[Intel-gfx] [PATCH 0/4] Color manager framework

[shashank.sharma at intel.com]

From: Shashank Sharma <shashank.sharma at intel.com>

Color manager is an extention to i915 driver which provides display
tuning and color-correction properties to user space, via DRM propery
interface.Different Intel platforms support different color tuning capabilities
which can be exploited using this framework.

This patch set adds color correction for VLV, and the code is written
in such a way that new color properties and support for other platforms can
be pluggen in, using the same architecture.

For the design discussion, right now only one color correction property (CSC)
has been added. Once we agree on the design, gamma-correction, contrast, brightness,
and hue/saturation would be followed by the same.

What this patch set does, is:
1. Color manager framework for valleyview:
Add basic functions of framework, to create and destroy DRM properties for
color correction. It also adds header, enums and defines.

2. Plug-in color manager attach
Attach created color properties, with the objects. Basically properties get attached to
two type of objects, crtc (pipe level correction) and plane (plane level correction).

3. CSC color correction
First color correction method.
- Add color property for CSC during init. 
- Add blob to keep correction values
- Attach DRM CSC propery with each CRTC object
- Core CSC correction for VLV

4. Add set_property function for intel CRTC.
This function checks the type of the property, and calls the
appropriate high level function (intel_clrmgr_set_csc), which does
platform check and calls the core platform color correction
function (vlv_set_csc)

V2: Re-designed based on review comments and suggestions from Matt Roper and Daniel.
- Creating only one property per color correction, and attaching it to every DRM object.
- No additional data structures on top of DRM property.
- No registeration of color property, just create and attach.
- Added properties in dev->mode_config

Shashank Sharma (4):
  drm/i915: Color manager framework for valleyview
  drm/i915: Plug-in color manager attach
  drm/i915: CSC color correction
  drm/i915: Add set_protpery function

 drivers/gpu/drm/drm_crtc.c           |   4 +-
 drivers/gpu/drm/i915/Makefile        |   3 +-
 drivers/gpu/drm/i915/i915_reg.h      |  11 ++
 drivers/gpu/drm/i915/intel_clrmgr.c  | 283 +++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_clrmgr.h  | 108 +++++++++++++
 drivers/gpu/drm/i915/intel_display.c |  25 ++++
 drivers/gpu/drm/i915/intel_drv.h     |   1 +
 drivers/gpu/drm/i915/intel_sprite.c  |   3 +
 include/drm/drm_crtc.h               |   7 +
 9 files changed, 442 insertions(+), 3 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/intel_clrmgr.c
 create mode 100644 drivers/gpu/drm/i915/intel_clrmgr.h

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1.9.1