/msm/dp/dp_display.h         |  11 +
 8 files changed, 1067 insertions(+), 12 deletions(-)
 create mode 100644 drivers/gpu/drm/msm/dp/dp_audio.c
 create mode 100644 drivers/gpu/drm/msm/dp/dp_audio.h