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()
338 			if (!(ret = encoder_funcs->mode_fixup(encoder, mode,  in drm_crtc_helper_set_mode()
340 				drm_dbg_kms(dev, "[ENCODER:%d:%s] mode fixup failed\n",  in drm_crtc_helper_set_mode()
341 					    encoder->base.id, encoder->name);  in drm_crtc_helper_set_mode()
360 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
362 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
365 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
371 			encoder_funcs->prepare(encoder);  in drm_crtc_helper_set_mode()
385 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
387 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
390 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
394 		drm_dbg_kms(dev, "[ENCODER:%d:%s] set [MODE:%s]\n",  in drm_crtc_helper_set_mode()
395 			    encoder->base.id, encoder->name, mode->name);  in drm_crtc_helper_set_mode()
397 			encoder_funcs->mode_set(encoder, mode, adjusted_mode);  in drm_crtc_helper_set_mode()
403 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
405 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
408 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
413 			encoder_funcs->commit(encoder);  in drm_crtc_helper_set_mode()
465 	struct drm_encoder *encoder;  in drm_crtc_helper_disable()  local
468 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_disable()
471 		if (encoder->crtc != crtc)  in drm_crtc_helper_disable()
476 			if (connector->encoder != encoder)  in drm_crtc_helper_disable()
479 			connector->encoder = NULL;  in drm_crtc_helper_disable()
483 			 * doing this, but since we've decoupled the encoder  in drm_crtc_helper_disable()
489 			/* we keep a reference while the encoder is bound */  in drm_crtc_helper_disable()
505 	struct drm_encoder *encoder;  in drm_connector_get_single_encoder()  local
508 	drm_connector_for_each_possible_encoder(connector, encoder)  in drm_connector_get_single_encoder()
509 		return encoder;  in drm_connector_get_single_encoder()
523  * It first tries to locate the best encoder for each connector by calling the
527  * mode_fixup encoder and CRTC helper operations to adjust the requested mode,
540  * and ->commit() CRTC and encoder helper operations, in that order.
557 	struct drm_encoder **save_connector_encoders, *new_encoder, *encoder;  in drm_crtc_helper_set_config()  local
602 	 * Allocate space for the backup of all (non-pointer) encoder and  in drm_crtc_helper_set_config()
623 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
624 		save_encoder_crtcs[count++] = encoder->crtc;  in drm_crtc_helper_set_config()
630 		save_connector_encoders[count++] = connector->encoder;  in drm_crtc_helper_set_config()
668 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
679 		new_encoder = connector->encoder;  in drm_crtc_helper_set_config()
687 				/* if we can't get an encoder for a connector  in drm_crtc_helper_set_config()
703 		if (new_encoder != connector->encoder) {  in drm_crtc_helper_set_config()
704 			drm_dbg_kms(dev, "[CONNECTOR:%d:%s] encoder changed, full mode switch\n",  in drm_crtc_helper_set_config()
707 			/* If the encoder is reused for another connector, then  in drm_crtc_helper_set_config()
710 			if (connector->encoder)  in drm_crtc_helper_set_config()
711 				connector->encoder->crtc = NULL;  in drm_crtc_helper_set_config()
712 			connector->encoder = new_encoder;  in drm_crtc_helper_set_config()
725 		if (!connector->encoder)  in drm_crtc_helper_set_config()
728 		if (connector->encoder->crtc == set->crtc)  in drm_crtc_helper_set_config()
731 			new_crtc = connector->encoder->crtc;  in drm_crtc_helper_set_config()
738 		/* Make sure the new CRTC will work with the encoder */  in drm_crtc_helper_set_config()
740 		    !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {  in drm_crtc_helper_set_config()
745 		if (new_crtc != connector->encoder->crtc) {  in drm_crtc_helper_set_config()
749 			connector->encoder->crtc = new_crtc;  in drm_crtc_helper_set_config()
810 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
811 		encoder->crtc = save_encoder_crtcs[count++];  in drm_crtc_helper_set_config()
817 		connector->encoder = save_connector_encoders[count++];  in drm_crtc_helper_set_config()
824 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
841 static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)  in drm_helper_choose_encoder_dpms()  argument
846 	struct drm_device *dev = encoder->dev;  in drm_helper_choose_encoder_dpms()
850 		if (connector->encoder == encoder)  in drm_helper_choose_encoder_dpms()
858 /* Helper which handles bridge ordering around encoder dpms */
859 static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode)  in drm_helper_encoder_dpms()  argument
863 	encoder_funcs = encoder->helper_private;  in drm_helper_encoder_dpms()
868 		encoder_funcs->dpms(encoder, mode);  in drm_helper_encoder_dpms()
880 		if (connector->encoder && connector->encoder->crtc == crtc)  in drm_helper_choose_crtc_dpms()
911 	struct drm_encoder *encoder = connector->encoder;  in drm_helper_connector_dpms()  local
912 	struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;  in drm_helper_connector_dpms()
923 	if (encoder)  in drm_helper_connector_dpms()
924 		encoder_dpms = drm_helper_choose_encoder_dpms(encoder);  in drm_helper_connector_dpms()
926 	/* from off to on, do crtc then encoder */  in drm_helper_connector_dpms()
935 		if (encoder)  in drm_helper_connector_dpms()
936 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
939 	/* from on to off, do encoder then crtc */  in drm_helper_connector_dpms()
941 		if (encoder)  in drm_helper_connector_dpms()
942 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
985 	struct drm_encoder *encoder;  in drm_helper_resume_force_mode()  local
1007 			drm_for_each_encoder(encoder, dev) {  in drm_helper_resume_force_mode()
1009 				if(encoder->crtc != crtc)  in drm_helper_resume_force_mode()
1013 							encoder);  in drm_helper_resume_force_mode()
1015 				drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_resume_force_mode()