diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index d5b7f315098c..eec396a57b88 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -433,6 +433,8 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc, ret = drm_atomic_set_mode_prop_for_crtc(state, mode); drm_property_blob_put(mode); return ret; + } else if (property == config->prop_vrr_enabled) { + state->vrr_enabled = val; } else if (property == config->degamma_lut_property) { ret = drm_atomic_replace_property_blob_from_id(dev, &state->degamma_lut, @@ -491,6 +493,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, *val = state->active; else if (property == config->prop_mode_id) *val = (state->mode_blob) ? state->mode_blob->base.id : 0; + else if (property == config->prop_vrr_enabled) + *val = state->vrr_enabled; else if (property == config->degamma_lut_property) *val = (state->degamma_lut) ? state->degamma_lut->base.id : 0; else if (property == config->ctm_property) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 268a182ae189..6f8ddfcfaba5 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -340,6 +340,8 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); drm_object_attach_property(&crtc->base, config->prop_out_fence_ptr, 0); + drm_object_attach_property(&crtc->base, + config->prop_vrr_enabled, 0); } return 0; diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index ee80788f2c40..5670c67f28d4 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -310,6 +310,12 @@ static int drm_mode_create_standard_properties(struct drm_device *dev) return -ENOMEM; dev->mode_config.prop_mode_id = prop; + prop = drm_property_create_bool(dev, 0, + "VRR_ENABLED"); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_vrr_enabled = prop; + prop = drm_property_create(dev, DRM_MODE_PROP_BLOB, "DEGAMMA_LUT", 0); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index b21437bc95bf..39c3900aab3c 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -290,6 +290,15 @@ struct drm_crtc_state { */ u32 pageflip_flags; + /** + * @vrr_enabled: + * + * Indicates if variable refresh rate should be enabled for the CRTC. + * Support for the requested vrr state will depend on driver and + * hardware capabiltiy - lacking support is not treated as failure. + */ + bool vrr_enabled; + /** * @event: * diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 5dbeabdbaf91..9db59a1caf5b 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -645,6 +645,11 @@ struct drm_mode_config { * connectors must be of and active must be set to disabled, too. */ struct drm_property *prop_mode_id; + /** + * @prop_vrr_enabled: Default atomic CRTC property to indicate + * whether variable refresh rate should be enabled on the CRTC. + */ + struct drm_property *prop_vrr_enabled; /** * @dvi_i_subconnector_property: Optional DVI-I property to