From: Maarten Lankhorst Date: Mon, 27 Jul 2015 11:24:29 +0000 (+0200) Subject: drm/atomic: Update legacy DPMS state during modesets, v3. X-Git-Tag: firefly_0821_release~176^2~1083^2~37^2 X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=8c10342cb48f3140d9abeadcfd2fa6625d447282;hp=9a69a9ac20f7f3435dd18019f902351c61a9ad1d;p=firefly-linux-kernel-4.4.55.git drm/atomic: Update legacy DPMS state during modesets, v3. This is required for DPMS to work correctly, during a modeset the DPMS property should be turned off, unless the state is crtc is made active in which case it should be set to DPMS on. Changes since v1: - Set DPMS to off when a connector is removed from a crtc too. - Update the legacy dpms property too. - Add an exception for the legacy dpms paths, it updates its own state. Changes since v2: - Do not preserve dpms property. Cc: dri-devel@lists.freedesktop.org Signed-off-by: Maarten Lankhorst Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 57847ae8ce8c..0b475fae067d 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -660,15 +660,29 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, struct drm_crtc_state *old_crtc_state; int i; - /* clear out existing links */ + /* clear out existing links and update dpms */ for_each_connector_in_state(old_state, connector, old_conn_state, i) { - if (!connector->encoder) - continue; + if (connector->encoder) { + WARN_ON(!connector->encoder->crtc); + + connector->encoder->crtc = NULL; + connector->encoder = NULL; + } - WARN_ON(!connector->encoder->crtc); + crtc = connector->state->crtc; + if ((!crtc && old_conn_state->crtc) || + (crtc && drm_atomic_crtc_needs_modeset(crtc->state))) { + struct drm_property *dpms_prop = + dev->mode_config.dpms_property; + int mode = DRM_MODE_DPMS_OFF; - connector->encoder->crtc = NULL; - connector->encoder = NULL; + if (crtc && crtc->state->active) + mode = DRM_MODE_DPMS_ON; + + connector->dpms = mode; + drm_object_property_set_value(&connector->base, + dpms_prop, mode); + } } /* set new links */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 13a6608be689..43b0f17ad1fa 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -12349,16 +12349,9 @@ intel_modeset_update_state(struct drm_atomic_state *state) continue; if (crtc->state->active) { - struct drm_property *dpms_property = - dev->mode_config.dpms_property; - - connector->dpms = DRM_MODE_DPMS_ON; - drm_object_property_set_value(&connector->base, dpms_property, DRM_MODE_DPMS_ON); - intel_encoder = to_intel_encoder(connector->encoder); intel_encoder->connectors_active = true; - } else - connector->dpms = DRM_MODE_DPMS_OFF; + } } }