drm/i915: add _DSM support
The _DSM method on the integrated graphics device can tell us which
connectors are muxable, so add support for making the call and parsing
out the connector info.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: fix compiler warnings for using uninitialized 'result' and
downgrade error message for non-switchable devices]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4c44e16..349710a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6127,6 +6127,9 @@
drm_kms_helper_poll_fini(dev);
mutex_lock(&dev->struct_mutex);
+ intel_unregister_dsm_handler();
+
+
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
/* Skip inactive CRTCs */
if (!crtc->fb)