Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1 | /* |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2 | * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #define pr_fmt(fmt) "msm-dsi-display:[%s] " fmt, __func__ |
| 16 | |
| 17 | #include <linux/list.h> |
| 18 | #include <linux/of.h> |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 19 | #include <linux/err.h> |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 20 | |
| 21 | #include "msm_drv.h" |
Clarence Ip | 80ada7f | 2017-05-04 09:55:21 -0700 | [diff] [blame] | 22 | #include "sde_connector.h" |
Jordan Crouse | d8e9652 | 2017-02-13 10:14:16 -0700 | [diff] [blame] | 23 | #include "msm_mmu.h" |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 24 | #include "dsi_display.h" |
| 25 | #include "dsi_panel.h" |
| 26 | #include "dsi_ctrl.h" |
| 27 | #include "dsi_ctrl_hw.h" |
| 28 | #include "dsi_drm.h" |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 29 | #include "dsi_clk.h" |
| 30 | #include "dsi_pwr.h" |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 31 | |
| 32 | #define to_dsi_display(x) container_of(x, struct dsi_display, host) |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 33 | #define INT_BASE_10 10 |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 34 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 35 | #define MISR_BUFF_SIZE 256 |
| 36 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 37 | static DEFINE_MUTEX(dsi_display_list_lock); |
| 38 | static LIST_HEAD(dsi_display_list); |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 39 | static char dsi_display_primary[MAX_CMDLINE_PARAM_LEN]; |
| 40 | static char dsi_display_secondary[MAX_CMDLINE_PARAM_LEN]; |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 41 | static struct dsi_display_boot_param boot_displays[MAX_DSI_ACTIVE_DISPLAY]; |
| 42 | static struct device_node *default_active_node; |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 43 | static const struct of_device_id dsi_display_dt_match[] = { |
| 44 | {.compatible = "qcom,dsi-display"}, |
| 45 | {} |
| 46 | }; |
| 47 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 48 | static struct dsi_display *main_display; |
| 49 | |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 50 | void dsi_rect_intersect(const struct dsi_rect *r1, |
| 51 | const struct dsi_rect *r2, |
| 52 | struct dsi_rect *result) |
| 53 | { |
| 54 | int l, t, r, b; |
| 55 | |
| 56 | if (!r1 || !r2 || !result) |
| 57 | return; |
| 58 | |
| 59 | l = max(r1->x, r2->x); |
| 60 | t = max(r1->y, r2->y); |
| 61 | r = min((r1->x + r1->w), (r2->x + r2->w)); |
| 62 | b = min((r1->y + r1->h), (r2->y + r2->h)); |
| 63 | |
| 64 | if (r <= l || b <= t) { |
| 65 | memset(result, 0, sizeof(*result)); |
| 66 | } else { |
| 67 | result->x = l; |
| 68 | result->y = t; |
| 69 | result->w = r - l; |
| 70 | result->h = b - t; |
| 71 | } |
| 72 | } |
| 73 | |
Vishnuvardhan Prodduturi | 75b9680 | 2016-10-17 18:45:55 +0530 | [diff] [blame] | 74 | int dsi_display_set_backlight(void *display, u32 bl_lvl) |
| 75 | { |
| 76 | struct dsi_display *dsi_display = display; |
| 77 | struct dsi_panel *panel; |
| 78 | int rc = 0; |
| 79 | |
| 80 | if (dsi_display == NULL) |
| 81 | return -EINVAL; |
| 82 | |
| 83 | panel = dsi_display->panel; |
| 84 | |
| 85 | rc = dsi_panel_set_backlight(panel, bl_lvl); |
| 86 | if (rc) |
| 87 | pr_err("unable to set backlight\n"); |
| 88 | |
| 89 | return rc; |
| 90 | } |
| 91 | |
Lloyd Atkinson | 8c49c58 | 2016-11-18 14:23:54 -0500 | [diff] [blame] | 92 | int dsi_display_soft_reset(void *display) |
| 93 | { |
| 94 | struct dsi_display *dsi_display; |
| 95 | struct dsi_display_ctrl *ctrl; |
| 96 | int rc = 0; |
| 97 | int i; |
| 98 | |
| 99 | if (!display) |
| 100 | return -EINVAL; |
| 101 | |
| 102 | dsi_display = display; |
| 103 | |
| 104 | for (i = 0 ; i < dsi_display->ctrl_count; i++) { |
| 105 | ctrl = &dsi_display->ctrl[i]; |
| 106 | rc = dsi_ctrl_soft_reset(ctrl->ctrl); |
| 107 | if (rc) { |
| 108 | pr_err("[%s] failed to soft reset host_%d, rc=%d\n", |
| 109 | dsi_display->name, i, rc); |
| 110 | break; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | return rc; |
| 115 | } |
Ping Li | 8430ee1 | 2017-02-24 14:14:44 -0800 | [diff] [blame] | 116 | |
| 117 | enum dsi_pixel_format dsi_display_get_dst_format(void *display) |
| 118 | { |
| 119 | enum dsi_pixel_format format = DSI_PIXEL_FORMAT_MAX; |
| 120 | struct dsi_display *dsi_display = (struct dsi_display *)display; |
| 121 | |
| 122 | if (!dsi_display || !dsi_display->panel) { |
| 123 | pr_err("Invalid params(s) dsi_display %pK, panel %pK\n", |
| 124 | dsi_display, |
| 125 | ((dsi_display) ? dsi_display->panel : NULL)); |
| 126 | return format; |
| 127 | } |
| 128 | |
| 129 | format = dsi_display->panel->host_config.dst_format; |
| 130 | return format; |
| 131 | } |
| 132 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 133 | static void _dsi_display_setup_misr(struct dsi_display *display) |
| 134 | { |
| 135 | int i; |
| 136 | |
| 137 | for (i = 0; i < display->ctrl_count; i++) { |
| 138 | dsi_ctrl_setup_misr(display->ctrl[i].ctrl, |
| 139 | display->misr_enable, |
| 140 | display->misr_frame_count); |
| 141 | } |
| 142 | } |
| 143 | |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 144 | static ssize_t debugfs_dump_info_read(struct file *file, |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 145 | char __user *user_buf, |
| 146 | size_t user_len, |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 147 | loff_t *ppos) |
| 148 | { |
| 149 | struct dsi_display *display = file->private_data; |
| 150 | char *buf; |
| 151 | u32 len = 0; |
| 152 | int i; |
| 153 | |
| 154 | if (!display) |
| 155 | return -ENODEV; |
| 156 | |
| 157 | if (*ppos) |
| 158 | return 0; |
| 159 | |
| 160 | buf = kzalloc(SZ_4K, GFP_KERNEL); |
| 161 | if (!buf) |
| 162 | return -ENOMEM; |
| 163 | |
| 164 | len += snprintf(buf + len, (SZ_4K - len), "name = %s\n", display->name); |
| 165 | len += snprintf(buf + len, (SZ_4K - len), |
| 166 | "\tResolution = %dx%d\n", |
| 167 | display->config.video_timing.h_active, |
| 168 | display->config.video_timing.v_active); |
| 169 | |
| 170 | for (i = 0; i < display->ctrl_count; i++) { |
| 171 | len += snprintf(buf + len, (SZ_4K - len), |
| 172 | "\tCTRL_%d:\n\t\tctrl = %s\n\t\tphy = %s\n", |
| 173 | i, display->ctrl[i].ctrl->name, |
| 174 | display->ctrl[i].phy->name); |
| 175 | } |
| 176 | |
| 177 | len += snprintf(buf + len, (SZ_4K - len), |
| 178 | "\tPanel = %s\n", display->panel->name); |
| 179 | |
| 180 | len += snprintf(buf + len, (SZ_4K - len), |
| 181 | "\tClock master = %s\n", |
| 182 | display->ctrl[display->clk_master_idx].ctrl->name); |
| 183 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 184 | if (copy_to_user(user_buf, buf, len)) { |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 185 | kfree(buf); |
| 186 | return -EFAULT; |
| 187 | } |
| 188 | |
| 189 | *ppos += len; |
| 190 | |
| 191 | kfree(buf); |
| 192 | return len; |
| 193 | } |
| 194 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 195 | static ssize_t debugfs_misr_setup(struct file *file, |
| 196 | const char __user *user_buf, |
| 197 | size_t user_len, |
| 198 | loff_t *ppos) |
| 199 | { |
| 200 | struct dsi_display *display = file->private_data; |
| 201 | char *buf; |
| 202 | int rc = 0; |
| 203 | size_t len; |
| 204 | u32 enable, frame_count; |
| 205 | |
| 206 | if (!display) |
| 207 | return -ENODEV; |
| 208 | |
| 209 | if (*ppos) |
| 210 | return 0; |
| 211 | |
| 212 | buf = kzalloc(MISR_BUFF_SIZE, GFP_KERNEL); |
| 213 | if (!buf) |
| 214 | return -ENOMEM; |
| 215 | |
| 216 | /* leave room for termination char */ |
| 217 | len = min_t(size_t, user_len, MISR_BUFF_SIZE - 1); |
| 218 | if (copy_from_user(buf, user_buf, len)) { |
| 219 | rc = -EINVAL; |
| 220 | goto error; |
| 221 | } |
| 222 | |
| 223 | buf[len] = '\0'; /* terminate the string */ |
| 224 | |
| 225 | if (sscanf(buf, "%u %u", &enable, &frame_count) != 2) { |
| 226 | rc = -EINVAL; |
| 227 | goto error; |
| 228 | } |
| 229 | |
| 230 | display->misr_enable = enable; |
| 231 | display->misr_frame_count = frame_count; |
| 232 | |
| 233 | mutex_lock(&display->display_lock); |
| 234 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 235 | DSI_CORE_CLK, DSI_CLK_ON); |
| 236 | if (rc) { |
| 237 | pr_err("[%s] failed to enable DSI core clocks, rc=%d\n", |
| 238 | display->name, rc); |
| 239 | goto unlock; |
| 240 | } |
| 241 | |
| 242 | _dsi_display_setup_misr(display); |
| 243 | |
| 244 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 245 | DSI_CORE_CLK, DSI_CLK_OFF); |
| 246 | if (rc) { |
| 247 | pr_err("[%s] failed to disable DSI core clocks, rc=%d\n", |
| 248 | display->name, rc); |
| 249 | goto unlock; |
| 250 | } |
| 251 | |
| 252 | rc = user_len; |
| 253 | unlock: |
| 254 | mutex_unlock(&display->display_lock); |
| 255 | error: |
| 256 | kfree(buf); |
| 257 | return rc; |
| 258 | } |
| 259 | |
| 260 | static ssize_t debugfs_misr_read(struct file *file, |
| 261 | char __user *user_buf, |
| 262 | size_t user_len, |
| 263 | loff_t *ppos) |
| 264 | { |
| 265 | struct dsi_display *display = file->private_data; |
| 266 | char *buf; |
| 267 | u32 len = 0; |
| 268 | int rc = 0; |
| 269 | struct dsi_ctrl *dsi_ctrl; |
| 270 | int i; |
| 271 | u32 misr; |
| 272 | size_t max_len = min_t(size_t, user_len, MISR_BUFF_SIZE); |
| 273 | |
| 274 | if (!display) |
| 275 | return -ENODEV; |
| 276 | |
| 277 | if (*ppos) |
| 278 | return 0; |
| 279 | |
| 280 | buf = kzalloc(max_len, GFP_KERNEL); |
| 281 | if (!buf) |
| 282 | return -ENOMEM; |
| 283 | |
| 284 | mutex_lock(&display->display_lock); |
| 285 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 286 | DSI_CORE_CLK, DSI_CLK_ON); |
| 287 | if (rc) { |
| 288 | pr_err("[%s] failed to enable DSI core clocks, rc=%d\n", |
| 289 | display->name, rc); |
| 290 | goto error; |
| 291 | } |
| 292 | |
| 293 | for (i = 0; i < display->ctrl_count; i++) { |
| 294 | dsi_ctrl = display->ctrl[i].ctrl; |
| 295 | misr = dsi_ctrl_collect_misr(display->ctrl[i].ctrl); |
| 296 | |
| 297 | len += snprintf((buf + len), max_len - len, |
| 298 | "DSI_%d MISR: 0x%x\n", dsi_ctrl->cell_index, misr); |
| 299 | |
| 300 | if (len >= max_len) |
| 301 | break; |
| 302 | } |
| 303 | |
| 304 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 305 | DSI_CORE_CLK, DSI_CLK_OFF); |
| 306 | if (rc) { |
| 307 | pr_err("[%s] failed to disable DSI core clocks, rc=%d\n", |
| 308 | display->name, rc); |
| 309 | goto error; |
| 310 | } |
| 311 | |
| 312 | if (copy_to_user(user_buf, buf, len)) { |
| 313 | rc = -EFAULT; |
| 314 | goto error; |
| 315 | } |
| 316 | |
| 317 | *ppos += len; |
| 318 | |
| 319 | error: |
| 320 | mutex_unlock(&display->display_lock); |
| 321 | kfree(buf); |
| 322 | return len; |
| 323 | } |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 324 | |
| 325 | static const struct file_operations dump_info_fops = { |
| 326 | .open = simple_open, |
| 327 | .read = debugfs_dump_info_read, |
| 328 | }; |
| 329 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 330 | static const struct file_operations misr_data_fops = { |
| 331 | .open = simple_open, |
| 332 | .read = debugfs_misr_read, |
| 333 | .write = debugfs_misr_setup, |
| 334 | }; |
| 335 | |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 336 | static int dsi_display_debugfs_init(struct dsi_display *display) |
| 337 | { |
| 338 | int rc = 0; |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 339 | struct dentry *dir, *dump_file, *misr_data; |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 340 | |
| 341 | dir = debugfs_create_dir(display->name, NULL); |
| 342 | if (IS_ERR_OR_NULL(dir)) { |
| 343 | rc = PTR_ERR(dir); |
| 344 | pr_err("[%s] debugfs create dir failed, rc = %d\n", |
| 345 | display->name, rc); |
| 346 | goto error; |
| 347 | } |
| 348 | |
| 349 | dump_file = debugfs_create_file("dump_info", |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 350 | 0400, |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 351 | dir, |
| 352 | display, |
| 353 | &dump_info_fops); |
| 354 | if (IS_ERR_OR_NULL(dump_file)) { |
| 355 | rc = PTR_ERR(dump_file); |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 356 | pr_err("[%s] debugfs create dump info file failed, rc=%d\n", |
| 357 | display->name, rc); |
| 358 | goto error_remove_dir; |
| 359 | } |
| 360 | |
| 361 | misr_data = debugfs_create_file("misr_data", |
| 362 | 0600, |
| 363 | dir, |
| 364 | display, |
| 365 | &misr_data_fops); |
| 366 | if (IS_ERR_OR_NULL(misr_data)) { |
| 367 | rc = PTR_ERR(misr_data); |
| 368 | pr_err("[%s] debugfs create misr datafile failed, rc=%d\n", |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 369 | display->name, rc); |
| 370 | goto error_remove_dir; |
| 371 | } |
| 372 | |
| 373 | display->root = dir; |
| 374 | return rc; |
| 375 | error_remove_dir: |
| 376 | debugfs_remove(dir); |
| 377 | error: |
| 378 | return rc; |
| 379 | } |
| 380 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 381 | static int dsi_display_debugfs_deinit(struct dsi_display *display) |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 382 | { |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 383 | debugfs_remove_recursive(display->root); |
Ajay Singh Parmar | 48ea427 | 2016-06-27 11:44:34 -0700 | [diff] [blame] | 384 | |
| 385 | return 0; |
| 386 | } |
| 387 | |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 388 | static void adjust_timing_by_ctrl_count(const struct dsi_display *display, |
| 389 | struct dsi_display_mode *mode) |
| 390 | { |
| 391 | if (display->ctrl_count > 1) { |
| 392 | mode->timing.h_active /= display->ctrl_count; |
| 393 | mode->timing.h_front_porch /= display->ctrl_count; |
| 394 | mode->timing.h_sync_width /= display->ctrl_count; |
| 395 | mode->timing.h_back_porch /= display->ctrl_count; |
| 396 | mode->timing.h_skew /= display->ctrl_count; |
| 397 | mode->pixel_clk_khz /= display->ctrl_count; |
| 398 | } |
| 399 | } |
| 400 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 401 | static int dsi_display_is_ulps_req_valid(struct dsi_display *display, |
| 402 | bool enable) |
| 403 | { |
| 404 | /* TODO: make checks based on cont. splash */ |
| 405 | int splash_enabled = false; |
| 406 | |
| 407 | pr_debug("checking ulps req validity\n"); |
| 408 | |
| 409 | if (!dsi_panel_ulps_feature_enabled(display->panel)) |
| 410 | return false; |
| 411 | |
| 412 | /* TODO: ULPS during suspend */ |
| 413 | if (!dsi_panel_initialized(display->panel)) |
| 414 | return false; |
| 415 | |
| 416 | if (enable && display->ulps_enabled) { |
| 417 | pr_debug("ULPS already enabled\n"); |
| 418 | return false; |
| 419 | } else if (!enable && !display->ulps_enabled) { |
| 420 | pr_debug("ULPS already disabled\n"); |
| 421 | return false; |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | * No need to enter ULPS when transitioning from splash screen to |
| 426 | * boot animation since it is expected that the clocks would be turned |
| 427 | * right back on. |
| 428 | */ |
| 429 | if (enable && splash_enabled) |
| 430 | return false; |
| 431 | |
| 432 | return true; |
| 433 | } |
| 434 | |
| 435 | |
| 436 | /** |
| 437 | * dsi_display_set_ulps() - set ULPS state for DSI lanes. |
| 438 | * @dsi_display: DSI display handle. |
| 439 | * @enable: enable/disable ULPS. |
| 440 | * |
| 441 | * ULPS can be enabled/disabled after DSI host engine is turned on. |
| 442 | * |
| 443 | * Return: error code. |
| 444 | */ |
| 445 | static int dsi_display_set_ulps(struct dsi_display *display, bool enable) |
| 446 | { |
| 447 | int rc = 0; |
| 448 | int i = 0; |
| 449 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 450 | |
| 451 | |
| 452 | if (!display) { |
| 453 | pr_err("Invalid params\n"); |
| 454 | return -EINVAL; |
| 455 | } |
| 456 | |
| 457 | if (!dsi_display_is_ulps_req_valid(display, enable)) { |
| 458 | pr_debug("%s: skipping ULPS config, enable=%d\n", |
| 459 | __func__, enable); |
| 460 | return 0; |
| 461 | } |
| 462 | |
| 463 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 464 | |
| 465 | rc = dsi_ctrl_set_ulps(m_ctrl->ctrl, enable); |
| 466 | if (rc) { |
| 467 | pr_err("Ulps controller state change(%d) failed\n", enable); |
| 468 | return rc; |
| 469 | } |
| 470 | |
Veera Sundaram Sankaran | bb3680f | 2017-04-21 13:20:46 -0700 | [diff] [blame] | 471 | rc = dsi_phy_set_ulps(m_ctrl->phy, &display->config, enable, |
| 472 | display->clamp_enabled); |
Padmanabhan Komanduru | 56611ef | 2016-12-19 12:21:11 +0530 | [diff] [blame] | 473 | if (rc) { |
| 474 | pr_err("Ulps PHY state change(%d) failed\n", enable); |
| 475 | return rc; |
| 476 | } |
| 477 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 478 | for (i = 0; i < display->ctrl_count; i++) { |
| 479 | ctrl = &display->ctrl[i]; |
| 480 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 481 | continue; |
| 482 | |
| 483 | rc = dsi_ctrl_set_ulps(ctrl->ctrl, enable); |
| 484 | if (rc) { |
| 485 | pr_err("Ulps controller state change(%d) failed\n", |
| 486 | enable); |
| 487 | return rc; |
| 488 | } |
Padmanabhan Komanduru | 56611ef | 2016-12-19 12:21:11 +0530 | [diff] [blame] | 489 | |
Veera Sundaram Sankaran | bb3680f | 2017-04-21 13:20:46 -0700 | [diff] [blame] | 490 | rc = dsi_phy_set_ulps(ctrl->phy, &display->config, enable, |
| 491 | display->clamp_enabled); |
Padmanabhan Komanduru | 56611ef | 2016-12-19 12:21:11 +0530 | [diff] [blame] | 492 | if (rc) { |
| 493 | pr_err("Ulps PHY state change(%d) failed\n", enable); |
| 494 | return rc; |
| 495 | } |
| 496 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 497 | } |
| 498 | display->ulps_enabled = enable; |
| 499 | return 0; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * dsi_display_set_clamp() - set clamp state for DSI IO. |
| 504 | * @dsi_display: DSI display handle. |
| 505 | * @enable: enable/disable clamping. |
| 506 | * |
| 507 | * Return: error code. |
| 508 | */ |
| 509 | static int dsi_display_set_clamp(struct dsi_display *display, bool enable) |
| 510 | { |
| 511 | int rc = 0; |
| 512 | int i = 0; |
| 513 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 514 | bool ulps_enabled = false; |
| 515 | |
| 516 | |
| 517 | if (!display) { |
| 518 | pr_err("Invalid params\n"); |
| 519 | return -EINVAL; |
| 520 | } |
| 521 | |
| 522 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 523 | ulps_enabled = display->ulps_enabled; |
| 524 | |
| 525 | rc = dsi_ctrl_set_clamp_state(m_ctrl->ctrl, enable, ulps_enabled); |
| 526 | if (rc) { |
| 527 | pr_err("DSI Clamp state change(%d) failed\n", enable); |
| 528 | return rc; |
| 529 | } |
| 530 | |
| 531 | for (i = 0; i < display->ctrl_count; i++) { |
| 532 | ctrl = &display->ctrl[i]; |
| 533 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 534 | continue; |
| 535 | |
| 536 | rc = dsi_ctrl_set_clamp_state(ctrl->ctrl, enable, ulps_enabled); |
| 537 | if (rc) { |
| 538 | pr_err("DSI Clamp state change(%d) failed\n", enable); |
| 539 | return rc; |
| 540 | } |
| 541 | } |
| 542 | display->clamp_enabled = enable; |
| 543 | return 0; |
| 544 | } |
| 545 | |
| 546 | /** |
| 547 | * dsi_display_setup_ctrl() - setup DSI controller. |
| 548 | * @dsi_display: DSI display handle. |
| 549 | * |
| 550 | * Return: error code. |
| 551 | */ |
| 552 | static int dsi_display_ctrl_setup(struct dsi_display *display) |
| 553 | { |
| 554 | int rc = 0; |
| 555 | int i = 0; |
| 556 | struct dsi_display_ctrl *ctrl, *m_ctrl; |
| 557 | |
| 558 | |
| 559 | if (!display) { |
| 560 | pr_err("Invalid params\n"); |
| 561 | return -EINVAL; |
| 562 | } |
| 563 | |
| 564 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 565 | rc = dsi_ctrl_setup(m_ctrl->ctrl); |
| 566 | if (rc) { |
| 567 | pr_err("DSI controller setup failed\n"); |
| 568 | return rc; |
| 569 | } |
| 570 | |
| 571 | for (i = 0; i < display->ctrl_count; i++) { |
| 572 | ctrl = &display->ctrl[i]; |
| 573 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 574 | continue; |
| 575 | |
| 576 | rc = dsi_ctrl_setup(ctrl->ctrl); |
| 577 | if (rc) { |
| 578 | pr_err("DSI controller setup failed\n"); |
| 579 | return rc; |
| 580 | } |
| 581 | } |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | static int dsi_display_phy_enable(struct dsi_display *display); |
| 586 | |
| 587 | /** |
| 588 | * dsi_display_phy_idle_on() - enable DSI PHY while coming out of idle screen. |
| 589 | * @dsi_display: DSI display handle. |
| 590 | * @enable: enable/disable DSI PHY. |
| 591 | * |
| 592 | * Return: error code. |
| 593 | */ |
| 594 | static int dsi_display_phy_idle_on(struct dsi_display *display, |
| 595 | bool mmss_clamp) |
| 596 | { |
| 597 | int rc = 0; |
| 598 | int i = 0; |
| 599 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 600 | |
| 601 | |
| 602 | if (!display) { |
| 603 | pr_err("Invalid params\n"); |
| 604 | return -EINVAL; |
| 605 | } |
| 606 | |
| 607 | if (mmss_clamp && !display->phy_idle_power_off) { |
| 608 | dsi_display_phy_enable(display); |
| 609 | return 0; |
| 610 | } |
| 611 | |
| 612 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 613 | rc = dsi_phy_idle_ctrl(m_ctrl->phy, true); |
| 614 | if (rc) { |
| 615 | pr_err("DSI controller setup failed\n"); |
| 616 | return rc; |
| 617 | } |
| 618 | |
| 619 | for (i = 0; i < display->ctrl_count; i++) { |
| 620 | ctrl = &display->ctrl[i]; |
| 621 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 622 | continue; |
| 623 | |
| 624 | rc = dsi_phy_idle_ctrl(ctrl->phy, true); |
| 625 | if (rc) { |
| 626 | pr_err("DSI controller setup failed\n"); |
| 627 | return rc; |
| 628 | } |
| 629 | } |
| 630 | display->phy_idle_power_off = false; |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | /** |
| 635 | * dsi_display_phy_idle_off() - disable DSI PHY while going to idle screen. |
| 636 | * @dsi_display: DSI display handle. |
| 637 | * @enable: enable/disable DSI PHY. |
| 638 | * |
| 639 | * Return: error code. |
| 640 | */ |
| 641 | static int dsi_display_phy_idle_off(struct dsi_display *display) |
| 642 | { |
| 643 | int rc = 0; |
| 644 | int i = 0; |
| 645 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 646 | |
| 647 | if (!display) { |
| 648 | pr_err("Invalid params\n"); |
| 649 | return -EINVAL; |
| 650 | } |
| 651 | |
| 652 | if (!display->panel->allow_phy_power_off) { |
| 653 | pr_debug("panel doesn't support this feature\n"); |
| 654 | return 0; |
| 655 | } |
| 656 | |
| 657 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 658 | |
| 659 | rc = dsi_phy_idle_ctrl(m_ctrl->phy, false); |
| 660 | if (rc) { |
| 661 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 662 | display->name, rc); |
| 663 | return rc; |
| 664 | } |
| 665 | |
| 666 | for (i = 0; i < display->ctrl_count; i++) { |
| 667 | ctrl = &display->ctrl[i]; |
| 668 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 669 | continue; |
| 670 | |
| 671 | rc = dsi_phy_idle_ctrl(ctrl->phy, false); |
| 672 | if (rc) { |
| 673 | pr_err("DSI controller setup failed\n"); |
| 674 | return rc; |
| 675 | } |
| 676 | } |
| 677 | display->phy_idle_power_off = true; |
| 678 | return 0; |
| 679 | } |
| 680 | |
Clarence Ip | 80ada7f | 2017-05-04 09:55:21 -0700 | [diff] [blame] | 681 | void dsi_display_enable_event(struct dsi_display *display, |
| 682 | uint32_t event_idx, struct dsi_event_cb_info *event_info, |
| 683 | bool enable) |
| 684 | { |
| 685 | uint32_t irq_status_idx = DSI_STATUS_INTERRUPT_COUNT; |
| 686 | int i; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 687 | |
Clarence Ip | 80ada7f | 2017-05-04 09:55:21 -0700 | [diff] [blame] | 688 | if (!display) { |
| 689 | pr_err("invalid display\n"); |
| 690 | return; |
| 691 | } |
| 692 | |
| 693 | if (event_info) |
| 694 | event_info->event_idx = event_idx; |
| 695 | |
| 696 | switch (event_idx) { |
| 697 | case SDE_CONN_EVENT_VID_DONE: |
| 698 | irq_status_idx = DSI_SINT_VIDEO_MODE_FRAME_DONE; |
| 699 | break; |
| 700 | case SDE_CONN_EVENT_CMD_DONE: |
| 701 | irq_status_idx = DSI_SINT_CMD_FRAME_DONE; |
| 702 | break; |
| 703 | default: |
| 704 | /* nothing to do */ |
| 705 | pr_debug("[%s] unhandled event %d\n", display->name, event_idx); |
| 706 | return; |
| 707 | } |
| 708 | |
| 709 | if (enable) { |
| 710 | for (i = 0; i < display->ctrl_count; i++) |
| 711 | dsi_ctrl_enable_status_interrupt( |
| 712 | display->ctrl[i].ctrl, irq_status_idx, |
| 713 | event_info); |
| 714 | } else { |
| 715 | for (i = 0; i < display->ctrl_count; i++) |
| 716 | dsi_ctrl_disable_status_interrupt( |
| 717 | display->ctrl[i].ctrl, irq_status_idx); |
| 718 | } |
| 719 | } |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 720 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 721 | static int dsi_display_ctrl_power_on(struct dsi_display *display) |
| 722 | { |
| 723 | int rc = 0; |
| 724 | int i; |
| 725 | struct dsi_display_ctrl *ctrl; |
| 726 | |
| 727 | /* Sequence does not matter for split dsi usecases */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 728 | for (i = 0; i < display->ctrl_count; i++) { |
| 729 | ctrl = &display->ctrl[i]; |
| 730 | if (!ctrl->ctrl) |
| 731 | continue; |
| 732 | |
| 733 | rc = dsi_ctrl_set_power_state(ctrl->ctrl, |
| 734 | DSI_CTRL_POWER_VREG_ON); |
| 735 | if (rc) { |
| 736 | pr_err("[%s] Failed to set power state, rc=%d\n", |
| 737 | ctrl->ctrl->name, rc); |
| 738 | goto error; |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | return rc; |
| 743 | error: |
| 744 | for (i = i - 1; i >= 0; i--) { |
| 745 | ctrl = &display->ctrl[i]; |
| 746 | if (!ctrl->ctrl) |
| 747 | continue; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 748 | (void)dsi_ctrl_set_power_state(ctrl->ctrl, |
| 749 | DSI_CTRL_POWER_VREG_OFF); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 750 | } |
| 751 | return rc; |
| 752 | } |
| 753 | |
| 754 | static int dsi_display_ctrl_power_off(struct dsi_display *display) |
| 755 | { |
| 756 | int rc = 0; |
| 757 | int i; |
| 758 | struct dsi_display_ctrl *ctrl; |
| 759 | |
| 760 | /* Sequence does not matter for split dsi usecases */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 761 | for (i = 0; i < display->ctrl_count; i++) { |
| 762 | ctrl = &display->ctrl[i]; |
| 763 | if (!ctrl->ctrl) |
| 764 | continue; |
| 765 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 766 | rc = dsi_ctrl_set_power_state(ctrl->ctrl, |
| 767 | DSI_CTRL_POWER_VREG_OFF); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 768 | if (rc) { |
| 769 | pr_err("[%s] Failed to power off, rc=%d\n", |
| 770 | ctrl->ctrl->name, rc); |
| 771 | goto error; |
| 772 | } |
| 773 | } |
| 774 | error: |
| 775 | return rc; |
| 776 | } |
| 777 | |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 778 | static int dsi_display_parse_cmdline_topology(unsigned int display_type) |
| 779 | { |
| 780 | char *str = NULL; |
| 781 | int top_index = -1; |
| 782 | |
| 783 | if (display_type >= MAX_DSI_ACTIVE_DISPLAY) { |
| 784 | pr_err("display_type=%d not supported\n", display_type); |
| 785 | return -EINVAL; |
| 786 | } |
| 787 | if (display_type == DSI_PRIMARY) |
| 788 | str = strnstr(dsi_display_primary, |
| 789 | ":config", strlen(dsi_display_primary)); |
| 790 | else |
| 791 | str = strnstr(dsi_display_secondary, |
| 792 | ":config", strlen(dsi_display_secondary)); |
| 793 | if (!str) |
| 794 | return -EINVAL; |
| 795 | |
| 796 | if (kstrtol(str + strlen(":config"), INT_BASE_10, |
| 797 | (unsigned long *)&top_index)) |
| 798 | return -EINVAL; |
| 799 | |
| 800 | return top_index; |
| 801 | } |
| 802 | |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 803 | /** |
| 804 | * dsi_display_name_compare()- compare whether DSI display name matches. |
| 805 | * @node: Pointer to device node structure |
| 806 | * @display_name: Name of display to validate |
| 807 | * |
| 808 | * Return: returns a bool specifying whether given display is active |
| 809 | */ |
| 810 | static bool dsi_display_name_compare(struct device_node *node, |
| 811 | const char *display_name, int index) |
| 812 | { |
| 813 | if (index >= MAX_DSI_ACTIVE_DISPLAY) { |
| 814 | pr_err("Invalid Index\n"); |
| 815 | return false; |
| 816 | } |
| 817 | |
| 818 | if (boot_displays[index].boot_disp_en) { |
| 819 | if (!(strcmp(&boot_displays[index].name[0], display_name))) { |
| 820 | boot_displays[index].node = node; |
| 821 | return true; |
| 822 | } |
| 823 | } |
| 824 | return false; |
| 825 | } |
| 826 | |
| 827 | /** |
| 828 | * dsi_display_parse_boot_display_selection()- Parse DSI boot display name |
| 829 | * |
| 830 | * Return: returns error status |
| 831 | */ |
| 832 | static int dsi_display_parse_boot_display_selection(void) |
| 833 | { |
| 834 | char *pos = NULL; |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 835 | char disp_buf[MAX_CMDLINE_PARAM_LEN] = {'\0'}; |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 836 | int i, j, num_displays; |
| 837 | |
| 838 | if (strlen(dsi_display_primary) == 0) |
| 839 | return -EINVAL; |
| 840 | |
| 841 | if ((strlen(dsi_display_secondary) > 0)) |
| 842 | num_displays = MAX_DSI_ACTIVE_DISPLAY; |
| 843 | else { |
| 844 | /* |
| 845 | * Initialize secondary dsi variables |
| 846 | * for the senario where dsi_display1 |
| 847 | * is null but dsi_display0 is valid |
| 848 | */ |
| 849 | |
| 850 | /* Max number of displays will be one->only Primary */ |
| 851 | num_displays = 1; |
| 852 | boot_displays[DSI_SECONDARY].is_primary = false; |
| 853 | boot_displays[DSI_SECONDARY].name[0] = '\0'; |
| 854 | } |
| 855 | |
| 856 | for (i = 0; i < num_displays; i++) { |
| 857 | boot_displays[i].is_primary = false; |
| 858 | if (i == DSI_PRIMARY) { |
| 859 | strlcpy(disp_buf, &dsi_display_primary[0], |
| 860 | sizeof(dsi_display_primary)); |
| 861 | pos = strnstr(disp_buf, ":", |
| 862 | sizeof(dsi_display_primary)); |
| 863 | } else { |
| 864 | strlcpy(disp_buf, &dsi_display_secondary[0], |
| 865 | sizeof(dsi_display_secondary)); |
| 866 | pos = strnstr(disp_buf, ":", |
| 867 | sizeof(dsi_display_secondary)); |
| 868 | } |
| 869 | /* Use ':' as a delimiter to retrieve the display name */ |
| 870 | if (!pos) { |
| 871 | pr_debug("display name[%s]is not valid\n", disp_buf); |
| 872 | continue; |
| 873 | } |
| 874 | |
| 875 | for (j = 0; (disp_buf + j) < pos; j++) |
| 876 | boot_displays[i].name[j] = *(disp_buf + j); |
| 877 | boot_displays[i].name[j] = '\0'; |
| 878 | |
| 879 | if (i == DSI_PRIMARY) { |
| 880 | boot_displays[i].is_primary = true; |
| 881 | /* Currently, secondary DSI display is not supported */ |
| 882 | boot_displays[i].boot_disp_en = true; |
| 883 | } |
| 884 | } |
| 885 | return 0; |
| 886 | } |
| 887 | |
| 888 | /** |
| 889 | * validate_dsi_display_selection()- validate boot DSI display selection |
| 890 | * |
| 891 | * Return: returns true when both displays have unique configurations |
| 892 | */ |
| 893 | static bool validate_dsi_display_selection(void) |
| 894 | { |
| 895 | int i, j; |
| 896 | int rc = 0; |
| 897 | int phy_count = 0; |
| 898 | int ctrl_count = 0; |
| 899 | int index = 0; |
| 900 | bool ctrl_flags[MAX_DSI_ACTIVE_DISPLAY] = {false, false}; |
| 901 | bool phy_flags[MAX_DSI_ACTIVE_DISPLAY] = {false, false}; |
| 902 | struct device_node *node, *ctrl_node, *phy_node; |
| 903 | |
| 904 | for (i = 0; i < MAX_DSI_ACTIVE_DISPLAY; i++) { |
| 905 | node = boot_displays[i].node; |
| 906 | ctrl_count = of_count_phandle_with_args(node, "qcom,dsi-ctrl", |
| 907 | NULL); |
| 908 | |
| 909 | for (j = 0; j < ctrl_count; j++) { |
| 910 | ctrl_node = of_parse_phandle(node, "qcom,dsi-ctrl", j); |
| 911 | rc = of_property_read_u32(ctrl_node, "cell-index", |
| 912 | &index); |
| 913 | of_node_put(ctrl_node); |
| 914 | if (rc) { |
| 915 | pr_err("cell index not set for ctrl_nodes\n"); |
| 916 | return false; |
| 917 | } |
| 918 | if (ctrl_flags[index]) |
| 919 | return false; |
| 920 | ctrl_flags[index] = true; |
| 921 | } |
| 922 | |
| 923 | phy_count = of_count_phandle_with_args(node, "qcom,dsi-phy", |
| 924 | NULL); |
| 925 | for (j = 0; j < phy_count; j++) { |
| 926 | phy_node = of_parse_phandle(node, "qcom,dsi-phy", j); |
| 927 | rc = of_property_read_u32(phy_node, "cell-index", |
| 928 | &index); |
| 929 | of_node_put(phy_node); |
| 930 | if (rc) { |
| 931 | pr_err("cell index not set phy_nodes\n"); |
| 932 | return false; |
| 933 | } |
| 934 | if (phy_flags[index]) |
| 935 | return false; |
| 936 | phy_flags[index] = true; |
| 937 | } |
| 938 | } |
| 939 | return true; |
| 940 | } |
| 941 | |
| 942 | struct device_node *dsi_display_get_boot_display(int index) |
| 943 | { |
| 944 | |
| 945 | pr_err("index = %d\n", index); |
| 946 | |
| 947 | if (boot_displays[index].node) |
| 948 | return boot_displays[index].node; |
| 949 | else if ((index == (MAX_DSI_ACTIVE_DISPLAY - 1)) |
| 950 | && (default_active_node)) |
| 951 | return default_active_node; |
| 952 | else |
| 953 | return NULL; |
| 954 | } |
| 955 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 956 | static int dsi_display_phy_power_on(struct dsi_display *display) |
| 957 | { |
| 958 | int rc = 0; |
| 959 | int i; |
| 960 | struct dsi_display_ctrl *ctrl; |
| 961 | |
| 962 | /* Sequence does not matter for split dsi usecases */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 963 | for (i = 0; i < display->ctrl_count; i++) { |
| 964 | ctrl = &display->ctrl[i]; |
| 965 | if (!ctrl->ctrl) |
| 966 | continue; |
| 967 | |
| 968 | rc = dsi_phy_set_power_state(ctrl->phy, true); |
| 969 | if (rc) { |
| 970 | pr_err("[%s] Failed to set power state, rc=%d\n", |
| 971 | ctrl->phy->name, rc); |
| 972 | goto error; |
| 973 | } |
| 974 | } |
| 975 | |
| 976 | return rc; |
| 977 | error: |
| 978 | for (i = i - 1; i >= 0; i--) { |
| 979 | ctrl = &display->ctrl[i]; |
| 980 | if (!ctrl->phy) |
| 981 | continue; |
| 982 | (void)dsi_phy_set_power_state(ctrl->phy, false); |
| 983 | } |
| 984 | return rc; |
| 985 | } |
| 986 | |
| 987 | static int dsi_display_phy_power_off(struct dsi_display *display) |
| 988 | { |
| 989 | int rc = 0; |
| 990 | int i; |
| 991 | struct dsi_display_ctrl *ctrl; |
| 992 | |
| 993 | /* Sequence does not matter for split dsi usecases */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 994 | for (i = 0; i < display->ctrl_count; i++) { |
| 995 | ctrl = &display->ctrl[i]; |
| 996 | if (!ctrl->phy) |
| 997 | continue; |
| 998 | |
| 999 | rc = dsi_phy_set_power_state(ctrl->phy, false); |
| 1000 | if (rc) { |
| 1001 | pr_err("[%s] Failed to power off, rc=%d\n", |
| 1002 | ctrl->ctrl->name, rc); |
| 1003 | goto error; |
| 1004 | } |
| 1005 | } |
| 1006 | error: |
| 1007 | return rc; |
| 1008 | } |
| 1009 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1010 | static int dsi_display_set_clk_src(struct dsi_display *display) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1011 | { |
| 1012 | int rc = 0; |
| 1013 | int i; |
| 1014 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1015 | |
| 1016 | /* |
| 1017 | * In case of split DSI usecases, the clock for master controller should |
| 1018 | * be enabled before the other controller. Master controller in the |
| 1019 | * clock context refers to the controller that sources the clock. |
| 1020 | */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1021 | m_ctrl = &display->ctrl[display->clk_master_idx]; |
| 1022 | |
| 1023 | rc = dsi_ctrl_set_clock_source(m_ctrl->ctrl, |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1024 | &display->clock_info.src_clks); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1025 | if (rc) { |
| 1026 | pr_err("[%s] failed to set source clocks for master, rc=%d\n", |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1027 | display->name, rc); |
| 1028 | return rc; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1029 | } |
| 1030 | |
| 1031 | /* Turn on rest of the controllers */ |
| 1032 | for (i = 0; i < display->ctrl_count; i++) { |
| 1033 | ctrl = &display->ctrl[i]; |
| 1034 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1035 | continue; |
| 1036 | |
| 1037 | rc = dsi_ctrl_set_clock_source(ctrl->ctrl, |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1038 | &display->clock_info.src_clks); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1039 | if (rc) { |
| 1040 | pr_err("[%s] failed to set source clocks, rc=%d\n", |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1041 | display->name, rc); |
| 1042 | return rc; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1043 | } |
| 1044 | } |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1045 | return 0; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1046 | } |
| 1047 | |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 1048 | static int dsi_display_phy_reset_config(struct dsi_display *display, |
| 1049 | bool enable) |
| 1050 | { |
| 1051 | int rc = 0; |
| 1052 | int i; |
| 1053 | struct dsi_display_ctrl *ctrl; |
| 1054 | |
| 1055 | for (i = 0 ; i < display->ctrl_count; i++) { |
| 1056 | ctrl = &display->ctrl[i]; |
| 1057 | rc = dsi_ctrl_phy_reset_config(ctrl->ctrl, enable); |
| 1058 | if (rc) { |
| 1059 | pr_err("[%s] failed to %s phy reset, rc=%d\n", |
| 1060 | display->name, enable ? "mask" : "unmask", rc); |
| 1061 | return rc; |
| 1062 | } |
| 1063 | } |
| 1064 | return 0; |
| 1065 | } |
| 1066 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1067 | static int dsi_display_ctrl_init(struct dsi_display *display) |
| 1068 | { |
| 1069 | int rc = 0; |
| 1070 | int i; |
| 1071 | struct dsi_display_ctrl *ctrl; |
| 1072 | |
| 1073 | for (i = 0 ; i < display->ctrl_count; i++) { |
| 1074 | ctrl = &display->ctrl[i]; |
| 1075 | rc = dsi_ctrl_host_init(ctrl->ctrl); |
| 1076 | if (rc) { |
| 1077 | pr_err("[%s] failed to init host_%d, rc=%d\n", |
| 1078 | display->name, i, rc); |
| 1079 | goto error_host_deinit; |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | return 0; |
| 1084 | error_host_deinit: |
| 1085 | for (i = i - 1; i >= 0; i--) { |
| 1086 | ctrl = &display->ctrl[i]; |
| 1087 | (void)dsi_ctrl_host_deinit(ctrl->ctrl); |
| 1088 | } |
| 1089 | return rc; |
| 1090 | } |
| 1091 | |
| 1092 | static int dsi_display_ctrl_deinit(struct dsi_display *display) |
| 1093 | { |
| 1094 | int rc = 0; |
| 1095 | int i; |
| 1096 | struct dsi_display_ctrl *ctrl; |
| 1097 | |
| 1098 | for (i = 0 ; i < display->ctrl_count; i++) { |
| 1099 | ctrl = &display->ctrl[i]; |
| 1100 | rc = dsi_ctrl_host_deinit(ctrl->ctrl); |
| 1101 | if (rc) { |
| 1102 | pr_err("[%s] failed to deinit host_%d, rc=%d\n", |
| 1103 | display->name, i, rc); |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | return rc; |
| 1108 | } |
| 1109 | |
| 1110 | static int dsi_display_cmd_engine_enable(struct dsi_display *display) |
| 1111 | { |
| 1112 | int rc = 0; |
| 1113 | int i; |
| 1114 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1115 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 1116 | if (display->cmd_engine_refcount > 0) { |
| 1117 | display->cmd_engine_refcount++; |
| 1118 | return 0; |
| 1119 | } |
| 1120 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1121 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1122 | |
| 1123 | rc = dsi_ctrl_set_cmd_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_ON); |
| 1124 | if (rc) { |
| 1125 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 1126 | display->name, rc); |
| 1127 | goto error; |
| 1128 | } |
| 1129 | |
| 1130 | for (i = 0; i < display->ctrl_count; i++) { |
| 1131 | ctrl = &display->ctrl[i]; |
| 1132 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1133 | continue; |
| 1134 | |
| 1135 | rc = dsi_ctrl_set_cmd_engine_state(ctrl->ctrl, |
| 1136 | DSI_CTRL_ENGINE_ON); |
| 1137 | if (rc) { |
| 1138 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 1139 | display->name, rc); |
| 1140 | goto error_disable_master; |
| 1141 | } |
| 1142 | } |
| 1143 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 1144 | display->cmd_engine_refcount++; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1145 | return rc; |
| 1146 | error_disable_master: |
| 1147 | (void)dsi_ctrl_set_cmd_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1148 | error: |
| 1149 | return rc; |
| 1150 | } |
| 1151 | |
| 1152 | static int dsi_display_cmd_engine_disable(struct dsi_display *display) |
| 1153 | { |
| 1154 | int rc = 0; |
| 1155 | int i; |
| 1156 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1157 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 1158 | if (display->cmd_engine_refcount == 0) { |
| 1159 | pr_err("[%s] Invalid refcount\n", display->name); |
| 1160 | return 0; |
| 1161 | } else if (display->cmd_engine_refcount > 1) { |
| 1162 | display->cmd_engine_refcount--; |
| 1163 | return 0; |
| 1164 | } |
| 1165 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1166 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1167 | for (i = 0; i < display->ctrl_count; i++) { |
| 1168 | ctrl = &display->ctrl[i]; |
| 1169 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1170 | continue; |
| 1171 | |
| 1172 | rc = dsi_ctrl_set_cmd_engine_state(ctrl->ctrl, |
| 1173 | DSI_CTRL_ENGINE_OFF); |
| 1174 | if (rc) |
| 1175 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 1176 | display->name, rc); |
| 1177 | } |
| 1178 | |
| 1179 | rc = dsi_ctrl_set_cmd_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1180 | if (rc) { |
| 1181 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 1182 | display->name, rc); |
| 1183 | goto error; |
| 1184 | } |
| 1185 | |
| 1186 | error: |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 1187 | display->cmd_engine_refcount = 0; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1188 | return rc; |
| 1189 | } |
| 1190 | |
| 1191 | static int dsi_display_ctrl_host_enable(struct dsi_display *display) |
| 1192 | { |
| 1193 | int rc = 0; |
| 1194 | int i; |
| 1195 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1196 | |
| 1197 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1198 | |
| 1199 | rc = dsi_ctrl_set_host_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_ON); |
| 1200 | if (rc) { |
| 1201 | pr_err("[%s] failed to enable host engine, rc=%d\n", |
| 1202 | display->name, rc); |
| 1203 | goto error; |
| 1204 | } |
| 1205 | |
| 1206 | for (i = 0; i < display->ctrl_count; i++) { |
| 1207 | ctrl = &display->ctrl[i]; |
| 1208 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1209 | continue; |
| 1210 | |
| 1211 | rc = dsi_ctrl_set_host_engine_state(ctrl->ctrl, |
| 1212 | DSI_CTRL_ENGINE_ON); |
| 1213 | if (rc) { |
| 1214 | pr_err("[%s] failed to enable sl host engine, rc=%d\n", |
| 1215 | display->name, rc); |
| 1216 | goto error_disable_master; |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | return rc; |
| 1221 | error_disable_master: |
| 1222 | (void)dsi_ctrl_set_host_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1223 | error: |
| 1224 | return rc; |
| 1225 | } |
| 1226 | |
| 1227 | static int dsi_display_ctrl_host_disable(struct dsi_display *display) |
| 1228 | { |
| 1229 | int rc = 0; |
| 1230 | int i; |
| 1231 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1232 | |
| 1233 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1234 | for (i = 0; i < display->ctrl_count; i++) { |
| 1235 | ctrl = &display->ctrl[i]; |
| 1236 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1237 | continue; |
| 1238 | |
| 1239 | rc = dsi_ctrl_set_host_engine_state(ctrl->ctrl, |
| 1240 | DSI_CTRL_ENGINE_OFF); |
| 1241 | if (rc) |
| 1242 | pr_err("[%s] failed to disable host engine, rc=%d\n", |
| 1243 | display->name, rc); |
| 1244 | } |
| 1245 | |
| 1246 | rc = dsi_ctrl_set_host_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1247 | if (rc) { |
| 1248 | pr_err("[%s] failed to disable host engine, rc=%d\n", |
| 1249 | display->name, rc); |
| 1250 | goto error; |
| 1251 | } |
| 1252 | |
| 1253 | error: |
| 1254 | return rc; |
| 1255 | } |
| 1256 | |
| 1257 | static int dsi_display_vid_engine_enable(struct dsi_display *display) |
| 1258 | { |
| 1259 | int rc = 0; |
| 1260 | int i; |
| 1261 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1262 | |
| 1263 | m_ctrl = &display->ctrl[display->video_master_idx]; |
| 1264 | |
| 1265 | rc = dsi_ctrl_set_vid_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_ON); |
| 1266 | if (rc) { |
| 1267 | pr_err("[%s] failed to enable vid engine, rc=%d\n", |
| 1268 | display->name, rc); |
| 1269 | goto error; |
| 1270 | } |
| 1271 | |
| 1272 | for (i = 0; i < display->ctrl_count; i++) { |
| 1273 | ctrl = &display->ctrl[i]; |
| 1274 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1275 | continue; |
| 1276 | |
| 1277 | rc = dsi_ctrl_set_vid_engine_state(ctrl->ctrl, |
| 1278 | DSI_CTRL_ENGINE_ON); |
| 1279 | if (rc) { |
| 1280 | pr_err("[%s] failed to enable vid engine, rc=%d\n", |
| 1281 | display->name, rc); |
| 1282 | goto error_disable_master; |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | return rc; |
| 1287 | error_disable_master: |
| 1288 | (void)dsi_ctrl_set_vid_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1289 | error: |
| 1290 | return rc; |
| 1291 | } |
| 1292 | |
| 1293 | static int dsi_display_vid_engine_disable(struct dsi_display *display) |
| 1294 | { |
| 1295 | int rc = 0; |
| 1296 | int i; |
| 1297 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1298 | |
| 1299 | m_ctrl = &display->ctrl[display->video_master_idx]; |
| 1300 | |
| 1301 | for (i = 0; i < display->ctrl_count; i++) { |
| 1302 | ctrl = &display->ctrl[i]; |
| 1303 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1304 | continue; |
| 1305 | |
| 1306 | rc = dsi_ctrl_set_vid_engine_state(ctrl->ctrl, |
| 1307 | DSI_CTRL_ENGINE_OFF); |
| 1308 | if (rc) |
| 1309 | pr_err("[%s] failed to disable vid engine, rc=%d\n", |
| 1310 | display->name, rc); |
| 1311 | } |
| 1312 | |
| 1313 | rc = dsi_ctrl_set_vid_engine_state(m_ctrl->ctrl, DSI_CTRL_ENGINE_OFF); |
| 1314 | if (rc) |
| 1315 | pr_err("[%s] failed to disable mvid engine, rc=%d\n", |
| 1316 | display->name, rc); |
| 1317 | |
| 1318 | return rc; |
| 1319 | } |
| 1320 | |
| 1321 | static int dsi_display_phy_enable(struct dsi_display *display) |
| 1322 | { |
| 1323 | int rc = 0; |
| 1324 | int i; |
| 1325 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1326 | enum dsi_phy_pll_source m_src = DSI_PLL_SOURCE_STANDALONE; |
| 1327 | |
| 1328 | m_ctrl = &display->ctrl[display->clk_master_idx]; |
| 1329 | if (display->ctrl_count > 1) |
| 1330 | m_src = DSI_PLL_SOURCE_NATIVE; |
| 1331 | |
| 1332 | rc = dsi_phy_enable(m_ctrl->phy, |
| 1333 | &display->config, |
| 1334 | m_src, |
| 1335 | true); |
| 1336 | if (rc) { |
| 1337 | pr_err("[%s] failed to enable DSI PHY, rc=%d\n", |
| 1338 | display->name, rc); |
| 1339 | goto error; |
| 1340 | } |
| 1341 | |
| 1342 | for (i = 0; i < display->ctrl_count; i++) { |
| 1343 | ctrl = &display->ctrl[i]; |
| 1344 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1345 | continue; |
| 1346 | |
| 1347 | rc = dsi_phy_enable(ctrl->phy, |
| 1348 | &display->config, |
| 1349 | DSI_PLL_SOURCE_NON_NATIVE, |
| 1350 | true); |
| 1351 | if (rc) { |
| 1352 | pr_err("[%s] failed to enable DSI PHY, rc=%d\n", |
| 1353 | display->name, rc); |
| 1354 | goto error_disable_master; |
| 1355 | } |
| 1356 | } |
| 1357 | |
| 1358 | return rc; |
| 1359 | |
| 1360 | error_disable_master: |
| 1361 | (void)dsi_phy_disable(m_ctrl->phy); |
| 1362 | error: |
| 1363 | return rc; |
| 1364 | } |
| 1365 | |
| 1366 | static int dsi_display_phy_disable(struct dsi_display *display) |
| 1367 | { |
| 1368 | int rc = 0; |
| 1369 | int i; |
| 1370 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1371 | |
| 1372 | m_ctrl = &display->ctrl[display->clk_master_idx]; |
| 1373 | |
| 1374 | for (i = 0; i < display->ctrl_count; i++) { |
| 1375 | ctrl = &display->ctrl[i]; |
| 1376 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1377 | continue; |
| 1378 | |
| 1379 | rc = dsi_phy_disable(ctrl->phy); |
| 1380 | if (rc) |
| 1381 | pr_err("[%s] failed to disable DSI PHY, rc=%d\n", |
| 1382 | display->name, rc); |
| 1383 | } |
| 1384 | |
| 1385 | rc = dsi_phy_disable(m_ctrl->phy); |
| 1386 | if (rc) |
| 1387 | pr_err("[%s] failed to disable DSI PHY, rc=%d\n", |
| 1388 | display->name, rc); |
| 1389 | |
| 1390 | return rc; |
| 1391 | } |
| 1392 | |
| 1393 | static int dsi_display_wake_up(struct dsi_display *display) |
| 1394 | { |
| 1395 | return 0; |
| 1396 | } |
| 1397 | |
| 1398 | static int dsi_display_broadcast_cmd(struct dsi_display *display, |
| 1399 | const struct mipi_dsi_msg *msg) |
| 1400 | { |
| 1401 | int rc = 0; |
| 1402 | u32 flags, m_flags; |
| 1403 | struct dsi_display_ctrl *ctrl, *m_ctrl; |
| 1404 | int i; |
| 1405 | |
| 1406 | m_flags = (DSI_CTRL_CMD_BROADCAST | DSI_CTRL_CMD_BROADCAST_MASTER | |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1407 | DSI_CTRL_CMD_DEFER_TRIGGER | DSI_CTRL_CMD_FETCH_MEMORY); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1408 | flags = (DSI_CTRL_CMD_BROADCAST | DSI_CTRL_CMD_DEFER_TRIGGER | |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1409 | DSI_CTRL_CMD_FETCH_MEMORY); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1410 | |
| 1411 | /* |
| 1412 | * 1. Setup commands in FIFO |
| 1413 | * 2. Trigger commands |
| 1414 | */ |
| 1415 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1416 | rc = dsi_ctrl_cmd_transfer(m_ctrl->ctrl, msg, m_flags); |
| 1417 | if (rc) { |
| 1418 | pr_err("[%s] cmd transfer failed on master,rc=%d\n", |
| 1419 | display->name, rc); |
| 1420 | goto error; |
| 1421 | } |
| 1422 | |
| 1423 | for (i = 0; i < display->ctrl_count; i++) { |
| 1424 | ctrl = &display->ctrl[i]; |
| 1425 | if (ctrl == m_ctrl) |
| 1426 | continue; |
| 1427 | |
| 1428 | rc = dsi_ctrl_cmd_transfer(ctrl->ctrl, msg, flags); |
| 1429 | if (rc) { |
| 1430 | pr_err("[%s] cmd transfer failed, rc=%d\n", |
| 1431 | display->name, rc); |
| 1432 | goto error; |
| 1433 | } |
| 1434 | |
Clarence Ip | 80ada7f | 2017-05-04 09:55:21 -0700 | [diff] [blame] | 1435 | rc = dsi_ctrl_cmd_tx_trigger(ctrl->ctrl, flags); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1436 | if (rc) { |
| 1437 | pr_err("[%s] cmd trigger failed, rc=%d\n", |
| 1438 | display->name, rc); |
| 1439 | goto error; |
| 1440 | } |
| 1441 | } |
| 1442 | |
Clarence Ip | 80ada7f | 2017-05-04 09:55:21 -0700 | [diff] [blame] | 1443 | rc = dsi_ctrl_cmd_tx_trigger(m_ctrl->ctrl, m_flags); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1444 | if (rc) { |
| 1445 | pr_err("[%s] cmd trigger failed for master, rc=%d\n", |
| 1446 | display->name, rc); |
| 1447 | goto error; |
| 1448 | } |
| 1449 | |
| 1450 | error: |
| 1451 | return rc; |
| 1452 | } |
| 1453 | |
| 1454 | static int dsi_display_phy_sw_reset(struct dsi_display *display) |
| 1455 | { |
| 1456 | int rc = 0; |
| 1457 | int i; |
| 1458 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 1459 | |
| 1460 | m_ctrl = &display->ctrl[display->cmd_master_idx]; |
| 1461 | |
| 1462 | rc = dsi_ctrl_phy_sw_reset(m_ctrl->ctrl); |
| 1463 | if (rc) { |
| 1464 | pr_err("[%s] failed to reset phy, rc=%d\n", display->name, rc); |
| 1465 | goto error; |
| 1466 | } |
| 1467 | |
| 1468 | for (i = 0; i < display->ctrl_count; i++) { |
| 1469 | ctrl = &display->ctrl[i]; |
| 1470 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 1471 | continue; |
| 1472 | |
| 1473 | rc = dsi_ctrl_phy_sw_reset(ctrl->ctrl); |
| 1474 | if (rc) { |
| 1475 | pr_err("[%s] failed to reset phy, rc=%d\n", |
| 1476 | display->name, rc); |
| 1477 | goto error; |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | error: |
| 1482 | return rc; |
| 1483 | } |
| 1484 | |
| 1485 | static int dsi_host_attach(struct mipi_dsi_host *host, |
| 1486 | struct mipi_dsi_device *dsi) |
| 1487 | { |
| 1488 | return 0; |
| 1489 | } |
| 1490 | |
| 1491 | static int dsi_host_detach(struct mipi_dsi_host *host, |
| 1492 | struct mipi_dsi_device *dsi) |
| 1493 | { |
| 1494 | return 0; |
| 1495 | } |
| 1496 | |
| 1497 | static ssize_t dsi_host_transfer(struct mipi_dsi_host *host, |
| 1498 | const struct mipi_dsi_msg *msg) |
| 1499 | { |
| 1500 | struct dsi_display *display = to_dsi_display(host); |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1501 | struct dsi_display_ctrl *display_ctrl; |
Jordan Crouse | d8e9652 | 2017-02-13 10:14:16 -0700 | [diff] [blame] | 1502 | struct msm_gem_address_space *aspace = NULL; |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1503 | int rc = 0, cnt = 0; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1504 | |
| 1505 | if (!host || !msg) { |
| 1506 | pr_err("Invalid params\n"); |
| 1507 | return 0; |
| 1508 | } |
| 1509 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1510 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 1511 | DSI_ALL_CLKS, DSI_CLK_ON); |
| 1512 | if (rc) { |
| 1513 | pr_err("[%s] failed to enable all DSI clocks, rc=%d\n", |
| 1514 | display->name, rc); |
| 1515 | goto error; |
| 1516 | } |
| 1517 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1518 | rc = dsi_display_wake_up(display); |
| 1519 | if (rc) { |
| 1520 | pr_err("[%s] failed to wake up display, rc=%d\n", |
| 1521 | display->name, rc); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1522 | goto error_disable_clks; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1523 | } |
| 1524 | |
| 1525 | rc = dsi_display_cmd_engine_enable(display); |
| 1526 | if (rc) { |
| 1527 | pr_err("[%s] failed to enable cmd engine, rc=%d\n", |
| 1528 | display->name, rc); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1529 | goto error_disable_clks; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1530 | } |
| 1531 | |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1532 | if (display->tx_cmd_buf == NULL) { |
| 1533 | mutex_lock(&display->drm_dev->struct_mutex); |
| 1534 | display->tx_cmd_buf = msm_gem_new(display->drm_dev, |
| 1535 | SZ_4K, |
| 1536 | MSM_BO_UNCACHED); |
| 1537 | mutex_unlock(&display->drm_dev->struct_mutex); |
| 1538 | |
| 1539 | display->cmd_buffer_size = SZ_4K; |
| 1540 | |
| 1541 | if ((display->tx_cmd_buf) == NULL) { |
| 1542 | pr_err("value of display->tx_cmd_buf is NULL"); |
| 1543 | goto error_disable_cmd_engine; |
| 1544 | } |
Jordan Crouse | d8e9652 | 2017-02-13 10:14:16 -0700 | [diff] [blame] | 1545 | |
| 1546 | aspace = msm_gem_smmu_address_space_get(display->drm_dev, |
| 1547 | MSM_SMMU_DOMAIN_UNSECURE); |
| 1548 | if (!aspace) { |
| 1549 | pr_err("failed to get aspace\n"); |
| 1550 | rc = -EINVAL; |
| 1551 | goto free_gem; |
| 1552 | } |
| 1553 | |
| 1554 | rc = msm_gem_get_iova(display->tx_cmd_buf, aspace, |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1555 | &(display->cmd_buffer_iova)); |
| 1556 | if (rc) { |
| 1557 | pr_err("failed to get the iova rc %d\n", rc); |
| 1558 | goto free_gem; |
| 1559 | } |
| 1560 | |
| 1561 | display->vaddr = |
| 1562 | (void *) msm_gem_get_vaddr(display->tx_cmd_buf); |
| 1563 | |
| 1564 | if (IS_ERR_OR_NULL(display->vaddr)) { |
| 1565 | pr_err("failed to get va rc %d\n", rc); |
| 1566 | rc = -EINVAL; |
| 1567 | goto put_iova; |
| 1568 | } |
| 1569 | |
| 1570 | for (cnt = 0; cnt < display->ctrl_count; cnt++) { |
| 1571 | display_ctrl = &display->ctrl[cnt]; |
| 1572 | display_ctrl->ctrl->cmd_buffer_size = SZ_4K; |
| 1573 | display_ctrl->ctrl->cmd_buffer_iova = |
| 1574 | display->cmd_buffer_iova; |
| 1575 | display_ctrl->ctrl->vaddr = display->vaddr; |
| 1576 | } |
| 1577 | } |
| 1578 | |
Lloyd Atkinson | 1fde228 | 2017-02-02 16:30:00 -0500 | [diff] [blame] | 1579 | if (display->ctrl_count > 1 && !(msg->flags & MIPI_DSI_MSG_UNICAST)) { |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1580 | rc = dsi_display_broadcast_cmd(display, msg); |
| 1581 | if (rc) { |
| 1582 | pr_err("[%s] cmd broadcast failed, rc=%d\n", |
| 1583 | display->name, rc); |
| 1584 | goto error_disable_cmd_engine; |
| 1585 | } |
| 1586 | } else { |
Lloyd Atkinson | 1fde228 | 2017-02-02 16:30:00 -0500 | [diff] [blame] | 1587 | int ctrl_idx = (msg->flags & MIPI_DSI_MSG_UNICAST) ? |
| 1588 | msg->ctrl : 0; |
| 1589 | |
| 1590 | rc = dsi_ctrl_cmd_transfer(display->ctrl[ctrl_idx].ctrl, msg, |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1591 | DSI_CTRL_CMD_FETCH_MEMORY); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1592 | if (rc) { |
| 1593 | pr_err("[%s] cmd transfer failed, rc=%d\n", |
| 1594 | display->name, rc); |
| 1595 | goto error_disable_cmd_engine; |
| 1596 | } |
| 1597 | } |
Shashank Babu Chinta Venkata | 8210952 | 2017-05-09 18:59:21 -0700 | [diff] [blame] | 1598 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1599 | error_disable_cmd_engine: |
| 1600 | (void)dsi_display_cmd_engine_disable(display); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1601 | error_disable_clks: |
| 1602 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 1603 | DSI_ALL_CLKS, DSI_CLK_OFF); |
| 1604 | if (rc) { |
Vara Reddy | 0fe1684 | 2017-06-01 18:42:45 -0700 | [diff] [blame] | 1605 | pr_err("[%s] failed to disable all DSI clocks, rc=%d\n", |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1606 | display->name, rc); |
| 1607 | } |
Vara Reddy | 0fe1684 | 2017-06-01 18:42:45 -0700 | [diff] [blame] | 1608 | return rc; |
| 1609 | put_iova: |
Jordan Crouse | d8e9652 | 2017-02-13 10:14:16 -0700 | [diff] [blame] | 1610 | msm_gem_put_iova(display->tx_cmd_buf, aspace); |
Vara Reddy | 0fe1684 | 2017-06-01 18:42:45 -0700 | [diff] [blame] | 1611 | free_gem: |
| 1612 | msm_gem_free_object(display->tx_cmd_buf); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1613 | error: |
| 1614 | return rc; |
| 1615 | } |
| 1616 | |
| 1617 | |
| 1618 | static struct mipi_dsi_host_ops dsi_host_ops = { |
| 1619 | .attach = dsi_host_attach, |
| 1620 | .detach = dsi_host_detach, |
| 1621 | .transfer = dsi_host_transfer, |
| 1622 | }; |
| 1623 | |
| 1624 | static int dsi_display_mipi_host_init(struct dsi_display *display) |
| 1625 | { |
| 1626 | int rc = 0; |
| 1627 | struct mipi_dsi_host *host = &display->host; |
| 1628 | |
| 1629 | host->dev = &display->pdev->dev; |
| 1630 | host->ops = &dsi_host_ops; |
| 1631 | |
| 1632 | rc = mipi_dsi_host_register(host); |
| 1633 | if (rc) { |
| 1634 | pr_err("[%s] failed to register mipi dsi host, rc=%d\n", |
| 1635 | display->name, rc); |
| 1636 | goto error; |
| 1637 | } |
| 1638 | |
| 1639 | error: |
| 1640 | return rc; |
| 1641 | } |
| 1642 | static int dsi_display_mipi_host_deinit(struct dsi_display *display) |
| 1643 | { |
| 1644 | int rc = 0; |
| 1645 | struct mipi_dsi_host *host = &display->host; |
| 1646 | |
| 1647 | mipi_dsi_host_unregister(host); |
| 1648 | |
| 1649 | host->dev = NULL; |
| 1650 | host->ops = NULL; |
| 1651 | |
| 1652 | return rc; |
| 1653 | } |
| 1654 | |
| 1655 | static int dsi_display_clocks_deinit(struct dsi_display *display) |
| 1656 | { |
| 1657 | int rc = 0; |
| 1658 | struct dsi_clk_link_set *src = &display->clock_info.src_clks; |
| 1659 | struct dsi_clk_link_set *mux = &display->clock_info.mux_clks; |
| 1660 | struct dsi_clk_link_set *shadow = &display->clock_info.shadow_clks; |
| 1661 | |
| 1662 | if (src->byte_clk) { |
| 1663 | devm_clk_put(&display->pdev->dev, src->byte_clk); |
| 1664 | src->byte_clk = NULL; |
| 1665 | } |
| 1666 | |
| 1667 | if (src->pixel_clk) { |
| 1668 | devm_clk_put(&display->pdev->dev, src->pixel_clk); |
| 1669 | src->pixel_clk = NULL; |
| 1670 | } |
| 1671 | |
| 1672 | if (mux->byte_clk) { |
| 1673 | devm_clk_put(&display->pdev->dev, mux->byte_clk); |
| 1674 | mux->byte_clk = NULL; |
| 1675 | } |
| 1676 | |
| 1677 | if (mux->pixel_clk) { |
| 1678 | devm_clk_put(&display->pdev->dev, mux->pixel_clk); |
| 1679 | mux->pixel_clk = NULL; |
| 1680 | } |
| 1681 | |
| 1682 | if (shadow->byte_clk) { |
| 1683 | devm_clk_put(&display->pdev->dev, shadow->byte_clk); |
| 1684 | shadow->byte_clk = NULL; |
| 1685 | } |
| 1686 | |
| 1687 | if (shadow->pixel_clk) { |
| 1688 | devm_clk_put(&display->pdev->dev, shadow->pixel_clk); |
| 1689 | shadow->pixel_clk = NULL; |
| 1690 | } |
| 1691 | |
| 1692 | return rc; |
| 1693 | } |
| 1694 | |
| 1695 | static int dsi_display_clocks_init(struct dsi_display *display) |
| 1696 | { |
| 1697 | int rc = 0; |
| 1698 | struct dsi_clk_link_set *src = &display->clock_info.src_clks; |
| 1699 | struct dsi_clk_link_set *mux = &display->clock_info.mux_clks; |
| 1700 | struct dsi_clk_link_set *shadow = &display->clock_info.shadow_clks; |
| 1701 | |
| 1702 | src->byte_clk = devm_clk_get(&display->pdev->dev, "src_byte_clk"); |
| 1703 | if (IS_ERR_OR_NULL(src->byte_clk)) { |
| 1704 | rc = PTR_ERR(src->byte_clk); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1705 | src->byte_clk = NULL; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1706 | pr_err("failed to get src_byte_clk, rc=%d\n", rc); |
| 1707 | goto error; |
| 1708 | } |
| 1709 | |
| 1710 | src->pixel_clk = devm_clk_get(&display->pdev->dev, "src_pixel_clk"); |
| 1711 | if (IS_ERR_OR_NULL(src->pixel_clk)) { |
| 1712 | rc = PTR_ERR(src->pixel_clk); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1713 | src->pixel_clk = NULL; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1714 | pr_err("failed to get src_pixel_clk, rc=%d\n", rc); |
| 1715 | goto error; |
| 1716 | } |
| 1717 | |
| 1718 | mux->byte_clk = devm_clk_get(&display->pdev->dev, "mux_byte_clk"); |
| 1719 | if (IS_ERR_OR_NULL(mux->byte_clk)) { |
| 1720 | rc = PTR_ERR(mux->byte_clk); |
Shashank Babu Chinta Venkata | cf41133 | 2017-05-10 17:30:08 -0700 | [diff] [blame] | 1721 | pr_debug("failed to get mux_byte_clk, rc=%d\n", rc); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1722 | mux->byte_clk = NULL; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1723 | /* |
| 1724 | * Skip getting rest of clocks since one failed. This is a |
| 1725 | * non-critical failure since these clocks are requied only for |
| 1726 | * dynamic refresh use cases. |
| 1727 | */ |
| 1728 | rc = 0; |
| 1729 | goto done; |
| 1730 | }; |
| 1731 | |
| 1732 | mux->pixel_clk = devm_clk_get(&display->pdev->dev, "mux_pixel_clk"); |
| 1733 | if (IS_ERR_OR_NULL(mux->pixel_clk)) { |
| 1734 | rc = PTR_ERR(mux->pixel_clk); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1735 | mux->pixel_clk = NULL; |
Shashank Babu Chinta Venkata | cf41133 | 2017-05-10 17:30:08 -0700 | [diff] [blame] | 1736 | pr_debug("failed to get mux_pixel_clk, rc=%d\n", rc); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1737 | /* |
| 1738 | * Skip getting rest of clocks since one failed. This is a |
| 1739 | * non-critical failure since these clocks are requied only for |
| 1740 | * dynamic refresh use cases. |
| 1741 | */ |
| 1742 | rc = 0; |
| 1743 | goto done; |
| 1744 | }; |
| 1745 | |
| 1746 | shadow->byte_clk = devm_clk_get(&display->pdev->dev, "shadow_byte_clk"); |
| 1747 | if (IS_ERR_OR_NULL(shadow->byte_clk)) { |
| 1748 | rc = PTR_ERR(shadow->byte_clk); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1749 | shadow->byte_clk = NULL; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1750 | pr_err("failed to get shadow_byte_clk, rc=%d\n", rc); |
| 1751 | /* |
| 1752 | * Skip getting rest of clocks since one failed. This is a |
| 1753 | * non-critical failure since these clocks are requied only for |
| 1754 | * dynamic refresh use cases. |
| 1755 | */ |
| 1756 | rc = 0; |
| 1757 | goto done; |
| 1758 | }; |
| 1759 | |
| 1760 | shadow->pixel_clk = devm_clk_get(&display->pdev->dev, |
| 1761 | "shadow_pixel_clk"); |
| 1762 | if (IS_ERR_OR_NULL(shadow->pixel_clk)) { |
| 1763 | rc = PTR_ERR(shadow->pixel_clk); |
Lloyd Atkinson | 1be10b6 | 2016-10-04 09:46:08 -0400 | [diff] [blame] | 1764 | shadow->pixel_clk = NULL; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 1765 | pr_err("failed to get shadow_pixel_clk, rc=%d\n", rc); |
| 1766 | /* |
| 1767 | * Skip getting rest of clocks since one failed. This is a |
| 1768 | * non-critical failure since these clocks are requied only for |
| 1769 | * dynamic refresh use cases. |
| 1770 | */ |
| 1771 | rc = 0; |
| 1772 | goto done; |
| 1773 | }; |
| 1774 | |
| 1775 | done: |
| 1776 | return 0; |
| 1777 | error: |
| 1778 | (void)dsi_display_clocks_deinit(display); |
| 1779 | return rc; |
| 1780 | } |
| 1781 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1782 | static int dsi_display_clk_ctrl_cb(void *priv, |
| 1783 | struct dsi_clk_ctrl_info clk_state_info) |
| 1784 | { |
| 1785 | int rc = 0; |
| 1786 | struct dsi_display *display = NULL; |
| 1787 | void *clk_handle = NULL; |
| 1788 | |
| 1789 | if (!priv) { |
| 1790 | pr_err("Invalid params\n"); |
| 1791 | return -EINVAL; |
| 1792 | } |
| 1793 | |
| 1794 | display = priv; |
| 1795 | |
| 1796 | if (clk_state_info.client == DSI_CLK_REQ_MDP_CLIENT) { |
| 1797 | clk_handle = display->mdp_clk_handle; |
| 1798 | } else if (clk_state_info.client == DSI_CLK_REQ_DSI_CLIENT) { |
| 1799 | clk_handle = display->dsi_clk_handle; |
| 1800 | } else { |
| 1801 | pr_err("invalid clk handle, return error\n"); |
| 1802 | return -EINVAL; |
| 1803 | } |
| 1804 | |
| 1805 | /* |
| 1806 | * TODO: Wait for CMD_MDP_DONE interrupt if MDP client tries |
| 1807 | * to turn off DSI clocks. |
| 1808 | */ |
| 1809 | rc = dsi_display_clk_ctrl(clk_handle, |
| 1810 | clk_state_info.clk_type, clk_state_info.clk_state); |
| 1811 | if (rc) { |
| 1812 | pr_err("[%s] failed to %d DSI %d clocks, rc=%d\n", |
| 1813 | display->name, clk_state_info.clk_state, |
| 1814 | clk_state_info.clk_type, rc); |
| 1815 | return rc; |
| 1816 | } |
| 1817 | return 0; |
| 1818 | } |
| 1819 | |
| 1820 | int dsi_pre_clkoff_cb(void *priv, |
| 1821 | enum dsi_clk_type clk, |
| 1822 | enum dsi_clk_state new_state) |
| 1823 | { |
| 1824 | int rc = 0; |
| 1825 | struct dsi_display *display = priv; |
| 1826 | |
| 1827 | if ((clk & DSI_LINK_CLK) && (new_state == DSI_CLK_OFF)) { |
| 1828 | /* |
| 1829 | * If ULPS feature is enabled, enter ULPS first. |
| 1830 | */ |
| 1831 | if (dsi_panel_initialized(display->panel) && |
| 1832 | dsi_panel_ulps_feature_enabled(display->panel)) { |
| 1833 | rc = dsi_display_set_ulps(display, true); |
| 1834 | if (rc) { |
| 1835 | pr_err("%s: failed enable ulps, rc = %d\n", |
| 1836 | __func__, rc); |
| 1837 | } |
| 1838 | } |
| 1839 | } |
| 1840 | |
| 1841 | if ((clk & DSI_CORE_CLK) && (new_state == DSI_CLK_OFF)) { |
| 1842 | /* |
| 1843 | * Enable DSI clamps only if entering idle power collapse. |
| 1844 | */ |
Veera Sundaram Sankaran | bb3680f | 2017-04-21 13:20:46 -0700 | [diff] [blame] | 1845 | if (dsi_panel_initialized(display->panel)) { |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1846 | dsi_display_phy_idle_off(display); |
| 1847 | rc = dsi_display_set_clamp(display, true); |
| 1848 | if (rc) |
| 1849 | pr_err("%s: Failed to enable dsi clamps. rc=%d\n", |
| 1850 | __func__, rc); |
Veera Sundaram Sankaran | 518a863 | 2017-05-01 16:37:55 -0700 | [diff] [blame] | 1851 | |
| 1852 | rc = dsi_display_phy_reset_config(display, false); |
| 1853 | if (rc) |
| 1854 | pr_err("%s: Failed to reset phy, rc=%d\n", |
| 1855 | __func__, rc); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1856 | } else { |
| 1857 | /* Make sure that controller is not in ULPS state when |
| 1858 | * the DSI link is not active. |
| 1859 | */ |
| 1860 | rc = dsi_display_set_ulps(display, false); |
| 1861 | if (rc) |
| 1862 | pr_err("%s: failed to disable ulps. rc=%d\n", |
| 1863 | __func__, rc); |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | return rc; |
| 1868 | } |
| 1869 | |
| 1870 | int dsi_post_clkon_cb(void *priv, |
| 1871 | enum dsi_clk_type clk, |
| 1872 | enum dsi_clk_state curr_state) |
| 1873 | { |
| 1874 | int rc = 0; |
| 1875 | struct dsi_display *display = priv; |
| 1876 | bool mmss_clamp = false; |
| 1877 | |
| 1878 | if (clk & DSI_CORE_CLK) { |
| 1879 | mmss_clamp = display->clamp_enabled; |
| 1880 | /* |
| 1881 | * controller setup is needed if coming out of idle |
| 1882 | * power collapse with clamps enabled. |
| 1883 | */ |
| 1884 | if (mmss_clamp) |
| 1885 | dsi_display_ctrl_setup(display); |
| 1886 | |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 1887 | if (display->ulps_enabled && mmss_clamp) { |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1888 | /* |
| 1889 | * ULPS Entry Request. This is needed if the lanes were |
| 1890 | * in ULPS prior to power collapse, since after |
| 1891 | * power collapse and reset, the DSI controller resets |
| 1892 | * back to idle state and not ULPS. This ulps entry |
| 1893 | * request will transition the state of the DSI |
| 1894 | * controller to ULPS which will match the state of the |
| 1895 | * DSI phy. This needs to be done prior to disabling |
| 1896 | * the DSI clamps. |
| 1897 | * |
| 1898 | * Also, reset the ulps flag so that ulps_config |
| 1899 | * function would reconfigure the controller state to |
| 1900 | * ULPS. |
| 1901 | */ |
| 1902 | display->ulps_enabled = false; |
| 1903 | rc = dsi_display_set_ulps(display, true); |
| 1904 | if (rc) { |
| 1905 | pr_err("%s: Failed to enter ULPS. rc=%d\n", |
| 1906 | __func__, rc); |
| 1907 | goto error; |
| 1908 | } |
| 1909 | } |
| 1910 | |
Veera Sundaram Sankaran | 518a863 | 2017-05-01 16:37:55 -0700 | [diff] [blame] | 1911 | rc = dsi_display_phy_reset_config(display, true); |
| 1912 | if (rc) { |
| 1913 | pr_err("%s: Failed to reset phy, rc=%d\n", |
| 1914 | __func__, rc); |
| 1915 | goto error; |
| 1916 | } |
| 1917 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 1918 | rc = dsi_display_set_clamp(display, false); |
| 1919 | if (rc) { |
| 1920 | pr_err("%s: Failed to disable dsi clamps. rc=%d\n", |
| 1921 | __func__, rc); |
| 1922 | goto error; |
| 1923 | } |
| 1924 | |
| 1925 | /* |
| 1926 | * Phy setup is needed if coming out of idle |
| 1927 | * power collapse with clamps enabled. |
| 1928 | */ |
| 1929 | if (display->phy_idle_power_off || mmss_clamp) |
| 1930 | dsi_display_phy_idle_on(display, mmss_clamp); |
| 1931 | } |
| 1932 | if (clk & DSI_LINK_CLK) { |
| 1933 | if (display->ulps_enabled) { |
| 1934 | rc = dsi_display_set_ulps(display, false); |
| 1935 | if (rc) { |
| 1936 | pr_err("%s: failed to disable ulps, rc= %d\n", |
| 1937 | __func__, rc); |
| 1938 | goto error; |
| 1939 | } |
| 1940 | } |
| 1941 | } |
| 1942 | error: |
| 1943 | return rc; |
| 1944 | } |
| 1945 | |
| 1946 | int dsi_post_clkoff_cb(void *priv, |
| 1947 | enum dsi_clk_type clk_type, |
| 1948 | enum dsi_clk_state curr_state) |
| 1949 | { |
| 1950 | int rc = 0; |
| 1951 | struct dsi_display *display = priv; |
| 1952 | |
| 1953 | if (!display) { |
| 1954 | pr_err("%s: Invalid arg\n", __func__); |
| 1955 | return -EINVAL; |
| 1956 | } |
| 1957 | |
| 1958 | if ((clk_type & DSI_CORE_CLK) && |
| 1959 | (curr_state == DSI_CLK_OFF)) { |
| 1960 | |
| 1961 | rc = dsi_display_phy_power_off(display); |
| 1962 | if (rc) |
| 1963 | pr_err("[%s] failed to power off PHY, rc=%d\n", |
| 1964 | display->name, rc); |
| 1965 | |
| 1966 | rc = dsi_display_ctrl_power_off(display); |
| 1967 | if (rc) |
| 1968 | pr_err("[%s] failed to power DSI vregs, rc=%d\n", |
| 1969 | display->name, rc); |
| 1970 | } |
| 1971 | return rc; |
| 1972 | } |
| 1973 | |
| 1974 | int dsi_pre_clkon_cb(void *priv, |
| 1975 | enum dsi_clk_type clk_type, |
| 1976 | enum dsi_clk_state new_state) |
| 1977 | { |
| 1978 | int rc = 0; |
| 1979 | struct dsi_display *display = priv; |
| 1980 | |
| 1981 | if (!display) { |
| 1982 | pr_err("%s: invalid input\n", __func__); |
| 1983 | return -EINVAL; |
| 1984 | } |
| 1985 | |
| 1986 | if ((clk_type & DSI_CORE_CLK) && (new_state == DSI_CLK_ON)) { |
| 1987 | /* |
| 1988 | * Enable DSI core power |
| 1989 | * 1.> PANEL_PM are controlled as part of |
| 1990 | * panel_power_ctrl. Needed not be handled here. |
| 1991 | * 2.> CORE_PM are controlled by dsi clk manager. |
| 1992 | * 3.> CTRL_PM need to be enabled/disabled |
| 1993 | * only during unblank/blank. Their state should |
| 1994 | * not be changed during static screen. |
| 1995 | */ |
| 1996 | |
| 1997 | rc = dsi_display_ctrl_power_on(display); |
| 1998 | if (rc) { |
| 1999 | pr_err("[%s] failed to power on dsi controllers, rc=%d\n", |
| 2000 | display->name, rc); |
| 2001 | return rc; |
| 2002 | } |
| 2003 | |
| 2004 | rc = dsi_display_phy_power_on(display); |
| 2005 | if (rc) { |
| 2006 | pr_err("[%s] failed to power on dsi phy, rc = %d\n", |
| 2007 | display->name, rc); |
| 2008 | return rc; |
| 2009 | } |
| 2010 | |
| 2011 | pr_debug("%s: Enable DSI core power\n", __func__); |
| 2012 | } |
| 2013 | |
| 2014 | return rc; |
| 2015 | } |
| 2016 | |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 2017 | static void __set_lane_map_v2(u8 *lane_map_v2, |
| 2018 | enum dsi_phy_data_lanes lane0, |
| 2019 | enum dsi_phy_data_lanes lane1, |
| 2020 | enum dsi_phy_data_lanes lane2, |
| 2021 | enum dsi_phy_data_lanes lane3) |
| 2022 | { |
| 2023 | lane_map_v2[DSI_LOGICAL_LANE_0] = lane0; |
| 2024 | lane_map_v2[DSI_LOGICAL_LANE_1] = lane1; |
| 2025 | lane_map_v2[DSI_LOGICAL_LANE_2] = lane2; |
| 2026 | lane_map_v2[DSI_LOGICAL_LANE_3] = lane3; |
| 2027 | } |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2028 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2029 | static int dsi_display_parse_lane_map(struct dsi_display *display) |
| 2030 | { |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 2031 | int rc = 0, i = 0; |
| 2032 | const char *data; |
| 2033 | u8 temp[DSI_LANE_MAX - 1]; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2034 | |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 2035 | if (!display) { |
| 2036 | pr_err("invalid params\n"); |
| 2037 | return -EINVAL; |
| 2038 | } |
| 2039 | |
| 2040 | /* lane-map-v2 supersedes lane-map-v1 setting */ |
| 2041 | rc = of_property_read_u8_array(display->pdev->dev.of_node, |
| 2042 | "qcom,lane-map-v2", temp, (DSI_LANE_MAX - 1)); |
| 2043 | if (!rc) { |
| 2044 | for (i = DSI_LOGICAL_LANE_0; i < (DSI_LANE_MAX - 1); i++) |
| 2045 | display->lane_map.lane_map_v2[i] = BIT(temp[i]); |
| 2046 | return 0; |
| 2047 | } else if (rc != EINVAL) { |
Shashank Babu Chinta Venkata | cf41133 | 2017-05-10 17:30:08 -0700 | [diff] [blame] | 2048 | pr_debug("Incorrect mapping, configure default\n"); |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 2049 | goto set_default; |
| 2050 | } |
| 2051 | |
| 2052 | /* lane-map older version, for DSI controller version < 2.0 */ |
| 2053 | data = of_get_property(display->pdev->dev.of_node, |
| 2054 | "qcom,lane-map", NULL); |
| 2055 | if (!data) |
| 2056 | goto set_default; |
| 2057 | |
| 2058 | if (!strcmp(data, "lane_map_3012")) { |
| 2059 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_3012; |
| 2060 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2061 | DSI_PHYSICAL_LANE_1, |
| 2062 | DSI_PHYSICAL_LANE_2, |
| 2063 | DSI_PHYSICAL_LANE_3, |
| 2064 | DSI_PHYSICAL_LANE_0); |
| 2065 | } else if (!strcmp(data, "lane_map_2301")) { |
| 2066 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_2301; |
| 2067 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2068 | DSI_PHYSICAL_LANE_2, |
| 2069 | DSI_PHYSICAL_LANE_3, |
| 2070 | DSI_PHYSICAL_LANE_0, |
| 2071 | DSI_PHYSICAL_LANE_1); |
| 2072 | } else if (!strcmp(data, "lane_map_1230")) { |
| 2073 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_1230; |
| 2074 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2075 | DSI_PHYSICAL_LANE_3, |
| 2076 | DSI_PHYSICAL_LANE_0, |
| 2077 | DSI_PHYSICAL_LANE_1, |
| 2078 | DSI_PHYSICAL_LANE_2); |
| 2079 | } else if (!strcmp(data, "lane_map_0321")) { |
| 2080 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_0321; |
| 2081 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2082 | DSI_PHYSICAL_LANE_0, |
| 2083 | DSI_PHYSICAL_LANE_3, |
| 2084 | DSI_PHYSICAL_LANE_2, |
| 2085 | DSI_PHYSICAL_LANE_1); |
| 2086 | } else if (!strcmp(data, "lane_map_1032")) { |
| 2087 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_1032; |
| 2088 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2089 | DSI_PHYSICAL_LANE_1, |
| 2090 | DSI_PHYSICAL_LANE_0, |
| 2091 | DSI_PHYSICAL_LANE_3, |
| 2092 | DSI_PHYSICAL_LANE_2); |
| 2093 | } else if (!strcmp(data, "lane_map_2103")) { |
| 2094 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_2103; |
| 2095 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2096 | DSI_PHYSICAL_LANE_2, |
| 2097 | DSI_PHYSICAL_LANE_1, |
| 2098 | DSI_PHYSICAL_LANE_0, |
| 2099 | DSI_PHYSICAL_LANE_3); |
| 2100 | } else if (!strcmp(data, "lane_map_3210")) { |
| 2101 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_3210; |
| 2102 | __set_lane_map_v2(display->lane_map.lane_map_v2, |
| 2103 | DSI_PHYSICAL_LANE_3, |
| 2104 | DSI_PHYSICAL_LANE_2, |
| 2105 | DSI_PHYSICAL_LANE_1, |
| 2106 | DSI_PHYSICAL_LANE_0); |
| 2107 | } else { |
| 2108 | pr_warn("%s: invalid lane map %s specified. defaulting to lane_map0123\n", |
| 2109 | __func__, data); |
| 2110 | goto set_default; |
| 2111 | } |
| 2112 | return 0; |
| 2113 | |
| 2114 | set_default: |
| 2115 | /* default lane mapping */ |
| 2116 | __set_lane_map_v2(display->lane_map.lane_map_v2, DSI_PHYSICAL_LANE_0, |
| 2117 | DSI_PHYSICAL_LANE_1, DSI_PHYSICAL_LANE_2, DSI_PHYSICAL_LANE_3); |
| 2118 | display->lane_map.lane_map_v1 = DSI_LANE_MAP_0123; |
| 2119 | return 0; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2120 | } |
| 2121 | |
| 2122 | static int dsi_display_parse_dt(struct dsi_display *display) |
| 2123 | { |
| 2124 | int rc = 0; |
| 2125 | int i; |
| 2126 | u32 phy_count = 0; |
| 2127 | struct device_node *of_node; |
| 2128 | |
| 2129 | /* Parse controllers */ |
| 2130 | for (i = 0; i < MAX_DSI_CTRLS_PER_DISPLAY; i++) { |
| 2131 | of_node = of_parse_phandle(display->pdev->dev.of_node, |
| 2132 | "qcom,dsi-ctrl", i); |
| 2133 | if (!of_node) { |
| 2134 | if (!i) { |
| 2135 | pr_err("No controllers present\n"); |
| 2136 | return -ENODEV; |
| 2137 | } |
| 2138 | break; |
| 2139 | } |
| 2140 | |
| 2141 | display->ctrl[i].ctrl_of_node = of_node; |
| 2142 | display->ctrl_count++; |
| 2143 | } |
| 2144 | |
| 2145 | /* Parse Phys */ |
| 2146 | for (i = 0; i < MAX_DSI_CTRLS_PER_DISPLAY; i++) { |
| 2147 | of_node = of_parse_phandle(display->pdev->dev.of_node, |
| 2148 | "qcom,dsi-phy", i); |
| 2149 | if (!of_node) { |
| 2150 | if (!i) { |
| 2151 | pr_err("No PHY devices present\n"); |
| 2152 | rc = -ENODEV; |
| 2153 | goto error; |
| 2154 | } |
| 2155 | break; |
| 2156 | } |
| 2157 | |
| 2158 | display->ctrl[i].phy_of_node = of_node; |
| 2159 | phy_count++; |
| 2160 | } |
| 2161 | |
| 2162 | if (phy_count != display->ctrl_count) { |
| 2163 | pr_err("Number of controllers does not match PHYs\n"); |
| 2164 | rc = -ENODEV; |
| 2165 | goto error; |
| 2166 | } |
| 2167 | |
| 2168 | of_node = of_parse_phandle(display->pdev->dev.of_node, |
| 2169 | "qcom,dsi-panel", 0); |
| 2170 | if (!of_node) { |
| 2171 | pr_err("No Panel device present\n"); |
| 2172 | rc = -ENODEV; |
| 2173 | goto error; |
| 2174 | } else { |
| 2175 | display->panel_of = of_node; |
| 2176 | } |
| 2177 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2178 | error: |
| 2179 | return rc; |
| 2180 | } |
| 2181 | |
| 2182 | static int dsi_display_res_init(struct dsi_display *display) |
| 2183 | { |
| 2184 | int rc = 0; |
| 2185 | int i; |
| 2186 | struct dsi_display_ctrl *ctrl; |
| 2187 | |
| 2188 | for (i = 0; i < display->ctrl_count; i++) { |
| 2189 | ctrl = &display->ctrl[i]; |
| 2190 | ctrl->ctrl = dsi_ctrl_get(ctrl->ctrl_of_node); |
| 2191 | if (IS_ERR_OR_NULL(ctrl->ctrl)) { |
| 2192 | rc = PTR_ERR(ctrl->ctrl); |
| 2193 | pr_err("failed to get dsi controller, rc=%d\n", rc); |
| 2194 | ctrl->ctrl = NULL; |
| 2195 | goto error_ctrl_put; |
| 2196 | } |
| 2197 | |
| 2198 | ctrl->phy = dsi_phy_get(ctrl->phy_of_node); |
| 2199 | if (IS_ERR_OR_NULL(ctrl->phy)) { |
| 2200 | rc = PTR_ERR(ctrl->phy); |
| 2201 | pr_err("failed to get phy controller, rc=%d\n", rc); |
| 2202 | dsi_ctrl_put(ctrl->ctrl); |
| 2203 | ctrl->phy = NULL; |
| 2204 | goto error_ctrl_put; |
| 2205 | } |
| 2206 | } |
| 2207 | |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 2208 | display->panel = dsi_panel_get(&display->pdev->dev, display->panel_of, |
| 2209 | display->cmdline_topology); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2210 | if (IS_ERR_OR_NULL(display->panel)) { |
| 2211 | rc = PTR_ERR(display->panel); |
| 2212 | pr_err("failed to get panel, rc=%d\n", rc); |
| 2213 | display->panel = NULL; |
| 2214 | goto error_ctrl_put; |
| 2215 | } |
| 2216 | |
Padmanabhan Komanduru | ee89d21 | 2016-12-19 12:51:31 +0530 | [diff] [blame] | 2217 | if (display->panel->phy_timing_len) { |
| 2218 | for (i = 0; i < display->ctrl_count; i++) { |
| 2219 | ctrl = &display->ctrl[i]; |
| 2220 | rc = dsi_phy_set_timing_params(ctrl->phy, |
| 2221 | display->panel->phy_timing_val, |
| 2222 | display->panel->phy_timing_len); |
| 2223 | if (rc) |
| 2224 | pr_err("failed to add DSI PHY timing params"); |
| 2225 | } |
| 2226 | } |
| 2227 | |
Padmanabhan Komanduru | 8ee8ee5 | 2016-12-19 12:10:51 +0530 | [diff] [blame] | 2228 | rc = dsi_display_parse_lane_map(display); |
| 2229 | if (rc) { |
| 2230 | pr_err("Lane map not found, rc=%d\n", rc); |
| 2231 | goto error_ctrl_put; |
| 2232 | } |
| 2233 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2234 | rc = dsi_display_clocks_init(display); |
| 2235 | if (rc) { |
| 2236 | pr_err("Failed to parse clock data, rc=%d\n", rc); |
| 2237 | goto error_ctrl_put; |
| 2238 | } |
| 2239 | |
| 2240 | return 0; |
| 2241 | error_ctrl_put: |
| 2242 | for (i = i - 1; i >= 0; i--) { |
| 2243 | ctrl = &display->ctrl[i]; |
| 2244 | dsi_ctrl_put(ctrl->ctrl); |
| 2245 | dsi_phy_put(ctrl->phy); |
| 2246 | } |
| 2247 | return rc; |
| 2248 | } |
| 2249 | |
| 2250 | static int dsi_display_res_deinit(struct dsi_display *display) |
| 2251 | { |
| 2252 | int rc = 0; |
| 2253 | int i; |
| 2254 | struct dsi_display_ctrl *ctrl; |
| 2255 | |
| 2256 | rc = dsi_display_clocks_deinit(display); |
| 2257 | if (rc) |
| 2258 | pr_err("clocks deinit failed, rc=%d\n", rc); |
| 2259 | |
| 2260 | for (i = 0; i < display->ctrl_count; i++) { |
| 2261 | ctrl = &display->ctrl[i]; |
| 2262 | dsi_phy_put(ctrl->phy); |
| 2263 | dsi_ctrl_put(ctrl->ctrl); |
| 2264 | } |
| 2265 | |
| 2266 | return rc; |
| 2267 | } |
| 2268 | |
| 2269 | static int dsi_display_validate_mode_set(struct dsi_display *display, |
| 2270 | struct dsi_display_mode *mode, |
| 2271 | u32 flags) |
| 2272 | { |
| 2273 | int rc = 0; |
| 2274 | int i; |
| 2275 | struct dsi_display_ctrl *ctrl; |
| 2276 | |
| 2277 | /* |
| 2278 | * To set a mode: |
| 2279 | * 1. Controllers should be turned off. |
| 2280 | * 2. Link clocks should be off. |
| 2281 | * 3. Phy should be disabled. |
| 2282 | */ |
| 2283 | |
| 2284 | for (i = 0; i < display->ctrl_count; i++) { |
| 2285 | ctrl = &display->ctrl[i]; |
| 2286 | if ((ctrl->power_state > DSI_CTRL_POWER_VREG_ON) || |
| 2287 | (ctrl->phy_enabled)) { |
| 2288 | rc = -EINVAL; |
| 2289 | goto error; |
| 2290 | } |
| 2291 | } |
| 2292 | |
| 2293 | error: |
| 2294 | return rc; |
| 2295 | } |
| 2296 | |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2297 | static bool dsi_display_is_seamless_dfps_possible( |
| 2298 | const struct dsi_display *display, |
| 2299 | const struct dsi_display_mode *tgt, |
| 2300 | const enum dsi_dfps_type dfps_type) |
| 2301 | { |
| 2302 | struct dsi_display_mode *cur; |
| 2303 | |
| 2304 | if (!display || !tgt) { |
| 2305 | pr_err("Invalid params\n"); |
| 2306 | return false; |
| 2307 | } |
| 2308 | |
| 2309 | cur = &display->panel->mode; |
| 2310 | |
| 2311 | if (cur->timing.h_active != tgt->timing.h_active) { |
| 2312 | pr_debug("timing.h_active differs %d %d\n", |
| 2313 | cur->timing.h_active, tgt->timing.h_active); |
| 2314 | return false; |
| 2315 | } |
| 2316 | |
| 2317 | if (cur->timing.h_back_porch != tgt->timing.h_back_porch) { |
| 2318 | pr_debug("timing.h_back_porch differs %d %d\n", |
| 2319 | cur->timing.h_back_porch, |
| 2320 | tgt->timing.h_back_porch); |
| 2321 | return false; |
| 2322 | } |
| 2323 | |
| 2324 | if (cur->timing.h_sync_width != tgt->timing.h_sync_width) { |
| 2325 | pr_debug("timing.h_sync_width differs %d %d\n", |
| 2326 | cur->timing.h_sync_width, |
| 2327 | tgt->timing.h_sync_width); |
| 2328 | return false; |
| 2329 | } |
| 2330 | |
| 2331 | if (cur->timing.h_front_porch != tgt->timing.h_front_porch) { |
| 2332 | pr_debug("timing.h_front_porch differs %d %d\n", |
| 2333 | cur->timing.h_front_porch, |
| 2334 | tgt->timing.h_front_porch); |
| 2335 | if (dfps_type != DSI_DFPS_IMMEDIATE_HFP) |
| 2336 | return false; |
| 2337 | } |
| 2338 | |
| 2339 | if (cur->timing.h_skew != tgt->timing.h_skew) { |
| 2340 | pr_debug("timing.h_skew differs %d %d\n", |
| 2341 | cur->timing.h_skew, |
| 2342 | tgt->timing.h_skew); |
| 2343 | return false; |
| 2344 | } |
| 2345 | |
| 2346 | /* skip polarity comparison */ |
| 2347 | |
| 2348 | if (cur->timing.v_active != tgt->timing.v_active) { |
| 2349 | pr_debug("timing.v_active differs %d %d\n", |
| 2350 | cur->timing.v_active, |
| 2351 | tgt->timing.v_active); |
| 2352 | return false; |
| 2353 | } |
| 2354 | |
| 2355 | if (cur->timing.v_back_porch != tgt->timing.v_back_porch) { |
| 2356 | pr_debug("timing.v_back_porch differs %d %d\n", |
| 2357 | cur->timing.v_back_porch, |
| 2358 | tgt->timing.v_back_porch); |
| 2359 | return false; |
| 2360 | } |
| 2361 | |
| 2362 | if (cur->timing.v_sync_width != tgt->timing.v_sync_width) { |
| 2363 | pr_debug("timing.v_sync_width differs %d %d\n", |
| 2364 | cur->timing.v_sync_width, |
| 2365 | tgt->timing.v_sync_width); |
| 2366 | return false; |
| 2367 | } |
| 2368 | |
| 2369 | if (cur->timing.v_front_porch != tgt->timing.v_front_porch) { |
| 2370 | pr_debug("timing.v_front_porch differs %d %d\n", |
| 2371 | cur->timing.v_front_porch, |
| 2372 | tgt->timing.v_front_porch); |
| 2373 | if (dfps_type != DSI_DFPS_IMMEDIATE_VFP) |
| 2374 | return false; |
| 2375 | } |
| 2376 | |
| 2377 | /* skip polarity comparison */ |
| 2378 | |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2379 | if (cur->timing.refresh_rate == tgt->timing.refresh_rate) |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2380 | pr_debug("timing.refresh_rate identical %d %d\n", |
| 2381 | cur->timing.refresh_rate, |
| 2382 | tgt->timing.refresh_rate); |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2383 | |
| 2384 | if (cur->pixel_clk_khz != tgt->pixel_clk_khz) |
| 2385 | pr_debug("pixel_clk_khz differs %d %d\n", |
| 2386 | cur->pixel_clk_khz, tgt->pixel_clk_khz); |
| 2387 | |
| 2388 | if (cur->panel_mode != tgt->panel_mode) { |
| 2389 | pr_debug("panel_mode differs %d %d\n", |
| 2390 | cur->panel_mode, tgt->panel_mode); |
| 2391 | return false; |
| 2392 | } |
| 2393 | |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2394 | if (cur->dsi_mode_flags != tgt->dsi_mode_flags) |
| 2395 | pr_debug("flags differs %d %d\n", |
| 2396 | cur->dsi_mode_flags, tgt->dsi_mode_flags); |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2397 | |
| 2398 | return true; |
| 2399 | } |
| 2400 | |
| 2401 | static int dsi_display_dfps_update(struct dsi_display *display, |
| 2402 | struct dsi_display_mode *dsi_mode) |
| 2403 | { |
| 2404 | struct dsi_mode_info *timing; |
| 2405 | struct dsi_display_ctrl *m_ctrl, *ctrl; |
| 2406 | struct dsi_display_mode *panel_mode; |
| 2407 | struct dsi_dfps_capabilities dfps_caps; |
| 2408 | int rc = 0; |
Channagoud Kadabi | 075db3b | 2017-03-16 14:26:17 -0700 | [diff] [blame] | 2409 | int i = 0; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2410 | |
| 2411 | if (!display || !dsi_mode) { |
| 2412 | pr_err("Invalid params\n"); |
| 2413 | return -EINVAL; |
| 2414 | } |
| 2415 | timing = &dsi_mode->timing; |
| 2416 | |
| 2417 | dsi_panel_get_dfps_caps(display->panel, &dfps_caps); |
| 2418 | if (!dfps_caps.dfps_support) { |
| 2419 | pr_err("dfps not supported\n"); |
| 2420 | return -ENOTSUPP; |
| 2421 | } |
| 2422 | |
| 2423 | if (dfps_caps.type == DSI_DFPS_IMMEDIATE_CLK) { |
| 2424 | pr_err("dfps clock method not supported\n"); |
| 2425 | return -ENOTSUPP; |
| 2426 | } |
| 2427 | |
| 2428 | /* For split DSI, update the clock master first */ |
| 2429 | |
| 2430 | pr_debug("configuring seamless dynamic fps\n\n"); |
| 2431 | |
| 2432 | m_ctrl = &display->ctrl[display->clk_master_idx]; |
| 2433 | rc = dsi_ctrl_async_timing_update(m_ctrl->ctrl, timing); |
| 2434 | if (rc) { |
| 2435 | pr_err("[%s] failed to dfps update host_%d, rc=%d\n", |
| 2436 | display->name, i, rc); |
| 2437 | goto error; |
| 2438 | } |
| 2439 | |
| 2440 | /* Update the rest of the controllers */ |
| 2441 | for (i = 0; i < display->ctrl_count; i++) { |
| 2442 | ctrl = &display->ctrl[i]; |
| 2443 | if (!ctrl->ctrl || (ctrl == m_ctrl)) |
| 2444 | continue; |
| 2445 | |
| 2446 | rc = dsi_ctrl_async_timing_update(ctrl->ctrl, timing); |
| 2447 | if (rc) { |
| 2448 | pr_err("[%s] failed to dfps update host_%d, rc=%d\n", |
| 2449 | display->name, i, rc); |
| 2450 | goto error; |
| 2451 | } |
| 2452 | } |
| 2453 | |
| 2454 | panel_mode = &display->panel->mode; |
| 2455 | memcpy(panel_mode, dsi_mode, sizeof(*panel_mode)); |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2456 | /* |
| 2457 | * dsi_mode_flags flags are used to communicate with other drm driver |
| 2458 | * components, and are transient. They aren't inherently part of the |
| 2459 | * display panel's mode and shouldn't be saved into the cached currently |
| 2460 | * active mode. |
| 2461 | */ |
| 2462 | panel_mode->dsi_mode_flags = 0; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2463 | |
| 2464 | error: |
| 2465 | return rc; |
| 2466 | } |
| 2467 | |
| 2468 | static int dsi_display_dfps_calc_front_porch( |
| 2469 | u64 clk_hz, |
| 2470 | u32 new_fps, |
| 2471 | u32 a_total, |
| 2472 | u32 b_total, |
| 2473 | u32 b_fp, |
| 2474 | u32 *b_fp_out) |
| 2475 | { |
| 2476 | s32 b_fp_new; |
| 2477 | |
| 2478 | if (!b_fp_out) { |
| 2479 | pr_err("Invalid params"); |
| 2480 | return -EINVAL; |
| 2481 | } |
| 2482 | |
| 2483 | if (!a_total || !new_fps) { |
| 2484 | pr_err("Invalid pixel total or new fps in mode request\n"); |
| 2485 | return -EINVAL; |
| 2486 | } |
| 2487 | |
| 2488 | /** |
| 2489 | * Keep clock, other porches constant, use new fps, calc front porch |
| 2490 | * clk = (hor * ver * fps) |
| 2491 | * hfront = clk / (vtotal * fps)) - hactive - hback - hsync |
| 2492 | */ |
| 2493 | b_fp_new = (clk_hz / (a_total * new_fps)) - (b_total - b_fp); |
| 2494 | |
| 2495 | pr_debug("clk %llu fps %u a %u b %u b_fp %u new_fp %d\n", |
| 2496 | clk_hz, new_fps, a_total, b_total, b_fp, b_fp_new); |
| 2497 | |
| 2498 | if (b_fp_new < 0) { |
| 2499 | pr_err("Invalid new_hfp calcluated%d\n", b_fp_new); |
| 2500 | return -EINVAL; |
| 2501 | } |
| 2502 | |
| 2503 | /** |
| 2504 | * TODO: To differentiate from clock method when communicating to the |
| 2505 | * other components, perhaps we should set clk here to original value |
| 2506 | */ |
| 2507 | *b_fp_out = b_fp_new; |
| 2508 | |
| 2509 | return 0; |
| 2510 | } |
| 2511 | |
| 2512 | static int dsi_display_get_dfps_timing(struct dsi_display *display, |
| 2513 | struct dsi_display_mode *adj_mode) |
| 2514 | { |
| 2515 | struct dsi_dfps_capabilities dfps_caps; |
| 2516 | struct dsi_display_mode per_ctrl_mode; |
| 2517 | struct dsi_mode_info *timing; |
| 2518 | struct dsi_ctrl *m_ctrl; |
| 2519 | u64 clk_hz; |
| 2520 | |
| 2521 | int rc = 0; |
| 2522 | |
| 2523 | if (!display || !adj_mode) { |
| 2524 | pr_err("Invalid params\n"); |
| 2525 | return -EINVAL; |
| 2526 | } |
| 2527 | m_ctrl = display->ctrl[display->clk_master_idx].ctrl; |
| 2528 | |
| 2529 | dsi_panel_get_dfps_caps(display->panel, &dfps_caps); |
| 2530 | if (!dfps_caps.dfps_support) { |
| 2531 | pr_err("dfps not supported by panel\n"); |
| 2532 | return -EINVAL; |
| 2533 | } |
| 2534 | |
| 2535 | per_ctrl_mode = *adj_mode; |
| 2536 | adjust_timing_by_ctrl_count(display, &per_ctrl_mode); |
| 2537 | |
| 2538 | if (!dsi_display_is_seamless_dfps_possible(display, |
| 2539 | &per_ctrl_mode, dfps_caps.type)) { |
| 2540 | pr_err("seamless dynamic fps not supported for mode\n"); |
| 2541 | return -EINVAL; |
| 2542 | } |
| 2543 | |
| 2544 | /* TODO: Remove this direct reference to the dsi_ctrl */ |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2545 | clk_hz = m_ctrl->clk_freq.pix_clk_rate; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2546 | timing = &per_ctrl_mode.timing; |
| 2547 | |
| 2548 | switch (dfps_caps.type) { |
| 2549 | case DSI_DFPS_IMMEDIATE_VFP: |
| 2550 | rc = dsi_display_dfps_calc_front_porch( |
| 2551 | clk_hz, |
| 2552 | timing->refresh_rate, |
| 2553 | DSI_H_TOTAL(timing), |
| 2554 | DSI_V_TOTAL(timing), |
| 2555 | timing->v_front_porch, |
| 2556 | &adj_mode->timing.v_front_porch); |
| 2557 | break; |
| 2558 | |
| 2559 | case DSI_DFPS_IMMEDIATE_HFP: |
| 2560 | rc = dsi_display_dfps_calc_front_porch( |
| 2561 | clk_hz, |
| 2562 | timing->refresh_rate, |
| 2563 | DSI_V_TOTAL(timing), |
| 2564 | DSI_H_TOTAL(timing), |
| 2565 | timing->h_front_porch, |
| 2566 | &adj_mode->timing.h_front_porch); |
| 2567 | if (!rc) |
| 2568 | adj_mode->timing.h_front_porch *= display->ctrl_count; |
| 2569 | break; |
| 2570 | |
| 2571 | default: |
| 2572 | pr_err("Unsupported DFPS mode %d\n", dfps_caps.type); |
| 2573 | rc = -ENOTSUPP; |
| 2574 | } |
| 2575 | |
| 2576 | return rc; |
| 2577 | } |
| 2578 | |
| 2579 | static bool dsi_display_validate_mode_seamless(struct dsi_display *display, |
| 2580 | struct dsi_display_mode *adj_mode) |
| 2581 | { |
| 2582 | int rc = 0; |
| 2583 | |
| 2584 | if (!display || !adj_mode) { |
| 2585 | pr_err("Invalid params\n"); |
| 2586 | return false; |
| 2587 | } |
| 2588 | |
| 2589 | /* Currently the only seamless transition is dynamic fps */ |
| 2590 | rc = dsi_display_get_dfps_timing(display, adj_mode); |
| 2591 | if (rc) { |
| 2592 | pr_debug("Dynamic FPS not supported for seamless\n"); |
| 2593 | } else { |
| 2594 | pr_debug("Mode switch is seamless Dynamic FPS\n"); |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2595 | adj_mode->dsi_mode_flags |= DSI_MODE_FLAG_DFPS | |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2596 | DSI_MODE_FLAG_VBLANK_PRE_MODESET; |
| 2597 | } |
| 2598 | |
| 2599 | return rc; |
| 2600 | } |
| 2601 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2602 | static int dsi_display_set_mode_sub(struct dsi_display *display, |
| 2603 | struct dsi_display_mode *mode, |
| 2604 | u32 flags) |
| 2605 | { |
| 2606 | int rc = 0; |
| 2607 | int i; |
| 2608 | struct dsi_display_ctrl *ctrl; |
| 2609 | |
| 2610 | rc = dsi_panel_get_host_cfg_for_mode(display->panel, |
| 2611 | mode, |
| 2612 | &display->config); |
| 2613 | if (rc) { |
| 2614 | pr_err("[%s] failed to get host config for mode, rc=%d\n", |
| 2615 | display->name, rc); |
| 2616 | goto error; |
| 2617 | } |
| 2618 | |
| 2619 | memcpy(&display->config.lane_map, &display->lane_map, |
| 2620 | sizeof(display->lane_map)); |
| 2621 | |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2622 | if (mode->dsi_mode_flags & DSI_MODE_FLAG_DFPS) { |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2623 | rc = dsi_display_dfps_update(display, mode); |
| 2624 | if (rc) { |
| 2625 | pr_err("[%s]DSI dfps update failed, rc=%d\n", |
| 2626 | display->name, rc); |
| 2627 | goto error; |
| 2628 | } |
| 2629 | } |
| 2630 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2631 | for (i = 0; i < display->ctrl_count; i++) { |
| 2632 | ctrl = &display->ctrl[i]; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 2633 | rc = dsi_ctrl_update_host_config(ctrl->ctrl, &display->config, |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 2634 | mode->dsi_mode_flags, display->dsi_clk_handle); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2635 | if (rc) { |
| 2636 | pr_err("[%s] failed to update ctrl config, rc=%d\n", |
| 2637 | display->name, rc); |
| 2638 | goto error; |
| 2639 | } |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2640 | } |
| 2641 | error: |
| 2642 | return rc; |
| 2643 | } |
| 2644 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2645 | /** |
| 2646 | * _dsi_display_dev_init - initializes the display device |
| 2647 | * Initialization will acquire references to the resources required for the |
| 2648 | * display hardware to function. |
| 2649 | * @display: Handle to the display |
| 2650 | * Returns: Zero on success |
| 2651 | */ |
| 2652 | static int _dsi_display_dev_init(struct dsi_display *display) |
| 2653 | { |
| 2654 | int rc = 0; |
| 2655 | |
| 2656 | if (!display) { |
| 2657 | pr_err("invalid display\n"); |
| 2658 | return -EINVAL; |
| 2659 | } |
| 2660 | |
| 2661 | mutex_lock(&display->display_lock); |
| 2662 | |
| 2663 | rc = dsi_display_parse_dt(display); |
| 2664 | if (rc) { |
| 2665 | pr_err("[%s] failed to parse dt, rc=%d\n", display->name, rc); |
| 2666 | goto error; |
| 2667 | } |
| 2668 | |
| 2669 | rc = dsi_display_res_init(display); |
| 2670 | if (rc) { |
| 2671 | pr_err("[%s] failed to initialize resources, rc=%d\n", |
| 2672 | display->name, rc); |
| 2673 | goto error; |
| 2674 | } |
| 2675 | error: |
| 2676 | mutex_unlock(&display->display_lock); |
| 2677 | return rc; |
| 2678 | } |
| 2679 | |
| 2680 | /** |
| 2681 | * _dsi_display_dev_deinit - deinitializes the display device |
| 2682 | * All the resources acquired during device init will be released. |
| 2683 | * @display: Handle to the display |
| 2684 | * Returns: Zero on success |
| 2685 | */ |
| 2686 | static int _dsi_display_dev_deinit(struct dsi_display *display) |
| 2687 | { |
| 2688 | int rc = 0; |
| 2689 | |
| 2690 | if (!display) { |
| 2691 | pr_err("invalid display\n"); |
| 2692 | return -EINVAL; |
| 2693 | } |
| 2694 | |
| 2695 | mutex_lock(&display->display_lock); |
| 2696 | |
| 2697 | rc = dsi_display_res_deinit(display); |
| 2698 | if (rc) |
| 2699 | pr_err("[%s] failed to deinitialize resource, rc=%d\n", |
| 2700 | display->name, rc); |
| 2701 | |
| 2702 | mutex_unlock(&display->display_lock); |
| 2703 | |
| 2704 | return rc; |
| 2705 | } |
| 2706 | |
| 2707 | /** |
| 2708 | * dsi_display_bind - bind dsi device with controlling device |
| 2709 | * @dev: Pointer to base of platform device |
| 2710 | * @master: Pointer to container of drm device |
| 2711 | * @data: Pointer to private data |
| 2712 | * Returns: Zero on success |
| 2713 | */ |
| 2714 | static int dsi_display_bind(struct device *dev, |
| 2715 | struct device *master, |
| 2716 | void *data) |
| 2717 | { |
| 2718 | struct dsi_display_ctrl *display_ctrl; |
| 2719 | struct drm_device *drm; |
| 2720 | struct dsi_display *display; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2721 | struct dsi_clk_info info; |
| 2722 | struct clk_ctrl_cb clk_cb; |
Shashank Babu Chinta Venkata | 74a03f1 | 2017-02-28 11:24:51 -0800 | [diff] [blame] | 2723 | struct msm_drm_private *priv; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2724 | void *handle = NULL; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2725 | struct platform_device *pdev = to_platform_device(dev); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2726 | char *client1 = "dsi_clk_client"; |
| 2727 | char *client2 = "mdp_event_client"; |
Shashank Babu Chinta Venkata | 74a03f1 | 2017-02-28 11:24:51 -0800 | [diff] [blame] | 2728 | char dsi_client_name[DSI_CLIENT_NAME_SIZE]; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2729 | int i, rc = 0; |
| 2730 | |
| 2731 | if (!dev || !pdev || !master) { |
| 2732 | pr_err("invalid param(s), dev %pK, pdev %pK, master %pK\n", |
| 2733 | dev, pdev, master); |
| 2734 | return -EINVAL; |
| 2735 | } |
| 2736 | |
| 2737 | drm = dev_get_drvdata(master); |
| 2738 | display = platform_get_drvdata(pdev); |
| 2739 | if (!drm || !display) { |
| 2740 | pr_err("invalid param(s), drm %pK, display %pK\n", |
| 2741 | drm, display); |
| 2742 | return -EINVAL; |
| 2743 | } |
Shashank Babu Chinta Venkata | 74a03f1 | 2017-02-28 11:24:51 -0800 | [diff] [blame] | 2744 | priv = drm->dev_private; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2745 | |
| 2746 | mutex_lock(&display->display_lock); |
| 2747 | |
| 2748 | rc = dsi_display_debugfs_init(display); |
| 2749 | if (rc) { |
| 2750 | pr_err("[%s] debugfs init failed, rc=%d\n", display->name, rc); |
| 2751 | goto error; |
| 2752 | } |
| 2753 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2754 | memset(&info, 0x0, sizeof(info)); |
| 2755 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2756 | for (i = 0; i < display->ctrl_count; i++) { |
| 2757 | display_ctrl = &display->ctrl[i]; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2758 | rc = dsi_ctrl_drv_init(display_ctrl->ctrl, display->root); |
| 2759 | if (rc) { |
| 2760 | pr_err("[%s] failed to initialize ctrl[%d], rc=%d\n", |
| 2761 | display->name, i, rc); |
| 2762 | goto error_ctrl_deinit; |
| 2763 | } |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 2764 | display_ctrl->ctrl->horiz_index = i; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2765 | |
| 2766 | rc = dsi_phy_drv_init(display_ctrl->phy); |
| 2767 | if (rc) { |
| 2768 | pr_err("[%s] Failed to initialize phy[%d], rc=%d\n", |
| 2769 | display->name, i, rc); |
| 2770 | (void)dsi_ctrl_drv_deinit(display_ctrl->ctrl); |
| 2771 | goto error_ctrl_deinit; |
| 2772 | } |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2773 | |
| 2774 | memcpy(&info.c_clks[i], &display_ctrl->ctrl->clk_info.core_clks, |
| 2775 | sizeof(struct dsi_core_clk_info)); |
| 2776 | memcpy(&info.l_clks[i], &display_ctrl->ctrl->clk_info.link_clks, |
| 2777 | sizeof(struct dsi_link_clk_info)); |
Shashank Babu Chinta Venkata | 74a03f1 | 2017-02-28 11:24:51 -0800 | [diff] [blame] | 2778 | info.c_clks[i].phandle = &priv->phandle; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2779 | info.bus_handle[i] = |
| 2780 | display_ctrl->ctrl->axi_bus_info.bus_handle; |
Alexander Beykun | 32a6a18 | 2017-02-27 17:46:51 -0500 | [diff] [blame] | 2781 | info.ctrl_index[i] = display_ctrl->ctrl->cell_index; |
Shashank Babu Chinta Venkata | 74a03f1 | 2017-02-28 11:24:51 -0800 | [diff] [blame] | 2782 | snprintf(dsi_client_name, DSI_CLIENT_NAME_SIZE, |
| 2783 | "dsi_core_client%u", i); |
| 2784 | info.c_clks[i].dsi_core_client = sde_power_client_create( |
| 2785 | info.c_clks[i].phandle, dsi_client_name); |
| 2786 | if (IS_ERR_OR_NULL(info.c_clks[i].dsi_core_client)) { |
| 2787 | pr_err("[%s] client creation failed for ctrl[%d]", |
| 2788 | dsi_client_name, i); |
| 2789 | goto error_ctrl_deinit; |
| 2790 | } |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2791 | } |
| 2792 | |
| 2793 | info.pre_clkoff_cb = dsi_pre_clkoff_cb; |
| 2794 | info.pre_clkon_cb = dsi_pre_clkon_cb; |
| 2795 | info.post_clkoff_cb = dsi_post_clkoff_cb; |
| 2796 | info.post_clkon_cb = dsi_post_clkon_cb; |
| 2797 | info.priv_data = display; |
| 2798 | info.master_ndx = display->clk_master_idx; |
| 2799 | info.dsi_ctrl_count = display->ctrl_count; |
| 2800 | snprintf(info.name, MAX_STRING_LEN, |
| 2801 | "DSI_MNGR-%s", display->name); |
| 2802 | |
| 2803 | display->clk_mngr = dsi_display_clk_mngr_register(&info); |
| 2804 | if (IS_ERR_OR_NULL(display->clk_mngr)) { |
| 2805 | rc = PTR_ERR(display->clk_mngr); |
| 2806 | display->clk_mngr = NULL; |
| 2807 | pr_err("dsi clock registration failed, rc = %d\n", rc); |
| 2808 | goto error_ctrl_deinit; |
| 2809 | } |
| 2810 | |
| 2811 | handle = dsi_register_clk_handle(display->clk_mngr, client1); |
| 2812 | if (IS_ERR_OR_NULL(handle)) { |
| 2813 | rc = PTR_ERR(handle); |
| 2814 | pr_err("failed to register %s client, rc = %d\n", |
| 2815 | client1, rc); |
| 2816 | goto error_clk_deinit; |
| 2817 | } else { |
| 2818 | display->dsi_clk_handle = handle; |
| 2819 | } |
| 2820 | |
| 2821 | handle = dsi_register_clk_handle(display->clk_mngr, client2); |
| 2822 | if (IS_ERR_OR_NULL(handle)) { |
| 2823 | rc = PTR_ERR(handle); |
| 2824 | pr_err("failed to register %s client, rc = %d\n", |
| 2825 | client2, rc); |
| 2826 | goto error_clk_client_deinit; |
| 2827 | } else { |
| 2828 | display->mdp_clk_handle = handle; |
| 2829 | } |
| 2830 | |
| 2831 | clk_cb.priv = display; |
| 2832 | clk_cb.dsi_clk_cb = dsi_display_clk_ctrl_cb; |
| 2833 | |
| 2834 | for (i = 0; i < display->ctrl_count; i++) { |
| 2835 | display_ctrl = &display->ctrl[i]; |
| 2836 | |
| 2837 | rc = dsi_ctrl_clk_cb_register(display_ctrl->ctrl, &clk_cb); |
| 2838 | if (rc) { |
| 2839 | pr_err("[%s] failed to register ctrl clk_cb[%d], rc=%d\n", |
| 2840 | display->name, i, rc); |
| 2841 | goto error_ctrl_deinit; |
| 2842 | } |
| 2843 | |
| 2844 | rc = dsi_phy_clk_cb_register(display_ctrl->phy, &clk_cb); |
| 2845 | if (rc) { |
| 2846 | pr_err("[%s] failed to register phy clk_cb[%d], rc=%d\n", |
| 2847 | display->name, i, rc); |
| 2848 | goto error_ctrl_deinit; |
| 2849 | } |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2850 | } |
| 2851 | |
| 2852 | rc = dsi_display_mipi_host_init(display); |
| 2853 | if (rc) { |
| 2854 | pr_err("[%s] failed to initialize mipi host, rc=%d\n", |
| 2855 | display->name, rc); |
| 2856 | goto error_ctrl_deinit; |
| 2857 | } |
| 2858 | |
| 2859 | rc = dsi_panel_drv_init(display->panel, &display->host); |
| 2860 | if (rc) { |
| 2861 | if (rc != -EPROBE_DEFER) |
| 2862 | pr_err("[%s] failed to initialize panel driver, rc=%d\n", |
| 2863 | display->name, rc); |
| 2864 | goto error_host_deinit; |
| 2865 | } |
| 2866 | |
| 2867 | rc = dsi_panel_get_mode_count(display->panel, &display->num_of_modes); |
| 2868 | if (rc) { |
| 2869 | pr_err("[%s] failed to get mode count, rc=%d\n", |
| 2870 | display->name, rc); |
| 2871 | goto error_panel_deinit; |
| 2872 | } |
| 2873 | |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 2874 | pr_info("Successfully bind display panel '%s'\n", display->name); |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2875 | display->drm_dev = drm; |
| 2876 | goto error; |
| 2877 | |
| 2878 | error_panel_deinit: |
| 2879 | (void)dsi_panel_drv_deinit(display->panel); |
| 2880 | error_host_deinit: |
| 2881 | (void)dsi_display_mipi_host_deinit(display); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 2882 | error_clk_client_deinit: |
| 2883 | (void)dsi_deregister_clk_handle(display->dsi_clk_handle); |
| 2884 | error_clk_deinit: |
| 2885 | (void)dsi_display_clk_mngr_deregister(display->clk_mngr); |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 2886 | error_ctrl_deinit: |
| 2887 | for (i = i - 1; i >= 0; i--) { |
| 2888 | display_ctrl = &display->ctrl[i]; |
| 2889 | (void)dsi_phy_drv_deinit(display_ctrl->phy); |
| 2890 | (void)dsi_ctrl_drv_deinit(display_ctrl->ctrl); |
| 2891 | } |
| 2892 | (void)dsi_display_debugfs_deinit(display); |
| 2893 | error: |
| 2894 | mutex_unlock(&display->display_lock); |
| 2895 | return rc; |
| 2896 | } |
| 2897 | |
| 2898 | /** |
| 2899 | * dsi_display_unbind - unbind dsi from controlling device |
| 2900 | * @dev: Pointer to base of platform device |
| 2901 | * @master: Pointer to container of drm device |
| 2902 | * @data: Pointer to private data |
| 2903 | */ |
| 2904 | static void dsi_display_unbind(struct device *dev, |
| 2905 | struct device *master, void *data) |
| 2906 | { |
| 2907 | struct dsi_display_ctrl *display_ctrl; |
| 2908 | struct dsi_display *display; |
| 2909 | struct platform_device *pdev = to_platform_device(dev); |
| 2910 | int i, rc = 0; |
| 2911 | |
| 2912 | if (!dev || !pdev) { |
| 2913 | pr_err("invalid param(s)\n"); |
| 2914 | return; |
| 2915 | } |
| 2916 | |
| 2917 | display = platform_get_drvdata(pdev); |
| 2918 | if (!display) { |
| 2919 | pr_err("invalid display\n"); |
| 2920 | return; |
| 2921 | } |
| 2922 | |
| 2923 | mutex_lock(&display->display_lock); |
| 2924 | |
| 2925 | rc = dsi_panel_drv_deinit(display->panel); |
| 2926 | if (rc) |
| 2927 | pr_err("[%s] failed to deinit panel driver, rc=%d\n", |
| 2928 | display->name, rc); |
| 2929 | |
| 2930 | rc = dsi_display_mipi_host_deinit(display); |
| 2931 | if (rc) |
| 2932 | pr_err("[%s] failed to deinit mipi hosts, rc=%d\n", |
| 2933 | display->name, |
| 2934 | rc); |
| 2935 | |
| 2936 | for (i = 0; i < display->ctrl_count; i++) { |
| 2937 | display_ctrl = &display->ctrl[i]; |
| 2938 | |
| 2939 | rc = dsi_phy_drv_deinit(display_ctrl->phy); |
| 2940 | if (rc) |
| 2941 | pr_err("[%s] failed to deinit phy%d driver, rc=%d\n", |
| 2942 | display->name, i, rc); |
| 2943 | |
| 2944 | rc = dsi_ctrl_drv_deinit(display_ctrl->ctrl); |
| 2945 | if (rc) |
| 2946 | pr_err("[%s] failed to deinit ctrl%d driver, rc=%d\n", |
| 2947 | display->name, i, rc); |
| 2948 | } |
| 2949 | (void)dsi_display_debugfs_deinit(display); |
| 2950 | |
| 2951 | mutex_unlock(&display->display_lock); |
| 2952 | } |
| 2953 | |
| 2954 | static const struct component_ops dsi_display_comp_ops = { |
| 2955 | .bind = dsi_display_bind, |
| 2956 | .unbind = dsi_display_unbind, |
| 2957 | }; |
| 2958 | |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 2959 | static struct platform_driver dsi_display_driver = { |
| 2960 | .probe = dsi_display_dev_probe, |
| 2961 | .remove = dsi_display_dev_remove, |
| 2962 | .driver = { |
| 2963 | .name = "msm-dsi-display", |
| 2964 | .of_match_table = dsi_display_dt_match, |
| 2965 | }, |
| 2966 | }; |
| 2967 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2968 | int dsi_display_dev_probe(struct platform_device *pdev) |
| 2969 | { |
| 2970 | int rc = 0; |
| 2971 | struct dsi_display *display; |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 2972 | static bool display_from_cmdline, boot_displays_parsed; |
| 2973 | static bool comp_add_success; |
| 2974 | static struct device_node *primary_np, *secondary_np; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2975 | |
| 2976 | if (!pdev || !pdev->dev.of_node) { |
| 2977 | pr_err("pdev not found\n"); |
| 2978 | return -ENODEV; |
| 2979 | } |
| 2980 | |
| 2981 | display = devm_kzalloc(&pdev->dev, sizeof(*display), GFP_KERNEL); |
| 2982 | if (!display) |
| 2983 | return -ENOMEM; |
| 2984 | |
| 2985 | display->name = of_get_property(pdev->dev.of_node, "label", NULL); |
| 2986 | |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 2987 | if (!boot_displays_parsed) { |
| 2988 | boot_displays[DSI_PRIMARY].boot_disp_en = false; |
| 2989 | boot_displays[DSI_SECONDARY].boot_disp_en = false; |
| 2990 | if (dsi_display_parse_boot_display_selection()) |
| 2991 | pr_debug("Display Boot param not valid/available\n"); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 2992 | |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 2993 | boot_displays_parsed = true; |
| 2994 | } |
| 2995 | |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 2996 | /* Initialize cmdline_topology to use default topology */ |
| 2997 | display->cmdline_topology = -1; |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 2998 | if ((!display_from_cmdline) && |
| 2999 | (boot_displays[DSI_PRIMARY].boot_disp_en)) { |
| 3000 | display->is_active = dsi_display_name_compare(pdev->dev.of_node, |
| 3001 | display->name, DSI_PRIMARY); |
| 3002 | if (display->is_active) { |
| 3003 | if (comp_add_success) { |
| 3004 | (void)_dsi_display_dev_deinit(main_display); |
| 3005 | component_del(&main_display->pdev->dev, |
| 3006 | &dsi_display_comp_ops); |
Dhaval Patel | 081400e | 2017-06-21 19:24:48 -0700 | [diff] [blame] | 3007 | mutex_lock(&dsi_display_list_lock); |
| 3008 | list_del(&main_display->list); |
| 3009 | mutex_unlock(&dsi_display_list_lock); |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3010 | comp_add_success = false; |
| 3011 | default_active_node = NULL; |
| 3012 | pr_debug("removed the existing comp ops\n"); |
| 3013 | } |
| 3014 | /* |
| 3015 | * Need to add component for |
| 3016 | * the secondary DSI display |
| 3017 | * when more than one DSI display |
| 3018 | * is supported. |
| 3019 | */ |
| 3020 | pr_debug("cmdline primary dsi: %s\n", |
| 3021 | display->name); |
| 3022 | display_from_cmdline = true; |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3023 | display->cmdline_topology = |
| 3024 | dsi_display_parse_cmdline_topology(DSI_PRIMARY); |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3025 | primary_np = pdev->dev.of_node; |
| 3026 | } |
| 3027 | } |
| 3028 | |
| 3029 | if (boot_displays[DSI_SECONDARY].boot_disp_en) { |
| 3030 | if (!secondary_np) { |
| 3031 | if (dsi_display_name_compare(pdev->dev.of_node, |
| 3032 | display->name, DSI_SECONDARY)) { |
| 3033 | pr_debug("cmdline secondary dsi: %s\n", |
| 3034 | display->name); |
| 3035 | secondary_np = pdev->dev.of_node; |
| 3036 | if (primary_np) { |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3037 | if (validate_dsi_display_selection()) { |
| 3038 | display->is_active = true; |
| 3039 | display->cmdline_topology = |
| 3040 | dsi_display_parse_cmdline_topology |
| 3041 | (DSI_SECONDARY); |
| 3042 | } else { |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3043 | boot_displays[DSI_SECONDARY] |
| 3044 | .boot_disp_en = false; |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3045 | } |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3046 | } |
| 3047 | } |
| 3048 | } |
| 3049 | } |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3050 | display->display_type = of_get_property(pdev->dev.of_node, |
| 3051 | "qcom,display-type", NULL); |
| 3052 | if (!display->display_type) |
| 3053 | display->display_type = "unknown"; |
| 3054 | |
| 3055 | mutex_init(&display->display_lock); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3056 | display->pdev = pdev; |
| 3057 | platform_set_drvdata(pdev, display); |
| 3058 | mutex_lock(&dsi_display_list_lock); |
| 3059 | list_add(&display->list, &dsi_display_list); |
| 3060 | mutex_unlock(&dsi_display_list_lock); |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3061 | |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3062 | if (!display_from_cmdline) |
| 3063 | display->is_active = of_property_read_bool(pdev->dev.of_node, |
| 3064 | "qcom,dsi-display-active"); |
| 3065 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3066 | if (display->is_active) { |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3067 | main_display = display; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3068 | rc = _dsi_display_dev_init(display); |
| 3069 | if (rc) { |
| 3070 | pr_err("device init failed, rc=%d\n", rc); |
| 3071 | return rc; |
| 3072 | } |
| 3073 | |
| 3074 | rc = component_add(&pdev->dev, &dsi_display_comp_ops); |
| 3075 | if (rc) |
| 3076 | pr_err("component add failed, rc=%d\n", rc); |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3077 | |
| 3078 | comp_add_success = true; |
| 3079 | pr_debug("Component_add success: %s\n", display->name); |
| 3080 | if (!display_from_cmdline) |
| 3081 | default_active_node = pdev->dev.of_node; |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3082 | } |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3083 | return rc; |
| 3084 | } |
| 3085 | |
| 3086 | int dsi_display_dev_remove(struct platform_device *pdev) |
| 3087 | { |
| 3088 | int rc = 0; |
| 3089 | struct dsi_display *display; |
| 3090 | struct dsi_display *pos, *tmp; |
| 3091 | |
| 3092 | if (!pdev) { |
| 3093 | pr_err("Invalid device\n"); |
| 3094 | return -EINVAL; |
| 3095 | } |
| 3096 | |
| 3097 | display = platform_get_drvdata(pdev); |
| 3098 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3099 | (void)_dsi_display_dev_deinit(display); |
| 3100 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3101 | mutex_lock(&dsi_display_list_lock); |
| 3102 | list_for_each_entry_safe(pos, tmp, &dsi_display_list, list) { |
| 3103 | if (pos == display) { |
| 3104 | list_del(&display->list); |
| 3105 | break; |
| 3106 | } |
| 3107 | } |
| 3108 | mutex_unlock(&dsi_display_list_lock); |
| 3109 | |
| 3110 | platform_set_drvdata(pdev, NULL); |
| 3111 | devm_kfree(&pdev->dev, display); |
| 3112 | return rc; |
| 3113 | } |
| 3114 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3115 | int dsi_display_get_num_of_displays(void) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3116 | { |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3117 | int count = 0; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3118 | struct dsi_display *display; |
| 3119 | |
| 3120 | mutex_lock(&dsi_display_list_lock); |
| 3121 | |
| 3122 | list_for_each_entry(display, &dsi_display_list, list) { |
| 3123 | count++; |
| 3124 | } |
| 3125 | |
| 3126 | mutex_unlock(&dsi_display_list_lock); |
| 3127 | return count; |
| 3128 | } |
| 3129 | |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3130 | int dsi_display_get_active_displays(void **display_array, u32 max_display_count) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3131 | { |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3132 | struct dsi_display *pos; |
| 3133 | int i = 0; |
| 3134 | |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3135 | if (!display_array || !max_display_count) { |
| 3136 | if (!display_array) |
| 3137 | pr_err("invalid params\n"); |
| 3138 | return 0; |
| 3139 | } |
| 3140 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3141 | mutex_lock(&dsi_display_list_lock); |
| 3142 | |
| 3143 | list_for_each_entry(pos, &dsi_display_list, list) { |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3144 | if (i >= max_display_count) { |
| 3145 | pr_err("capping display count to %d\n", i); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3146 | break; |
| 3147 | } |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3148 | if (pos->is_active) |
| 3149 | display_array[i++] = pos; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3150 | } |
| 3151 | |
| 3152 | mutex_unlock(&dsi_display_list_lock); |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3153 | return i; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3154 | } |
| 3155 | |
| 3156 | struct dsi_display *dsi_display_get_display_by_name(const char *name) |
| 3157 | { |
| 3158 | struct dsi_display *display = NULL, *pos; |
| 3159 | |
| 3160 | mutex_lock(&dsi_display_list_lock); |
| 3161 | |
| 3162 | list_for_each_entry(pos, &dsi_display_list, list) { |
| 3163 | if (!strcmp(name, pos->name)) |
| 3164 | display = pos; |
| 3165 | } |
| 3166 | |
| 3167 | mutex_unlock(&dsi_display_list_lock); |
| 3168 | |
| 3169 | return display; |
| 3170 | } |
| 3171 | |
| 3172 | void dsi_display_set_active_state(struct dsi_display *display, bool is_active) |
| 3173 | { |
| 3174 | mutex_lock(&display->display_lock); |
| 3175 | display->is_active = is_active; |
| 3176 | mutex_unlock(&display->display_lock); |
| 3177 | } |
| 3178 | |
Clarence Ip | 40d7d59 | 2016-07-15 16:02:26 -0400 | [diff] [blame] | 3179 | int dsi_display_drm_bridge_init(struct dsi_display *display, |
| 3180 | struct drm_encoder *enc) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3181 | { |
| 3182 | int rc = 0; |
| 3183 | struct dsi_bridge *bridge; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3184 | struct msm_drm_private *priv = NULL; |
| 3185 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3186 | if (!display || !display->drm_dev || !enc) { |
| 3187 | pr_err("invalid param(s)\n"); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3188 | return -EINVAL; |
| 3189 | } |
| 3190 | |
| 3191 | mutex_lock(&display->display_lock); |
| 3192 | priv = display->drm_dev->dev_private; |
| 3193 | |
| 3194 | if (!priv) { |
| 3195 | pr_err("Private data is not present\n"); |
| 3196 | rc = -EINVAL; |
| 3197 | goto error; |
| 3198 | } |
| 3199 | |
Clarence Ip | 40d7d59 | 2016-07-15 16:02:26 -0400 | [diff] [blame] | 3200 | if (display->bridge) { |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3201 | pr_err("display is already initialize\n"); |
| 3202 | goto error; |
| 3203 | } |
| 3204 | |
| 3205 | bridge = dsi_drm_bridge_init(display, display->drm_dev, enc); |
| 3206 | if (IS_ERR_OR_NULL(bridge)) { |
| 3207 | rc = PTR_ERR(bridge); |
Clarence Ip | a36c92e | 2016-07-26 14:33:46 -0400 | [diff] [blame] | 3208 | pr_err("[%s] brige init failed, %d\n", display->name, rc); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3209 | goto error; |
| 3210 | } |
| 3211 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3212 | display->bridge = bridge; |
| 3213 | priv->bridges[priv->num_bridges++] = &bridge->base; |
| 3214 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3215 | error: |
| 3216 | mutex_unlock(&display->display_lock); |
| 3217 | return rc; |
| 3218 | } |
| 3219 | |
Clarence Ip | 40d7d59 | 2016-07-15 16:02:26 -0400 | [diff] [blame] | 3220 | int dsi_display_drm_bridge_deinit(struct dsi_display *display) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3221 | { |
| 3222 | int rc = 0; |
| 3223 | |
| 3224 | if (!display) { |
| 3225 | pr_err("Invalid params\n"); |
| 3226 | return -EINVAL; |
| 3227 | } |
| 3228 | |
| 3229 | mutex_lock(&display->display_lock); |
| 3230 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3231 | dsi_drm_bridge_cleanup(display->bridge); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3232 | display->bridge = NULL; |
| 3233 | |
| 3234 | mutex_unlock(&display->display_lock); |
| 3235 | return rc; |
| 3236 | } |
| 3237 | |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3238 | int dsi_display_get_info(struct msm_display_info *info, void *disp) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3239 | { |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3240 | struct dsi_display *display; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3241 | struct dsi_panel_phy_props phy_props; |
Dhaval Patel | 60e1ff5 | 2017-02-18 21:03:40 -0800 | [diff] [blame] | 3242 | struct dsi_mode_info *timing; |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3243 | int i, rc; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3244 | |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3245 | if (!info || !disp) { |
| 3246 | pr_err("invalid params\n"); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3247 | return -EINVAL; |
| 3248 | } |
Dhaval Patel | 60e1ff5 | 2017-02-18 21:03:40 -0800 | [diff] [blame] | 3249 | |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3250 | display = disp; |
Dhaval Patel | 60e1ff5 | 2017-02-18 21:03:40 -0800 | [diff] [blame] | 3251 | if (!display->panel) { |
| 3252 | pr_err("invalid display panel\n"); |
| 3253 | return -EINVAL; |
| 3254 | } |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3255 | |
| 3256 | mutex_lock(&display->display_lock); |
| 3257 | rc = dsi_panel_get_phy_props(display->panel, &phy_props); |
| 3258 | if (rc) { |
| 3259 | pr_err("[%s] failed to get panel phy props, rc=%d\n", |
| 3260 | display->name, rc); |
| 3261 | goto error; |
| 3262 | } |
| 3263 | |
Alan Kwong | 735b3db | 2017-05-03 06:47:52 -0700 | [diff] [blame] | 3264 | memset(info, 0, sizeof(struct msm_display_info)); |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3265 | info->intf_type = DRM_MODE_CONNECTOR_DSI; |
Dhaval Patel | 60e1ff5 | 2017-02-18 21:03:40 -0800 | [diff] [blame] | 3266 | timing = &display->panel->mode.timing; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3267 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3268 | info->num_of_h_tiles = display->ctrl_count; |
| 3269 | for (i = 0; i < info->num_of_h_tiles; i++) |
Alexander Beykun | 32a6a18 | 2017-02-27 17:46:51 -0500 | [diff] [blame] | 3270 | info->h_tile_instance[i] = display->ctrl[i].ctrl->cell_index; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3271 | |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3272 | info->is_connected = true; |
Dhaval Patel | 020f7e12 | 2016-11-15 14:39:18 -0800 | [diff] [blame] | 3273 | info->is_primary = true; |
Dhaval Patel | 60e1ff5 | 2017-02-18 21:03:40 -0800 | [diff] [blame] | 3274 | info->frame_rate = timing->refresh_rate; |
| 3275 | info->vtotal = DSI_V_TOTAL(timing); |
| 3276 | info->prefill_lines = display->panel->panel_prefill_lines; |
Dhaval Patel | f5cc5a3 | 2017-07-10 17:33:23 -0700 | [diff] [blame] | 3277 | info->jitter_numer = display->panel->panel_jitter_numer; |
| 3278 | info->jitter_denom = display->panel->panel_jitter_denom; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3279 | info->width_mm = phy_props.panel_width_mm; |
| 3280 | info->height_mm = phy_props.panel_height_mm; |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3281 | info->max_width = 1920; |
| 3282 | info->max_height = 1080; |
Alexander Beykun | ac18235 | 2017-02-27 17:46:51 -0500 | [diff] [blame] | 3283 | info->comp_info.comp_type = MSM_DISPLAY_COMPRESSION_NONE; |
| 3284 | |
| 3285 | if (display->panel->dsc_enabled) { |
| 3286 | info->comp_info.comp_type = MSM_DISPLAY_COMPRESSION_DSC; |
| 3287 | memcpy(&info->comp_info.dsc_info, &display->panel->dsc, |
| 3288 | sizeof(struct msm_display_dsc_info)); |
| 3289 | } |
Lloyd Atkinson | e404caf | 2016-07-13 17:26:45 -0400 | [diff] [blame] | 3290 | |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3291 | switch (display->panel->mode.panel_mode) { |
| 3292 | case DSI_OP_VIDEO_MODE: |
| 3293 | info->capabilities |= MSM_DISPLAY_CAP_VID_MODE; |
| 3294 | break; |
| 3295 | case DSI_OP_CMD_MODE: |
| 3296 | info->capabilities |= MSM_DISPLAY_CAP_CMD_MODE; |
Narendra Muppalla | d4081e1 | 2017-04-20 19:24:08 -0700 | [diff] [blame] | 3297 | info->is_te_using_watchdog_timer = |
| 3298 | display->panel->te_using_watchdog_timer; |
Clarence Ip | a403932 | 2016-07-15 16:23:59 -0400 | [diff] [blame] | 3299 | break; |
| 3300 | default: |
| 3301 | pr_err("unknwown dsi panel mode %d\n", |
| 3302 | display->panel->mode.panel_mode); |
| 3303 | break; |
| 3304 | } |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 3305 | |
| 3306 | memcpy(&info->roi_caps, &display->panel->roi_caps, |
| 3307 | sizeof(info->roi_caps)); |
| 3308 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3309 | error: |
| 3310 | mutex_unlock(&display->display_lock); |
| 3311 | return rc; |
| 3312 | } |
| 3313 | |
| 3314 | int dsi_display_get_modes(struct dsi_display *display, |
| 3315 | struct dsi_display_mode *modes, |
| 3316 | u32 *count) |
| 3317 | { |
| 3318 | int rc = 0; |
| 3319 | int i; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3320 | struct dsi_dfps_capabilities dfps_caps; |
| 3321 | int num_dfps_rates; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3322 | |
| 3323 | if (!display || !count) { |
| 3324 | pr_err("Invalid params\n"); |
| 3325 | return -EINVAL; |
| 3326 | } |
| 3327 | |
| 3328 | mutex_lock(&display->display_lock); |
| 3329 | |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3330 | rc = dsi_panel_get_dfps_caps(display->panel, &dfps_caps); |
| 3331 | if (rc) { |
| 3332 | pr_err("[%s] failed to get dfps caps from panel\n", |
| 3333 | display->name); |
| 3334 | goto error; |
| 3335 | } |
| 3336 | |
| 3337 | num_dfps_rates = !dfps_caps.dfps_support ? 1 : |
| 3338 | dfps_caps.max_refresh_rate - |
| 3339 | dfps_caps.min_refresh_rate + 1; |
| 3340 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3341 | if (!modes) { |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3342 | /* Inflate num_of_modes by fps in dfps */ |
| 3343 | *count = display->num_of_modes * num_dfps_rates; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3344 | goto error; |
| 3345 | } |
| 3346 | |
| 3347 | for (i = 0; i < *count; i++) { |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3348 | /* Insert the dfps "sub-modes" between main panel modes */ |
| 3349 | int panel_mode_idx = i / num_dfps_rates; |
| 3350 | |
| 3351 | rc = dsi_panel_get_mode(display->panel, panel_mode_idx, modes); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3352 | if (rc) { |
| 3353 | pr_err("[%s] failed to get mode from panel\n", |
| 3354 | display->name); |
| 3355 | goto error; |
| 3356 | } |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3357 | |
| 3358 | if (dfps_caps.dfps_support) { |
| 3359 | modes->timing.refresh_rate = dfps_caps.min_refresh_rate |
| 3360 | + (i % num_dfps_rates); |
| 3361 | modes->pixel_clk_khz = (DSI_H_TOTAL(&modes->timing) * |
| 3362 | DSI_V_TOTAL(&modes->timing) * |
| 3363 | modes->timing.refresh_rate) / 1000; |
| 3364 | } |
| 3365 | |
| 3366 | if (display->ctrl_count > 1) { /* TODO: remove if */ |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3367 | modes->timing.h_active *= display->ctrl_count; |
| 3368 | modes->timing.h_front_porch *= display->ctrl_count; |
| 3369 | modes->timing.h_sync_width *= display->ctrl_count; |
| 3370 | modes->timing.h_back_porch *= display->ctrl_count; |
| 3371 | modes->timing.h_skew *= display->ctrl_count; |
| 3372 | modes->pixel_clk_khz *= display->ctrl_count; |
| 3373 | } |
| 3374 | |
| 3375 | modes++; |
| 3376 | } |
| 3377 | |
| 3378 | error: |
| 3379 | mutex_unlock(&display->display_lock); |
| 3380 | return rc; |
| 3381 | } |
| 3382 | |
| 3383 | int dsi_display_validate_mode(struct dsi_display *display, |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3384 | struct dsi_display_mode *mode, |
| 3385 | u32 flags) |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3386 | { |
| 3387 | int rc = 0; |
| 3388 | int i; |
| 3389 | struct dsi_display_ctrl *ctrl; |
| 3390 | struct dsi_display_mode adj_mode; |
| 3391 | |
| 3392 | if (!display || !mode) { |
| 3393 | pr_err("Invalid params\n"); |
| 3394 | return -EINVAL; |
| 3395 | } |
| 3396 | |
| 3397 | mutex_lock(&display->display_lock); |
| 3398 | |
| 3399 | adj_mode = *mode; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3400 | adjust_timing_by_ctrl_count(display, &adj_mode); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3401 | |
| 3402 | rc = dsi_panel_validate_mode(display->panel, &adj_mode); |
| 3403 | if (rc) { |
| 3404 | pr_err("[%s] panel mode validation failed, rc=%d\n", |
| 3405 | display->name, rc); |
| 3406 | goto error; |
| 3407 | } |
| 3408 | |
| 3409 | for (i = 0; i < display->ctrl_count; i++) { |
| 3410 | ctrl = &display->ctrl[i]; |
| 3411 | rc = dsi_ctrl_validate_timing(ctrl->ctrl, &adj_mode.timing); |
| 3412 | if (rc) { |
| 3413 | pr_err("[%s] ctrl mode validation failed, rc=%d\n", |
| 3414 | display->name, rc); |
| 3415 | goto error; |
| 3416 | } |
| 3417 | |
| 3418 | rc = dsi_phy_validate_mode(ctrl->phy, &adj_mode.timing); |
| 3419 | if (rc) { |
| 3420 | pr_err("[%s] phy mode validation failed, rc=%d\n", |
| 3421 | display->name, rc); |
| 3422 | goto error; |
| 3423 | } |
| 3424 | } |
| 3425 | |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3426 | if ((flags & DSI_VALIDATE_FLAG_ALLOW_ADJUST) && |
Lloyd Atkinson | 7d12ce0 | 2016-12-13 11:32:57 -0500 | [diff] [blame] | 3427 | (mode->dsi_mode_flags & DSI_MODE_FLAG_SEAMLESS)) { |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3428 | rc = dsi_display_validate_mode_seamless(display, mode); |
| 3429 | if (rc) { |
| 3430 | pr_err("[%s] seamless not possible rc=%d\n", |
| 3431 | display->name, rc); |
| 3432 | goto error; |
| 3433 | } |
| 3434 | } |
| 3435 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3436 | error: |
| 3437 | mutex_unlock(&display->display_lock); |
| 3438 | return rc; |
| 3439 | } |
| 3440 | |
| 3441 | int dsi_display_set_mode(struct dsi_display *display, |
| 3442 | struct dsi_display_mode *mode, |
| 3443 | u32 flags) |
| 3444 | { |
| 3445 | int rc = 0; |
| 3446 | struct dsi_display_mode adj_mode; |
| 3447 | |
| 3448 | if (!display || !mode) { |
| 3449 | pr_err("Invalid params\n"); |
| 3450 | return -EINVAL; |
| 3451 | } |
| 3452 | |
| 3453 | mutex_lock(&display->display_lock); |
| 3454 | |
| 3455 | adj_mode = *mode; |
Ajay Singh Parmar | 62f795b | 2016-06-10 23:20:23 -0700 | [diff] [blame] | 3456 | adjust_timing_by_ctrl_count(display, &adj_mode); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3457 | |
| 3458 | rc = dsi_display_validate_mode_set(display, &adj_mode, flags); |
| 3459 | if (rc) { |
| 3460 | pr_err("[%s] mode cannot be set\n", display->name); |
| 3461 | goto error; |
| 3462 | } |
| 3463 | |
| 3464 | rc = dsi_display_set_mode_sub(display, &adj_mode, flags); |
| 3465 | if (rc) { |
| 3466 | pr_err("[%s] failed to set mode\n", display->name); |
| 3467 | goto error; |
| 3468 | } |
| 3469 | error: |
| 3470 | mutex_unlock(&display->display_lock); |
| 3471 | return rc; |
| 3472 | } |
| 3473 | |
| 3474 | int dsi_display_set_tpg_state(struct dsi_display *display, bool enable) |
| 3475 | { |
| 3476 | int rc = 0; |
| 3477 | int i; |
| 3478 | struct dsi_display_ctrl *ctrl; |
| 3479 | |
| 3480 | if (!display) { |
| 3481 | pr_err("Invalid params\n"); |
| 3482 | return -EINVAL; |
| 3483 | } |
| 3484 | |
| 3485 | for (i = 0; i < display->ctrl_count; i++) { |
| 3486 | ctrl = &display->ctrl[i]; |
| 3487 | rc = dsi_ctrl_set_tpg_state(ctrl->ctrl, enable); |
| 3488 | if (rc) { |
| 3489 | pr_err("[%s] failed to set tpg state for host_%d\n", |
| 3490 | display->name, i); |
| 3491 | goto error; |
| 3492 | } |
| 3493 | } |
| 3494 | |
| 3495 | display->is_tpg_enabled = enable; |
| 3496 | error: |
| 3497 | return rc; |
| 3498 | } |
| 3499 | |
| 3500 | int dsi_display_prepare(struct dsi_display *display) |
| 3501 | { |
| 3502 | int rc = 0; |
| 3503 | |
| 3504 | if (!display) { |
| 3505 | pr_err("Invalid params\n"); |
| 3506 | return -EINVAL; |
| 3507 | } |
| 3508 | |
| 3509 | mutex_lock(&display->display_lock); |
| 3510 | |
| 3511 | rc = dsi_panel_pre_prepare(display->panel); |
| 3512 | if (rc) { |
| 3513 | pr_err("[%s] panel pre-prepare failed, rc=%d\n", |
| 3514 | display->name, rc); |
| 3515 | goto error; |
| 3516 | } |
| 3517 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3518 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3519 | DSI_CORE_CLK, DSI_CLK_ON); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3520 | if (rc) { |
| 3521 | pr_err("[%s] failed to enable DSI core clocks, rc=%d\n", |
| 3522 | display->name, rc); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3523 | goto error_panel_post_unprep; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3524 | } |
| 3525 | |
| 3526 | rc = dsi_display_phy_sw_reset(display); |
| 3527 | if (rc) { |
| 3528 | pr_err("[%s] failed to reset phy, rc=%d\n", display->name, rc); |
| 3529 | goto error_ctrl_clk_off; |
| 3530 | } |
| 3531 | |
| 3532 | rc = dsi_display_phy_enable(display); |
| 3533 | if (rc) { |
| 3534 | pr_err("[%s] failed to enable DSI PHY, rc=%d\n", |
| 3535 | display->name, rc); |
| 3536 | goto error_ctrl_clk_off; |
| 3537 | } |
| 3538 | |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3539 | rc = dsi_display_set_clk_src(display); |
| 3540 | if (rc) { |
| 3541 | pr_err("[%s] failed to set DSI link clock source, rc=%d\n", |
| 3542 | display->name, rc); |
| 3543 | goto error_phy_disable; |
| 3544 | } |
| 3545 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3546 | rc = dsi_display_ctrl_init(display); |
| 3547 | if (rc) { |
| 3548 | pr_err("[%s] failed to setup DSI controller, rc=%d\n", |
| 3549 | display->name, rc); |
| 3550 | goto error_phy_disable; |
| 3551 | } |
| 3552 | |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3553 | rc = dsi_display_ctrl_host_enable(display); |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3554 | if (rc) { |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3555 | pr_err("[%s] failed to enable DSI host, rc=%d\n", |
| 3556 | display->name, rc); |
Veera Sundaram Sankaran | 518a863 | 2017-05-01 16:37:55 -0700 | [diff] [blame] | 3557 | goto error_ctrl_deinit; |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3558 | } |
| 3559 | |
| 3560 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3561 | DSI_LINK_CLK, DSI_CLK_ON); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3562 | if (rc) { |
| 3563 | pr_err("[%s] failed to enable DSI link clocks, rc=%d\n", |
| 3564 | display->name, rc); |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3565 | goto error_host_engine_off; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3566 | } |
| 3567 | |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3568 | rc = dsi_display_soft_reset(display); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3569 | if (rc) { |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3570 | pr_err("[%s] failed soft reset, rc=%d\n", display->name, rc); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3571 | goto error_ctrl_link_off; |
| 3572 | } |
| 3573 | |
| 3574 | rc = dsi_panel_prepare(display->panel); |
| 3575 | if (rc) { |
| 3576 | pr_err("[%s] panel prepare failed, rc=%d\n", display->name, rc); |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3577 | goto error_ctrl_link_off; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3578 | } |
| 3579 | |
| 3580 | goto error; |
| 3581 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3582 | error_ctrl_link_off: |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3583 | (void)dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3584 | DSI_LINK_CLK, DSI_CLK_OFF); |
Sandeep Panda | db8ae1b | 2017-08-03 15:18:32 -0700 | [diff] [blame^] | 3585 | error_host_engine_off: |
| 3586 | (void)dsi_display_ctrl_host_disable(display); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3587 | error_ctrl_deinit: |
| 3588 | (void)dsi_display_ctrl_deinit(display); |
| 3589 | error_phy_disable: |
| 3590 | (void)dsi_display_phy_disable(display); |
| 3591 | error_ctrl_clk_off: |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3592 | (void)dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3593 | DSI_CORE_CLK, DSI_CLK_OFF); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3594 | error_panel_post_unprep: |
| 3595 | (void)dsi_panel_post_unprepare(display->panel); |
| 3596 | error: |
| 3597 | mutex_unlock(&display->display_lock); |
| 3598 | return rc; |
| 3599 | } |
| 3600 | |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 3601 | static int dsi_display_calc_ctrl_roi(const struct dsi_display *display, |
| 3602 | const struct dsi_display_ctrl *ctrl, |
| 3603 | const struct msm_roi_list *req_rois, |
| 3604 | struct dsi_rect *out_roi) |
| 3605 | { |
| 3606 | const struct dsi_rect *bounds = &ctrl->ctrl->mode_bounds; |
| 3607 | struct dsi_rect req_roi = { 0 }; |
| 3608 | int rc = 0; |
| 3609 | |
| 3610 | if (req_rois->num_rects > display->panel->roi_caps.num_roi) { |
| 3611 | pr_err("request for %d rois greater than max %d\n", |
| 3612 | req_rois->num_rects, |
| 3613 | display->panel->roi_caps.num_roi); |
| 3614 | rc = -EINVAL; |
| 3615 | goto exit; |
| 3616 | } |
| 3617 | |
| 3618 | /** |
| 3619 | * if no rois, user wants to reset back to full resolution |
| 3620 | * note: h_active is already divided by ctrl_count |
| 3621 | */ |
| 3622 | if (!req_rois->num_rects) { |
| 3623 | *out_roi = *bounds; |
| 3624 | goto exit; |
| 3625 | } |
| 3626 | |
| 3627 | /* intersect with the bounds */ |
| 3628 | req_roi.x = req_rois->roi[0].x1; |
| 3629 | req_roi.y = req_rois->roi[0].y1; |
| 3630 | req_roi.w = req_rois->roi[0].x2 - req_rois->roi[0].x1; |
| 3631 | req_roi.h = req_rois->roi[0].y2 - req_rois->roi[0].y1; |
| 3632 | dsi_rect_intersect(&req_roi, bounds, out_roi); |
| 3633 | |
| 3634 | exit: |
| 3635 | /* adjust the ctrl origin to be top left within the ctrl */ |
| 3636 | out_roi->x = out_roi->x - bounds->x; |
| 3637 | |
| 3638 | pr_debug("ctrl%d:%d: req (%d,%d,%d,%d) bnd (%d,%d,%d,%d) out (%d,%d,%d,%d)\n", |
| 3639 | ctrl->dsi_ctrl_idx, ctrl->ctrl->cell_index, |
| 3640 | req_roi.x, req_roi.y, req_roi.w, req_roi.h, |
| 3641 | bounds->x, bounds->y, bounds->w, bounds->h, |
| 3642 | out_roi->x, out_roi->y, out_roi->w, out_roi->h); |
| 3643 | |
| 3644 | return rc; |
| 3645 | } |
| 3646 | |
| 3647 | static int dsi_display_set_roi(struct dsi_display *display, |
| 3648 | struct msm_roi_list *rois) |
| 3649 | { |
| 3650 | int rc = 0; |
| 3651 | int i; |
| 3652 | |
| 3653 | if (!display || !rois || !display->panel) |
| 3654 | return -EINVAL; |
| 3655 | |
| 3656 | if (!display->panel->roi_caps.enabled) |
| 3657 | return 0; |
| 3658 | |
| 3659 | for (i = 0; i < display->ctrl_count; i++) { |
| 3660 | struct dsi_display_ctrl *ctrl = &display->ctrl[i]; |
| 3661 | struct dsi_rect ctrl_roi; |
| 3662 | bool changed = false; |
| 3663 | |
| 3664 | rc = dsi_display_calc_ctrl_roi(display, ctrl, rois, &ctrl_roi); |
| 3665 | if (rc) { |
| 3666 | pr_err("dsi_display_calc_ctrl_roi failed rc %d\n", rc); |
| 3667 | return rc; |
| 3668 | } |
| 3669 | |
| 3670 | rc = dsi_ctrl_set_roi(ctrl->ctrl, &ctrl_roi, &changed); |
| 3671 | if (rc) { |
| 3672 | pr_err("dsi_ctrl_set_roi failed rc %d\n", rc); |
| 3673 | return rc; |
| 3674 | } |
| 3675 | |
| 3676 | if (!changed) |
| 3677 | continue; |
| 3678 | |
| 3679 | /* send the new roi to the panel via dcs commands */ |
| 3680 | rc = dsi_panel_send_roi_dcs(display->panel, i, &ctrl_roi); |
| 3681 | if (rc) { |
| 3682 | pr_err("dsi_panel_set_roi failed rc %d\n", rc); |
| 3683 | return rc; |
| 3684 | } |
| 3685 | |
| 3686 | /* re-program the ctrl with the timing based on the new roi */ |
| 3687 | rc = dsi_ctrl_setup(ctrl->ctrl); |
| 3688 | if (rc) { |
| 3689 | pr_err("dsi_ctrl_setup failed rc %d\n", rc); |
| 3690 | return rc; |
| 3691 | } |
| 3692 | } |
| 3693 | |
| 3694 | return rc; |
| 3695 | } |
| 3696 | |
Lloyd Atkinson | 05d7551 | 2017-01-17 14:45:51 -0500 | [diff] [blame] | 3697 | int dsi_display_pre_kickoff(struct dsi_display *display, |
| 3698 | struct msm_display_kickoff_params *params) |
| 3699 | { |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 3700 | int rc = 0; |
| 3701 | |
Rajkumar Subbiah | 01e6dd64 | 2017-07-05 14:47:47 -0400 | [diff] [blame] | 3702 | /* check and setup MISR */ |
| 3703 | if (display->misr_enable) |
| 3704 | _dsi_display_setup_misr(display); |
| 3705 | |
Lloyd Atkinson | e53b737 | 2017-03-22 17:16:47 -0400 | [diff] [blame] | 3706 | rc = dsi_display_set_roi(display, params->rois); |
| 3707 | |
| 3708 | return rc; |
Lloyd Atkinson | 05d7551 | 2017-01-17 14:45:51 -0500 | [diff] [blame] | 3709 | } |
| 3710 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3711 | int dsi_display_enable(struct dsi_display *display) |
| 3712 | { |
| 3713 | int rc = 0; |
| 3714 | |
| 3715 | if (!display) { |
| 3716 | pr_err("Invalid params\n"); |
| 3717 | return -EINVAL; |
| 3718 | } |
| 3719 | |
| 3720 | mutex_lock(&display->display_lock); |
| 3721 | |
| 3722 | rc = dsi_panel_enable(display->panel); |
| 3723 | if (rc) { |
| 3724 | pr_err("[%s] failed to enable DSI panel, rc=%d\n", |
| 3725 | display->name, rc); |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 3726 | goto error; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3727 | } |
| 3728 | |
Alexander Beykun | ac18235 | 2017-02-27 17:46:51 -0500 | [diff] [blame] | 3729 | if (display->panel->dsc_enabled) { |
| 3730 | display->panel->dsc.pic_width *= display->ctrl_count; |
| 3731 | rc = dsi_panel_update_pps(display->panel); |
| 3732 | if (rc) { |
| 3733 | pr_err("[%s] panel pps cmd update failed, rc=%d\n", |
| 3734 | display->name, rc); |
| 3735 | goto error; |
| 3736 | } |
| 3737 | } |
| 3738 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 3739 | if (display->config.panel_mode == DSI_OP_VIDEO_MODE) { |
| 3740 | rc = dsi_display_vid_engine_enable(display); |
| 3741 | if (rc) { |
| 3742 | pr_err("[%s]failed to enable DSI video engine, rc=%d\n", |
| 3743 | display->name, rc); |
| 3744 | goto error_disable_panel; |
| 3745 | } |
| 3746 | } else if (display->config.panel_mode == DSI_OP_CMD_MODE) { |
| 3747 | rc = dsi_display_cmd_engine_enable(display); |
| 3748 | if (rc) { |
| 3749 | pr_err("[%s]failed to enable DSI cmd engine, rc=%d\n", |
| 3750 | display->name, rc); |
| 3751 | goto error_disable_panel; |
| 3752 | } |
| 3753 | } else { |
| 3754 | pr_err("[%s] Invalid configuration\n", display->name); |
| 3755 | rc = -EINVAL; |
| 3756 | goto error_disable_panel; |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3757 | } |
| 3758 | |
| 3759 | goto error; |
| 3760 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 3761 | error_disable_panel: |
| 3762 | (void)dsi_panel_disable(display->panel); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3763 | error: |
| 3764 | mutex_unlock(&display->display_lock); |
| 3765 | return rc; |
| 3766 | } |
| 3767 | |
| 3768 | int dsi_display_post_enable(struct dsi_display *display) |
| 3769 | { |
| 3770 | int rc = 0; |
| 3771 | |
| 3772 | if (!display) { |
| 3773 | pr_err("Invalid params\n"); |
| 3774 | return -EINVAL; |
| 3775 | } |
| 3776 | |
| 3777 | mutex_lock(&display->display_lock); |
| 3778 | |
| 3779 | rc = dsi_panel_post_enable(display->panel); |
| 3780 | if (rc) |
| 3781 | pr_err("[%s] panel post-enable failed, rc=%d\n", |
| 3782 | display->name, rc); |
| 3783 | |
Veera Sundaram Sankaran | 4e10916 | 2017-04-21 10:36:46 -0700 | [diff] [blame] | 3784 | /* remove the clk vote for CMD mode panels */ |
| 3785 | if (display->config.panel_mode == DSI_OP_CMD_MODE) |
| 3786 | dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3787 | DSI_ALL_CLKS, DSI_CLK_OFF); |
| 3788 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3789 | mutex_unlock(&display->display_lock); |
| 3790 | return rc; |
| 3791 | } |
| 3792 | |
| 3793 | int dsi_display_pre_disable(struct dsi_display *display) |
| 3794 | { |
| 3795 | int rc = 0; |
| 3796 | |
| 3797 | if (!display) { |
| 3798 | pr_err("Invalid params\n"); |
| 3799 | return -EINVAL; |
| 3800 | } |
| 3801 | |
| 3802 | mutex_lock(&display->display_lock); |
| 3803 | |
Veera Sundaram Sankaran | 4e10916 | 2017-04-21 10:36:46 -0700 | [diff] [blame] | 3804 | /* enable the clk vote for CMD mode panels */ |
| 3805 | if (display->config.panel_mode == DSI_OP_CMD_MODE) |
| 3806 | dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3807 | DSI_ALL_CLKS, DSI_CLK_ON); |
| 3808 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3809 | rc = dsi_panel_pre_disable(display->panel); |
| 3810 | if (rc) |
| 3811 | pr_err("[%s] panel pre-disable failed, rc=%d\n", |
| 3812 | display->name, rc); |
| 3813 | |
| 3814 | mutex_unlock(&display->display_lock); |
| 3815 | return rc; |
| 3816 | } |
| 3817 | |
| 3818 | int dsi_display_disable(struct dsi_display *display) |
| 3819 | { |
| 3820 | int rc = 0; |
| 3821 | |
| 3822 | if (!display) { |
| 3823 | pr_err("Invalid params\n"); |
| 3824 | return -EINVAL; |
| 3825 | } |
| 3826 | |
| 3827 | mutex_lock(&display->display_lock); |
| 3828 | |
| 3829 | rc = dsi_display_wake_up(display); |
| 3830 | if (rc) |
| 3831 | pr_err("[%s] display wake up failed, rc=%d\n", |
| 3832 | display->name, rc); |
| 3833 | |
Ajay Singh Parmar | aa9152d | 2016-05-16 18:02:07 -0700 | [diff] [blame] | 3834 | if (display->config.panel_mode == DSI_OP_VIDEO_MODE) { |
| 3835 | rc = dsi_display_vid_engine_disable(display); |
| 3836 | if (rc) |
| 3837 | pr_err("[%s]failed to disable DSI vid engine, rc=%d\n", |
| 3838 | display->name, rc); |
| 3839 | } else if (display->config.panel_mode == DSI_OP_CMD_MODE) { |
| 3840 | rc = dsi_display_cmd_engine_disable(display); |
| 3841 | if (rc) |
| 3842 | pr_err("[%s]failed to disable DSI cmd engine, rc=%d\n", |
| 3843 | display->name, rc); |
| 3844 | } else { |
| 3845 | pr_err("[%s] Invalid configuration\n", display->name); |
| 3846 | rc = -EINVAL; |
| 3847 | } |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3848 | |
Clarence Ip | 9de0bbc | 2017-03-02 09:56:06 -0500 | [diff] [blame] | 3849 | rc = dsi_panel_disable(display->panel); |
| 3850 | if (rc) |
| 3851 | pr_err("[%s] failed to disable DSI panel, rc=%d\n", |
| 3852 | display->name, rc); |
| 3853 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3854 | mutex_unlock(&display->display_lock); |
| 3855 | return rc; |
| 3856 | } |
| 3857 | |
Alexander Beykun | ac18235 | 2017-02-27 17:46:51 -0500 | [diff] [blame] | 3858 | int dsi_display_update_pps(char *pps_cmd, void *disp) |
| 3859 | { |
| 3860 | struct dsi_display *display; |
| 3861 | |
| 3862 | if (pps_cmd == NULL || disp == NULL) { |
| 3863 | pr_err("Invalid parameter\n"); |
| 3864 | return -EINVAL; |
| 3865 | } |
| 3866 | |
| 3867 | display = disp; |
| 3868 | mutex_lock(&display->display_lock); |
| 3869 | memcpy(display->panel->dsc_pps_cmd, pps_cmd, DSI_CMD_PPS_SIZE); |
| 3870 | mutex_unlock(&display->display_lock); |
| 3871 | |
| 3872 | return 0; |
| 3873 | } |
| 3874 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3875 | int dsi_display_unprepare(struct dsi_display *display) |
| 3876 | { |
| 3877 | int rc = 0; |
| 3878 | |
| 3879 | if (!display) { |
| 3880 | pr_err("Invalid params\n"); |
| 3881 | return -EINVAL; |
| 3882 | } |
| 3883 | |
| 3884 | mutex_lock(&display->display_lock); |
| 3885 | |
| 3886 | rc = dsi_display_wake_up(display); |
| 3887 | if (rc) |
| 3888 | pr_err("[%s] display wake up failed, rc=%d\n", |
| 3889 | display->name, rc); |
| 3890 | |
| 3891 | rc = dsi_panel_unprepare(display->panel); |
| 3892 | if (rc) |
| 3893 | pr_err("[%s] panel unprepare failed, rc=%d\n", |
| 3894 | display->name, rc); |
| 3895 | |
| 3896 | rc = dsi_display_ctrl_host_disable(display); |
| 3897 | if (rc) |
| 3898 | pr_err("[%s] failed to disable DSI host, rc=%d\n", |
| 3899 | display->name, rc); |
| 3900 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3901 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3902 | DSI_LINK_CLK, DSI_CLK_OFF); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3903 | if (rc) |
| 3904 | pr_err("[%s] failed to disable Link clocks, rc=%d\n", |
| 3905 | display->name, rc); |
| 3906 | |
| 3907 | rc = dsi_display_ctrl_deinit(display); |
| 3908 | if (rc) |
| 3909 | pr_err("[%s] failed to deinit controller, rc=%d\n", |
| 3910 | display->name, rc); |
| 3911 | |
| 3912 | rc = dsi_display_phy_disable(display); |
| 3913 | if (rc) |
| 3914 | pr_err("[%s] failed to disable DSI PHY, rc=%d\n", |
| 3915 | display->name, rc); |
| 3916 | |
Padmanabhan Komanduru | dbd2fb0 | 2016-12-02 15:18:49 +0530 | [diff] [blame] | 3917 | rc = dsi_display_clk_ctrl(display->dsi_clk_handle, |
| 3918 | DSI_CORE_CLK, DSI_CLK_OFF); |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3919 | if (rc) |
| 3920 | pr_err("[%s] failed to disable DSI clocks, rc=%d\n", |
| 3921 | display->name, rc); |
| 3922 | |
Ajay Singh Parmar | 571e301 | 2016-05-16 17:55:52 -0700 | [diff] [blame] | 3923 | rc = dsi_panel_post_unprepare(display->panel); |
| 3924 | if (rc) |
| 3925 | pr_err("[%s] panel post-unprepare failed, rc=%d\n", |
| 3926 | display->name, rc); |
| 3927 | |
| 3928 | mutex_unlock(&display->display_lock); |
| 3929 | return rc; |
| 3930 | } |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 3931 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3932 | static int __init dsi_display_register(void) |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 3933 | { |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3934 | dsi_phy_drv_register(); |
| 3935 | dsi_ctrl_drv_register(); |
| 3936 | return platform_driver_register(&dsi_display_driver); |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 3937 | } |
| 3938 | |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3939 | static void __exit dsi_display_unregister(void) |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 3940 | { |
| 3941 | platform_driver_unregister(&dsi_display_driver); |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3942 | dsi_ctrl_drv_unregister(); |
| 3943 | dsi_phy_drv_unregister(); |
Ajay Singh Parmar | 64c1919 | 2016-06-10 16:44:56 -0700 | [diff] [blame] | 3944 | } |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3945 | module_param_string(dsi_display0, dsi_display_primary, MAX_CMDLINE_PARAM_LEN, |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3946 | 0600); |
| 3947 | MODULE_PARM_DESC(dsi_display0, |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3948 | "msm_drm.dsi_display0=<display node>:<configX> where <display node> is 'primary dsi display node name' and <configX> where x represents index in the topology list"); |
| 3949 | module_param_string(dsi_display1, dsi_display_secondary, MAX_CMDLINE_PARAM_LEN, |
Shashank Babu Chinta Venkata | ded9c56 | 2017-03-15 14:43:46 -0700 | [diff] [blame] | 3950 | 0600); |
| 3951 | MODULE_PARM_DESC(dsi_display1, |
Chandan Uddaraju | 7e9613a | 2017-06-01 13:10:55 -0700 | [diff] [blame] | 3952 | "msm_drm.dsi_display1=<display node>:<configX> where <display node> is 'secondary dsi display node name' and <configX> where x represents index in the topology list"); |
Clarence Ip | 3649f8b | 2016-10-31 09:59:44 -0400 | [diff] [blame] | 3953 | module_init(dsi_display_register); |
| 3954 | module_exit(dsi_display_unregister); |