mbox series

[0/4] drm/display: hdmi: provide common code to get Audio Clock Recovery params

Message ID 20250309-drm-hdmi-acr-v1-0-bb9c242f4d4b@linaro.org (mailing list archive)
Headers show
Series drm/display: hdmi: provide common code to get Audio Clock Recovery params | expand

Message

Dmitry Baryshkov March 9, 2025, 8:13 a.m. UTC 
HDMI standards define a recommended set of values to be used for Audio
Clock Regeneration. Nevertheless, each HDMI driver dealing with audio
implements its own way to determine those values. Implement a common
helper and use it for MSM HDMI (tested), VC4 and DW-HDMI (compile-tested
only) drivers.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
Dmitry Baryshkov (4):
      drm/display: hdmi: provide central data authority for ACR params
      drm/msm/hdmi: use new helper for ACR tables
      drm/vc4: use new helper to get ACR values
      drm: bridge: dw-hdmi: use new helper to get ACR values

 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c |  90 ++--------------
 drivers/gpu/drm/display/drm_hdmi_helper.c | 164 ++++++++++++++++++++++++++++++
 drivers/gpu/drm/msm/hdmi/hdmi_audio.c     | 107 ++-----------------
 drivers/gpu/drm/vc4/vc4_hdmi.c            |  10 +-
 drivers/gpu/drm/vc4/vc4_hdmi.h            |   7 ++
 include/drm/display/drm_hdmi_helper.h     |   6 ++
 6 files changed, 197 insertions(+), 187 deletions(-)
---
base-commit: 0a2f889128969dab41861b6e40111aa03dc57014
change-id: 20250308-drm-hdmi-acr-7ad1f0d012df

Best regards,