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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-10-23 18:23:33 +0000
committerDave Airlie <airlied@redhat.com>2012-11-20 15:50:42 +1000
commit816da85a0990c2b52cfffa77637d1c770d6790e9 (patch)
tree3e3bd2c22624db838a8456c167058b4e56b177fc /include/drm
parent3d3683f04a32da16df71e3b089da8f5a13059ef4 (diff)
downloadlinux-816da85a0990c2b52cfffa77637d1c770d6790e9.tar.bz2
drm: handle HPD and polled connectors separately
Instead of reusing the polling code for hpd handling, split them up. This has a few consequences: - Don't touch HPD capable connectors in the poll loop. - Only touch HPD capable connectors in drm_helper_hpd_irq_event. - We could run the HPD handling directly (because all callers already use their own work item), but for easier bisect that happens in it's own patch. The ultimate goal is that drivers grow some smarts about which connectors have received a hotplug event and only call the detect code of that connector. But that's a second step. v2: s/hdp/hpd/, noticed by Adam Jackson. I can't type. v3: Split out the work item removal as requested by Dave Airlie. This results in a temporary mode_config.hpd_irq_work item to keep things the same. v4: In the hpd_irq_event handler don't bail out if other bits than HPD are set. This is useful where e.g. hpd is unreliably, but mostly works. Drivers can then set both HPD and POLL flags, and users get the best of both worlds: Quick hotplug feedback if the hpd works, but still reliable detection with the polling. The poll loop already works the same, and doesn't bail if HPD is set. 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>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_crtc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 1f5f1d642a98..ccff8c9b3780 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -793,6 +793,7 @@ struct drm_mode_config {
/* output poll support */
bool poll_enabled;
struct delayed_work output_poll_work;
+ struct delayed_work hpd_irq_work;
/* pointers to standard properties */
struct list_head property_blob_list;