1 // SPDX-License-Identifier: GPL-2.0
62 	while (entry->hdisplay && entry->vdisplay) {  in ast_astdp_get_mode_index()
63 		if (entry->hdisplay == hdisplay && entry->vdisplay == vdisplay)  in ast_astdp_get_mode_index()
64 			return entry->mode_index;  in ast_astdp_get_mode_index()
68 	return -EINVAL;  in ast_astdp_get_mode_index()
76 	 * HPD might be set even if no monitor is connected, so also check that  in ast_astdp_is_connected()
92 		return -EIO; /* extension headers not supported */  in ast_astdp_read_edid_block()
96 	 * by acquiring the I/O-register lock.  in ast_astdp_read_edid_block()
98 	mutex_lock(&ast->modeset_lock);  in ast_astdp_read_edid_block()
111 			ret = -EIO;  in ast_astdp_read_edid_block()
117 		 * CRE4[7:0]: Read-Pointer for EDID (Unit: 4bytes); valid range: 0~64  in ast_astdp_read_edid_block()
133 			 *	  of right-click of mouse.  in ast_astdp_read_edid_block()
148 			ret = -EBUSY;  in ast_astdp_read_edid_block()
159 			 * For 128-bytes EDID_1.3,  in ast_astdp_read_edid_block()
160 			 * 1. Add the value of Bytes-126 to Bytes-127.  in ast_astdp_read_edid_block()
161 			 *		The Bytes-127 is Checksum. Sum of all 128bytes should  in ast_astdp_read_edid_block()
163 			 * 2. Modify Bytes-126 to be 0.  in ast_astdp_read_edid_block()
164 			 *		The Bytes-126 indicates the Number of extensions to  in ast_astdp_read_edid_block()
171 		memcpy(buf, ediddata, min((len - i), 4));  in ast_astdp_read_edid_block()
180 	mutex_unlock(&ast->modeset_lock);  in ast_astdp_read_edid_block()
190 	struct drm_device *dev = &ast->base;  in ast_dp_launch()
198 		--i;  in ast_dp_launch()
203 		return -ENODEV;  in ast_dp_launch()
234 	struct drm_device *dev = &ast->base;  in ast_dp_link_training()
273 	struct drm_device *dev = &ast->base;  in ast_dp_set_enable()
309 	res = ast_astdp_get_mode_index(mode->hdisplay, mode->vdisplay);  in ast_astdp_encoder_helper_mode_valid()
320 	struct drm_device *dev = encoder->dev;  in ast_astdp_encoder_helper_atomic_mode_set()
323 	const struct ast_vbios_enhtable *vmode = ast_crtc_state->vmode;  in ast_astdp_encoder_helper_atomic_mode_set()
326 	int mode_index = astdp_conn_state->mode_index;  in ast_astdp_encoder_helper_atomic_mode_set()
330 	if (drm_WARN_ON(dev, vmode->refresh_rate_index < 1 || vmode->refresh_rate_index > 255))  in ast_astdp_encoder_helper_atomic_mode_set()
332 	refresh_rate_index = vmode->refresh_rate_index - 1;  in ast_astdp_encoder_helper_atomic_mode_set()
340 		mode_index = (u8)(mode_index - (u8)refresh_rate_index);  in ast_astdp_encoder_helper_atomic_mode_set()
348 	 * CRE0[7:0]: MISC0 ((0x00: 18-bpp) or (0x20: 24-bpp)  in ast_astdp_encoder_helper_atomic_mode_set()
364 	struct ast_device *ast = to_ast_device(encoder->dev);  in ast_astdp_encoder_helper_atomic_enable()
365 	struct ast_connector *ast_connector = &ast->output.astdp.connector;  in ast_astdp_encoder_helper_atomic_enable()
367 	if (ast_connector->physical_status == connector_status_connected) {  in ast_astdp_encoder_helper_atomic_enable()
379 	struct ast_device *ast = to_ast_device(encoder->dev);  in ast_astdp_encoder_helper_atomic_disable()
389 	const struct drm_display_mode *mode = &crtc_state->mode;  in ast_astdp_encoder_helper_atomic_check()
395 		res = ast_astdp_get_mode_index(mode->hdisplay, mode->vdisplay);  in ast_astdp_encoder_helper_atomic_check()
398 		astdp_conn_state->mode_index = res;  in ast_astdp_encoder_helper_atomic_check()
421 	if (ast_connector->physical_status == connector_status_connected) {  in ast_astdp_connector_helper_get_modes()
422 		struct ast_device *ast = to_ast_device(connector->dev);  in ast_astdp_connector_helper_get_modes()
433 		 * There's no EDID data without a connected monitor. Set BMC-  in ast_astdp_connector_helper_get_modes()
447 						 bool force)  in ast_astdp_connector_helper_detect_ctx()  argument
450 	struct ast_device *ast = to_ast_device(connector->dev);  in ast_astdp_connector_helper_detect_ctx()
454 	mutex_lock(&ast->modeset_lock);  in ast_astdp_connector_helper_detect_ctx()
466 	mutex_unlock(&ast->modeset_lock);  in ast_astdp_connector_helper_detect_ctx()
468 	if (status != ast_connector->physical_status)  in ast_astdp_connector_helper_detect_ctx()
469 		++connector->epoch_counter;  in ast_astdp_connector_helper_detect_ctx()
470 	ast_connector->physical_status = status;  in ast_astdp_connector_helper_detect_ctx()
485 	if (connector->state)  in ast_astdp_connector_reset()
486 		connector->funcs->atomic_destroy_state(connector, connector->state);  in ast_astdp_connector_reset()
489 		__drm_atomic_helper_connector_reset(connector, &astdp_state->base);  in ast_astdp_connector_reset()
498 	struct drm_device *dev = connector->dev;  in ast_astdp_connector_atomic_duplicate_state()
500 	if (drm_WARN_ON(dev, !connector->state))  in ast_astdp_connector_atomic_duplicate_state()
506 	__drm_atomic_helper_connector_duplicate_state(connector, &new_astdp_state->base);  in ast_astdp_connector_atomic_duplicate_state()
508 	astdp_state = to_ast_astdp_connector_state(connector->state);  in ast_astdp_connector_atomic_duplicate_state()
510 	new_astdp_state->mode_index = astdp_state->mode_index;  in ast_astdp_connector_atomic_duplicate_state()
512 	return &new_astdp_state->base;  in ast_astdp_connector_atomic_duplicate_state()
520 	__drm_atomic_helper_connector_destroy_state(&astdp_state->base);  in ast_astdp_connector_atomic_destroy_state()
538 	struct drm_device *dev = &ast->base;  in ast_astdp_output_init()
539 	struct drm_crtc *crtc = &ast->crtc;  in ast_astdp_output_init()
547 	encoder = &ast->output.astdp.encoder;  in ast_astdp_output_init()
554 	encoder->possible_crtcs = drm_crtc_mask(crtc);  in ast_astdp_output_init()
558 	ast_connector = &ast->output.astdp.connector;  in ast_astdp_output_init()
559 	connector = &ast_connector->base;  in ast_astdp_output_init()
566 	connector->interlace_allowed = 0;  in ast_astdp_output_init()
567 	connector->doublescan_allowed = 0;  in ast_astdp_output_init()
568 	connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;  in ast_astdp_output_init()
570 	ast_connector->physical_status = connector->status;  in ast_astdp_output_init()