linux-toradex.git/drivers/gpu/drm/exynos, branch v3.5.2

drm/exynos: fixed blending for hdmi graphic layer

2012-06-05T04:25:18+00:00

Blending for graphic layer 0 of hdmi mixer was not set so video
layer cannot be showed if graphic layer 0 is enabled.
This patch fixes blending values to support blending between
graphic layer 0 and video layer.

Signed-off-by: Seung-Woo Kim 
Signed-off-by: Kyungmin Park 
Signed-off-by: Inki Dae

drm/exynos: Remove dummy encoder get_crtc operation implementation

2012-06-05T04:25:15+00:00

The encoder get_crtc operation is called to retrieve a pointer to the
CRTC the encoder is currenctly connected to, right after setting the
encoder::crtc field to the new CRTC. The implementation of this
operation returns the pointer to the new CRTC, which is then pointlessly
compared to itself.

As the operation is not mandatory, don't implement it.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park

drm/exynos: Keep a reference to frame buffer GEM objects

2012-06-05T02:53:58+00:00

GEM objects used by frame buffers must be referenced for the whole life
of the frame buffer. Release the references in the frame buffer
destructor instead of its constructor.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park

drm/exynos: Don't cast GEM object to Exynos GEM object when not needed

2012-06-05T02:53:58+00:00

The exynos_drm_gem_dumb_map_offset() doesn't need to access any
Exynos-specific GEM object fields, don't cast the GEM object.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park

drm/exynos: DRIVER_BUS_PLATFORM is not a driver feature

2012-06-05T02:53:58+00:00

DRIVER_BUS_PLATFORM is a bus type used internally in the DRM core, not a
flag for the drm_driver::driver_features field.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park

drm/exynos: Use DRM_FORMAT_{NV12, YUV420} instead of DRM_FORMAT_{NV12M, YUV420M}

2012-06-05T02:51:43+00:00

The NV12M/YUV420M formats are identical to the already existing standard
NV12/YUV420 formats. The M variants will be removed, so convert the
driver to use the standard names.

Signed-off-by: Ville Syrjälä 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park

Merge branch 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung into drm-core-next

2012-05-22T09:39:57+00:00

* 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung:
  drm/exynos: add G2D driver
  drm/exynos: added vp scaling feature for hdmi
  drm/exynos: added source size to overlay structure
  drm/exynos: add additional display mode for hdmi
  drm/exynos: enable dvi mode for dvi monitor
  drm/exynos: fixed wrong pageflip finish event for interlace mode
  drm/exynos: add PM functions for hdmi and mixer
  drm/exynos: add dpms for hdmi
  drm/exynos: use threaded irq for hdmi hotplug
  drm/exynos: use platform_get_irq_byname for hdmi
  drm/exynos: cleanup for hdmi platform data
  drm/exynos: added a feature to get gem buffer information.
  drm/exynos: added drm prime feature.
  drm/exynos: added cache attribute support for gem.
  vgaarb: Provide dummy default device functions

drm: Constify drm_mode_config_funcs pointer

2012-05-22T09:35:07+00:00

The DRM mode config functions structure declared by drivers and pointed
to by the drm_mode_config funcs field is never modified. Make it a const
pointer.

Signed-off-by: Laurent Pinchart 
Cc: Inki Dae 
Cc: Alan Cox 
Cc: Daniel Vetter 
Cc: Ben Skeggs 
Cc: Thomas Hellstrom 
Cc: Rob Clark 
Reviwed-by: Alex Deucher 
Signed-off-by: Dave Airlie

drm: Constify gem_vm_ops pointer

2012-05-22T09:34:53+00:00

The GEM vm operations structure is passed to the VM core that stores it
in a const field. There vm operations structures can thus be const in
DRM as well.

Signed-off-by: Laurent Pinchart 
Cc: Inki Dae 
Cc: Alan Cox 
Cc: Daniel Vetter 
Cc: Rob Clark 
Reviewed-by: Alex Deucher 
Signed-off-by: Dave Airlie

drm/exynos: add G2D driver

2012-05-17T11:14:48+00:00

Changelog v3:
- use __u64 instead of pointer in ioctl struct.

The G2D is a 2D graphic accelerator that supports Bit Block Transfer.
This G2D driver is exynos drm specific and supports only G2D(version
4.1) of later Exynos series from Exynos4X12 because supporting DMA.

The G2D is performed by two tasks simply.
1. Configures the rendering parameters, such as foreground color and
   coordinates data by setting the drawing context registers.
2. Start the rendering process by setting thre relevant command
   registers accordingly.

The G2D version 4.1 supports DMA mode as host interface. User can make
command list to reduce HOST(ARM) loads. The contents of The command list
is setted to relevant registers of G2D by DMA.

The command list is composed Header and command sets and Tail.
- Header: The number of command set(4Bytes)
- Command set: Register offset(4Bytes) + Register data(4Bytes)
- Tail: Pointer of base address of the other command list(4Bytes)

By Tail field, the G2D can process many command lists without halt at
one go.

The G2D has following the rendering pipeline.
--> Primitive Drawing --> Rotation --> Clipping --> Bilinear Sampling
--> Color Key --> ROP --> Mask Operation --> Alpha Blending -->
Dithering --> FrameBuffer

And supports various operations from the rendering pipeline.
- copy
- fast solid color fill
- window clipping
- rotation
- flip
- 4 operand raster operation(ROP4)
- masking operation
- alpha blending
- color key
- dithering
- etc

User should make the command list to data and registers needed by
operation to use. The Exynos G2D driver only manages the command lists
received from user. Some registers needs memory base address(physical
address) of image. User doesn't know its physical address, so fills the
gem handle of that memory than address to command sets, then G2D driver
converts it to memory base address.

We adds three ioctls and one event for Exynos G2D.

- ioctls
DRM_EXYNOS_G2D_GET_VER: get the G2D hardware version
DRM_EXYNOS_G2D_SET_CMDLIST: set the command list from user to driver
DRM_EXYNOS_G2D_EXEC: execute the command lists setted to driver

- event
DRM_EXYNOS_G2D_EVENT: event to give notification completion of the
		      command list to user

Signed-off-by: Joonyoung Shim 
Signed-off-by: Inki Dae 
Signed-off-by: Kyungmin Park