From: Jesse Barnes <[email protected]> In set_config we currently try to reset the CRTC if both the requested CRTC and the currently bound one are the same. The reason for this appears to be lost to history (it pre-dates KMS support upstream at least).
Remove this restriction to allow existing configs to be simple flips rather than full mode sets. Signed-off-by: Jesse Barnes <[email protected]> --- drivers/gpu/drm/drm_crtc_helper.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 974196a..35fbb1f 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -659,13 +659,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) } count = 0; + new_crtc = NULL; list_for_each_entry(connector, &dev->mode_config.connector_list, head) { if (!connector->encoder) continue; - if (connector->encoder->crtc == set->crtc) - new_crtc = NULL; - else + if (new_crtc && connector->encoder->crtc != set->crtc) new_crtc = connector->encoder->crtc; for (ro = 0; ro < set->num_connectors; ro++) { -- 1.7.10 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
