98  * drm_helper_encoder_in_use - check if a given encoder is in use
99  * @encoder: encoder to check
101  * Checks whether @encoder is with the current mode setting output configuration
106  * True if @encoder is used, false otherwise.
108 bool drm_helper_encoder_in_use(struct drm_encoder *encoder)  in drm_helper_encoder_in_use()  argument
112 	struct drm_device *dev = encoder->dev;  in drm_helper_encoder_in_use()
128 		if (connector->encoder == encoder) {  in drm_helper_encoder_in_use()
151 	struct drm_encoder *encoder;  in drm_helper_crtc_in_use()  local
163 	drm_for_each_encoder(encoder, dev)  in drm_helper_crtc_in_use()
164 		if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder))  in drm_helper_crtc_in_use()
171 drm_encoder_disable(struct drm_encoder *encoder)  in drm_encoder_disable()  argument
173 	const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;  in drm_encoder_disable()
179 		(*encoder_funcs->disable)(encoder);  in drm_encoder_disable()
181 		(*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);  in drm_encoder_disable()
186 	struct drm_encoder *encoder;  in __drm_helper_disable_unused_functions()  local
191 	drm_for_each_encoder(encoder, dev) {  in __drm_helper_disable_unused_functions()
192 		if (!drm_helper_encoder_in_use(encoder)) {  in __drm_helper_disable_unused_functions()
193 			drm_encoder_disable(encoder);  in __drm_helper_disable_unused_functions()
194 			/* disconnect encoder from any connector */  in __drm_helper_disable_unused_functions()
195 			encoder->crtc = NULL;  in __drm_helper_disable_unused_functions()
218  * will remove any CRTC links of unused encoders and encoder links of
251 	struct drm_encoder *encoder;  in drm_crtc_prepare_encoders()  local
253 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_prepare_encoders()
254 		encoder_funcs = encoder->helper_private;  in drm_crtc_prepare_encoders()
259 		if (encoder->crtc == NULL)  in drm_crtc_prepare_encoders()
260 			drm_encoder_disable(encoder);  in drm_crtc_prepare_encoders()
295 	struct drm_encoder *encoder;  in drm_crtc_helper_set_mode()  local
329 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
331 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
334 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
338 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
340 			if (!(ret = encoder_funcs->mode_fixup(encoder, mode,  in drm_crtc_helper_set_mode()
342 				DRM_DEBUG_KMS("Encoder fixup failed\n");  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_DEBUG_KMS("[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()
442 	struct drm_encoder *encoder;  in drm_crtc_helper_disable()  local
445 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_disable()
448 		if (encoder->crtc != crtc)  in drm_crtc_helper_disable()
453 			if (connector->encoder != encoder)  in drm_crtc_helper_disable()
456 			connector->encoder = NULL;  in drm_crtc_helper_disable()
460 			 * doing this, but since we've decoupled the encoder  in drm_crtc_helper_disable()
466 			/* we keep a reference while the encoder is bound */  in drm_crtc_helper_disable()
482 	struct drm_encoder *encoder;  in drm_connector_get_single_encoder()  local
485 	drm_connector_for_each_possible_encoder(connector, encoder)  in drm_connector_get_single_encoder()
486 		return encoder;  in drm_connector_get_single_encoder()
500  * It first tries to locate the best encoder for each connector by calling the
504  * mode_fixup encoder and CRTC helper operations to adjust the requested mode,
517  * and ->commit() CRTC and encoder helper operations, in that order.
534 	struct drm_encoder **save_connector_encoders, *new_encoder, *encoder;  in drm_crtc_helper_set_config()  local
578 	 * Allocate space for the backup of all (non-pointer) encoder and  in drm_crtc_helper_set_config()
599 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
600 		save_encoder_crtcs[count++] = encoder->crtc;  in drm_crtc_helper_set_config()
606 		save_connector_encoders[count++] = connector->encoder;  in drm_crtc_helper_set_config()
642 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
653 		new_encoder = connector->encoder;  in drm_crtc_helper_set_config()
661 				/* if we can't get an encoder for a connector  in drm_crtc_helper_set_config()
676 		if (new_encoder != connector->encoder) {  in drm_crtc_helper_set_config()
677 			DRM_DEBUG_KMS("encoder changed, full mode switch\n");  in drm_crtc_helper_set_config()
679 			/* If the encoder is reused for another connector, then  in drm_crtc_helper_set_config()
682 			if (connector->encoder)  in drm_crtc_helper_set_config()
683 				connector->encoder->crtc = NULL;  in drm_crtc_helper_set_config()
684 			connector->encoder = new_encoder;  in drm_crtc_helper_set_config()
697 		if (!connector->encoder)  in drm_crtc_helper_set_config()
700 		if (connector->encoder->crtc == set->crtc)  in drm_crtc_helper_set_config()
703 			new_crtc = connector->encoder->crtc;  in drm_crtc_helper_set_config()
710 		/* Make sure the new CRTC will work with the encoder */  in drm_crtc_helper_set_config()
712 		    !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {  in drm_crtc_helper_set_config()
717 		if (new_crtc != connector->encoder->crtc) {  in drm_crtc_helper_set_config()
720 			connector->encoder->crtc = new_crtc;  in drm_crtc_helper_set_config()
781 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
782 		encoder->crtc = save_encoder_crtcs[count++];  in drm_crtc_helper_set_config()
788 		connector->encoder = save_connector_encoders[count++];  in drm_crtc_helper_set_config()
795 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
812 static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)  in drm_helper_choose_encoder_dpms()  argument
817 	struct drm_device *dev = encoder->dev;  in drm_helper_choose_encoder_dpms()
821 		if (connector->encoder == encoder)  in drm_helper_choose_encoder_dpms()
829 /* Helper which handles bridge ordering around encoder dpms */
830 static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode)  in drm_helper_encoder_dpms()  argument
834 	encoder_funcs = encoder->helper_private;  in drm_helper_encoder_dpms()
839 		encoder_funcs->dpms(encoder, mode);  in drm_helper_encoder_dpms()
851 		if (connector->encoder && connector->encoder->crtc == crtc)  in drm_helper_choose_crtc_dpms()
882 	struct drm_encoder *encoder = connector->encoder;  in drm_helper_connector_dpms()  local
883 	struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;  in drm_helper_connector_dpms()
894 	if (encoder)  in drm_helper_connector_dpms()
895 		encoder_dpms = drm_helper_choose_encoder_dpms(encoder);  in drm_helper_connector_dpms()
897 	/* from off to on, do crtc then encoder */  in drm_helper_connector_dpms()
906 		if (encoder)  in drm_helper_connector_dpms()
907 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
910 	/* from on to off, do encoder then crtc */  in drm_helper_connector_dpms()
912 		if (encoder)  in drm_helper_connector_dpms()
913 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
956 	struct drm_encoder *encoder;  in drm_helper_resume_force_mode()  local
978 			drm_for_each_encoder(encoder, dev) {  in drm_helper_resume_force_mode()
980 				if(encoder->crtc != crtc)  in drm_helper_resume_force_mode()
984 							encoder);  in drm_helper_resume_force_mode()
986 				drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_resume_force_mode()