linux-toradex.git/include/drm/drm_crtc.h, branch v3.0.56

drm: Separate EDID Header Check from EDID Block Check

2011-08-16T01:31:34+00:00

commit 051963d4832ed61e5ae74f5330b0a94489e101b9 upstream.

    Provides function drm_edid_header_is_valid() for EDID header check
    and replaces EDID header check part of function drm_edid_block_valid()
    by a call of drm_edid_header_is_valid().
    This is a prerequisite to extend DDC probing, e. g. in function
    radeon_ddc_probe() for Radeon devices, by a central EDID header check.

    Tested for kernel 2.6.35, 2.6.38 and 3.0

Signed-off-by: Thomas Reim 
Reviewed-by: Alex Deucher 
Acked-by: Stephen Michaels 
Signed-off-by: Dave Airlie 
Signed-off-by: Greg Kroah-Hartman

drm/radeon: workaround a hw bug on some radeon chipsets with all-0 EDIDs.

2011-06-16T06:30:54+00:00

Some RS690 chipsets seem to end up with floating connectors, either
a DVI connector isn't actually populated, or an add-in HDMI card
is available but not installed. In this case we seem to get a NULL byte
response for each byte of the i2c transaction, so we detect this
case and if we see it we don't do anymore DDC transactions on this
connector.

I've tested this on my RS690 without the HDMI card installed and
it seems to work fine.

Signed-off-by: Dave Airlie 
Reviewed-by: Alex Deucher

drm: parse color format support for digital displays

2011-04-28T04:44:56+00:00

EDID 1.4 digital displays report the color spaces they support in the
features block.  Add support for grabbing this data and stuffing it into
the display_info struct for driver use.

Signed-off-by: Jesse Barnes 
Reviewed-by: Alex Deucher 
Signed-off-by: Dave Airlie

drm: add bit depth parsing

2011-04-28T04:42:58+00:00

EDID 1.4 digital monitors report the bit depth supported in the input
field.  Add support for parsing this out and storing the info in the
display_info structure for use by drivers.

[airlied: tweaked to fix inter-patch dependency]
Signed-off-by: Jesse Barnes 
Reviewed-by: Adam Jackson 
Signed-off-by: Dave Airlie

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07T18:14:49+00:00

* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6:
  Fix common misspellings

drm: export drm_find_cea_extension to drivers

2011-04-01T00:16:17+00:00

Nouveau needs access to this structure to build an ELD block for use
by the HDA audio codec.

Signed-off-by: Ben Skeggs 
Signed-off-by: Dave Airlie

Fix common misspellings

2011-03-31T14:26:23+00:00

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi

drm: Mark constant arrays of drm_display_mode const

2011-02-23T01:13:11+00:00

... and fixup some methods to accept the constant argument.

Now that constant module arrays are loaded into read-only memory, using
const appropriately has some benefits beyond warning the programmer
about likely mistakes.

Signed-off-by: Chris Wilson 
Signed-off-by: Dave Airlie

drm: dumb scanout create/mmap for intel/radeon (v3)

2011-02-07T02:16:14+00:00

This is just an idea that might or might not be a good idea,
it basically adds two ioctls to create a dumb and map a dumb buffer
suitable for scanout. The handle can be passed to the KMS ioctls to create
a framebuffer.

It looks to me like it would be useful in the following cases:
a) in development drivers - we can always provide a shadowfb fallback.
b) libkms users - we can clean up libkms a lot and avoid linking
to libdrm_*.
c) plymouth via libkms is a lot easier.

Userspace bits would be just calls + mmaps. We could probably
mark these handles somehow as not being suitable for acceleartion
so as top stop people who are dumber than dumb.

Signed-off-by: Dave Airlie

drm: Add an interface to reset the device

2011-01-25T19:23:28+00:00

Iterate over the attached CRTCs, encoders and connectors and call the
supplied reset vfunc in order to reset any cached state back to unknown.
Useful after an invalidation event such as a GPU reset or resuming.

Tested-by: Takashi Iwai 
Signed-off-by: Chris Wilson