drm/i915: Restore planes after load detection

Actually turn the planes back on after were done with
the load detection.

Fixes: 20bdc112bbe4 ("drm/i915: Disable all planes for load detection, v2.")
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180322152313.6561-23-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 54d4c36..182f9bf 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9974,6 +9974,8 @@ found:
        ret = PTR_ERR_OR_ZERO(drm_atomic_get_connector_state(restore_state, connector));
        if (!ret)
                ret = PTR_ERR_OR_ZERO(drm_atomic_get_crtc_state(restore_state, crtc));
+       if (!ret)
+               ret = drm_atomic_add_affected_planes(restore_state, crtc);
        if (ret) {
                DRM_DEBUG_KMS("Failed to create a copy of old state to restore: %i\n", ret);
                goto fail;