[RFC v2 0/5] Add HDMI infoframe helpers

[Thierry Reding]

During the development of this series I ran into a couple of build
failures caused by missing forward declarations. They are added in the
first patch of this series.

Patch 2 adds generic helpers to pack a structures that describe HDMI
AVI, audio, vendor-specific or SPD infoframes into the binary format
specified in the HDMI specification. The resulting binary buffer should
be easily programmable into the HDMI controller.

Patch 3 provides a helper to fill an HDMI AVI infoframe with data from
a struct drm_display_mode.

Patches 4 and 5 move the Tegra and Intel drivers over to the new
helpers. I think Rafał volunteered to take a look at porting the Radeon
driver. Besides those there is only Nouveau and Exynos that implement
their own, which I was going to move next.

One item that I have on my TODO list is the ACR computations requested
by Christian König. Before getting into that, however, I wanted to get
version out so that it can be tested on Intel hardware. On Tegra this
series generates identical infoframes as the custom implementation.

Thierry

Thierry Reding (5):
  drm: Add some missing forward declarations
  video: Add generic HDMI infoframe helpers
  drm: Add HDMI infoframe helpers
  drm: tegra: Use generic HDMI infoframe helpers
  drm/i915: Use generic HDMI infoframe helpers

 drivers/gpu/drm/Kconfig           |   9 ++
 drivers/gpu/drm/Makefile          |   1 +
 drivers/gpu/drm/drm_hdmi.c        |  71 +++++++++
 drivers/gpu/drm/i915/intel_drv.h  |  62 +-------
 drivers/gpu/drm/i915/intel_hdmi.c | 268 ++++++++++++++++---------------
 drivers/gpu/drm/i915/intel_sdvo.c |  22 ++-
 drivers/gpu/drm/tegra/Kconfig     |   1 +
 drivers/gpu/drm/tegra/hdmi.c      | 226 +++++++++++++-------------
 drivers/gpu/drm/tegra/hdmi.h      | 189 ----------------------
 drivers/video/Kconfig             |   3 +
 drivers/video/Makefile            |   1 +
 drivers/video/hdmi.c              | 322 ++++++++++++++++++++++++++++++++++++++
 include/drm/drm_crtc.h            |   3 +-
 include/drm/drm_hdmi.h            |  19 +++
 include/linux/hdmi.h              | 220 ++++++++++++++++++++++++++
 15 files changed, 915 insertions(+), 502 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_hdmi.c
 create mode 100644 drivers/video/hdmi.c
 create mode 100644 include/drm/drm_hdmi.h
 create mode 100644 include/linux/hdmi.h

-- 
1.8.0.1