[v2,0/5] DRM: Bridge: DW_HDMI: Add new features and bug fix

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Sandor Yu April 8, 2022, 10:32 a.m. UTC

This is new features and bug fix patch set for DW_HDMI DRM bridge driver
that has verified by NXP i.MX8MPlus.
Three new feature added:
1. Add GPA interface for DW_HDMI Audio.
2. Add CEC PM functions to restore CEC status when device suspend/resume
3. New API for reset PHY Gen1.
Two bugs fixed:
1. Enable overflow workaround for all IP versions later than v1.30a.
2. Clear GCP_Auto bit for 24-bit color depth to pass CTS.

v1->v2:
1. Save CEC interrupt registers in struct dw_hdmi_cec
2. Restore CEC logical address register by cec->addresses.
3. Default enable overflow workaround for all versions later than v1.30a.
4. Add clear_gcp_auto flag to clear gcp_auto bit for all 24-bit color.
5. Remove i.MX8MPlus specific reference.

Sandor Yu (5):
  drm: bridge: dw_hdmi: cec: Add cec suspend/resume function
  drm: bridge: dw_hdmi: default enable workaround to clear the overflow
  drm: bridge: dw_hdmi: Enable GCP only for Deep Color
  drm: bridge: dw_hdmi: add reset function for PHY GEN1
  drm: bridge: dw_hdmi: Audio: Add General Parallel Audio (GPA) driver

 drivers/gpu/drm/bridge/synopsys/Kconfig       |  10 +
 drivers/gpu/drm/bridge/synopsys/Makefile      |   1 +
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c |  37 ++++
 .../drm/bridge/synopsys/dw-hdmi-gp-audio.c    | 199 ++++++++++++++++++
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 177 ++++++++++++++--
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.h     |  13 +-
 drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c        |   2 +-
 include/drm/bridge/dw_hdmi.h                  |   9 +-
 8 files changed, 424 insertions(+), 24 deletions(-)
 create mode 100644 drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c