97  * drm_helper_encoder_in_use - check if a given encoder is in use
98  * @encoder: encoder to check
100  * Checks whether @encoder is with the current mode setting output configuration
105  * True if @encoder is used, false otherwise.
107 bool drm_helper_encoder_in_use(struct drm_encoder *encoder)  in drm_helper_encoder_in_use()  argument
111 	struct drm_device *dev = encoder->dev;  in drm_helper_encoder_in_use()
127 		if (connector->encoder == encoder) {  in drm_helper_encoder_in_use()
150 	struct drm_encoder *encoder;  in drm_helper_crtc_in_use()  local
162 	drm_for_each_encoder(encoder, dev)  in drm_helper_crtc_in_use()
163 		if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder))  in drm_helper_crtc_in_use()
170 drm_encoder_disable(struct drm_encoder *encoder)  in drm_encoder_disable()  argument
172 	const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;  in drm_encoder_disable()
178 		(*encoder_funcs->disable)(encoder);  in drm_encoder_disable()
180 		(*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);  in drm_encoder_disable()
185 	struct drm_encoder *encoder;  in __drm_helper_disable_unused_functions()  local
190 	drm_for_each_encoder(encoder, dev) {  in __drm_helper_disable_unused_functions()
191 		if (!drm_helper_encoder_in_use(encoder)) {  in __drm_helper_disable_unused_functions()
192 			drm_encoder_disable(encoder);  in __drm_helper_disable_unused_functions()
193 			/* disconnect encoder from any connector */  in __drm_helper_disable_unused_functions()
194 			encoder->crtc = NULL;  in __drm_helper_disable_unused_functions()
217  * will remove any CRTC links of unused encoders and encoder links of
250 	struct drm_encoder *encoder;  in drm_crtc_prepare_encoders()  local
252 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_prepare_encoders()
253 		encoder_funcs = encoder->helper_private;  in drm_crtc_prepare_encoders()
258 		if (encoder->crtc == NULL)  in drm_crtc_prepare_encoders()
259 			drm_encoder_disable(encoder);  in drm_crtc_prepare_encoders()
294 	struct drm_encoder *encoder;  in drm_crtc_helper_set_mode()  local
328 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
330 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
333 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
337 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
339 			if (!(ret = encoder_funcs->mode_fixup(encoder, mode,  in drm_crtc_helper_set_mode()
341 				drm_dbg_kms(dev, "[ENCODER:%d:%s] mode fixup failed\n",  in drm_crtc_helper_set_mode()
342 					    encoder->base.id, encoder->name);  in drm_crtc_helper_set_mode()
361 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
363 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
366 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
372 			encoder_funcs->prepare(encoder);  in drm_crtc_helper_set_mode()
386 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
388 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
391 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
395 		drm_dbg_kms(dev, "[ENCODER:%d:%s] set [MODE:%s]\n",  in drm_crtc_helper_set_mode()
396 			    encoder->base.id, encoder->name, mode->name);  in drm_crtc_helper_set_mode()
398 			encoder_funcs->mode_set(encoder, mode, adjusted_mode);  in drm_crtc_helper_set_mode()
404 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
406 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
409 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
414 			encoder_funcs->commit(encoder);  in drm_crtc_helper_set_mode()
466 	struct drm_encoder *encoder;  in drm_crtc_helper_disable()  local
469 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_disable()
472 		if (encoder->crtc != crtc)  in drm_crtc_helper_disable()
477 			if (connector->encoder != encoder)  in drm_crtc_helper_disable()
480 			connector->encoder = NULL;  in drm_crtc_helper_disable()
484 			 * doing this, but since we've decoupled the encoder  in drm_crtc_helper_disable()
490 			/* we keep a reference while the encoder is bound */  in drm_crtc_helper_disable()
506 	struct drm_encoder *encoder;  in drm_connector_get_single_encoder()  local
509 	drm_connector_for_each_possible_encoder(connector, encoder)  in drm_connector_get_single_encoder()
510 		return encoder;  in drm_connector_get_single_encoder()
524  * It first tries to locate the best encoder for each connector by calling the
528  * mode_fixup encoder and CRTC helper operations to adjust the requested mode,
541  * and ->commit() CRTC and encoder helper operations, in that order.
558 	struct drm_encoder **save_connector_encoders, *new_encoder, *encoder;  in drm_crtc_helper_set_config()  local
603 	 * Allocate space for the backup of all (non-pointer) encoder and  in drm_crtc_helper_set_config()
624 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
625 		save_encoder_crtcs[count++] = encoder->crtc;  in drm_crtc_helper_set_config()
631 		save_connector_encoders[count++] = connector->encoder;  in drm_crtc_helper_set_config()
669 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
680 		new_encoder = connector->encoder;  in drm_crtc_helper_set_config()
688 				/* if we can't get an encoder for a connector  in drm_crtc_helper_set_config()
704 		if (new_encoder != connector->encoder) {  in drm_crtc_helper_set_config()
705 			drm_dbg_kms(dev, "[CONNECTOR:%d:%s] encoder changed, full mode switch\n",  in drm_crtc_helper_set_config()
708 			/* If the encoder is reused for another connector, then  in drm_crtc_helper_set_config()
711 			if (connector->encoder)  in drm_crtc_helper_set_config()
712 				connector->encoder->crtc = NULL;  in drm_crtc_helper_set_config()
713 			connector->encoder = new_encoder;  in drm_crtc_helper_set_config()
726 		if (!connector->encoder)  in drm_crtc_helper_set_config()
729 		if (connector->encoder->crtc == set->crtc)  in drm_crtc_helper_set_config()
732 			new_crtc = connector->encoder->crtc;  in drm_crtc_helper_set_config()
739 		/* Make sure the new CRTC will work with the encoder */  in drm_crtc_helper_set_config()
741 		    !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {  in drm_crtc_helper_set_config()
746 		if (new_crtc != connector->encoder->crtc) {  in drm_crtc_helper_set_config()
750 			connector->encoder->crtc = new_crtc;  in drm_crtc_helper_set_config()
811 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
812 		encoder->crtc = save_encoder_crtcs[count++];  in drm_crtc_helper_set_config()
818 		connector->encoder = save_connector_encoders[count++];  in drm_crtc_helper_set_config()
825 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
842 static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)  in drm_helper_choose_encoder_dpms()  argument
847 	struct drm_device *dev = encoder->dev;  in drm_helper_choose_encoder_dpms()
851 		if (connector->encoder == encoder)  in drm_helper_choose_encoder_dpms()
859 /* Helper which handles bridge ordering around encoder dpms */
860 static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode)  in drm_helper_encoder_dpms()  argument
864 	encoder_funcs = encoder->helper_private;  in drm_helper_encoder_dpms()
869 		encoder_funcs->dpms(encoder, mode);  in drm_helper_encoder_dpms()
881 		if (connector->encoder && connector->encoder->crtc == crtc)  in drm_helper_choose_crtc_dpms()
912 	struct drm_encoder *encoder = connector->encoder;  in drm_helper_connector_dpms()  local
913 	struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;  in drm_helper_connector_dpms()
924 	if (encoder)  in drm_helper_connector_dpms()
925 		encoder_dpms = drm_helper_choose_encoder_dpms(encoder);  in drm_helper_connector_dpms()
927 	/* from off to on, do crtc then encoder */  in drm_helper_connector_dpms()
936 		if (encoder)  in drm_helper_connector_dpms()
937 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
940 	/* from on to off, do encoder then crtc */  in drm_helper_connector_dpms()
942 		if (encoder)  in drm_helper_connector_dpms()
943 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
986 	struct drm_encoder *encoder;  in drm_helper_resume_force_mode()  local
1008 			drm_for_each_encoder(encoder, dev) {  in drm_helper_resume_force_mode()
1010 				if(encoder->crtc != crtc)  in drm_helper_resume_force_mode()
1014 							encoder);  in drm_helper_resume_force_mode()
1016 				drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_resume_force_mode()