This is a second revision of the series previously posted here:

As noted before, this functionality adds new ABI so we need a userspace
consumer ready before we merge the kernel work.  My understanding is
that some of the folks involved with ChromeOS are looking at this and
that there's a ChromeOS userspace review happening at

Since there are a few Intel-specific background color changes that we
want to make independently of the new ABI, I've separated those out into
a new patch #1; we may want to consider landing that patch before the
rest of the series since it fixes an inconsistency in how we currently
program our hardware.

On the i915-side of things, this series only deals with gen9+ at the
moment.  It looks like CHV may also have support for background color
functionality, but I couldn't find the register layout details for that
platform, so I haven't added support for it yet.

Cc: Wei C Li <>
Cc: Sean Paul <>
Cc: Ville Syrjälä <>

Matt Roper (3):
  drm/i915: Force background color to black for gen9+
  drm: Add CRTC background color property (v2)
  drm/i915/gen9+: Add support for pipe background color (v2)

 drivers/gpu/drm/drm_atomic_state_helper.c |  1 +
 drivers/gpu/drm/drm_atomic_uapi.c         |  5 ++++
 drivers/gpu/drm/drm_blend.c               | 21 ++++++++++++++---
 drivers/gpu/drm/drm_mode_config.c         |  6 +++++
 drivers/gpu/drm/i915/i915_debugfs.c       |  9 +++++++
 drivers/gpu/drm/i915/i915_reg.h           |  6 +++++
 drivers/gpu/drm/i915/intel_display.c      | 39 +++++++++++++++++++++++++++++++
 include/drm/drm_blend.h                   |  1 +
 include/drm/drm_crtc.h                    | 17 ++++++++++++++
 include/drm/drm_mode_config.h             |  5 ++++
 include/uapi/drm/drm_mode.h               | 26 +++++++++++++++++++++
 11 files changed, 133 insertions(+), 3 deletions(-)


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