kernel/drm-connection-cache.patch

66 lines
2.7 KiB
Diff

diff -up linux-2.6.30.noarch/drivers/gpu/drm/drm_crtc_helper.c.jx linux-2.6.30.noarch/drivers/gpu/drm/drm_crtc_helper.c
--- linux-2.6.30.noarch/drivers/gpu/drm/drm_crtc_helper.c.jx 2009-09-09 08:57:39.000000000 -0400
+++ linux-2.6.30.noarch/drivers/gpu/drm/drm_crtc_helper.c 2009-09-09 09:35:24.000000000 -0400
@@ -92,6 +92,18 @@ int drm_helper_probe_single_connector_mo
connector->status = connector->funcs->detect(connector);
+ /* fast path if the driver tracks disconnection */
+ if (connector->status == connector_status_cached) {
+ DRM_DEBUG_KMS("%s still connected\n",
+ drm_get_connector_name(connector));
+ list_for_each_entry_safe(mode, t, &connector->modes, head) {
+ count++;
+ mode->status = MODE_OK;
+ }
+ connector->status = connector_status_connected;
+ return count;
+ }
+
if (connector->status == connector_status_disconnected) {
DRM_DEBUG_KMS("%s is disconnected\n",
drm_get_connector_name(connector));
diff -up linux-2.6.30.noarch/drivers/gpu/drm/i915/intel_lvds.c.jx linux-2.6.30.noarch/drivers/gpu/drm/i915/intel_lvds.c
--- linux-2.6.30.noarch/drivers/gpu/drm/i915/intel_lvds.c.jx 2009-09-09 08:57:39.000000000 -0400
+++ linux-2.6.30.noarch/drivers/gpu/drm/i915/intel_lvds.c 2009-09-09 09:56:18.000000000 -0400
@@ -593,7 +593,14 @@ static void intel_lvds_mode_set(struct d
*/
static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector)
{
- return connector_status_connected;
+ static int done;
+
+ if (!done) {
+ done = 1;
+ return connector_status_connected;
+ } else {
+ return connector_status_cached;
+ }
}
/**
diff -up linux-2.6.30.noarch/include/drm/drm_crtc.h.jx linux-2.6.30.noarch/include/drm/drm_crtc.h
--- linux-2.6.30.noarch/include/drm/drm_crtc.h.jx 2009-09-09 08:57:39.000000000 -0400
+++ linux-2.6.30.noarch/include/drm/drm_crtc.h 2009-09-09 09:35:24.000000000 -0400
@@ -172,6 +172,7 @@ enum drm_connector_status {
connector_status_connected = 1,
connector_status_disconnected = 2,
connector_status_unknown = 3,
+ connector_status_cached = 4,
};
enum subpixel_order {
diff -up linux-2.6.30.x86_64/drivers/gpu/drm/drm_crtc.c.jx linux-2.6.30.x86_64/drivers/gpu/drm/drm_crtc.c
--- linux-2.6.30.x86_64/drivers/gpu/drm/drm_crtc.c.jx 2009-09-09 10:10:44.000000000 -0400
+++ linux-2.6.30.x86_64/drivers/gpu/drm/drm_crtc.c 2009-09-09 11:23:14.000000000 -0400
@@ -185,7 +185,8 @@ EXPORT_SYMBOL(drm_get_connector_name);
char *drm_get_connector_status_name(enum drm_connector_status status)
{
- if (status == connector_status_connected)
+ if (status == connector_status_connected ||
+ status == connector_status_cached)
return "connected";
else if (status == connector_status_disconnected)
return "disconnected";