drm: properly init/reset connector status
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 23 Oct 2012 18:23:35 +0000 (18:23 +0000)
committerDave Airlie <airlied@redhat.com>
Tue, 20 Nov 2012 05:51:06 +0000 (15:51 +1000)
commit5e2cb2f6da72323877e5847512f8bd8d53c532f2
tree5f1dd2dc8d1f2480247f2e3a1c5a3ad09a836d71
parent69787f7da6b2adc4054357a661aaa1701a9ca76f
drm: properly init/reset connector status

This can help drivers to make somewhat intelligent decisions in their
->detect callback: If the connector is hpd capable and in the unknown
state, the driver needs to force a full detect cycle. Otherwise it
could just (if it chooses so) to update the connector state from it's
hpd handler directly, and always return that in the ->detect callback.

Atm only drm/i915 calls drm_mode_config_reset at resume time, so other
drivers would need to add that call first before using this facility.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/drm_crtc.c