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0e32b39c DA |
1 | /* |
2 | * Copyright © 2008 Intel Corporation | |
3 | * 2014 Red Hat Inc. | |
4 | * | |
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: | |
11 | * | |
12 | * The above copyright notice and this permission notice (including the next | |
13 | * paragraph) shall be included in all copies or substantial portions of the | |
14 | * Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
22 | * IN THE SOFTWARE. | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <drm/drmP.h> | |
27 | #include "i915_drv.h" | |
28 | #include "intel_drv.h" | |
c6f95f27 | 29 | #include <drm/drm_atomic_helper.h> |
0e32b39c DA |
30 | #include <drm/drm_crtc_helper.h> |
31 | #include <drm/drm_edid.h> | |
32 | ||
33 | static bool intel_dp_mst_compute_config(struct intel_encoder *encoder, | |
5cec258b | 34 | struct intel_crtc_state *pipe_config) |
0e32b39c DA |
35 | { |
36 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
37 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
38 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
39 | struct drm_device *dev = encoder->base.dev; | |
40 | int bpp; | |
41 | int lane_count, slots; | |
2d112de7 | 42 | struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode; |
0e32b39c DA |
43 | struct intel_connector *found = NULL, *intel_connector; |
44 | int mst_pbn; | |
45 | ||
46 | pipe_config->dp_encoder_is_mst = true; | |
47 | pipe_config->has_pch_encoder = false; | |
48 | pipe_config->has_dp_encoder = true; | |
49 | bpp = 24; | |
50 | /* | |
51 | * for MST we always configure max link bw - the spec doesn't | |
52 | * seem to suggest we should do otherwise. | |
53 | */ | |
54 | lane_count = drm_dp_max_lane_count(intel_dp->dpcd); | |
55 | intel_dp->link_bw = intel_dp_max_link_bw(intel_dp); | |
56 | intel_dp->lane_count = lane_count; | |
57 | ||
58 | pipe_config->pipe_bpp = 24; | |
59 | pipe_config->port_clock = drm_dp_bw_code_to_link_rate(intel_dp->link_bw); | |
60 | ||
61 | list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) { | |
62 | if (intel_connector->new_encoder == encoder) { | |
63 | found = intel_connector; | |
64 | break; | |
65 | } | |
66 | } | |
67 | ||
68 | if (!found) { | |
69 | DRM_ERROR("can't find connector\n"); | |
70 | return false; | |
71 | } | |
72 | ||
73 | mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->clock, bpp); | |
74 | ||
75 | pipe_config->pbn = mst_pbn; | |
76 | slots = drm_dp_find_vcpi_slots(&intel_dp->mst_mgr, mst_pbn); | |
77 | ||
78 | intel_link_compute_m_n(bpp, lane_count, | |
79 | adjusted_mode->crtc_clock, | |
80 | pipe_config->port_clock, | |
81 | &pipe_config->dp_m_n); | |
82 | ||
83 | pipe_config->dp_m_n.tu = slots; | |
84 | return true; | |
85 | ||
86 | } | |
87 | ||
88 | static void intel_mst_disable_dp(struct intel_encoder *encoder) | |
89 | { | |
90 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
91 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
92 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
93 | int ret; | |
94 | ||
95 | DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); | |
96 | ||
97 | drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, intel_mst->port); | |
98 | ||
99 | ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); | |
100 | if (ret) { | |
101 | DRM_ERROR("failed to update payload %d\n", ret); | |
102 | } | |
103 | } | |
104 | ||
105 | static void intel_mst_post_disable_dp(struct intel_encoder *encoder) | |
106 | { | |
107 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
108 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
109 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
110 | ||
111 | DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); | |
112 | ||
113 | /* this can fail */ | |
114 | drm_dp_check_act_status(&intel_dp->mst_mgr); | |
115 | /* and this can also fail */ | |
116 | drm_dp_update_payload_part2(&intel_dp->mst_mgr); | |
117 | ||
118 | drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, intel_mst->port); | |
119 | ||
120 | intel_dp->active_mst_links--; | |
121 | intel_mst->port = NULL; | |
122 | if (intel_dp->active_mst_links == 0) { | |
123 | intel_dig_port->base.post_disable(&intel_dig_port->base); | |
124 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); | |
125 | } | |
126 | } | |
127 | ||
128 | static void intel_mst_pre_enable_dp(struct intel_encoder *encoder) | |
129 | { | |
130 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
131 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
132 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
133 | struct drm_device *dev = encoder->base.dev; | |
134 | struct drm_i915_private *dev_priv = dev->dev_private; | |
135 | enum port port = intel_dig_port->port; | |
136 | int ret; | |
137 | uint32_t temp; | |
138 | struct intel_connector *found = NULL, *intel_connector; | |
139 | int slots; | |
140 | struct drm_crtc *crtc = encoder->base.crtc; | |
141 | struct intel_crtc *intel_crtc = to_intel_crtc(crtc); | |
142 | ||
143 | list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) { | |
144 | if (intel_connector->new_encoder == encoder) { | |
145 | found = intel_connector; | |
146 | break; | |
147 | } | |
148 | } | |
149 | ||
150 | if (!found) { | |
151 | DRM_ERROR("can't find connector\n"); | |
152 | return; | |
153 | } | |
154 | ||
155 | DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); | |
156 | intel_mst->port = found->port; | |
157 | ||
158 | if (intel_dp->active_mst_links == 0) { | |
159 | enum port port = intel_ddi_get_encoder_port(encoder); | |
160 | ||
6e3c9717 ACO |
161 | I915_WRITE(PORT_CLK_SEL(port), |
162 | intel_crtc->config->ddi_pll_sel); | |
0e32b39c DA |
163 | |
164 | intel_ddi_init_dp_buf_reg(&intel_dig_port->base); | |
165 | ||
166 | intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); | |
167 | ||
168 | ||
169 | intel_dp_start_link_train(intel_dp); | |
170 | intel_dp_complete_link_train(intel_dp); | |
171 | intel_dp_stop_link_train(intel_dp); | |
172 | } | |
173 | ||
174 | ret = drm_dp_mst_allocate_vcpi(&intel_dp->mst_mgr, | |
6e3c9717 ACO |
175 | intel_mst->port, |
176 | intel_crtc->config->pbn, &slots); | |
0e32b39c DA |
177 | if (ret == false) { |
178 | DRM_ERROR("failed to allocate vcpi\n"); | |
179 | return; | |
180 | } | |
181 | ||
182 | ||
183 | intel_dp->active_mst_links++; | |
184 | temp = I915_READ(DP_TP_STATUS(port)); | |
185 | I915_WRITE(DP_TP_STATUS(port), temp); | |
186 | ||
187 | ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); | |
188 | } | |
189 | ||
190 | static void intel_mst_enable_dp(struct intel_encoder *encoder) | |
191 | { | |
192 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
193 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
194 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
195 | struct drm_device *dev = intel_dig_port->base.base.dev; | |
196 | struct drm_i915_private *dev_priv = dev->dev_private; | |
197 | enum port port = intel_dig_port->port; | |
198 | int ret; | |
199 | ||
200 | DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); | |
201 | ||
202 | if (wait_for((I915_READ(DP_TP_STATUS(port)) & DP_TP_STATUS_ACT_SENT), | |
203 | 1)) | |
204 | DRM_ERROR("Timed out waiting for ACT sent\n"); | |
205 | ||
206 | ret = drm_dp_check_act_status(&intel_dp->mst_mgr); | |
207 | ||
208 | ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr); | |
209 | } | |
210 | ||
211 | static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder, | |
212 | enum pipe *pipe) | |
213 | { | |
214 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
215 | *pipe = intel_mst->pipe; | |
216 | if (intel_mst->port) | |
217 | return true; | |
218 | return false; | |
219 | } | |
220 | ||
221 | static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder, | |
5cec258b | 222 | struct intel_crtc_state *pipe_config) |
0e32b39c DA |
223 | { |
224 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); | |
225 | struct intel_digital_port *intel_dig_port = intel_mst->primary; | |
226 | struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc); | |
227 | struct drm_device *dev = encoder->base.dev; | |
228 | struct drm_i915_private *dev_priv = dev->dev_private; | |
0cb09a97 | 229 | enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; |
0e32b39c DA |
230 | u32 temp, flags = 0; |
231 | ||
232 | pipe_config->has_dp_encoder = true; | |
233 | ||
234 | temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder)); | |
235 | if (temp & TRANS_DDI_PHSYNC) | |
236 | flags |= DRM_MODE_FLAG_PHSYNC; | |
237 | else | |
238 | flags |= DRM_MODE_FLAG_NHSYNC; | |
239 | if (temp & TRANS_DDI_PVSYNC) | |
240 | flags |= DRM_MODE_FLAG_PVSYNC; | |
241 | else | |
242 | flags |= DRM_MODE_FLAG_NVSYNC; | |
243 | ||
244 | switch (temp & TRANS_DDI_BPC_MASK) { | |
245 | case TRANS_DDI_BPC_6: | |
246 | pipe_config->pipe_bpp = 18; | |
247 | break; | |
248 | case TRANS_DDI_BPC_8: | |
249 | pipe_config->pipe_bpp = 24; | |
250 | break; | |
251 | case TRANS_DDI_BPC_10: | |
252 | pipe_config->pipe_bpp = 30; | |
253 | break; | |
254 | case TRANS_DDI_BPC_12: | |
255 | pipe_config->pipe_bpp = 36; | |
256 | break; | |
257 | default: | |
258 | break; | |
259 | } | |
2d112de7 | 260 | pipe_config->base.adjusted_mode.flags |= flags; |
0e32b39c DA |
261 | intel_dp_get_m_n(crtc, pipe_config); |
262 | ||
263 | intel_ddi_clock_get(&intel_dig_port->base, pipe_config); | |
264 | } | |
265 | ||
266 | static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector) | |
267 | { | |
268 | struct intel_connector *intel_connector = to_intel_connector(connector); | |
269 | struct intel_dp *intel_dp = intel_connector->mst_port; | |
270 | struct edid *edid; | |
271 | int ret; | |
272 | ||
273 | edid = drm_dp_mst_get_edid(connector, &intel_dp->mst_mgr, intel_connector->port); | |
274 | if (!edid) | |
275 | return 0; | |
276 | ||
277 | ret = intel_connector_update_modes(connector, edid); | |
278 | kfree(edid); | |
279 | ||
280 | return ret; | |
281 | } | |
282 | ||
283 | static enum drm_connector_status | |
f7f3d48a | 284 | intel_dp_mst_detect(struct drm_connector *connector, bool force) |
0e32b39c DA |
285 | { |
286 | struct intel_connector *intel_connector = to_intel_connector(connector); | |
287 | struct intel_dp *intel_dp = intel_connector->mst_port; | |
288 | ||
c6a0aed4 | 289 | return drm_dp_mst_detect_port(connector, &intel_dp->mst_mgr, intel_connector->port); |
0e32b39c DA |
290 | } |
291 | ||
0e32b39c DA |
292 | static int |
293 | intel_dp_mst_set_property(struct drm_connector *connector, | |
294 | struct drm_property *property, | |
295 | uint64_t val) | |
296 | { | |
297 | return 0; | |
298 | } | |
299 | ||
300 | static void | |
301 | intel_dp_mst_connector_destroy(struct drm_connector *connector) | |
302 | { | |
303 | struct intel_connector *intel_connector = to_intel_connector(connector); | |
304 | ||
305 | if (!IS_ERR_OR_NULL(intel_connector->edid)) | |
306 | kfree(intel_connector->edid); | |
307 | ||
308 | drm_connector_cleanup(connector); | |
309 | kfree(connector); | |
310 | } | |
311 | ||
312 | static const struct drm_connector_funcs intel_dp_mst_connector_funcs = { | |
313 | .dpms = intel_connector_dpms, | |
314 | .detect = intel_dp_mst_detect, | |
315 | .fill_modes = drm_helper_probe_single_connector_modes, | |
316 | .set_property = intel_dp_mst_set_property, | |
2545e4a6 | 317 | .atomic_get_property = intel_connector_atomic_get_property, |
0e32b39c | 318 | .destroy = intel_dp_mst_connector_destroy, |
c6f95f27 | 319 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, |
0e32b39c DA |
320 | }; |
321 | ||
322 | static int intel_dp_mst_get_modes(struct drm_connector *connector) | |
323 | { | |
324 | return intel_dp_mst_get_ddc_modes(connector); | |
325 | } | |
326 | ||
327 | static enum drm_mode_status | |
328 | intel_dp_mst_mode_valid(struct drm_connector *connector, | |
329 | struct drm_display_mode *mode) | |
330 | { | |
331 | /* TODO - validate mode against available PBN for link */ | |
332 | if (mode->clock < 10000) | |
333 | return MODE_CLOCK_LOW; | |
334 | ||
335 | if (mode->flags & DRM_MODE_FLAG_DBLCLK) | |
336 | return MODE_H_ILLEGAL; | |
337 | ||
338 | return MODE_OK; | |
339 | } | |
340 | ||
341 | static struct drm_encoder *intel_mst_best_encoder(struct drm_connector *connector) | |
342 | { | |
343 | struct intel_connector *intel_connector = to_intel_connector(connector); | |
344 | struct intel_dp *intel_dp = intel_connector->mst_port; | |
345 | return &intel_dp->mst_encoders[0]->base.base; | |
346 | } | |
347 | ||
348 | static const struct drm_connector_helper_funcs intel_dp_mst_connector_helper_funcs = { | |
349 | .get_modes = intel_dp_mst_get_modes, | |
350 | .mode_valid = intel_dp_mst_mode_valid, | |
351 | .best_encoder = intel_mst_best_encoder, | |
352 | }; | |
353 | ||
354 | static void intel_dp_mst_encoder_destroy(struct drm_encoder *encoder) | |
355 | { | |
356 | struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder); | |
357 | ||
358 | drm_encoder_cleanup(encoder); | |
359 | kfree(intel_mst); | |
360 | } | |
361 | ||
362 | static const struct drm_encoder_funcs intel_dp_mst_enc_funcs = { | |
363 | .destroy = intel_dp_mst_encoder_destroy, | |
364 | }; | |
365 | ||
366 | static bool intel_dp_mst_get_hw_state(struct intel_connector *connector) | |
367 | { | |
368 | if (connector->encoder) { | |
369 | enum pipe pipe; | |
370 | if (!connector->encoder->get_hw_state(connector->encoder, &pipe)) | |
371 | return false; | |
372 | return true; | |
373 | } | |
374 | return false; | |
375 | } | |
376 | ||
7296c849 CW |
377 | static void intel_connector_add_to_fbdev(struct intel_connector *connector) |
378 | { | |
379 | #ifdef CONFIG_DRM_I915_FBDEV | |
380 | struct drm_i915_private *dev_priv = to_i915(connector->base.dev); | |
381 | drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper, &connector->base); | |
382 | #endif | |
383 | } | |
384 | ||
385 | static void intel_connector_remove_from_fbdev(struct intel_connector *connector) | |
386 | { | |
387 | #ifdef CONFIG_DRM_I915_FBDEV | |
388 | struct drm_i915_private *dev_priv = to_i915(connector->base.dev); | |
389 | drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper, &connector->base); | |
390 | #endif | |
391 | } | |
392 | ||
12e6cecd | 393 | static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop) |
0e32b39c DA |
394 | { |
395 | struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr); | |
396 | struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); | |
397 | struct drm_device *dev = intel_dig_port->base.base.dev; | |
0e32b39c DA |
398 | struct intel_connector *intel_connector; |
399 | struct drm_connector *connector; | |
400 | int i; | |
401 | ||
402 | intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL); | |
403 | if (!intel_connector) | |
404 | return NULL; | |
405 | ||
406 | connector = &intel_connector->base; | |
407 | drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs, DRM_MODE_CONNECTOR_DisplayPort); | |
408 | drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs); | |
409 | ||
410 | intel_connector->unregister = intel_connector_unregister; | |
411 | intel_connector->get_hw_state = intel_dp_mst_get_hw_state; | |
412 | intel_connector->mst_port = intel_dp; | |
413 | intel_connector->port = port; | |
414 | ||
415 | for (i = PIPE_A; i <= PIPE_C; i++) { | |
416 | drm_mode_connector_attach_encoder(&intel_connector->base, | |
417 | &intel_dp->mst_encoders[i]->base.base); | |
418 | } | |
419 | intel_dp_add_properties(intel_dp, connector); | |
420 | ||
421 | drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0); | |
6f134d7b DA |
422 | drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0); |
423 | ||
0e32b39c DA |
424 | drm_mode_connector_set_path_property(connector, pathprop); |
425 | drm_reinit_primary_mode_group(dev); | |
426 | mutex_lock(&dev->mode_config.mutex); | |
7296c849 | 427 | intel_connector_add_to_fbdev(intel_connector); |
0e32b39c DA |
428 | mutex_unlock(&dev->mode_config.mutex); |
429 | drm_connector_register(&intel_connector->base); | |
430 | return connector; | |
431 | } | |
432 | ||
433 | static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr, | |
434 | struct drm_connector *connector) | |
435 | { | |
436 | struct intel_connector *intel_connector = to_intel_connector(connector); | |
437 | struct drm_device *dev = connector->dev; | |
0e32b39c DA |
438 | /* need to nuke the connector */ |
439 | mutex_lock(&dev->mode_config.mutex); | |
440 | intel_connector_dpms(connector, DRM_MODE_DPMS_OFF); | |
441 | mutex_unlock(&dev->mode_config.mutex); | |
442 | ||
443 | intel_connector->unregister(intel_connector); | |
444 | ||
445 | mutex_lock(&dev->mode_config.mutex); | |
7296c849 | 446 | intel_connector_remove_from_fbdev(intel_connector); |
0e32b39c DA |
447 | drm_connector_cleanup(connector); |
448 | mutex_unlock(&dev->mode_config.mutex); | |
449 | ||
450 | drm_reinit_primary_mode_group(dev); | |
451 | ||
452 | kfree(intel_connector); | |
453 | DRM_DEBUG_KMS("\n"); | |
454 | } | |
455 | ||
456 | static void intel_dp_mst_hotplug(struct drm_dp_mst_topology_mgr *mgr) | |
457 | { | |
458 | struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr); | |
459 | struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); | |
460 | struct drm_device *dev = intel_dig_port->base.base.dev; | |
461 | ||
462 | drm_kms_helper_hotplug_event(dev); | |
463 | } | |
464 | ||
465 | static struct drm_dp_mst_topology_cbs mst_cbs = { | |
466 | .add_connector = intel_dp_add_mst_connector, | |
467 | .destroy_connector = intel_dp_destroy_mst_connector, | |
468 | .hotplug = intel_dp_mst_hotplug, | |
469 | }; | |
470 | ||
471 | static struct intel_dp_mst_encoder * | |
472 | intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum pipe pipe) | |
473 | { | |
474 | struct intel_dp_mst_encoder *intel_mst; | |
475 | struct intel_encoder *intel_encoder; | |
476 | struct drm_device *dev = intel_dig_port->base.base.dev; | |
477 | ||
478 | intel_mst = kzalloc(sizeof(*intel_mst), GFP_KERNEL); | |
479 | ||
480 | if (!intel_mst) | |
481 | return NULL; | |
482 | ||
483 | intel_mst->pipe = pipe; | |
484 | intel_encoder = &intel_mst->base; | |
485 | intel_mst->primary = intel_dig_port; | |
486 | ||
487 | drm_encoder_init(dev, &intel_encoder->base, &intel_dp_mst_enc_funcs, | |
488 | DRM_MODE_ENCODER_DPMST); | |
489 | ||
490 | intel_encoder->type = INTEL_OUTPUT_DP_MST; | |
491 | intel_encoder->crtc_mask = 0x7; | |
492 | intel_encoder->cloneable = 0; | |
493 | ||
494 | intel_encoder->compute_config = intel_dp_mst_compute_config; | |
495 | intel_encoder->disable = intel_mst_disable_dp; | |
496 | intel_encoder->post_disable = intel_mst_post_disable_dp; | |
497 | intel_encoder->pre_enable = intel_mst_pre_enable_dp; | |
498 | intel_encoder->enable = intel_mst_enable_dp; | |
499 | intel_encoder->get_hw_state = intel_dp_mst_enc_get_hw_state; | |
500 | intel_encoder->get_config = intel_dp_mst_enc_get_config; | |
501 | ||
502 | return intel_mst; | |
503 | ||
504 | } | |
505 | ||
506 | static bool | |
507 | intel_dp_create_fake_mst_encoders(struct intel_digital_port *intel_dig_port) | |
508 | { | |
509 | int i; | |
510 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
511 | ||
512 | for (i = PIPE_A; i <= PIPE_C; i++) | |
513 | intel_dp->mst_encoders[i] = intel_dp_create_fake_mst_encoder(intel_dig_port, i); | |
514 | return true; | |
515 | } | |
516 | ||
517 | int | |
518 | intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_base_id) | |
519 | { | |
520 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
521 | struct drm_device *dev = intel_dig_port->base.base.dev; | |
522 | int ret; | |
523 | ||
524 | intel_dp->can_mst = true; | |
525 | intel_dp->mst_mgr.cbs = &mst_cbs; | |
526 | ||
527 | /* create encoders */ | |
528 | intel_dp_create_fake_mst_encoders(intel_dig_port); | |
529 | ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, dev->dev, &intel_dp->aux, 16, 3, conn_base_id); | |
530 | if (ret) { | |
531 | intel_dp->can_mst = false; | |
532 | return ret; | |
533 | } | |
534 | return 0; | |
535 | } | |
536 | ||
537 | void | |
538 | intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port) | |
539 | { | |
540 | struct intel_dp *intel_dp = &intel_dig_port->dp; | |
541 | ||
542 | if (!intel_dp->can_mst) | |
543 | return; | |
544 | ||
545 | drm_dp_mst_topology_mgr_destroy(&intel_dp->mst_mgr); | |
546 | /* encoders will get killed by normal cleanup */ | |
547 | } |