This is required for DPMS to work correctly, during a modeset
the DPMS property should be turned off, unless the crtc
is made active in which case it should be set to DPMS on.
Cc: dri-de...@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
drivers/gpu/drm/drm_atomic_helper.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c
b/drivers/gpu/drm/drm_atomic_helper.c
index 70e69904291d..cdec643971a2 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -642,6 +642,12 @@ drm_atomic_helper_update_legacy_modeset_state(struct
drm_device *dev,
/* clear out existing links */
for_each_connector_in_state(old_state, connector, old_conn_state, i) {
+ struct drm_crtc *crtc = connector->state->crtc;
+
+ if (crtc &&
+ drm_atomic_crtc_needs_modeset(crtc->state))
+ connector->dpms = DRM_MODE_DPMS_OFF;
+
if (!connector->encoder)
continue;
@@ -653,14 +659,20 @@ drm_atomic_helper_update_legacy_modeset_state(struct
drm_device *dev,
/* set new links */
for_each_connector_in_state(old_state, connector, old_conn_state, i) {
- if (!connector->state->crtc)
+ struct drm_crtc *crtc = connector->state->crtc;
+
+ if (!crtc)
continue;
+ if (crtc->state->active &&
+ drm_atomic_crtc_needs_modeset(crtc->state))
+ connector->dpms = DRM_MODE_DPMS_ON;
+
if (WARN_ON(!connector->state->best_encoder))
continue;
connector->encoder = connector->state->best_encoder;
- connector->encoder->crtc = connector->state->crtc;
+ connector->encoder->crtc = crtc;
}
/* set legacy state in the crtc structure */
--
2.1.0
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