dsi_drm.c 37 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
  4. */
  5. #include <drm/drm_atomic_helper.h>
  6. #include <drm/drm_atomic.h>
  7. #include "msm_kms.h"
  8. #include "sde_connector.h"
  9. #include "dsi_drm.h"
  10. #include "sde_trace.h"
  11. #include "sde_dbg.h"
  12. #include "msm_drv.h"
  13. #include "sde_encoder.h"
  14. #define to_dsi_bridge(x) container_of((x), struct dsi_bridge, base)
  15. #define to_dsi_state(x) container_of((x), struct dsi_connector_state, base)
  16. #define DEFAULT_PANEL_JITTER_NUMERATOR 2
  17. #define DEFAULT_PANEL_JITTER_DENOMINATOR 1
  18. #define DEFAULT_PANEL_JITTER_ARRAY_SIZE 2
  19. #define DEFAULT_PANEL_PREFILL_LINES 25
  20. static struct dsi_display_mode_priv_info default_priv_info = {
  21. .panel_jitter_numer = DEFAULT_PANEL_JITTER_NUMERATOR,
  22. .panel_jitter_denom = DEFAULT_PANEL_JITTER_DENOMINATOR,
  23. .panel_prefill_lines = DEFAULT_PANEL_PREFILL_LINES,
  24. .dsc_enabled = false,
  25. };
  26. static void convert_to_dsi_mode(const struct drm_display_mode *drm_mode,
  27. struct dsi_display_mode *dsi_mode)
  28. {
  29. memset(dsi_mode, 0, sizeof(*dsi_mode));
  30. dsi_mode->timing.h_active = drm_mode->hdisplay;
  31. dsi_mode->timing.h_back_porch = drm_mode->htotal - drm_mode->hsync_end;
  32. dsi_mode->timing.h_sync_width = drm_mode->htotal -
  33. (drm_mode->hsync_start + dsi_mode->timing.h_back_porch);
  34. dsi_mode->timing.h_front_porch = drm_mode->hsync_start -
  35. drm_mode->hdisplay;
  36. dsi_mode->timing.h_skew = drm_mode->hskew;
  37. dsi_mode->timing.v_active = drm_mode->vdisplay;
  38. dsi_mode->timing.v_back_porch = drm_mode->vtotal - drm_mode->vsync_end;
  39. dsi_mode->timing.v_sync_width = drm_mode->vtotal -
  40. (drm_mode->vsync_start + dsi_mode->timing.v_back_porch);
  41. dsi_mode->timing.v_front_porch = drm_mode->vsync_start -
  42. drm_mode->vdisplay;
  43. dsi_mode->timing.refresh_rate = drm_mode->vrefresh;
  44. dsi_mode->pixel_clk_khz = drm_mode->clock;
  45. dsi_mode->timing.h_sync_polarity =
  46. !!(drm_mode->flags & DRM_MODE_FLAG_PHSYNC);
  47. dsi_mode->timing.v_sync_polarity =
  48. !!(drm_mode->flags & DRM_MODE_FLAG_PVSYNC);
  49. if (drm_mode->flags & DRM_MODE_FLAG_VID_MODE_PANEL)
  50. dsi_mode->panel_mode = DSI_OP_VIDEO_MODE;
  51. if (drm_mode->flags & DRM_MODE_FLAG_CMD_MODE_PANEL)
  52. dsi_mode->panel_mode = DSI_OP_CMD_MODE;
  53. }
  54. static void msm_parse_mode_priv_info(const struct msm_display_mode *msm_mode,
  55. struct dsi_display_mode *dsi_mode)
  56. {
  57. dsi_mode->priv_info =
  58. (struct dsi_display_mode_priv_info *)msm_mode->private;
  59. if (dsi_mode->priv_info) {
  60. dsi_mode->timing.dsc_enabled = dsi_mode->priv_info->dsc_enabled;
  61. dsi_mode->timing.dsc = &dsi_mode->priv_info->dsc;
  62. dsi_mode->timing.vdc_enabled = dsi_mode->priv_info->vdc_enabled;
  63. dsi_mode->timing.vdc = &dsi_mode->priv_info->vdc;
  64. dsi_mode->timing.pclk_scale = dsi_mode->priv_info->pclk_scale;
  65. }
  66. if (msm_is_mode_seamless(msm_mode))
  67. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_SEAMLESS;
  68. if (msm_is_mode_dynamic_fps(msm_mode))
  69. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_DFPS;
  70. if (msm_needs_vblank_pre_modeset(msm_mode))
  71. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_VBLANK_PRE_MODESET;
  72. if (msm_is_mode_seamless_dms(msm_mode))
  73. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_DMS;
  74. if (msm_is_mode_seamless_vrr(msm_mode))
  75. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_VRR;
  76. if (msm_is_mode_seamless_poms(msm_mode))
  77. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_POMS;
  78. if (msm_is_mode_seamless_dyn_clk(msm_mode))
  79. dsi_mode->dsi_mode_flags |= DSI_MODE_FLAG_DYN_CLK;
  80. }
  81. void dsi_convert_to_drm_mode(const struct dsi_display_mode *dsi_mode,
  82. struct drm_display_mode *drm_mode)
  83. {
  84. bool video_mode = (dsi_mode->panel_mode == DSI_OP_VIDEO_MODE);
  85. memset(drm_mode, 0, sizeof(*drm_mode));
  86. drm_mode->hdisplay = dsi_mode->timing.h_active;
  87. drm_mode->hsync_start = drm_mode->hdisplay +
  88. dsi_mode->timing.h_front_porch;
  89. drm_mode->hsync_end = drm_mode->hsync_start +
  90. dsi_mode->timing.h_sync_width;
  91. drm_mode->htotal = drm_mode->hsync_end + dsi_mode->timing.h_back_porch;
  92. drm_mode->hskew = dsi_mode->timing.h_skew;
  93. drm_mode->vdisplay = dsi_mode->timing.v_active;
  94. drm_mode->vsync_start = drm_mode->vdisplay +
  95. dsi_mode->timing.v_front_porch;
  96. drm_mode->vsync_end = drm_mode->vsync_start +
  97. dsi_mode->timing.v_sync_width;
  98. drm_mode->vtotal = drm_mode->vsync_end + dsi_mode->timing.v_back_porch;
  99. drm_mode->vrefresh = dsi_mode->timing.refresh_rate;
  100. drm_mode->clock = dsi_mode->pixel_clk_khz;
  101. if (dsi_mode->timing.h_sync_polarity)
  102. drm_mode->flags |= DRM_MODE_FLAG_PHSYNC;
  103. if (dsi_mode->timing.v_sync_polarity)
  104. drm_mode->flags |= DRM_MODE_FLAG_PVSYNC;
  105. if (dsi_mode->panel_mode == DSI_OP_VIDEO_MODE)
  106. drm_mode->flags |= DRM_MODE_FLAG_VID_MODE_PANEL;
  107. if (dsi_mode->panel_mode == DSI_OP_CMD_MODE)
  108. drm_mode->flags |= DRM_MODE_FLAG_CMD_MODE_PANEL;
  109. /* set mode name */
  110. snprintf(drm_mode->name, DRM_DISPLAY_MODE_LEN, "%dx%dx%dx%d%s",
  111. drm_mode->hdisplay, drm_mode->vdisplay,
  112. drm_mode->vrefresh, drm_mode->clock,
  113. video_mode ? "vid" : "cmd");
  114. }
  115. static void dsi_convert_to_msm_mode(const struct dsi_display_mode *dsi_mode,
  116. struct msm_display_mode *msm_mode)
  117. {
  118. msm_mode->private_flags = 0;
  119. msm_mode->private = (int *)dsi_mode->priv_info;
  120. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_SEAMLESS)
  121. msm_mode->private_flags |= DRM_MODE_FLAG_SEAMLESS;
  122. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_DFPS)
  123. msm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS;
  124. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_VBLANK_PRE_MODESET)
  125. msm_mode->private_flags |= MSM_MODE_FLAG_VBLANK_PRE_MODESET;
  126. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_DMS)
  127. msm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_DMS;
  128. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_VRR)
  129. msm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_VRR;
  130. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_POMS)
  131. msm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_POMS;
  132. if (dsi_mode->dsi_mode_flags & DSI_MODE_FLAG_DYN_CLK)
  133. msm_mode->private_flags |= MSM_MODE_FLAG_SEAMLESS_DYN_CLK;
  134. }
  135. static int dsi_bridge_attach(struct drm_bridge *bridge,
  136. enum drm_bridge_attach_flags flags)
  137. {
  138. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  139. if (!bridge) {
  140. DSI_ERR("Invalid params\n");
  141. return -EINVAL;
  142. }
  143. DSI_DEBUG("[%d] attached\n", c_bridge->id);
  144. return 0;
  145. }
  146. static void dsi_bridge_pre_enable(struct drm_bridge *bridge)
  147. {
  148. int rc = 0;
  149. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  150. if (!bridge) {
  151. DSI_ERR("Invalid params\n");
  152. return;
  153. }
  154. if (!c_bridge || !c_bridge->display || !c_bridge->display->panel) {
  155. DSI_ERR("Incorrect bridge details\n");
  156. return;
  157. }
  158. atomic_set(&c_bridge->display->panel->esd_recovery_pending, 0);
  159. /* By this point mode should have been validated through mode_fixup */
  160. rc = dsi_display_set_mode(c_bridge->display,
  161. &(c_bridge->dsi_mode), 0x0);
  162. if (rc) {
  163. DSI_ERR("[%d] failed to perform a mode set, rc=%d\n",
  164. c_bridge->id, rc);
  165. return;
  166. }
  167. if (c_bridge->dsi_mode.dsi_mode_flags &
  168. (DSI_MODE_FLAG_SEAMLESS | DSI_MODE_FLAG_VRR |
  169. DSI_MODE_FLAG_DYN_CLK)) {
  170. DSI_DEBUG("[%d] seamless pre-enable\n", c_bridge->id);
  171. return;
  172. }
  173. SDE_ATRACE_BEGIN("dsi_display_prepare");
  174. rc = dsi_display_prepare(c_bridge->display);
  175. if (rc) {
  176. DSI_ERR("[%d] DSI display prepare failed, rc=%d\n",
  177. c_bridge->id, rc);
  178. SDE_ATRACE_END("dsi_display_prepare");
  179. return;
  180. }
  181. SDE_ATRACE_END("dsi_display_prepare");
  182. SDE_ATRACE_BEGIN("dsi_display_enable");
  183. rc = dsi_display_enable(c_bridge->display);
  184. if (rc) {
  185. DSI_ERR("[%d] DSI display enable failed, rc=%d\n",
  186. c_bridge->id, rc);
  187. (void)dsi_display_unprepare(c_bridge->display);
  188. }
  189. SDE_ATRACE_END("dsi_display_enable");
  190. rc = dsi_display_splash_res_cleanup(c_bridge->display);
  191. if (rc)
  192. DSI_ERR("Continuous splash pipeline cleanup failed, rc=%d\n",
  193. rc);
  194. }
  195. static void dsi_bridge_enable(struct drm_bridge *bridge)
  196. {
  197. int rc = 0;
  198. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  199. struct dsi_display *display;
  200. if (!bridge) {
  201. DSI_ERR("Invalid params\n");
  202. return;
  203. }
  204. if (c_bridge->dsi_mode.dsi_mode_flags &
  205. (DSI_MODE_FLAG_SEAMLESS | DSI_MODE_FLAG_VRR |
  206. DSI_MODE_FLAG_DYN_CLK)) {
  207. DSI_DEBUG("[%d] seamless enable\n", c_bridge->id);
  208. return;
  209. }
  210. display = c_bridge->display;
  211. rc = dsi_display_post_enable(display);
  212. if (rc)
  213. DSI_ERR("[%d] DSI display post enabled failed, rc=%d\n",
  214. c_bridge->id, rc);
  215. if (display)
  216. display->enabled = true;
  217. if (display && display->drm_conn) {
  218. sde_connector_helper_bridge_enable(display->drm_conn);
  219. if (c_bridge->dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_POMS)
  220. sde_connector_schedule_status_work(display->drm_conn,
  221. true);
  222. }
  223. }
  224. static void dsi_bridge_disable(struct drm_bridge *bridge)
  225. {
  226. int rc = 0;
  227. struct dsi_display *display;
  228. struct sde_connector_state *conn_state;
  229. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  230. if (!bridge) {
  231. DSI_ERR("Invalid params\n");
  232. return;
  233. }
  234. display = c_bridge->display;
  235. if (display)
  236. display->enabled = false;
  237. if (display && display->drm_conn) {
  238. conn_state = to_sde_connector_state(display->drm_conn->state);
  239. if (!conn_state) {
  240. DSI_ERR("invalid params\n");
  241. return;
  242. }
  243. display->poms_pending = msm_is_mode_seamless_poms(
  244. &conn_state->msm_mode);
  245. sde_connector_helper_bridge_disable(display->drm_conn);
  246. }
  247. rc = dsi_display_pre_disable(c_bridge->display);
  248. if (rc) {
  249. DSI_ERR("[%d] DSI display pre disable failed, rc=%d\n",
  250. c_bridge->id, rc);
  251. }
  252. }
  253. static void dsi_bridge_post_disable(struct drm_bridge *bridge)
  254. {
  255. int rc = 0;
  256. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  257. if (!bridge) {
  258. DSI_ERR("Invalid params\n");
  259. return;
  260. }
  261. SDE_ATRACE_BEGIN("dsi_bridge_post_disable");
  262. SDE_ATRACE_BEGIN("dsi_display_disable");
  263. rc = dsi_display_disable(c_bridge->display);
  264. if (rc) {
  265. DSI_ERR("[%d] DSI display disable failed, rc=%d\n",
  266. c_bridge->id, rc);
  267. SDE_ATRACE_END("dsi_display_disable");
  268. return;
  269. }
  270. SDE_ATRACE_END("dsi_display_disable");
  271. rc = dsi_display_unprepare(c_bridge->display);
  272. if (rc) {
  273. DSI_ERR("[%d] DSI display unprepare failed, rc=%d\n",
  274. c_bridge->id, rc);
  275. SDE_ATRACE_END("dsi_bridge_post_disable");
  276. return;
  277. }
  278. SDE_ATRACE_END("dsi_bridge_post_disable");
  279. }
  280. static void dsi_bridge_mode_set(struct drm_bridge *bridge,
  281. const struct drm_display_mode *mode,
  282. const struct drm_display_mode *adjusted_mode)
  283. {
  284. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  285. struct drm_connector *conn;
  286. struct sde_connector_state *conn_state;
  287. if (!bridge || !mode || !adjusted_mode) {
  288. DSI_ERR("Invalid params\n");
  289. return;
  290. }
  291. memset(&(c_bridge->dsi_mode), 0x0, sizeof(struct dsi_display_mode));
  292. convert_to_dsi_mode(adjusted_mode, &(c_bridge->dsi_mode));
  293. conn = sde_encoder_get_connector(bridge->dev, bridge->encoder);
  294. if (!conn)
  295. return;
  296. conn_state = to_sde_connector_state(conn->state);
  297. if (!conn_state) {
  298. DSI_ERR("invalid connector state\n");
  299. return;
  300. }
  301. msm_parse_mode_priv_info(&conn_state->msm_mode,
  302. &(c_bridge->dsi_mode));
  303. /* restore bit_clk_rate also for dynamic clk use cases */
  304. c_bridge->dsi_mode.timing.clk_rate_hz =
  305. dsi_drm_find_bit_clk_rate(c_bridge->display, adjusted_mode);
  306. DSI_DEBUG("clk_rate: %llu\n", c_bridge->dsi_mode.timing.clk_rate_hz);
  307. }
  308. static bool dsi_bridge_mode_fixup(struct drm_bridge *bridge,
  309. const struct drm_display_mode *mode,
  310. struct drm_display_mode *adjusted_mode)
  311. {
  312. int rc = 0;
  313. struct dsi_bridge *c_bridge = to_dsi_bridge(bridge);
  314. struct dsi_display *display;
  315. struct dsi_display_mode dsi_mode, cur_dsi_mode, *panel_dsi_mode;
  316. struct drm_crtc_state *crtc_state;
  317. struct drm_connector_state *drm_conn_state;
  318. struct sde_connector_state *conn_state;
  319. crtc_state = container_of(mode, struct drm_crtc_state, mode);
  320. if (!bridge || !mode || !adjusted_mode) {
  321. DSI_ERR("invalid params\n");
  322. return false;
  323. }
  324. display = c_bridge->display;
  325. if (!display || !display->drm_conn || !display->drm_conn->state) {
  326. DSI_ERR("invalid params\n");
  327. return false;
  328. }
  329. drm_conn_state = drm_atomic_get_new_connector_state(crtc_state->state,
  330. display->drm_conn);
  331. conn_state = to_sde_connector_state(drm_conn_state);
  332. if (!conn_state) {
  333. DSI_ERR("invalid params\n");
  334. return false;
  335. }
  336. /*
  337. * if no timing defined in panel, it must be external mode
  338. * and we'll use empty priv info to populate the mode
  339. */
  340. if (display->panel && !display->panel->num_timing_nodes) {
  341. *adjusted_mode = *mode;
  342. conn_state->msm_mode.base = adjusted_mode;
  343. conn_state->msm_mode.private = (int *)&default_priv_info;
  344. conn_state->msm_mode.private_flags = 0;
  345. return true;
  346. }
  347. convert_to_dsi_mode(mode, &dsi_mode);
  348. /*
  349. * retrieve dsi mode from dsi driver's cache since not safe to take
  350. * the drm mode config mutex in all paths
  351. */
  352. rc = dsi_display_find_mode(display, &dsi_mode, &panel_dsi_mode);
  353. if (rc)
  354. return rc;
  355. /* propagate the private info to the adjusted_mode derived dsi mode */
  356. dsi_mode.priv_info = panel_dsi_mode->priv_info;
  357. dsi_mode.dsi_mode_flags = panel_dsi_mode->dsi_mode_flags;
  358. dsi_mode.timing.dsc_enabled = dsi_mode.priv_info->dsc_enabled;
  359. dsi_mode.timing.dsc = &dsi_mode.priv_info->dsc;
  360. rc = dsi_display_validate_mode(c_bridge->display, &dsi_mode,
  361. DSI_VALIDATE_FLAG_ALLOW_ADJUST);
  362. if (rc) {
  363. DSI_ERR("[%d] mode is not valid, rc=%d\n", c_bridge->id, rc);
  364. return false;
  365. }
  366. if (bridge->encoder && bridge->encoder->crtc &&
  367. crtc_state->crtc) {
  368. const struct drm_display_mode *cur_mode =
  369. &crtc_state->crtc->state->mode;
  370. convert_to_dsi_mode(cur_mode, &cur_dsi_mode);
  371. cur_dsi_mode.timing.dsc_enabled =
  372. dsi_mode.priv_info->dsc_enabled;
  373. cur_dsi_mode.timing.dsc = &dsi_mode.priv_info->dsc;
  374. rc = dsi_display_validate_mode_change(c_bridge->display,
  375. &cur_dsi_mode, &dsi_mode);
  376. if (rc) {
  377. DSI_ERR("[%s] seamless mode mismatch failure rc=%d\n",
  378. c_bridge->display->name, rc);
  379. return false;
  380. }
  381. /* No panel mode switch when drm pipeline is changing */
  382. if ((dsi_mode.panel_mode != cur_dsi_mode.panel_mode) &&
  383. (!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
  384. (crtc_state->enable ==
  385. crtc_state->crtc->state->enable)) {
  386. dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_POMS;
  387. SDE_EVT32(SDE_EVTLOG_FUNC_CASE1,
  388. dsi_mode.timing.h_active,
  389. dsi_mode.timing.v_active,
  390. dsi_mode.timing.refresh_rate,
  391. dsi_mode.pixel_clk_khz,
  392. dsi_mode.panel_mode);
  393. }
  394. /* No DMS/VRR when drm pipeline is changing */
  395. if (!drm_mode_equal(cur_mode, adjusted_mode) &&
  396. (!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR)) &&
  397. (!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_POMS)) &&
  398. (!(dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_DYN_CLK)) &&
  399. (!crtc_state->active_changed ||
  400. display->is_cont_splash_enabled)) {
  401. dsi_mode.dsi_mode_flags |= DSI_MODE_FLAG_DMS;
  402. SDE_EVT32(SDE_EVTLOG_FUNC_CASE2,
  403. dsi_mode.timing.h_active,
  404. dsi_mode.timing.v_active,
  405. dsi_mode.timing.refresh_rate,
  406. dsi_mode.pixel_clk_khz,
  407. dsi_mode.panel_mode);
  408. }
  409. }
  410. /* Reject seamless transition when active changed */
  411. if (crtc_state->active_changed &&
  412. ((dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR) ||
  413. (dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_POMS) ||
  414. (dsi_mode.dsi_mode_flags & DSI_MODE_FLAG_DYN_CLK))) {
  415. DSI_INFO("seamless upon active changed 0x%x %d\n",
  416. dsi_mode.dsi_mode_flags, crtc_state->active_changed);
  417. return false;
  418. }
  419. /* convert back to drm mode, propagating the private info & flags */
  420. dsi_convert_to_drm_mode(&dsi_mode, adjusted_mode);
  421. dsi_convert_to_msm_mode(&dsi_mode, &conn_state->msm_mode);
  422. return true;
  423. }
  424. u32 dsi_drm_get_dfps_maxfps(void *display)
  425. {
  426. u32 dfps_maxfps = 0;
  427. struct dsi_display *dsi_display = display;
  428. /*
  429. * The time of SDE transmitting one frame active data
  430. * will not be changed, if frame rate is adjusted with
  431. * VFP method.
  432. * So only return max fps of DFPS for UIDLE update, if DFPS
  433. * is enabled with VFP.
  434. */
  435. if (dsi_display && dsi_display->panel &&
  436. dsi_display->panel->panel_mode == DSI_OP_VIDEO_MODE &&
  437. dsi_display->panel->dfps_caps.type ==
  438. DSI_DFPS_IMMEDIATE_VFP)
  439. dfps_maxfps =
  440. dsi_display->panel->dfps_caps.max_refresh_rate;
  441. return dfps_maxfps;
  442. }
  443. u64 dsi_drm_find_bit_clk_rate(void *display,
  444. const struct drm_display_mode *drm_mode)
  445. {
  446. int i = 0, count = 0;
  447. struct dsi_display *dsi_display = display;
  448. struct dsi_display_mode *dsi_mode;
  449. u64 bit_clk_rate = 0;
  450. if (!dsi_display || !drm_mode)
  451. return 0;
  452. dsi_display_get_mode_count(dsi_display, &count);
  453. for (i = 0; i < count; i++) {
  454. dsi_mode = &dsi_display->modes[i];
  455. if ((dsi_mode->timing.v_active == drm_mode->vdisplay) &&
  456. (dsi_mode->timing.h_active == drm_mode->hdisplay) &&
  457. (dsi_mode->pixel_clk_khz == drm_mode->clock) &&
  458. (dsi_mode->timing.refresh_rate == drm_mode->vrefresh)) {
  459. bit_clk_rate = dsi_mode->timing.clk_rate_hz;
  460. break;
  461. }
  462. }
  463. return bit_clk_rate;
  464. }
  465. int dsi_conn_get_mode_info(struct drm_connector *connector,
  466. const struct drm_display_mode *drm_mode,
  467. struct msm_mode_info *mode_info,
  468. void *display, const struct msm_resource_caps_info *avail_res)
  469. {
  470. struct dsi_display_mode partial_dsi_mode, *dsi_mode = NULL;
  471. struct dsi_mode_info *timing;
  472. int src_bpp, tar_bpp, rc = 0;
  473. if (!drm_mode || !mode_info)
  474. return -EINVAL;
  475. convert_to_dsi_mode(drm_mode, &partial_dsi_mode);
  476. rc = dsi_display_find_mode(display, &partial_dsi_mode, &dsi_mode);
  477. if (rc || !dsi_mode->priv_info)
  478. return -EINVAL;
  479. memset(mode_info, 0, sizeof(*mode_info));
  480. timing = &dsi_mode->timing;
  481. mode_info->frame_rate = dsi_mode->timing.refresh_rate;
  482. mode_info->vtotal = DSI_V_TOTAL(timing);
  483. mode_info->prefill_lines = dsi_mode->priv_info->panel_prefill_lines;
  484. mode_info->jitter_numer = dsi_mode->priv_info->panel_jitter_numer;
  485. mode_info->jitter_denom = dsi_mode->priv_info->panel_jitter_denom;
  486. mode_info->dfps_maxfps = dsi_drm_get_dfps_maxfps(display);
  487. mode_info->clk_rate = dsi_drm_find_bit_clk_rate(display, drm_mode);
  488. mode_info->mdp_transfer_time_us =
  489. dsi_mode->priv_info->mdp_transfer_time_us;
  490. memcpy(&mode_info->topology, &dsi_mode->priv_info->topology,
  491. sizeof(struct msm_display_topology));
  492. if (dsi_mode->priv_info->dsc_enabled) {
  493. mode_info->comp_info.comp_type = MSM_DISPLAY_COMPRESSION_DSC;
  494. mode_info->topology.comp_type = MSM_DISPLAY_COMPRESSION_DSC;
  495. memcpy(&mode_info->comp_info.dsc_info, &dsi_mode->priv_info->dsc,
  496. sizeof(dsi_mode->priv_info->dsc));
  497. } else if (dsi_mode->priv_info->vdc_enabled) {
  498. mode_info->comp_info.comp_type = MSM_DISPLAY_COMPRESSION_VDC;
  499. mode_info->topology.comp_type = MSM_DISPLAY_COMPRESSION_VDC;
  500. memcpy(&mode_info->comp_info.vdc_info, &dsi_mode->priv_info->vdc,
  501. sizeof(dsi_mode->priv_info->vdc));
  502. }
  503. if (mode_info->comp_info.comp_type) {
  504. tar_bpp = dsi_mode->priv_info->pclk_scale.numer;
  505. src_bpp = dsi_mode->priv_info->pclk_scale.denom;
  506. mode_info->comp_info.comp_ratio = mult_frac(1, src_bpp,
  507. tar_bpp);
  508. mode_info->wide_bus_en = dsi_mode->priv_info->widebus_support;
  509. }
  510. if (dsi_mode->priv_info->roi_caps.enabled) {
  511. memcpy(&mode_info->roi_caps, &dsi_mode->priv_info->roi_caps,
  512. sizeof(dsi_mode->priv_info->roi_caps));
  513. }
  514. mode_info->allowed_mode_switches =
  515. dsi_mode->priv_info->allowed_mode_switch;
  516. return 0;
  517. }
  518. static const struct drm_bridge_funcs dsi_bridge_ops = {
  519. .attach = dsi_bridge_attach,
  520. .mode_fixup = dsi_bridge_mode_fixup,
  521. .pre_enable = dsi_bridge_pre_enable,
  522. .enable = dsi_bridge_enable,
  523. .disable = dsi_bridge_disable,
  524. .post_disable = dsi_bridge_post_disable,
  525. .mode_set = dsi_bridge_mode_set,
  526. };
  527. int dsi_conn_set_info_blob(struct drm_connector *connector,
  528. void *info, void *display, struct msm_mode_info *mode_info)
  529. {
  530. struct dsi_display *dsi_display = display;
  531. struct dsi_panel *panel;
  532. enum dsi_pixel_format fmt;
  533. u32 bpp;
  534. if (!info || !dsi_display)
  535. return -EINVAL;
  536. dsi_display->drm_conn = connector;
  537. sde_kms_info_add_keystr(info,
  538. "display type", dsi_display->display_type);
  539. switch (dsi_display->type) {
  540. case DSI_DISPLAY_SINGLE:
  541. sde_kms_info_add_keystr(info, "display config",
  542. "single display");
  543. break;
  544. case DSI_DISPLAY_EXT_BRIDGE:
  545. sde_kms_info_add_keystr(info, "display config", "ext bridge");
  546. break;
  547. case DSI_DISPLAY_SPLIT:
  548. sde_kms_info_add_keystr(info, "display config",
  549. "split display");
  550. break;
  551. case DSI_DISPLAY_SPLIT_EXT_BRIDGE:
  552. sde_kms_info_add_keystr(info, "display config",
  553. "split ext bridge");
  554. break;
  555. default:
  556. DSI_DEBUG("invalid display type:%d\n", dsi_display->type);
  557. break;
  558. }
  559. if (!dsi_display->panel) {
  560. DSI_DEBUG("invalid panel data\n");
  561. goto end;
  562. }
  563. panel = dsi_display->panel;
  564. sde_kms_info_add_keystr(info, "panel name", panel->name);
  565. switch (panel->panel_mode) {
  566. case DSI_OP_VIDEO_MODE:
  567. sde_kms_info_add_keystr(info, "panel mode", "video");
  568. sde_kms_info_add_keystr(info, "qsync support",
  569. panel->qsync_caps.qsync_min_fps ?
  570. "true" : "false");
  571. break;
  572. case DSI_OP_CMD_MODE:
  573. sde_kms_info_add_keystr(info, "panel mode", "command");
  574. sde_kms_info_add_keyint(info, "mdp_transfer_time_us",
  575. mode_info->mdp_transfer_time_us);
  576. sde_kms_info_add_keystr(info, "qsync support",
  577. panel->qsync_caps.qsync_min_fps ?
  578. "true" : "false");
  579. break;
  580. default:
  581. DSI_DEBUG("invalid panel type:%d\n", panel->panel_mode);
  582. break;
  583. }
  584. sde_kms_info_add_keystr(info, "dfps support",
  585. panel->dfps_caps.dfps_support ? "true" : "false");
  586. if (panel->dfps_caps.dfps_support) {
  587. sde_kms_info_add_keyint(info, "min_fps",
  588. panel->dfps_caps.min_refresh_rate);
  589. sde_kms_info_add_keyint(info, "max_fps",
  590. panel->dfps_caps.max_refresh_rate);
  591. }
  592. sde_kms_info_add_keystr(info, "dyn bitclk support",
  593. panel->dyn_clk_caps.dyn_clk_support ? "true" : "false");
  594. switch (panel->phy_props.rotation) {
  595. case DSI_PANEL_ROTATE_NONE:
  596. sde_kms_info_add_keystr(info, "panel orientation", "none");
  597. break;
  598. case DSI_PANEL_ROTATE_H_FLIP:
  599. sde_kms_info_add_keystr(info, "panel orientation", "horz flip");
  600. break;
  601. case DSI_PANEL_ROTATE_V_FLIP:
  602. sde_kms_info_add_keystr(info, "panel orientation", "vert flip");
  603. break;
  604. case DSI_PANEL_ROTATE_HV_FLIP:
  605. sde_kms_info_add_keystr(info, "panel orientation",
  606. "horz & vert flip");
  607. break;
  608. default:
  609. DSI_DEBUG("invalid panel rotation:%d\n",
  610. panel->phy_props.rotation);
  611. break;
  612. }
  613. switch (panel->bl_config.type) {
  614. case DSI_BACKLIGHT_PWM:
  615. sde_kms_info_add_keystr(info, "backlight type", "pwm");
  616. break;
  617. case DSI_BACKLIGHT_WLED:
  618. sde_kms_info_add_keystr(info, "backlight type", "wled");
  619. break;
  620. case DSI_BACKLIGHT_DCS:
  621. sde_kms_info_add_keystr(info, "backlight type", "dcs");
  622. break;
  623. default:
  624. DSI_DEBUG("invalid panel backlight type:%d\n",
  625. panel->bl_config.type);
  626. break;
  627. }
  628. if (panel->spr_info.enable)
  629. sde_kms_info_add_keystr(info, "spr_pack_type",
  630. msm_spr_pack_type_str[panel->spr_info.pack_type]);
  631. if (mode_info && mode_info->roi_caps.enabled) {
  632. sde_kms_info_add_keyint(info, "partial_update_num_roi",
  633. mode_info->roi_caps.num_roi);
  634. sde_kms_info_add_keyint(info, "partial_update_xstart",
  635. mode_info->roi_caps.align.xstart_pix_align);
  636. sde_kms_info_add_keyint(info, "partial_update_walign",
  637. mode_info->roi_caps.align.width_pix_align);
  638. sde_kms_info_add_keyint(info, "partial_update_wmin",
  639. mode_info->roi_caps.align.min_width);
  640. sde_kms_info_add_keyint(info, "partial_update_ystart",
  641. mode_info->roi_caps.align.ystart_pix_align);
  642. sde_kms_info_add_keyint(info, "partial_update_halign",
  643. mode_info->roi_caps.align.height_pix_align);
  644. sde_kms_info_add_keyint(info, "partial_update_hmin",
  645. mode_info->roi_caps.align.min_height);
  646. sde_kms_info_add_keyint(info, "partial_update_roimerge",
  647. mode_info->roi_caps.merge_rois);
  648. }
  649. fmt = dsi_display->config.common_config.dst_format;
  650. bpp = dsi_ctrl_pixel_format_to_bpp(fmt);
  651. sde_kms_info_add_keyint(info, "bit_depth", bpp);
  652. end:
  653. return 0;
  654. }
  655. enum drm_connector_status dsi_conn_detect(struct drm_connector *conn,
  656. bool force,
  657. void *display)
  658. {
  659. enum drm_connector_status status = connector_status_unknown;
  660. struct msm_display_info info;
  661. int rc;
  662. if (!conn || !display)
  663. return status;
  664. /* get display dsi_info */
  665. memset(&info, 0x0, sizeof(info));
  666. rc = dsi_display_get_info(conn, &info, display);
  667. if (rc) {
  668. DSI_ERR("failed to get display info, rc=%d\n", rc);
  669. return connector_status_disconnected;
  670. }
  671. if (info.capabilities & MSM_DISPLAY_CAP_HOT_PLUG)
  672. status = (info.is_connected ? connector_status_connected :
  673. connector_status_disconnected);
  674. else
  675. status = connector_status_connected;
  676. conn->display_info.width_mm = info.width_mm;
  677. conn->display_info.height_mm = info.height_mm;
  678. return status;
  679. }
  680. void dsi_connector_put_modes(struct drm_connector *connector,
  681. void *display)
  682. {
  683. struct drm_display_mode *drm_mode;
  684. struct dsi_display_mode dsi_mode, *full_dsi_mode = NULL;
  685. struct dsi_display *dsi_display;
  686. int rc = 0;
  687. if (!connector || !display)
  688. return;
  689. list_for_each_entry(drm_mode, &connector->modes, head) {
  690. convert_to_dsi_mode(drm_mode, &dsi_mode);
  691. rc = dsi_display_find_mode(display, &dsi_mode, &full_dsi_mode);
  692. if (rc)
  693. continue;
  694. dsi_display_put_mode(display, full_dsi_mode);
  695. }
  696. /* free the display structure modes also */
  697. dsi_display = display;
  698. kfree(dsi_display->modes);
  699. dsi_display->modes = NULL;
  700. }
  701. static int dsi_drm_update_edid_name(struct edid *edid, const char *name)
  702. {
  703. u8 *dtd = (u8 *)&edid->detailed_timings[3];
  704. u8 standard_header[] = {0x00, 0x00, 0x00, 0xFE, 0x00};
  705. u32 dtd_size = 18;
  706. u32 header_size = sizeof(standard_header);
  707. if (!name)
  708. return -EINVAL;
  709. /* Fill standard header */
  710. memcpy(dtd, standard_header, header_size);
  711. dtd_size -= header_size;
  712. dtd_size = min_t(u32, dtd_size, strlen(name));
  713. memcpy(dtd + header_size, name, dtd_size);
  714. return 0;
  715. }
  716. static void dsi_drm_update_dtd(struct edid *edid,
  717. struct dsi_display_mode *modes, u32 modes_count)
  718. {
  719. u32 i;
  720. u32 count = min_t(u32, modes_count, 3);
  721. for (i = 0; i < count; i++) {
  722. struct detailed_timing *dtd = &edid->detailed_timings[i];
  723. struct dsi_display_mode *mode = &modes[i];
  724. struct dsi_mode_info *timing = &mode->timing;
  725. struct detailed_pixel_timing *pd = &dtd->data.pixel_data;
  726. u32 h_blank = timing->h_front_porch + timing->h_sync_width +
  727. timing->h_back_porch;
  728. u32 v_blank = timing->v_front_porch + timing->v_sync_width +
  729. timing->v_back_porch;
  730. u32 h_img = 0, v_img = 0;
  731. dtd->pixel_clock = mode->pixel_clk_khz / 10;
  732. pd->hactive_lo = timing->h_active & 0xFF;
  733. pd->hblank_lo = h_blank & 0xFF;
  734. pd->hactive_hblank_hi = ((h_blank >> 8) & 0xF) |
  735. ((timing->h_active >> 8) & 0xF) << 4;
  736. pd->vactive_lo = timing->v_active & 0xFF;
  737. pd->vblank_lo = v_blank & 0xFF;
  738. pd->vactive_vblank_hi = ((v_blank >> 8) & 0xF) |
  739. ((timing->v_active >> 8) & 0xF) << 4;
  740. pd->hsync_offset_lo = timing->h_front_porch & 0xFF;
  741. pd->hsync_pulse_width_lo = timing->h_sync_width & 0xFF;
  742. pd->vsync_offset_pulse_width_lo =
  743. ((timing->v_front_porch & 0xF) << 4) |
  744. (timing->v_sync_width & 0xF);
  745. pd->hsync_vsync_offset_pulse_width_hi =
  746. (((timing->h_front_porch >> 8) & 0x3) << 6) |
  747. (((timing->h_sync_width >> 8) & 0x3) << 4) |
  748. (((timing->v_front_porch >> 4) & 0x3) << 2) |
  749. (((timing->v_sync_width >> 4) & 0x3) << 0);
  750. pd->width_mm_lo = h_img & 0xFF;
  751. pd->height_mm_lo = v_img & 0xFF;
  752. pd->width_height_mm_hi = (((h_img >> 8) & 0xF) << 4) |
  753. ((v_img >> 8) & 0xF);
  754. pd->hborder = 0;
  755. pd->vborder = 0;
  756. pd->misc = 0;
  757. }
  758. }
  759. static void dsi_drm_update_checksum(struct edid *edid)
  760. {
  761. u8 *data = (u8 *)edid;
  762. u32 i, sum = 0;
  763. for (i = 0; i < EDID_LENGTH - 1; i++)
  764. sum += data[i];
  765. edid->checksum = 0x100 - (sum & 0xFF);
  766. }
  767. int dsi_connector_get_modes(struct drm_connector *connector, void *data,
  768. const struct msm_resource_caps_info *avail_res)
  769. {
  770. int rc, i;
  771. u32 count = 0, edid_size;
  772. struct dsi_display_mode *modes = NULL;
  773. struct drm_display_mode drm_mode;
  774. struct dsi_display *display = data;
  775. struct edid edid;
  776. unsigned int width_mm = connector->display_info.width_mm;
  777. unsigned int height_mm = connector->display_info.height_mm;
  778. const u8 edid_buf[EDID_LENGTH] = {
  779. 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x44, 0x6D,
  780. 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x1B, 0x10, 0x01, 0x03,
  781. 0x80, 0x00, 0x00, 0x78, 0x0A, 0x0D, 0xC9, 0xA0, 0x57, 0x47,
  782. 0x98, 0x27, 0x12, 0x48, 0x4C, 0x00, 0x00, 0x00, 0x01, 0x01,
  783. 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
  784. 0x01, 0x01, 0x01, 0x01,
  785. };
  786. edid_size = min_t(u32, sizeof(edid), EDID_LENGTH);
  787. memcpy(&edid, edid_buf, edid_size);
  788. rc = dsi_display_get_mode_count(display, &count);
  789. if (rc) {
  790. DSI_ERR("failed to get num of modes, rc=%d\n", rc);
  791. goto end;
  792. }
  793. rc = dsi_display_get_modes(display, &modes);
  794. if (rc) {
  795. DSI_ERR("failed to get modes, rc=%d\n", rc);
  796. count = 0;
  797. goto end;
  798. }
  799. for (i = 0; i < count; i++) {
  800. struct drm_display_mode *m;
  801. memset(&drm_mode, 0x0, sizeof(drm_mode));
  802. dsi_convert_to_drm_mode(&modes[i], &drm_mode);
  803. m = drm_mode_duplicate(connector->dev, &drm_mode);
  804. if (!m) {
  805. DSI_ERR("failed to add mode %ux%u\n",
  806. drm_mode.hdisplay,
  807. drm_mode.vdisplay);
  808. count = -ENOMEM;
  809. goto end;
  810. }
  811. m->width_mm = connector->display_info.width_mm;
  812. m->height_mm = connector->display_info.height_mm;
  813. if (display->cmdline_timing != NO_OVERRIDE) {
  814. /* get the preferred mode from dsi display mode */
  815. if (modes[i].is_preferred)
  816. m->type |= DRM_MODE_TYPE_PREFERRED;
  817. } else if (i == 0) {
  818. /* set the first mode in list as preferred */
  819. m->type |= DRM_MODE_TYPE_PREFERRED;
  820. }
  821. drm_mode_probed_add(connector, m);
  822. }
  823. rc = dsi_drm_update_edid_name(&edid, display->panel->name);
  824. if (rc) {
  825. count = 0;
  826. goto end;
  827. }
  828. edid.width_cm = (connector->display_info.width_mm) / 10;
  829. edid.height_cm = (connector->display_info.height_mm) / 10;
  830. dsi_drm_update_dtd(&edid, modes, count);
  831. dsi_drm_update_checksum(&edid);
  832. rc = drm_connector_update_edid_property(connector, &edid);
  833. if (rc)
  834. count = 0;
  835. /*
  836. * DRM EDID structure maintains panel physical dimensions in
  837. * centimeters, we will be losing the precision anything below cm.
  838. * Changing DRM framework will effect other clients at this
  839. * moment, overriding the values back to millimeter.
  840. */
  841. connector->display_info.width_mm = width_mm;
  842. connector->display_info.height_mm = height_mm;
  843. end:
  844. DSI_DEBUG("MODE COUNT =%d\n\n", count);
  845. return count;
  846. }
  847. enum drm_mode_status dsi_conn_mode_valid(struct drm_connector *connector,
  848. struct drm_display_mode *mode,
  849. void *display, const struct msm_resource_caps_info *avail_res)
  850. {
  851. struct dsi_display_mode dsi_mode;
  852. struct dsi_display_mode *full_dsi_mode = NULL;
  853. int rc;
  854. if (!connector || !mode) {
  855. DSI_ERR("Invalid params\n");
  856. return MODE_ERROR;
  857. }
  858. convert_to_dsi_mode(mode, &dsi_mode);
  859. rc = dsi_display_find_mode(display, &dsi_mode, &full_dsi_mode);
  860. if (rc) {
  861. DSI_ERR("could not find mode %s\n", mode->name);
  862. return MODE_ERROR;
  863. }
  864. rc = dsi_display_validate_mode(display, full_dsi_mode,
  865. DSI_VALIDATE_FLAG_ALLOW_ADJUST);
  866. if (rc) {
  867. DSI_ERR("mode not supported, rc=%d\n", rc);
  868. return MODE_BAD;
  869. }
  870. return MODE_OK;
  871. }
  872. int dsi_conn_pre_kickoff(struct drm_connector *connector,
  873. void *display,
  874. struct msm_display_kickoff_params *params)
  875. {
  876. if (!connector || !display || !params) {
  877. DSI_ERR("Invalid params\n");
  878. return -EINVAL;
  879. }
  880. return dsi_display_pre_kickoff(connector, display, params);
  881. }
  882. int dsi_conn_prepare_commit(void *display,
  883. struct msm_display_conn_params *params)
  884. {
  885. if (!display || !params) {
  886. pr_err("Invalid params\n");
  887. return -EINVAL;
  888. }
  889. return dsi_display_pre_commit(display, params);
  890. }
  891. void dsi_conn_enable_event(struct drm_connector *connector,
  892. uint32_t event_idx, bool enable, void *display)
  893. {
  894. struct dsi_event_cb_info event_info;
  895. memset(&event_info, 0, sizeof(event_info));
  896. event_info.event_cb = sde_connector_trigger_event;
  897. event_info.event_usr_ptr = connector;
  898. dsi_display_enable_event(connector, display,
  899. event_idx, &event_info, enable);
  900. }
  901. int dsi_conn_post_kickoff(struct drm_connector *connector,
  902. struct msm_display_conn_params *params)
  903. {
  904. struct drm_encoder *encoder;
  905. struct drm_bridge *bridge;
  906. struct dsi_bridge *c_bridge;
  907. struct dsi_display_mode adj_mode;
  908. struct dsi_display *display;
  909. struct dsi_display_ctrl *m_ctrl, *ctrl;
  910. int i, rc = 0, ctrl_version;
  911. bool enable;
  912. struct dsi_dyn_clk_caps *dyn_clk_caps;
  913. if (!connector || !connector->state) {
  914. DSI_ERR("invalid connector or connector state\n");
  915. return -EINVAL;
  916. }
  917. encoder = connector->state->best_encoder;
  918. if (!encoder) {
  919. DSI_DEBUG("best encoder is not available\n");
  920. return 0;
  921. }
  922. bridge = drm_bridge_chain_get_first_bridge(encoder);
  923. if (!bridge) {
  924. DSI_DEBUG("bridge is not available\n");
  925. return 0;
  926. }
  927. c_bridge = to_dsi_bridge(bridge);
  928. adj_mode = c_bridge->dsi_mode;
  929. display = c_bridge->display;
  930. dyn_clk_caps = &(display->panel->dyn_clk_caps);
  931. if (adj_mode.dsi_mode_flags & DSI_MODE_FLAG_VRR) {
  932. m_ctrl = &display->ctrl[display->clk_master_idx];
  933. ctrl_version = m_ctrl->ctrl->version;
  934. rc = dsi_ctrl_timing_db_update(m_ctrl->ctrl, false);
  935. if (rc) {
  936. DSI_ERR("[%s] failed to dfps update rc=%d\n",
  937. display->name, rc);
  938. return -EINVAL;
  939. }
  940. if ((ctrl_version >= DSI_CTRL_VERSION_2_5) &&
  941. (dyn_clk_caps->maintain_const_fps)) {
  942. display_for_each_ctrl(i, display) {
  943. ctrl = &display->ctrl[i];
  944. rc = dsi_ctrl_wait4dynamic_refresh_done(
  945. ctrl->ctrl);
  946. if (rc)
  947. DSI_ERR("wait4dfps refresh failed\n");
  948. }
  949. }
  950. /* Update the rest of the controllers */
  951. display_for_each_ctrl(i, display) {
  952. ctrl = &display->ctrl[i];
  953. if (!ctrl->ctrl || (ctrl == m_ctrl))
  954. continue;
  955. rc = dsi_ctrl_timing_db_update(ctrl->ctrl, false);
  956. if (rc) {
  957. DSI_ERR("[%s] failed to dfps update rc=%d\n",
  958. display->name, rc);
  959. return -EINVAL;
  960. }
  961. }
  962. c_bridge->dsi_mode.dsi_mode_flags &= ~DSI_MODE_FLAG_VRR;
  963. }
  964. /* ensure dynamic clk switch flag is reset */
  965. c_bridge->dsi_mode.dsi_mode_flags &= ~DSI_MODE_FLAG_DYN_CLK;
  966. if (params->qsync_update) {
  967. enable = (params->qsync_mode > 0) ? true : false;
  968. display_for_each_ctrl(i, display)
  969. dsi_ctrl_setup_avr(display->ctrl[i].ctrl, enable);
  970. }
  971. if (display->drm_conn)
  972. sde_connector_helper_post_kickoff(display->drm_conn);
  973. return 0;
  974. }
  975. struct dsi_bridge *dsi_drm_bridge_init(struct dsi_display *display,
  976. struct drm_device *dev,
  977. struct drm_encoder *encoder)
  978. {
  979. int rc = 0;
  980. struct dsi_bridge *bridge;
  981. bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
  982. if (!bridge) {
  983. rc = -ENOMEM;
  984. goto error;
  985. }
  986. bridge->display = display;
  987. bridge->base.funcs = &dsi_bridge_ops;
  988. bridge->base.encoder = encoder;
  989. rc = drm_bridge_attach(encoder, &bridge->base, NULL, 0);
  990. if (rc) {
  991. DSI_ERR("failed to attach bridge, rc=%d\n", rc);
  992. goto error_free_bridge;
  993. }
  994. return bridge;
  995. error_free_bridge:
  996. kfree(bridge);
  997. error:
  998. return ERR_PTR(rc);
  999. }
  1000. void dsi_drm_bridge_cleanup(struct dsi_bridge *bridge)
  1001. {
  1002. kfree(bridge);
  1003. }
  1004. static bool is_valid_poms_switch(struct dsi_display_mode *mode_a,
  1005. struct dsi_display_mode *mode_b)
  1006. {
  1007. /*
  1008. * POMS cannot happen in conjunction with any other type of mode set.
  1009. * Check to ensure FPS remains same between the modes and also
  1010. * resolution.
  1011. */
  1012. return((mode_a->timing.refresh_rate == mode_b->timing.refresh_rate) &&
  1013. (mode_a->timing.v_active == mode_b->timing.v_active) &&
  1014. (mode_a->timing.h_active == mode_b->timing.h_active));
  1015. }
  1016. void dsi_conn_set_allowed_mode_switch(struct drm_connector *connector,
  1017. void *display)
  1018. {
  1019. u32 mode_idx = 0, cmp_mode_idx = 0;
  1020. struct drm_display_mode *drm_mode, *cmp_drm_mode;
  1021. struct dsi_display_mode dsi_mode, *panel_dsi_mode, *cmp_panel_dsi_mode;
  1022. struct list_head *mode_list = &connector->modes;
  1023. struct dsi_display *disp = display;
  1024. struct dsi_panel *panel;
  1025. int mode_count = 0, rc = 0;
  1026. struct dsi_display_mode_priv_info *dsi_mode_info, *cmp_dsi_mode_info;
  1027. bool allow_switch = false;
  1028. if (!disp || !disp->panel) {
  1029. DSI_ERR("invalid parameters");
  1030. return;
  1031. }
  1032. panel = disp->panel;
  1033. list_for_each_entry(drm_mode, &connector->modes, head)
  1034. mode_count++;
  1035. list_for_each_entry(drm_mode, &connector->modes, head) {
  1036. convert_to_dsi_mode(drm_mode, &dsi_mode);
  1037. rc = dsi_display_find_mode(display, &dsi_mode, &panel_dsi_mode);
  1038. if (rc)
  1039. return;
  1040. dsi_mode_info = panel_dsi_mode->priv_info;
  1041. dsi_mode_info->allowed_mode_switch |= BIT(mode_idx);
  1042. if (mode_idx == mode_count - 1)
  1043. break;
  1044. mode_list = mode_list->next;
  1045. cmp_mode_idx = 1;
  1046. list_for_each_entry(cmp_drm_mode, mode_list, head) {
  1047. if (&cmp_drm_mode->head == &connector->modes)
  1048. continue;
  1049. convert_to_dsi_mode(cmp_drm_mode, &dsi_mode);
  1050. rc = dsi_display_find_mode(display, &dsi_mode,
  1051. &cmp_panel_dsi_mode);
  1052. if (rc)
  1053. return;
  1054. cmp_dsi_mode_info = cmp_panel_dsi_mode->priv_info;
  1055. allow_switch = false;
  1056. /*
  1057. * FPS switch among video modes, is only supported
  1058. * if DFPS or dynamic clocks are specified.
  1059. * Reject any mode switches between video mode timing
  1060. * nodes if support for those features is not present.
  1061. */
  1062. if (panel_dsi_mode->panel_mode ==
  1063. cmp_panel_dsi_mode->panel_mode) {
  1064. if (panel_dsi_mode->panel_mode ==
  1065. DSI_OP_CMD_MODE)
  1066. allow_switch = true;
  1067. else if (panel->dfps_caps.dfps_support ||
  1068. panel->dyn_clk_caps.dyn_clk_support)
  1069. allow_switch = true;
  1070. } else {
  1071. if (is_valid_poms_switch(panel_dsi_mode,
  1072. cmp_panel_dsi_mode))
  1073. allow_switch = true;
  1074. }
  1075. if (allow_switch) {
  1076. dsi_mode_info->allowed_mode_switch |=
  1077. BIT(mode_idx + cmp_mode_idx);
  1078. cmp_dsi_mode_info->allowed_mode_switch |=
  1079. BIT(mode_idx);
  1080. }
  1081. if ((mode_idx + cmp_mode_idx) >= mode_count - 1)
  1082. break;
  1083. cmp_mode_idx++;
  1084. }
  1085. mode_idx++;
  1086. }
  1087. }