linux-stable.git/drivers/gpu/drm/udl, branch v4.4

drm/udl: Use new drm_fb_helper functions

2015-08-06T12:13:00+00:00

Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- remove unused variable device in udlfb_create

Cc: David Airlie 
Cc: Haixia Shi 
Cc: "Stéphane Marchesin" 

Signed-off-by: Archit Taneja 
Signed-off-by: Daniel Vetter

dma-buf: cleanup dma_buf_export() to make it easily extensible

2015-04-21T09:17:16+00:00

At present, dma_buf_export() takes a series of parameters, which
makes it difficult to add any new parameters for exporters, if required.

Make it simpler by moving all these parameters into a struct, and pass
the struct * as parameter to dma_buf_export().

While at it, unite dma_buf_export_named() with dma_buf_export(), and
change all callers accordingly.

Reviewed-by: Maarten Lankhorst 
Reviewed-by: Daniel Thompson 
Acked-by: Mauro Carvalho Chehab 
Acked-by: Dave Airlie 
Signed-off-by: Sumit Semwal

drm/udl: properly set active_16 flag in udl_crtc_page_flip(). (v2)

2015-01-31T00:12:23+00:00

When page flipping, we need to mark the new fb as active and unmark the active
flag for the old fb (if different).

Signed-off-by: Haixia Shi 
Reviewed-by: Stéphane Marchesin 
Signed-off-by: Dave Airlie

drm/udl: optimize udl_compress_hline16 (v2)

2015-01-31T00:08:47+00:00

The run-length encoding algorithm should compare 16-bit encoded pixel
values instead of comparing raw pixel values. It allows pixels
with similar but different colors to be encoded as repeat pixels, and
thus potentially save USB bandwidth.

Signed-off-by: Haixia Shi 
Reviewed-by: Daniel Kurtz 
Tested-by: Haixia Shi 
Signed-off-by: Dave Airlie

drm/fb-helper: Propagate errors from initial config failure

2015-01-21T13:57:03+00:00

Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
  Reported-by: Fengguang Wu 

Cc: David Airlie 
Cc: Daniel Vetter 
Cc: Patrik Jakobsson 
Cc: Rob Clark 
Cc: Tomi Valkeinen 
Cc: Alex Deucher 
Cc: Christian König 
Cc: Ben Skeggs 
Signed-off-by: Thierry Reding 
Reviewed-by: Alex Deucher 
Reviewed-by: Patrik Jakobsson 
Reviewed-by: Christian König 
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: Daniel Vetter

drm/udl: properly check for error pointers

2014-11-26T00:03:18+00:00

The drm_prime_pages_to_sg() function never returns NULL pointers, only
error pointers and valid pointers.

Signed-off-by: Haixia Shi 
Reviewed-by: Stéphane Marchesin 
Signed-off-by: Dave Airlie

drm/udl: handle page mapping in dmabuf export.

2014-11-26T00:03:00+00:00

Fixes dmabuf export failure with -E_NOMEM when the page is not mapped.

Signed-off-by: Haixia Shi 
Reviewed-by: Stéphane Marchesin 
Signed-off-by: Dave Airlie

drm/udl: Deletion of an unnecessary check before the function call "vunmap"

2014-11-21T02:16:35+00:00

The vunmap() function performes also input parameter validation. Thus the test
around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Reviewed-by: Thierry Reding 
Signed-off-by: Dave Airlie

drm/udl: add support to export a handle to a FD on UDL.

2014-11-20T01:41:37+00:00

Only importing an FD to a handle is currently supported on UDL,
but the exporting functionality is equally useful.

Signed-off-by: Haixia Shi 
Reviewed-by: Stéphane Marchesin 
Signed-off-by: Dave Airlie

drm/udl: add cache flags definitions for udl_gem_object

2014-11-20T01:41:32+00:00

By default set udl_gem_object as cacheable, but set WC flag when attaching
dmabuf. In udl_gem_mmap() update cache attributes based on the flags, similar
to exynos_drm_gem_mmap().

Signed-off-by: Haixia Shi 
Reviewed-by: Sonny Rao 
Reviewed-by: Olof Johansson 
Reviewed-by: Stéphane Marchesin 
Signed-off-by: Dave Airlie