drm/uapi: Deprecate DRM_MODE_FLAG_PIXMUX
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Tue, 14 Nov 2017 18:32:51 +0000 (20:32 +0200)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Mon, 29 Jan 2018 19:31:00 +0000 (21:31 +0200)
commitd15f40c84cdd2c4ac717d3c1e0146c07b5996d18
tree7152ed4e6e42f1e382ce16d9e9251cdc704c8e9c
parentc6ed6dad5cfb76d72d8f9accba9b9f8d572c518c
drm/uapi: Deprecate DRM_MODE_FLAG_PIXMUX

Reject any mode with DRM_MODE_FLAG_PIXMUX. We have no code that even
checks for this flag hence it can't possibly do any good.

Looks like this flag had something to do the the controller<->ramdac
interface with some ancient S3 graphics adapters. Why someone though
it would be a good idea to expose it directly to users I don't know.
And later on it got copied into the randr protocol and kms uapi.

Cc: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114183258.16976-4-ville.syrjala@linux.intel.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
include/drm/drm_modes.h
include/uapi/drm/drm_mode.h