85  * drm_helper_encoder_in_use - check if a given encoder is in use
86  * @encoder: encoder to check
88  * Checks whether @encoder is with the current mode setting output configuration
93  * True if @encoder is used, false otherwise.
95 bool drm_helper_encoder_in_use(struct drm_encoder *encoder)  in drm_helper_encoder_in_use()  argument
99 	struct drm_device *dev = encoder->dev;  in drm_helper_encoder_in_use()
115 		if (connector->encoder == encoder) {  in drm_helper_encoder_in_use()
138 	struct drm_encoder *encoder;  in drm_helper_crtc_in_use()  local
150 	drm_for_each_encoder(encoder, dev)  in drm_helper_crtc_in_use()
151 		if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder))  in drm_helper_crtc_in_use()
158 drm_encoder_disable(struct drm_encoder *encoder)  in drm_encoder_disable()  argument
160 	const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;  in drm_encoder_disable()
166 		(*encoder_funcs->disable)(encoder);  in drm_encoder_disable()
168 		(*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF);  in drm_encoder_disable()
173 	struct drm_encoder *encoder;  in __drm_helper_disable_unused_functions()  local
178 	drm_for_each_encoder(encoder, dev) {  in __drm_helper_disable_unused_functions()
179 		if (!drm_helper_encoder_in_use(encoder)) {  in __drm_helper_disable_unused_functions()
180 			drm_encoder_disable(encoder);  in __drm_helper_disable_unused_functions()
181 			/* disconnect encoder from any connector */  in __drm_helper_disable_unused_functions()
182 			encoder->crtc = NULL;  in __drm_helper_disable_unused_functions()
205  * will remove any CRTC links of unused encoders and encoder links of
238 	struct drm_encoder *encoder;  in drm_crtc_prepare_encoders()  local
240 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_prepare_encoders()
241 		encoder_funcs = encoder->helper_private;  in drm_crtc_prepare_encoders()
246 		if (encoder->crtc == NULL)  in drm_crtc_prepare_encoders()
247 			drm_encoder_disable(encoder);  in drm_crtc_prepare_encoders()
282 	struct drm_encoder *encoder;  in drm_crtc_helper_set_mode()  local
316 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
318 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
321 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
325 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
327 			if (!(ret = encoder_funcs->mode_fixup(encoder, mode,  in drm_crtc_helper_set_mode()
329 				DRM_DEBUG_KMS("Encoder fixup failed\n");  in drm_crtc_helper_set_mode()
347 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
349 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
352 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
358 			encoder_funcs->prepare(encoder);  in drm_crtc_helper_set_mode()
372 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
374 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
377 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
381 		DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%s]\n",  in drm_crtc_helper_set_mode()
382 			encoder->base.id, encoder->name, mode->name);  in drm_crtc_helper_set_mode()
384 			encoder_funcs->mode_set(encoder, mode, adjusted_mode);  in drm_crtc_helper_set_mode()
390 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_mode()
392 		if (encoder->crtc != crtc)  in drm_crtc_helper_set_mode()
395 		encoder_funcs = encoder->helper_private;  in drm_crtc_helper_set_mode()
400 			encoder_funcs->commit(encoder);  in drm_crtc_helper_set_mode()
429 	struct drm_encoder *encoder;  in drm_crtc_helper_disable()  local
432 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_disable()
435 		if (encoder->crtc != crtc)  in drm_crtc_helper_disable()
440 			if (connector->encoder != encoder)  in drm_crtc_helper_disable()
443 			connector->encoder = NULL;  in drm_crtc_helper_disable()
447 			 * doing this, but since we've decoupled the encoder  in drm_crtc_helper_disable()
453 			/* we keep a reference while the encoder is bound */  in drm_crtc_helper_disable()
469 	struct drm_encoder *encoder;  in drm_connector_get_single_encoder()  local
472 	drm_connector_for_each_possible_encoder(connector, encoder)  in drm_connector_get_single_encoder()
473 		return encoder;  in drm_connector_get_single_encoder()
487  * It first tries to locate the best encoder for each connector by calling the
491  * mode_fixup encoder and CRTC helper operations to adjust the requested mode,
504  * and ->commit() CRTC and encoder helper operations, in that order.
521 	struct drm_encoder **save_connector_encoders, *new_encoder, *encoder;  in drm_crtc_helper_set_config()  local
565 	 * Allocate space for the backup of all (non-pointer) encoder and  in drm_crtc_helper_set_config()
586 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
587 		save_encoder_crtcs[count++] = encoder->crtc;  in drm_crtc_helper_set_config()
593 		save_connector_encoders[count++] = connector->encoder;  in drm_crtc_helper_set_config()
629 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
640 		new_encoder = connector->encoder;  in drm_crtc_helper_set_config()
648 				/* if we can't get an encoder for a connector  in drm_crtc_helper_set_config()
663 		if (new_encoder != connector->encoder) {  in drm_crtc_helper_set_config()
664 			DRM_DEBUG_KMS("encoder changed, full mode switch\n");  in drm_crtc_helper_set_config()
666 			/* If the encoder is reused for another connector, then  in drm_crtc_helper_set_config()
669 			if (connector->encoder)  in drm_crtc_helper_set_config()
670 				connector->encoder->crtc = NULL;  in drm_crtc_helper_set_config()
671 			connector->encoder = new_encoder;  in drm_crtc_helper_set_config()
684 		if (!connector->encoder)  in drm_crtc_helper_set_config()
687 		if (connector->encoder->crtc == set->crtc)  in drm_crtc_helper_set_config()
690 			new_crtc = connector->encoder->crtc;  in drm_crtc_helper_set_config()
697 		/* Make sure the new CRTC will work with the encoder */  in drm_crtc_helper_set_config()
699 		    !drm_encoder_crtc_ok(connector->encoder, new_crtc)) {  in drm_crtc_helper_set_config()
704 		if (new_crtc != connector->encoder->crtc) {  in drm_crtc_helper_set_config()
707 			connector->encoder->crtc = new_crtc;  in drm_crtc_helper_set_config()
768 	drm_for_each_encoder(encoder, dev) {  in drm_crtc_helper_set_config()
769 		encoder->crtc = save_encoder_crtcs[count++];  in drm_crtc_helper_set_config()
775 		connector->encoder = save_connector_encoders[count++];  in drm_crtc_helper_set_config()
782 		if (set->connectors[ro]->encoder)  in drm_crtc_helper_set_config()
799 static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)  in drm_helper_choose_encoder_dpms()  argument
804 	struct drm_device *dev = encoder->dev;  in drm_helper_choose_encoder_dpms()
808 		if (connector->encoder == encoder)  in drm_helper_choose_encoder_dpms()
816 /* Helper which handles bridge ordering around encoder dpms */
817 static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode)  in drm_helper_encoder_dpms()  argument
821 	encoder_funcs = encoder->helper_private;  in drm_helper_encoder_dpms()
826 		encoder_funcs->dpms(encoder, mode);  in drm_helper_encoder_dpms()
838 		if (connector->encoder && connector->encoder->crtc == crtc)  in drm_helper_choose_crtc_dpms()
869 	struct drm_encoder *encoder = connector->encoder;  in drm_helper_connector_dpms()  local
870 	struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;  in drm_helper_connector_dpms()
881 	if (encoder)  in drm_helper_connector_dpms()
882 		encoder_dpms = drm_helper_choose_encoder_dpms(encoder);  in drm_helper_connector_dpms()
884 	/* from off to on, do crtc then encoder */  in drm_helper_connector_dpms()
893 		if (encoder)  in drm_helper_connector_dpms()
894 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
897 	/* from on to off, do encoder then crtc */  in drm_helper_connector_dpms()
899 		if (encoder)  in drm_helper_connector_dpms()
900 			drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_connector_dpms()
943 	struct drm_encoder *encoder;  in drm_helper_resume_force_mode()  local
965 			drm_for_each_encoder(encoder, dev) {  in drm_helper_resume_force_mode()
967 				if(encoder->crtc != crtc)  in drm_helper_resume_force_mode()
971 							encoder);  in drm_helper_resume_force_mode()
973 				drm_helper_encoder_dpms(encoder, encoder_dpms);  in drm_helper_resume_force_mode()