[Intel-gfx] [PATCH 0/7] Add lspcon support

Shashank Sharma shashank.sharma at intel.com
Tue Mar 22 14:25:01 UTC 2016

LSPCON is essentially an active DP-HDMI convertor. It has
two modes of operations:
- ls mode (for upto HDMI 1.4 outputs, 4k at 30 resoution / 297MHz) 
- pcon mode (for upto HDMI 2.0 outputs, 4k at 60 resolution / 600 MHz)

This patch set adds support for LS mode of operation for GEN9
platforms. It adds a new connector for lspcon, whcih is a mix
and match of DP and HDMI connectors, matching dual personality
of lspcon devices.

- Daniel Vetter gave a review comment on LSPCON design, to make
  it a separate encoder. This patch set tries to match that expectations
  with a separate connector, as DDI encoder already fulfills all the
  requirements of a lspcon_encoder.
- This patch set tagrets LS mode of operations only.
- PCON mode of operation will be added later, based on the requirements.
  This is to primarily unbloc Linux devices with LSPCON port.
- This patch set is tested with BXT RVP + drm-nightly
- As we redesigned this code, to meet the review comments, this is a working
  patch set, but not upto commercial quality yet.

Shashank Sharma (7):
  drm/i915: add lspcon vbt bit parsing
  drm/i915: Add lspcon data structures
  drm/i915: Add new lspcon file
  drm/i915: Add and initialize lspcon connector
  drm/i915: Add and register lspcon connector functions
  drm/i915: Add lspcon core functions
  drm/i915: Add lspcon hpd handler

 drivers/gpu/drm/i915/Makefile         |   3 +-
 drivers/gpu/drm/i915/i915_drv.h       |   1 +
 drivers/gpu/drm/i915/intel_bios.c     |  42 +++
 drivers/gpu/drm/i915/intel_ddi.c      |   6 +
 drivers/gpu/drm/i915/intel_dp.c       |  31 ++
 drivers/gpu/drm/i915/intel_drv.h      |  35 +-
 drivers/gpu/drm/i915/intel_hdmi.c     |  25 +-
 drivers/gpu/drm/i915/intel_hotplug.c  |   2 +-
 drivers/gpu/drm/i915/intel_lspcon.c   | 620 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_vbt_defs.h |   1 +
 10 files changed, 759 insertions(+), 7 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/intel_lspcon.c


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