2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
28 #include "drm_crtc_helper.h"
29 #include "drm_fb_helper.h"
30 #include "radeon_drm.h"
35 radeon_combios_connected_scratch_regs(struct drm_connector *connector,
36 struct drm_encoder *encoder,
39 radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
40 struct drm_encoder *encoder,
44 radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
45 struct drm_connector *drm_connector);
47 void radeon_connector_hotplug(struct drm_connector *connector)
49 struct drm_device *dev = connector->dev;
50 struct radeon_device *rdev = dev->dev_private;
51 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
53 /* bail if the connector does not have hpd pin, e.g.,
56 if (radeon_connector->hpd.hpd == RADEON_HPD_NONE)
59 radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
61 /* if the connector is already off, don't turn it back on */
62 if (connector->dpms != DRM_MODE_DPMS_ON)
65 /* just deal with DP (not eDP) here. */
66 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
67 struct radeon_connector_atom_dig *dig_connector =
68 radeon_connector->con_priv;
70 /* if existing sink type was not DP no need to retrain */
71 if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT)
74 /* first get sink type as it may be reset after (un)plug */
75 dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
76 /* don't do anything if sink is not display port, i.e.,
77 * passive dp->(dvi|hdmi) adaptor
79 if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
80 int saved_dpms = connector->dpms;
81 /* Only turn off the display if it's physically disconnected */
82 if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
83 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
84 } else if (radeon_dp_needs_link_train(radeon_connector)) {
85 /* set it to OFF so that drm_helper_connector_dpms()
86 * won't return immediately since the current state
87 * is ON at this point.
89 connector->dpms = DRM_MODE_DPMS_OFF;
90 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
92 connector->dpms = saved_dpms;
97 static void radeon_property_change_mode(struct drm_encoder *encoder)
99 struct drm_crtc *crtc = encoder->crtc;
101 if (crtc && crtc->enabled) {
102 drm_crtc_helper_set_mode(crtc, &crtc->mode,
103 crtc->x, crtc->y, crtc->fb);
107 radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status)
109 struct drm_device *dev = connector->dev;
110 struct radeon_device *rdev = dev->dev_private;
111 struct drm_encoder *best_encoder = NULL;
112 struct drm_encoder *encoder = NULL;
113 struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
114 struct drm_mode_object *obj;
118 best_encoder = connector_funcs->best_encoder(connector);
120 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
121 if (connector->encoder_ids[i] == 0)
124 obj = drm_mode_object_find(connector->dev,
125 connector->encoder_ids[i],
126 DRM_MODE_OBJECT_ENCODER);
130 encoder = obj_to_encoder(obj);
132 if ((encoder == best_encoder) && (status == connector_status_connected))
137 if (rdev->is_atom_bios)
138 radeon_atombios_connected_scratch_regs(connector, encoder, connected);
140 radeon_combios_connected_scratch_regs(connector, encoder, connected);
145 struct drm_encoder *radeon_find_encoder(struct drm_connector *connector, int encoder_type)
147 struct drm_mode_object *obj;
148 struct drm_encoder *encoder;
151 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
152 if (connector->encoder_ids[i] == 0)
155 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
159 encoder = obj_to_encoder(obj);
160 if (encoder->encoder_type == encoder_type)
166 struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
168 int enc_id = connector->encoder_ids[0];
169 struct drm_mode_object *obj;
170 struct drm_encoder *encoder;
172 /* pick the encoder ids */
174 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
177 encoder = obj_to_encoder(obj);
184 * radeon_connector_analog_encoder_conflict_solve
185 * - search for other connectors sharing this encoder
186 * if priority is true, then set them disconnected if this is connected
187 * if priority is false, set us disconnected if they are connected
189 static enum drm_connector_status
190 radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
191 struct drm_encoder *encoder,
192 enum drm_connector_status current_status,
195 struct drm_device *dev = connector->dev;
196 struct drm_connector *conflict;
197 struct radeon_connector *radeon_conflict;
200 list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
201 if (conflict == connector)
204 radeon_conflict = to_radeon_connector(conflict);
205 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
206 if (conflict->encoder_ids[i] == 0)
209 /* if the IDs match */
210 if (conflict->encoder_ids[i] == encoder->base.id) {
211 if (conflict->status != connector_status_connected)
214 if (radeon_conflict->use_digital)
217 if (priority == true) {
218 DRM_DEBUG_KMS("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
219 DRM_DEBUG_KMS("in favor of %s\n", drm_get_connector_name(connector));
220 conflict->status = connector_status_disconnected;
221 radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
223 DRM_DEBUG_KMS("2: conflicting encoders switching off %s\n", drm_get_connector_name(connector));
224 DRM_DEBUG_KMS("in favor of %s\n", drm_get_connector_name(conflict));
225 current_status = connector_status_disconnected;
231 return current_status;
235 static struct drm_display_mode *radeon_fp_native_mode(struct drm_encoder *encoder)
237 struct drm_device *dev = encoder->dev;
238 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
239 struct drm_display_mode *mode = NULL;
240 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
242 if (native_mode->hdisplay != 0 &&
243 native_mode->vdisplay != 0 &&
244 native_mode->clock != 0) {
245 mode = drm_mode_duplicate(dev, native_mode);
246 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
247 drm_mode_set_name(mode);
249 DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name);
250 } else if (native_mode->hdisplay != 0 &&
251 native_mode->vdisplay != 0) {
252 /* mac laptops without an edid */
253 /* Note that this is not necessarily the exact panel mode,
254 * but an approximation based on the cvt formula. For these
255 * systems we should ideally read the mode info out of the
256 * registers or add a mode table, but this works and is much
259 mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
260 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
261 DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
266 static void radeon_add_common_modes(struct drm_encoder *encoder, struct drm_connector *connector)
268 struct drm_device *dev = encoder->dev;
269 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
270 struct drm_display_mode *mode = NULL;
271 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
276 } common_modes[17] = {
296 for (i = 0; i < 17; i++) {
297 if (radeon_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
298 if (common_modes[i].w > 1024 ||
299 common_modes[i].h > 768)
302 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
303 if (common_modes[i].w > native_mode->hdisplay ||
304 common_modes[i].h > native_mode->vdisplay ||
305 (common_modes[i].w == native_mode->hdisplay &&
306 common_modes[i].h == native_mode->vdisplay))
309 if (common_modes[i].w < 320 || common_modes[i].h < 200)
312 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
313 drm_mode_probed_add(connector, mode);
317 int radeon_connector_set_property(struct drm_connector *connector, struct drm_property *property,
320 struct drm_device *dev = connector->dev;
321 struct radeon_device *rdev = dev->dev_private;
322 struct drm_encoder *encoder;
323 struct radeon_encoder *radeon_encoder;
325 if (property == rdev->mode_info.coherent_mode_property) {
326 struct radeon_encoder_atom_dig *dig;
327 bool new_coherent_mode;
329 /* need to find digital encoder on connector */
330 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
334 radeon_encoder = to_radeon_encoder(encoder);
336 if (!radeon_encoder->enc_priv)
339 dig = radeon_encoder->enc_priv;
340 new_coherent_mode = val ? true : false;
341 if (dig->coherent_mode != new_coherent_mode) {
342 dig->coherent_mode = new_coherent_mode;
343 radeon_property_change_mode(&radeon_encoder->base);
347 if (property == rdev->mode_info.underscan_property) {
348 /* need to find digital encoder on connector */
349 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
353 radeon_encoder = to_radeon_encoder(encoder);
355 if (radeon_encoder->underscan_type != val) {
356 radeon_encoder->underscan_type = val;
357 radeon_property_change_mode(&radeon_encoder->base);
361 if (property == rdev->mode_info.underscan_hborder_property) {
362 /* need to find digital encoder on connector */
363 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
367 radeon_encoder = to_radeon_encoder(encoder);
369 if (radeon_encoder->underscan_hborder != val) {
370 radeon_encoder->underscan_hborder = val;
371 radeon_property_change_mode(&radeon_encoder->base);
375 if (property == rdev->mode_info.underscan_vborder_property) {
376 /* need to find digital encoder on connector */
377 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
381 radeon_encoder = to_radeon_encoder(encoder);
383 if (radeon_encoder->underscan_vborder != val) {
384 radeon_encoder->underscan_vborder = val;
385 radeon_property_change_mode(&radeon_encoder->base);
389 if (property == rdev->mode_info.tv_std_property) {
390 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TVDAC);
392 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_DAC);
398 radeon_encoder = to_radeon_encoder(encoder);
399 if (!radeon_encoder->enc_priv)
401 if (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom) {
402 struct radeon_encoder_atom_dac *dac_int;
403 dac_int = radeon_encoder->enc_priv;
404 dac_int->tv_std = val;
406 struct radeon_encoder_tv_dac *dac_int;
407 dac_int = radeon_encoder->enc_priv;
408 dac_int->tv_std = val;
410 radeon_property_change_mode(&radeon_encoder->base);
413 if (property == rdev->mode_info.load_detect_property) {
414 struct radeon_connector *radeon_connector =
415 to_radeon_connector(connector);
418 radeon_connector->dac_load_detect = false;
420 radeon_connector->dac_load_detect = true;
423 if (property == rdev->mode_info.tmds_pll_property) {
424 struct radeon_encoder_int_tmds *tmds = NULL;
426 /* need to find digital encoder on connector */
427 encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
431 radeon_encoder = to_radeon_encoder(encoder);
433 tmds = radeon_encoder->enc_priv;
438 if (rdev->is_atom_bios)
439 ret = radeon_atombios_get_tmds_info(radeon_encoder, tmds);
441 ret = radeon_legacy_get_tmds_info_from_combios(radeon_encoder, tmds);
443 if (val == 1 || ret == false) {
444 radeon_legacy_get_tmds_info_from_table(radeon_encoder, tmds);
446 radeon_property_change_mode(&radeon_encoder->base);
452 static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
453 struct drm_connector *connector)
455 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
456 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
457 struct drm_display_mode *t, *mode;
459 /* If the EDID preferred mode doesn't match the native mode, use it */
460 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
461 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
462 if (mode->hdisplay != native_mode->hdisplay ||
463 mode->vdisplay != native_mode->vdisplay)
464 memcpy(native_mode, mode, sizeof(*mode));
468 /* Try to get native mode details from EDID if necessary */
469 if (!native_mode->clock) {
470 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
471 if (mode->hdisplay == native_mode->hdisplay &&
472 mode->vdisplay == native_mode->vdisplay) {
473 *native_mode = *mode;
474 drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
475 DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
481 if (!native_mode->clock) {
482 DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
483 radeon_encoder->rmx_type = RMX_OFF;
487 static int radeon_lvds_get_modes(struct drm_connector *connector)
489 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
490 struct drm_encoder *encoder;
492 struct drm_display_mode *mode;
494 if (radeon_connector->ddc_bus) {
495 ret = radeon_ddc_get_modes(radeon_connector);
497 encoder = radeon_best_single_encoder(connector);
499 radeon_fixup_lvds_native_mode(encoder, connector);
500 /* add scaled modes */
501 radeon_add_common_modes(encoder, connector);
507 encoder = radeon_best_single_encoder(connector);
511 /* we have no EDID modes */
512 mode = radeon_fp_native_mode(encoder);
515 drm_mode_probed_add(connector, mode);
516 /* add the width/height from vbios tables if available */
517 connector->display_info.width_mm = mode->width_mm;
518 connector->display_info.height_mm = mode->height_mm;
519 /* add scaled modes */
520 radeon_add_common_modes(encoder, connector);
526 static int radeon_lvds_mode_valid(struct drm_connector *connector,
527 struct drm_display_mode *mode)
529 struct drm_encoder *encoder = radeon_best_single_encoder(connector);
531 if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
535 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
536 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
538 /* AVIVO hardware supports downscaling modes larger than the panel
539 * to the panel size, but I'm not sure this is desirable.
541 if ((mode->hdisplay > native_mode->hdisplay) ||
542 (mode->vdisplay > native_mode->vdisplay))
545 /* if scaling is disabled, block non-native modes */
546 if (radeon_encoder->rmx_type == RMX_OFF) {
547 if ((mode->hdisplay != native_mode->hdisplay) ||
548 (mode->vdisplay != native_mode->vdisplay))
556 static enum drm_connector_status
557 radeon_lvds_detect(struct drm_connector *connector, bool force)
559 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
560 struct drm_encoder *encoder = radeon_best_single_encoder(connector);
561 enum drm_connector_status ret = connector_status_disconnected;
564 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
565 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
567 /* check if panel is valid */
568 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
569 ret = connector_status_connected;
573 /* check for edid as well */
574 if (radeon_connector->edid)
575 ret = connector_status_connected;
577 if (radeon_connector->ddc_bus) {
578 radeon_connector->edid = drm_get_edid(&radeon_connector->base,
579 &radeon_connector->ddc_bus->adapter);
580 if (radeon_connector->edid)
581 ret = connector_status_connected;
584 /* check acpi lid status ??? */
586 radeon_connector_update_scratch_regs(connector, ret);
590 static void radeon_connector_destroy(struct drm_connector *connector)
592 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
594 if (radeon_connector->edid)
595 kfree(radeon_connector->edid);
596 kfree(radeon_connector->con_priv);
597 drm_sysfs_connector_remove(connector);
598 drm_connector_cleanup(connector);
602 static int radeon_lvds_set_property(struct drm_connector *connector,
603 struct drm_property *property,
606 struct drm_device *dev = connector->dev;
607 struct radeon_encoder *radeon_encoder;
608 enum radeon_rmx_type rmx_type;
611 if (property != dev->mode_config.scaling_mode_property)
614 if (connector->encoder)
615 radeon_encoder = to_radeon_encoder(connector->encoder);
617 struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
618 radeon_encoder = to_radeon_encoder(connector_funcs->best_encoder(connector));
622 case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
623 case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
624 case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
626 case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
628 if (radeon_encoder->rmx_type == rmx_type)
631 radeon_encoder->rmx_type = rmx_type;
633 radeon_property_change_mode(&radeon_encoder->base);
638 struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
639 .get_modes = radeon_lvds_get_modes,
640 .mode_valid = radeon_lvds_mode_valid,
641 .best_encoder = radeon_best_single_encoder,
644 struct drm_connector_funcs radeon_lvds_connector_funcs = {
645 .dpms = drm_helper_connector_dpms,
646 .detect = radeon_lvds_detect,
647 .fill_modes = drm_helper_probe_single_connector_modes,
648 .destroy = radeon_connector_destroy,
649 .set_property = radeon_lvds_set_property,
652 static int radeon_vga_get_modes(struct drm_connector *connector)
654 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
657 ret = radeon_ddc_get_modes(radeon_connector);
662 static int radeon_vga_mode_valid(struct drm_connector *connector,
663 struct drm_display_mode *mode)
665 struct drm_device *dev = connector->dev;
666 struct radeon_device *rdev = dev->dev_private;
668 /* XXX check mode bandwidth */
670 if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
671 return MODE_CLOCK_HIGH;
676 static enum drm_connector_status
677 radeon_vga_detect(struct drm_connector *connector, bool force)
679 struct drm_device *dev = connector->dev;
680 struct radeon_device *rdev = dev->dev_private;
681 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
682 struct drm_encoder *encoder;
683 struct drm_encoder_helper_funcs *encoder_funcs;
685 enum drm_connector_status ret = connector_status_disconnected;
687 encoder = radeon_best_single_encoder(connector);
689 ret = connector_status_disconnected;
691 if (radeon_connector->ddc_bus)
692 dret = radeon_ddc_probe(radeon_connector, false);
694 radeon_connector->detected_by_load = false;
695 if (radeon_connector->edid) {
696 kfree(radeon_connector->edid);
697 radeon_connector->edid = NULL;
699 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
701 if (!radeon_connector->edid) {
702 DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
703 drm_get_connector_name(connector));
704 ret = connector_status_connected;
706 radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
708 /* some oems have boards with separate digital and analog connectors
709 * with a shared ddc line (often vga + hdmi)
711 if (radeon_connector->use_digital && radeon_connector->shared_ddc) {
712 kfree(radeon_connector->edid);
713 radeon_connector->edid = NULL;
714 ret = connector_status_disconnected;
716 ret = connector_status_connected;
720 /* if we aren't forcing don't do destructive polling */
722 /* only return the previous status if we last
723 * detected a monitor via load.
725 if (radeon_connector->detected_by_load)
726 return connector->status;
731 if (radeon_connector->dac_load_detect && encoder) {
732 encoder_funcs = encoder->helper_private;
733 ret = encoder_funcs->detect(encoder, connector);
734 if (ret != connector_status_disconnected)
735 radeon_connector->detected_by_load = true;
739 if (ret == connector_status_connected)
740 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
742 /* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
743 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
744 * by other means, assume the CRT is connected and use that EDID.
746 if ((!rdev->is_atom_bios) &&
747 (ret == connector_status_disconnected) &&
748 rdev->mode_info.bios_hardcoded_edid_size) {
749 ret = connector_status_connected;
752 radeon_connector_update_scratch_regs(connector, ret);
756 struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
757 .get_modes = radeon_vga_get_modes,
758 .mode_valid = radeon_vga_mode_valid,
759 .best_encoder = radeon_best_single_encoder,
762 struct drm_connector_funcs radeon_vga_connector_funcs = {
763 .dpms = drm_helper_connector_dpms,
764 .detect = radeon_vga_detect,
765 .fill_modes = drm_helper_probe_single_connector_modes,
766 .destroy = radeon_connector_destroy,
767 .set_property = radeon_connector_set_property,
770 static int radeon_tv_get_modes(struct drm_connector *connector)
772 struct drm_device *dev = connector->dev;
773 struct radeon_device *rdev = dev->dev_private;
774 struct drm_display_mode *tv_mode;
775 struct drm_encoder *encoder;
777 encoder = radeon_best_single_encoder(connector);
781 /* avivo chips can scale any mode */
782 if (rdev->family >= CHIP_RS600)
783 /* add scaled modes */
784 radeon_add_common_modes(encoder, connector);
786 /* only 800x600 is supported right now on pre-avivo chips */
787 tv_mode = drm_cvt_mode(dev, 800, 600, 60, false, false, false);
788 tv_mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
789 drm_mode_probed_add(connector, tv_mode);
794 static int radeon_tv_mode_valid(struct drm_connector *connector,
795 struct drm_display_mode *mode)
797 if ((mode->hdisplay > 1024) || (mode->vdisplay > 768))
798 return MODE_CLOCK_RANGE;
802 static enum drm_connector_status
803 radeon_tv_detect(struct drm_connector *connector, bool force)
805 struct drm_encoder *encoder;
806 struct drm_encoder_helper_funcs *encoder_funcs;
807 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
808 enum drm_connector_status ret = connector_status_disconnected;
810 if (!radeon_connector->dac_load_detect)
813 encoder = radeon_best_single_encoder(connector);
815 ret = connector_status_disconnected;
817 encoder_funcs = encoder->helper_private;
818 ret = encoder_funcs->detect(encoder, connector);
820 if (ret == connector_status_connected)
821 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, false);
822 radeon_connector_update_scratch_regs(connector, ret);
826 struct drm_connector_helper_funcs radeon_tv_connector_helper_funcs = {
827 .get_modes = radeon_tv_get_modes,
828 .mode_valid = radeon_tv_mode_valid,
829 .best_encoder = radeon_best_single_encoder,
832 struct drm_connector_funcs radeon_tv_connector_funcs = {
833 .dpms = drm_helper_connector_dpms,
834 .detect = radeon_tv_detect,
835 .fill_modes = drm_helper_probe_single_connector_modes,
836 .destroy = radeon_connector_destroy,
837 .set_property = radeon_connector_set_property,
840 static int radeon_dvi_get_modes(struct drm_connector *connector)
842 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
845 ret = radeon_ddc_get_modes(radeon_connector);
851 * Do a DDC probe, if DDC probe passes, get the full EDID so
852 * we can do analog/digital monitor detection at this point.
853 * If the monitor is an analog monitor or we got no DDC,
854 * we need to find the DAC encoder object for this connector.
855 * If we got no DDC, we do load detection on the DAC encoder object.
856 * If we got analog DDC or load detection passes on the DAC encoder
857 * we have to check if this analog encoder is shared with anyone else (TV)
858 * if its shared we have to set the other connector to disconnected.
860 static enum drm_connector_status
861 radeon_dvi_detect(struct drm_connector *connector, bool force)
863 struct drm_device *dev = connector->dev;
864 struct radeon_device *rdev = dev->dev_private;
865 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
866 struct drm_encoder *encoder = NULL;
867 struct drm_encoder_helper_funcs *encoder_funcs;
868 struct drm_mode_object *obj;
870 enum drm_connector_status ret = connector_status_disconnected;
873 if (radeon_connector->ddc_bus)
874 dret = radeon_ddc_probe(radeon_connector, false);
876 radeon_connector->detected_by_load = false;
877 if (radeon_connector->edid) {
878 kfree(radeon_connector->edid);
879 radeon_connector->edid = NULL;
881 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
883 if (!radeon_connector->edid) {
884 DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
885 drm_get_connector_name(connector));
886 /* rs690 seems to have a problem with connectors not existing and always
887 * return a block of 0's. If we see this just stop polling on this output */
888 if ((rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740) && radeon_connector->base.null_edid_counter) {
889 ret = connector_status_disconnected;
890 DRM_ERROR("%s: detected RS690 floating bus bug, stopping ddc detect\n", drm_get_connector_name(connector));
891 radeon_connector->ddc_bus = NULL;
894 radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
896 /* some oems have boards with separate digital and analog connectors
897 * with a shared ddc line (often vga + hdmi)
899 if ((!radeon_connector->use_digital) && radeon_connector->shared_ddc) {
900 kfree(radeon_connector->edid);
901 radeon_connector->edid = NULL;
902 ret = connector_status_disconnected;
904 ret = connector_status_connected;
906 /* This gets complicated. We have boards with VGA + HDMI with a
907 * shared DDC line and we have boards with DVI-D + HDMI with a shared
908 * DDC line. The latter is more complex because with DVI<->HDMI adapters
909 * you don't really know what's connected to which port as both are digital.
911 if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
912 struct drm_connector *list_connector;
913 struct radeon_connector *list_radeon_connector;
914 list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) {
915 if (connector == list_connector)
917 list_radeon_connector = to_radeon_connector(list_connector);
918 if (list_radeon_connector->shared_ddc &&
919 (list_radeon_connector->ddc_bus->rec.i2c_id ==
920 radeon_connector->ddc_bus->rec.i2c_id)) {
921 /* cases where both connectors are digital */
922 if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) {
923 /* hpd is our only option in this case */
924 if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
925 kfree(radeon_connector->edid);
926 radeon_connector->edid = NULL;
927 ret = connector_status_disconnected;
936 if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
939 /* DVI-D and HDMI-A are digital only */
940 if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
941 (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
944 /* if we aren't forcing don't do destructive polling */
946 /* only return the previous status if we last
947 * detected a monitor via load.
949 if (radeon_connector->detected_by_load)
950 ret = connector->status;
954 /* find analog encoder */
955 if (radeon_connector->dac_load_detect) {
956 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
957 if (connector->encoder_ids[i] == 0)
960 obj = drm_mode_object_find(connector->dev,
961 connector->encoder_ids[i],
962 DRM_MODE_OBJECT_ENCODER);
966 encoder = obj_to_encoder(obj);
968 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC &&
969 encoder->encoder_type != DRM_MODE_ENCODER_TVDAC)
972 encoder_funcs = encoder->helper_private;
973 if (encoder_funcs->detect) {
974 if (ret != connector_status_connected) {
975 ret = encoder_funcs->detect(encoder, connector);
976 if (ret == connector_status_connected) {
977 radeon_connector->use_digital = false;
979 if (ret != connector_status_disconnected)
980 radeon_connector->detected_by_load = true;
987 if ((ret == connector_status_connected) && (radeon_connector->use_digital == false) &&
989 ret = radeon_connector_analog_encoder_conflict_solve(connector, encoder, ret, true);
992 /* RN50 and some RV100 asics in servers often have a hardcoded EDID in the
993 * vbios to deal with KVMs. If we have one and are not able to detect a monitor
994 * by other means, assume the DFP is connected and use that EDID. In most
995 * cases the DVI port is actually a virtual KVM port connected to the service
999 if ((!rdev->is_atom_bios) &&
1000 (ret == connector_status_disconnected) &&
1001 rdev->mode_info.bios_hardcoded_edid_size) {
1002 radeon_connector->use_digital = true;
1003 ret = connector_status_connected;
1006 /* updated in get modes as well since we need to know if it's analog or digital */
1007 radeon_connector_update_scratch_regs(connector, ret);
1011 /* okay need to be smart in here about which encoder to pick */
1012 struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
1014 int enc_id = connector->encoder_ids[0];
1015 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1016 struct drm_mode_object *obj;
1017 struct drm_encoder *encoder;
1019 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1020 if (connector->encoder_ids[i] == 0)
1023 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
1027 encoder = obj_to_encoder(obj);
1029 if (radeon_connector->use_digital == true) {
1030 if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
1033 if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
1034 encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
1039 /* see if we have a default encoder TODO */
1041 /* then check use digitial */
1042 /* pick the first one */
1044 obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
1047 encoder = obj_to_encoder(obj);
1053 static void radeon_dvi_force(struct drm_connector *connector)
1055 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1056 if (connector->force == DRM_FORCE_ON)
1057 radeon_connector->use_digital = false;
1058 if (connector->force == DRM_FORCE_ON_DIGITAL)
1059 radeon_connector->use_digital = true;
1062 static int radeon_dvi_mode_valid(struct drm_connector *connector,
1063 struct drm_display_mode *mode)
1065 struct drm_device *dev = connector->dev;
1066 struct radeon_device *rdev = dev->dev_private;
1067 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1069 /* XXX check mode bandwidth */
1071 /* clocks over 135 MHz have heat issues with DVI on RV100 */
1072 if (radeon_connector->use_digital &&
1073 (rdev->family == CHIP_RV100) &&
1074 (mode->clock > 135000))
1075 return MODE_CLOCK_HIGH;
1077 if (radeon_connector->use_digital && (mode->clock > 165000)) {
1078 if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
1079 (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
1080 (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
1082 else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) {
1083 if (ASIC_IS_DCE3(rdev)) {
1084 /* HDMI 1.3+ supports max clock of 340 Mhz */
1085 if (mode->clock > 340000)
1086 return MODE_CLOCK_HIGH;
1090 return MODE_CLOCK_HIGH;
1092 return MODE_CLOCK_HIGH;
1095 /* check against the max pixel clock */
1096 if ((mode->clock / 10) > rdev->clock.max_pixel_clock)
1097 return MODE_CLOCK_HIGH;
1102 struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
1103 .get_modes = radeon_dvi_get_modes,
1104 .mode_valid = radeon_dvi_mode_valid,
1105 .best_encoder = radeon_dvi_encoder,
1108 struct drm_connector_funcs radeon_dvi_connector_funcs = {
1109 .dpms = drm_helper_connector_dpms,
1110 .detect = radeon_dvi_detect,
1111 .fill_modes = drm_helper_probe_single_connector_modes,
1112 .set_property = radeon_connector_set_property,
1113 .destroy = radeon_connector_destroy,
1114 .force = radeon_dvi_force,
1117 static void radeon_dp_connector_destroy(struct drm_connector *connector)
1119 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1120 struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1122 if (radeon_connector->edid)
1123 kfree(radeon_connector->edid);
1124 if (radeon_dig_connector->dp_i2c_bus)
1125 radeon_i2c_destroy(radeon_dig_connector->dp_i2c_bus);
1126 kfree(radeon_connector->con_priv);
1127 drm_sysfs_connector_remove(connector);
1128 drm_connector_cleanup(connector);
1132 static int radeon_dp_get_modes(struct drm_connector *connector)
1134 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1135 struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1136 struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1139 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1140 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1141 struct drm_display_mode *mode;
1143 if (!radeon_dig_connector->edp_on)
1144 atombios_set_edp_panel_power(connector,
1145 ATOM_TRANSMITTER_ACTION_POWER_ON);
1146 ret = radeon_ddc_get_modes(radeon_connector);
1147 if (!radeon_dig_connector->edp_on)
1148 atombios_set_edp_panel_power(connector,
1149 ATOM_TRANSMITTER_ACTION_POWER_OFF);
1153 radeon_fixup_lvds_native_mode(encoder, connector);
1154 /* add scaled modes */
1155 radeon_add_common_modes(encoder, connector);
1160 encoder = radeon_best_single_encoder(connector);
1164 /* we have no EDID modes */
1165 mode = radeon_fp_native_mode(encoder);
1168 drm_mode_probed_add(connector, mode);
1169 /* add the width/height from vbios tables if available */
1170 connector->display_info.width_mm = mode->width_mm;
1171 connector->display_info.height_mm = mode->height_mm;
1172 /* add scaled modes */
1173 radeon_add_common_modes(encoder, connector);
1176 /* need to setup ddc on the bridge */
1177 if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1178 ENCODER_OBJECT_ID_NONE) {
1180 radeon_atom_ext_encoder_setup_ddc(encoder);
1182 ret = radeon_ddc_get_modes(radeon_connector);
1188 u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector)
1190 struct drm_mode_object *obj;
1191 struct drm_encoder *encoder;
1192 struct radeon_encoder *radeon_encoder;
1195 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1196 if (connector->encoder_ids[i] == 0)
1199 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
1203 encoder = obj_to_encoder(obj);
1204 radeon_encoder = to_radeon_encoder(encoder);
1206 switch (radeon_encoder->encoder_id) {
1207 case ENCODER_OBJECT_ID_TRAVIS:
1208 case ENCODER_OBJECT_ID_NUTMEG:
1209 return radeon_encoder->encoder_id;
1215 return ENCODER_OBJECT_ID_NONE;
1218 bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector)
1220 struct drm_mode_object *obj;
1221 struct drm_encoder *encoder;
1222 struct radeon_encoder *radeon_encoder;
1226 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1227 if (connector->encoder_ids[i] == 0)
1230 obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
1234 encoder = obj_to_encoder(obj);
1235 radeon_encoder = to_radeon_encoder(encoder);
1236 if (radeon_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
1243 bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
1245 struct drm_device *dev = connector->dev;
1246 struct radeon_device *rdev = dev->dev_private;
1248 if (ASIC_IS_DCE5(rdev) &&
1249 (rdev->clock.dp_extclk >= 53900) &&
1250 radeon_connector_encoder_is_hbr2(connector)) {
1257 static enum drm_connector_status
1258 radeon_dp_detect(struct drm_connector *connector, bool force)
1260 struct drm_device *dev = connector->dev;
1261 struct radeon_device *rdev = dev->dev_private;
1262 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1263 enum drm_connector_status ret = connector_status_disconnected;
1264 struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1265 struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1267 if (radeon_connector->edid) {
1268 kfree(radeon_connector->edid);
1269 radeon_connector->edid = NULL;
1272 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1273 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1275 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1276 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1278 /* check if panel is valid */
1279 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
1280 ret = connector_status_connected;
1282 /* eDP is always DP */
1283 radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1284 if (!radeon_dig_connector->edp_on)
1285 atombios_set_edp_panel_power(connector,
1286 ATOM_TRANSMITTER_ACTION_POWER_ON);
1287 if (radeon_dp_getdpcd(radeon_connector))
1288 ret = connector_status_connected;
1289 if (!radeon_dig_connector->edp_on)
1290 atombios_set_edp_panel_power(connector,
1291 ATOM_TRANSMITTER_ACTION_POWER_OFF);
1292 } else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1293 ENCODER_OBJECT_ID_NONE) {
1294 /* DP bridges are always DP */
1295 radeon_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1296 /* get the DPCD from the bridge */
1297 radeon_dp_getdpcd(radeon_connector);
1300 /* setup ddc on the bridge */
1301 radeon_atom_ext_encoder_setup_ddc(encoder);
1302 /* bridge chips are always aux */
1303 if (radeon_ddc_probe(radeon_connector, true)) /* try DDC */
1304 ret = connector_status_connected;
1305 else if (radeon_connector->dac_load_detect) { /* try load detection */
1306 struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
1307 ret = encoder_funcs->detect(encoder, connector);
1311 radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
1312 if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
1313 ret = connector_status_connected;
1314 if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
1315 radeon_dp_getdpcd(radeon_connector);
1317 if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1318 if (radeon_dp_getdpcd(radeon_connector))
1319 ret = connector_status_connected;
1321 /* try non-aux ddc (DP to DVI/HMDI/etc. adapter) */
1322 if (radeon_ddc_probe(radeon_connector, false))
1323 ret = connector_status_connected;
1328 radeon_connector_update_scratch_regs(connector, ret);
1332 static int radeon_dp_mode_valid(struct drm_connector *connector,
1333 struct drm_display_mode *mode)
1335 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1336 struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
1338 /* XXX check mode bandwidth */
1340 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1341 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1342 struct drm_encoder *encoder = radeon_best_single_encoder(connector);
1344 if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
1348 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
1349 struct drm_display_mode *native_mode = &radeon_encoder->native_mode;
1351 /* AVIVO hardware supports downscaling modes larger than the panel
1352 * to the panel size, but I'm not sure this is desirable.
1354 if ((mode->hdisplay > native_mode->hdisplay) ||
1355 (mode->vdisplay > native_mode->vdisplay))
1358 /* if scaling is disabled, block non-native modes */
1359 if (radeon_encoder->rmx_type == RMX_OFF) {
1360 if ((mode->hdisplay != native_mode->hdisplay) ||
1361 (mode->vdisplay != native_mode->vdisplay))
1367 if ((radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
1368 (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
1369 return radeon_dp_mode_valid_helper(connector, mode);
1375 struct drm_connector_helper_funcs radeon_dp_connector_helper_funcs = {
1376 .get_modes = radeon_dp_get_modes,
1377 .mode_valid = radeon_dp_mode_valid,
1378 .best_encoder = radeon_dvi_encoder,
1381 struct drm_connector_funcs radeon_dp_connector_funcs = {
1382 .dpms = drm_helper_connector_dpms,
1383 .detect = radeon_dp_detect,
1384 .fill_modes = drm_helper_probe_single_connector_modes,
1385 .set_property = radeon_connector_set_property,
1386 .destroy = radeon_dp_connector_destroy,
1387 .force = radeon_dvi_force,
1390 static const struct drm_connector_funcs radeon_edp_connector_funcs = {
1391 .dpms = drm_helper_connector_dpms,
1392 .detect = radeon_dp_detect,
1393 .fill_modes = drm_helper_probe_single_connector_modes,
1394 .set_property = radeon_lvds_set_property,
1395 .destroy = radeon_dp_connector_destroy,
1396 .force = radeon_dvi_force,
1399 static const struct drm_connector_funcs radeon_lvds_bridge_connector_funcs = {
1400 .dpms = drm_helper_connector_dpms,
1401 .detect = radeon_dp_detect,
1402 .fill_modes = drm_helper_probe_single_connector_modes,
1403 .set_property = radeon_lvds_set_property,
1404 .destroy = radeon_dp_connector_destroy,
1405 .force = radeon_dvi_force,
1409 radeon_add_atom_connector(struct drm_device *dev,
1410 uint32_t connector_id,
1411 uint32_t supported_device,
1413 struct radeon_i2c_bus_rec *i2c_bus,
1414 uint32_t igp_lane_info,
1415 uint16_t connector_object_id,
1416 struct radeon_hpd *hpd,
1417 struct radeon_router *router)
1419 struct radeon_device *rdev = dev->dev_private;
1420 struct drm_connector *connector;
1421 struct radeon_connector *radeon_connector;
1422 struct radeon_connector_atom_dig *radeon_dig_connector;
1423 struct drm_encoder *encoder;
1424 struct radeon_encoder *radeon_encoder;
1425 uint32_t subpixel_order = SubPixelNone;
1426 bool shared_ddc = false;
1427 bool is_dp_bridge = false;
1429 if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1432 /* if the user selected tv=0 don't try and add the connector */
1433 if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
1434 (connector_type == DRM_MODE_CONNECTOR_Composite) ||
1435 (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
1439 /* see if we already added it */
1440 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1441 radeon_connector = to_radeon_connector(connector);
1442 if (radeon_connector->connector_id == connector_id) {
1443 radeon_connector->devices |= supported_device;
1446 if (radeon_connector->ddc_bus && i2c_bus->valid) {
1447 if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
1448 radeon_connector->shared_ddc = true;
1451 if (radeon_connector->router_bus && router->ddc_valid &&
1452 (radeon_connector->router.router_id == router->router_id)) {
1453 radeon_connector->shared_ddc = false;
1459 /* check if it's a dp bridge */
1460 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1461 radeon_encoder = to_radeon_encoder(encoder);
1462 if (radeon_encoder->devices & supported_device) {
1463 switch (radeon_encoder->encoder_id) {
1464 case ENCODER_OBJECT_ID_TRAVIS:
1465 case ENCODER_OBJECT_ID_NUTMEG:
1466 is_dp_bridge = true;
1474 radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
1475 if (!radeon_connector)
1478 connector = &radeon_connector->base;
1480 radeon_connector->connector_id = connector_id;
1481 radeon_connector->devices = supported_device;
1482 radeon_connector->shared_ddc = shared_ddc;
1483 radeon_connector->connector_object_id = connector_object_id;
1484 radeon_connector->hpd = *hpd;
1486 radeon_connector->router = *router;
1487 if (router->ddc_valid || router->cd_valid) {
1488 radeon_connector->router_bus = radeon_i2c_lookup(rdev, &router->i2c_info);
1489 if (!radeon_connector->router_bus)
1490 DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n");
1494 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1495 if (!radeon_dig_connector)
1497 radeon_dig_connector->igp_lane_info = igp_lane_info;
1498 radeon_connector->con_priv = radeon_dig_connector;
1499 if (i2c_bus->valid) {
1500 /* add DP i2c bus */
1501 if (connector_type == DRM_MODE_CONNECTOR_eDP)
1502 radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, i2c_bus, "eDP-auxch");
1504 radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, i2c_bus, "DP-auxch");
1505 if (!radeon_dig_connector->dp_i2c_bus)
1506 DRM_ERROR("DP: Failed to assign dp ddc bus! Check dmesg for i2c errors.\n");
1507 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1508 if (!radeon_connector->ddc_bus)
1509 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1511 switch (connector_type) {
1512 case DRM_MODE_CONNECTOR_VGA:
1513 case DRM_MODE_CONNECTOR_DVIA:
1515 drm_connector_init(dev, &radeon_connector->base,
1516 &radeon_dp_connector_funcs, connector_type);
1517 drm_connector_helper_add(&radeon_connector->base,
1518 &radeon_dp_connector_helper_funcs);
1519 connector->interlace_allowed = true;
1520 connector->doublescan_allowed = true;
1521 radeon_connector->dac_load_detect = true;
1522 drm_connector_attach_property(&radeon_connector->base,
1523 rdev->mode_info.load_detect_property,
1526 case DRM_MODE_CONNECTOR_DVII:
1527 case DRM_MODE_CONNECTOR_DVID:
1528 case DRM_MODE_CONNECTOR_HDMIA:
1529 case DRM_MODE_CONNECTOR_HDMIB:
1530 case DRM_MODE_CONNECTOR_DisplayPort:
1531 drm_connector_init(dev, &radeon_connector->base,
1532 &radeon_dp_connector_funcs, connector_type);
1533 drm_connector_helper_add(&radeon_connector->base,
1534 &radeon_dp_connector_helper_funcs);
1535 drm_connector_attach_property(&radeon_connector->base,
1536 rdev->mode_info.underscan_property,
1538 drm_connector_attach_property(&radeon_connector->base,
1539 rdev->mode_info.underscan_hborder_property,
1541 drm_connector_attach_property(&radeon_connector->base,
1542 rdev->mode_info.underscan_vborder_property,
1544 subpixel_order = SubPixelHorizontalRGB;
1545 connector->interlace_allowed = true;
1546 if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1547 connector->doublescan_allowed = true;
1549 connector->doublescan_allowed = false;
1550 if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1551 radeon_connector->dac_load_detect = true;
1552 drm_connector_attach_property(&radeon_connector->base,
1553 rdev->mode_info.load_detect_property,
1557 case DRM_MODE_CONNECTOR_LVDS:
1558 case DRM_MODE_CONNECTOR_eDP:
1559 drm_connector_init(dev, &radeon_connector->base,
1560 &radeon_lvds_bridge_connector_funcs, connector_type);
1561 drm_connector_helper_add(&radeon_connector->base,
1562 &radeon_dp_connector_helper_funcs);
1563 drm_connector_attach_property(&radeon_connector->base,
1564 dev->mode_config.scaling_mode_property,
1565 DRM_MODE_SCALE_FULLSCREEN);
1566 subpixel_order = SubPixelHorizontalRGB;
1567 connector->interlace_allowed = false;
1568 connector->doublescan_allowed = false;
1572 switch (connector_type) {
1573 case DRM_MODE_CONNECTOR_VGA:
1574 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1575 drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1576 if (i2c_bus->valid) {
1577 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1578 if (!radeon_connector->ddc_bus)
1579 DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1581 radeon_connector->dac_load_detect = true;
1582 drm_connector_attach_property(&radeon_connector->base,
1583 rdev->mode_info.load_detect_property,
1585 /* no HPD on analog connectors */
1586 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1587 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1588 connector->interlace_allowed = true;
1589 connector->doublescan_allowed = true;
1591 case DRM_MODE_CONNECTOR_DVIA:
1592 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1593 drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1594 if (i2c_bus->valid) {
1595 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1596 if (!radeon_connector->ddc_bus)
1597 DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1599 radeon_connector->dac_load_detect = true;
1600 drm_connector_attach_property(&radeon_connector->base,
1601 rdev->mode_info.load_detect_property,
1603 /* no HPD on analog connectors */
1604 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1605 connector->interlace_allowed = true;
1606 connector->doublescan_allowed = true;
1608 case DRM_MODE_CONNECTOR_DVII:
1609 case DRM_MODE_CONNECTOR_DVID:
1610 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1611 if (!radeon_dig_connector)
1613 radeon_dig_connector->igp_lane_info = igp_lane_info;
1614 radeon_connector->con_priv = radeon_dig_connector;
1615 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
1616 drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
1617 if (i2c_bus->valid) {
1618 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1619 if (!radeon_connector->ddc_bus)
1620 DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1622 subpixel_order = SubPixelHorizontalRGB;
1623 drm_connector_attach_property(&radeon_connector->base,
1624 rdev->mode_info.coherent_mode_property,
1626 if (ASIC_IS_AVIVO(rdev)) {
1627 drm_connector_attach_property(&radeon_connector->base,
1628 rdev->mode_info.underscan_property,
1630 drm_connector_attach_property(&radeon_connector->base,
1631 rdev->mode_info.underscan_hborder_property,
1633 drm_connector_attach_property(&radeon_connector->base,
1634 rdev->mode_info.underscan_vborder_property,
1637 if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1638 radeon_connector->dac_load_detect = true;
1639 drm_connector_attach_property(&radeon_connector->base,
1640 rdev->mode_info.load_detect_property,
1643 connector->interlace_allowed = true;
1644 if (connector_type == DRM_MODE_CONNECTOR_DVII)
1645 connector->doublescan_allowed = true;
1647 connector->doublescan_allowed = false;
1649 case DRM_MODE_CONNECTOR_HDMIA:
1650 case DRM_MODE_CONNECTOR_HDMIB:
1651 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1652 if (!radeon_dig_connector)
1654 radeon_dig_connector->igp_lane_info = igp_lane_info;
1655 radeon_connector->con_priv = radeon_dig_connector;
1656 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
1657 drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
1658 if (i2c_bus->valid) {
1659 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1660 if (!radeon_connector->ddc_bus)
1661 DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1663 drm_connector_attach_property(&radeon_connector->base,
1664 rdev->mode_info.coherent_mode_property,
1666 if (ASIC_IS_AVIVO(rdev)) {
1667 drm_connector_attach_property(&radeon_connector->base,
1668 rdev->mode_info.underscan_property,
1670 drm_connector_attach_property(&radeon_connector->base,
1671 rdev->mode_info.underscan_hborder_property,
1673 drm_connector_attach_property(&radeon_connector->base,
1674 rdev->mode_info.underscan_vborder_property,
1677 subpixel_order = SubPixelHorizontalRGB;
1678 connector->interlace_allowed = true;
1679 if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1680 connector->doublescan_allowed = true;
1682 connector->doublescan_allowed = false;
1684 case DRM_MODE_CONNECTOR_DisplayPort:
1685 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1686 if (!radeon_dig_connector)
1688 radeon_dig_connector->igp_lane_info = igp_lane_info;
1689 radeon_connector->con_priv = radeon_dig_connector;
1690 drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
1691 drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
1692 if (i2c_bus->valid) {
1693 /* add DP i2c bus */
1694 radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, i2c_bus, "DP-auxch");
1695 if (!radeon_dig_connector->dp_i2c_bus)
1696 DRM_ERROR("DP: Failed to assign dp ddc bus! Check dmesg for i2c errors.\n");
1697 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1698 if (!radeon_connector->ddc_bus)
1699 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1701 subpixel_order = SubPixelHorizontalRGB;
1702 drm_connector_attach_property(&radeon_connector->base,
1703 rdev->mode_info.coherent_mode_property,
1705 if (ASIC_IS_AVIVO(rdev)) {
1706 drm_connector_attach_property(&radeon_connector->base,
1707 rdev->mode_info.underscan_property,
1709 drm_connector_attach_property(&radeon_connector->base,
1710 rdev->mode_info.underscan_hborder_property,
1712 drm_connector_attach_property(&radeon_connector->base,
1713 rdev->mode_info.underscan_vborder_property,
1716 connector->interlace_allowed = true;
1717 /* in theory with a DP to VGA converter... */
1718 connector->doublescan_allowed = false;
1720 case DRM_MODE_CONNECTOR_eDP:
1721 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1722 if (!radeon_dig_connector)
1724 radeon_dig_connector->igp_lane_info = igp_lane_info;
1725 radeon_connector->con_priv = radeon_dig_connector;
1726 drm_connector_init(dev, &radeon_connector->base, &radeon_edp_connector_funcs, connector_type);
1727 drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
1728 if (i2c_bus->valid) {
1729 /* add DP i2c bus */
1730 radeon_dig_connector->dp_i2c_bus = radeon_i2c_create_dp(dev, i2c_bus, "eDP-auxch");
1731 if (!radeon_dig_connector->dp_i2c_bus)
1732 DRM_ERROR("DP: Failed to assign dp ddc bus! Check dmesg for i2c errors.\n");
1733 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1734 if (!radeon_connector->ddc_bus)
1735 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1737 drm_connector_attach_property(&radeon_connector->base,
1738 dev->mode_config.scaling_mode_property,
1739 DRM_MODE_SCALE_FULLSCREEN);
1740 subpixel_order = SubPixelHorizontalRGB;
1741 connector->interlace_allowed = false;
1742 connector->doublescan_allowed = false;
1744 case DRM_MODE_CONNECTOR_SVIDEO:
1745 case DRM_MODE_CONNECTOR_Composite:
1746 case DRM_MODE_CONNECTOR_9PinDIN:
1747 drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
1748 drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
1749 radeon_connector->dac_load_detect = true;
1750 drm_connector_attach_property(&radeon_connector->base,
1751 rdev->mode_info.load_detect_property,
1753 drm_connector_attach_property(&radeon_connector->base,
1754 rdev->mode_info.tv_std_property,
1755 radeon_atombios_get_tv_info(rdev));
1756 /* no HPD on analog connectors */
1757 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1758 connector->interlace_allowed = false;
1759 connector->doublescan_allowed = false;
1761 case DRM_MODE_CONNECTOR_LVDS:
1762 radeon_dig_connector = kzalloc(sizeof(struct radeon_connector_atom_dig), GFP_KERNEL);
1763 if (!radeon_dig_connector)
1765 radeon_dig_connector->igp_lane_info = igp_lane_info;
1766 radeon_connector->con_priv = radeon_dig_connector;
1767 drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
1768 drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
1769 if (i2c_bus->valid) {
1770 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1771 if (!radeon_connector->ddc_bus)
1772 DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1774 drm_connector_attach_property(&radeon_connector->base,
1775 dev->mode_config.scaling_mode_property,
1776 DRM_MODE_SCALE_FULLSCREEN);
1777 subpixel_order = SubPixelHorizontalRGB;
1778 connector->interlace_allowed = false;
1779 connector->doublescan_allowed = false;
1784 if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
1786 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1788 connector->polled = DRM_CONNECTOR_POLL_HPD;
1790 connector->display_info.subpixel_order = subpixel_order;
1791 drm_sysfs_connector_add(connector);
1795 drm_connector_cleanup(connector);
1800 radeon_add_legacy_connector(struct drm_device *dev,
1801 uint32_t connector_id,
1802 uint32_t supported_device,
1804 struct radeon_i2c_bus_rec *i2c_bus,
1805 uint16_t connector_object_id,
1806 struct radeon_hpd *hpd)
1808 struct radeon_device *rdev = dev->dev_private;
1809 struct drm_connector *connector;
1810 struct radeon_connector *radeon_connector;
1811 uint32_t subpixel_order = SubPixelNone;
1813 if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1816 /* if the user selected tv=0 don't try and add the connector */
1817 if (((connector_type == DRM_MODE_CONNECTOR_SVIDEO) ||
1818 (connector_type == DRM_MODE_CONNECTOR_Composite) ||
1819 (connector_type == DRM_MODE_CONNECTOR_9PinDIN)) &&
1823 /* see if we already added it */
1824 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1825 radeon_connector = to_radeon_connector(connector);
1826 if (radeon_connector->connector_id == connector_id) {
1827 radeon_connector->devices |= supported_device;
1832 radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
1833 if (!radeon_connector)
1836 connector = &radeon_connector->base;
1838 radeon_connector->connector_id = connector_id;
1839 radeon_connector->devices = supported_device;
1840 radeon_connector->connector_object_id = connector_object_id;
1841 radeon_connector->hpd = *hpd;
1843 switch (connector_type) {
1844 case DRM_MODE_CONNECTOR_VGA:
1845 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1846 drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1847 if (i2c_bus->valid) {
1848 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1849 if (!radeon_connector->ddc_bus)
1850 DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1852 radeon_connector->dac_load_detect = true;
1853 drm_connector_attach_property(&radeon_connector->base,
1854 rdev->mode_info.load_detect_property,
1856 /* no HPD on analog connectors */
1857 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1858 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1859 connector->interlace_allowed = true;
1860 connector->doublescan_allowed = true;
1862 case DRM_MODE_CONNECTOR_DVIA:
1863 drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type);
1864 drm_connector_helper_add(&radeon_connector->base, &radeon_vga_connector_helper_funcs);
1865 if (i2c_bus->valid) {
1866 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1867 if (!radeon_connector->ddc_bus)
1868 DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1870 radeon_connector->dac_load_detect = true;
1871 drm_connector_attach_property(&radeon_connector->base,
1872 rdev->mode_info.load_detect_property,
1874 /* no HPD on analog connectors */
1875 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1876 connector->interlace_allowed = true;
1877 connector->doublescan_allowed = true;
1879 case DRM_MODE_CONNECTOR_DVII:
1880 case DRM_MODE_CONNECTOR_DVID:
1881 drm_connector_init(dev, &radeon_connector->base, &radeon_dvi_connector_funcs, connector_type);
1882 drm_connector_helper_add(&radeon_connector->base, &radeon_dvi_connector_helper_funcs);
1883 if (i2c_bus->valid) {
1884 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1885 if (!radeon_connector->ddc_bus)
1886 DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1888 if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1889 radeon_connector->dac_load_detect = true;
1890 drm_connector_attach_property(&radeon_connector->base,
1891 rdev->mode_info.load_detect_property,
1894 subpixel_order = SubPixelHorizontalRGB;
1895 connector->interlace_allowed = true;
1896 if (connector_type == DRM_MODE_CONNECTOR_DVII)
1897 connector->doublescan_allowed = true;
1899 connector->doublescan_allowed = false;
1901 case DRM_MODE_CONNECTOR_SVIDEO:
1902 case DRM_MODE_CONNECTOR_Composite:
1903 case DRM_MODE_CONNECTOR_9PinDIN:
1904 drm_connector_init(dev, &radeon_connector->base, &radeon_tv_connector_funcs, connector_type);
1905 drm_connector_helper_add(&radeon_connector->base, &radeon_tv_connector_helper_funcs);
1906 radeon_connector->dac_load_detect = true;
1907 /* RS400,RC410,RS480 chipset seems to report a lot
1908 * of false positive on load detect, we haven't yet
1909 * found a way to make load detect reliable on those
1910 * chipset, thus just disable it for TV.
1912 if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480)
1913 radeon_connector->dac_load_detect = false;
1914 drm_connector_attach_property(&radeon_connector->base,
1915 rdev->mode_info.load_detect_property,
1916 radeon_connector->dac_load_detect);
1917 drm_connector_attach_property(&radeon_connector->base,
1918 rdev->mode_info.tv_std_property,
1919 radeon_combios_get_tv_info(rdev));
1920 /* no HPD on analog connectors */
1921 radeon_connector->hpd.hpd = RADEON_HPD_NONE;
1922 connector->interlace_allowed = false;
1923 connector->doublescan_allowed = false;
1925 case DRM_MODE_CONNECTOR_LVDS:
1926 drm_connector_init(dev, &radeon_connector->base, &radeon_lvds_connector_funcs, connector_type);
1927 drm_connector_helper_add(&radeon_connector->base, &radeon_lvds_connector_helper_funcs);
1928 if (i2c_bus->valid) {
1929 radeon_connector->ddc_bus = radeon_i2c_lookup(rdev, i2c_bus);
1930 if (!radeon_connector->ddc_bus)
1931 DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1933 drm_connector_attach_property(&radeon_connector->base,
1934 dev->mode_config.scaling_mode_property,
1935 DRM_MODE_SCALE_FULLSCREEN);
1936 subpixel_order = SubPixelHorizontalRGB;
1937 connector->interlace_allowed = false;
1938 connector->doublescan_allowed = false;
1942 if (radeon_connector->hpd.hpd == RADEON_HPD_NONE) {
1944 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1946 connector->polled = DRM_CONNECTOR_POLL_HPD;
1947 connector->display_info.subpixel_order = subpixel_order;
1948 drm_sysfs_connector_add(connector);
1949 if (connector_type == DRM_MODE_CONNECTOR_LVDS) {
1950 struct drm_encoder *drm_encoder;
1952 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
1953 struct radeon_encoder *radeon_encoder;
1955 radeon_encoder = to_radeon_encoder(drm_encoder);
1956 if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_LVDS)
1957 radeon_legacy_backlight_init(radeon_encoder, connector);