Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1 | /* |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 2 | * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -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 | |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 15 | #define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__ |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 16 | |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/slab.h> |
| 19 | #include <linux/uaccess.h> |
| 20 | #include <linux/debugfs.h> |
| 21 | #include <linux/component.h> |
| 22 | #include <linux/of_irq.h> |
Tatenda Chipeperekwa | b8cbd13 | 2017-07-07 17:43:29 -0700 | [diff] [blame] | 23 | #include <linux/hdcp_qseecom.h> |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 24 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 25 | #include "sde_connector.h" |
| 26 | |
Padmanabhan Komanduru | 4152f39 | 2017-05-11 17:53:55 -0700 | [diff] [blame] | 27 | #include "msm_drv.h" |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 28 | #include "dp_usbpd.h" |
| 29 | #include "dp_parser.h" |
| 30 | #include "dp_power.h" |
| 31 | #include "dp_catalog.h" |
| 32 | #include "dp_aux.h" |
| 33 | #include "dp_link.h" |
| 34 | #include "dp_panel.h" |
| 35 | #include "dp_ctrl.h" |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 36 | #include "dp_audio.h" |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 37 | #include "dp_display.h" |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 38 | #include "sde_hdcp.h" |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 39 | #include "dp_debug.h" |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 40 | |
| 41 | static struct dp_display *g_dp_display; |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 42 | #define HPD_STRING_SIZE 30 |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 43 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 44 | struct dp_hdcp { |
| 45 | void *data; |
| 46 | struct sde_hdcp_ops *ops; |
| 47 | |
| 48 | void *hdcp1; |
| 49 | void *hdcp2; |
| 50 | |
| 51 | int enc_lvl; |
| 52 | |
| 53 | bool auth_state; |
| 54 | bool hdcp1_present; |
| 55 | bool hdcp2_present; |
| 56 | bool feature_enabled; |
| 57 | }; |
| 58 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 59 | struct dp_display_private { |
| 60 | char *name; |
| 61 | int irq; |
| 62 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 63 | /* state variables */ |
| 64 | bool core_initialized; |
| 65 | bool power_on; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 66 | bool audio_supported; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 67 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 68 | struct platform_device *pdev; |
| 69 | struct dentry *root; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 70 | struct completion notification_comp; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 71 | |
| 72 | struct dp_usbpd *usbpd; |
| 73 | struct dp_parser *parser; |
| 74 | struct dp_power *power; |
| 75 | struct dp_catalog *catalog; |
| 76 | struct dp_aux *aux; |
| 77 | struct dp_link *link; |
| 78 | struct dp_panel *panel; |
| 79 | struct dp_ctrl *ctrl; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 80 | struct dp_audio *audio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 81 | struct dp_debug *debug; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 82 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 83 | struct dp_hdcp hdcp; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 84 | |
| 85 | struct dp_usbpd_cb usbpd_cb; |
| 86 | struct dp_display_mode mode; |
| 87 | struct dp_display dp_display; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 88 | struct msm_drm_private *priv; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 89 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 90 | struct workqueue_struct *wq; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 91 | struct delayed_work hdcp_cb_work; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 92 | struct delayed_work connect_work; |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 93 | struct work_struct attention_work; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 94 | struct mutex hdcp_mutex; |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 95 | struct mutex session_lock; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 96 | int hdcp_status; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 97 | unsigned long audio_status; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 98 | }; |
| 99 | |
| 100 | static const struct of_device_id dp_dt_match[] = { |
| 101 | {.compatible = "qcom,dp-display"}, |
| 102 | {} |
| 103 | }; |
| 104 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 105 | static bool dp_display_framework_ready(struct dp_display_private *dp) |
| 106 | { |
| 107 | return dp->dp_display.post_open ? false : true; |
| 108 | } |
| 109 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 110 | static inline bool dp_display_is_hdcp_enabled(struct dp_display_private *dp) |
| 111 | { |
| 112 | return dp->hdcp.feature_enabled && |
| 113 | (dp->hdcp.hdcp1_present || dp->hdcp.hdcp2_present) && |
| 114 | dp->hdcp.ops; |
| 115 | } |
| 116 | |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 117 | static irqreturn_t dp_display_irq(int irq, void *dev_id) |
| 118 | { |
| 119 | struct dp_display_private *dp = dev_id; |
| 120 | |
| 121 | if (!dp) { |
| 122 | pr_err("invalid data\n"); |
| 123 | return IRQ_NONE; |
| 124 | } |
| 125 | |
| 126 | /* DP controller isr */ |
| 127 | dp->ctrl->isr(dp->ctrl); |
| 128 | |
| 129 | /* DP aux isr */ |
| 130 | dp->aux->isr(dp->aux); |
| 131 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 132 | /* HDCP isr */ |
| 133 | if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->isr) { |
| 134 | if (dp->hdcp.ops->isr(dp->hdcp.data)) |
| 135 | pr_err("dp_hdcp_isr failed\n"); |
| 136 | } |
| 137 | |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 138 | return IRQ_HANDLED; |
| 139 | } |
| 140 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 141 | static void dp_display_hdcp_cb_work(struct work_struct *work) |
| 142 | { |
| 143 | struct dp_display_private *dp; |
| 144 | struct delayed_work *dw = to_delayed_work(work); |
| 145 | struct sde_hdcp_ops *ops; |
| 146 | int rc = 0; |
| 147 | u32 hdcp_auth_state; |
| 148 | |
| 149 | dp = container_of(dw, struct dp_display_private, hdcp_cb_work); |
| 150 | |
| 151 | rc = dp->catalog->ctrl.read_hdcp_status(&dp->catalog->ctrl); |
| 152 | if (rc >= 0) { |
| 153 | hdcp_auth_state = (rc >> 20) & 0x3; |
| 154 | pr_debug("hdcp auth state %d\n", hdcp_auth_state); |
| 155 | } |
| 156 | |
| 157 | ops = dp->hdcp.ops; |
| 158 | |
| 159 | switch (dp->hdcp_status) { |
| 160 | case HDCP_STATE_AUTHENTICATING: |
| 161 | pr_debug("start authenticaton\n"); |
| 162 | |
| 163 | if (dp->hdcp.ops && dp->hdcp.ops->authenticate) |
| 164 | rc = dp->hdcp.ops->authenticate(dp->hdcp.data); |
| 165 | |
| 166 | break; |
| 167 | case HDCP_STATE_AUTHENTICATED: |
| 168 | pr_debug("hdcp authenticated\n"); |
| 169 | dp->hdcp.auth_state = true; |
| 170 | break; |
| 171 | case HDCP_STATE_AUTH_FAIL: |
| 172 | dp->hdcp.auth_state = false; |
| 173 | |
| 174 | if (dp->power_on) { |
| 175 | pr_debug("Reauthenticating\n"); |
| 176 | if (ops && ops->reauthenticate) { |
| 177 | rc = ops->reauthenticate(dp->hdcp.data); |
| 178 | if (rc) |
| 179 | pr_err("reauth failed rc=%d\n", rc); |
| 180 | } |
| 181 | } else { |
| 182 | pr_debug("not reauthenticating, cable disconnected\n"); |
| 183 | } |
| 184 | |
| 185 | break; |
| 186 | default: |
| 187 | break; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | static void dp_display_notify_hdcp_status_cb(void *ptr, |
| 192 | enum sde_hdcp_states status) |
| 193 | { |
| 194 | struct dp_display_private *dp = ptr; |
| 195 | |
| 196 | if (!dp) { |
| 197 | pr_err("invalid input\n"); |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | dp->hdcp_status = status; |
| 202 | |
| 203 | if (dp->dp_display.is_connected) |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 204 | queue_delayed_work(dp->wq, &dp->hdcp_cb_work, HZ/4); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | static void dp_display_destroy_hdcp_workqueue(struct dp_display_private *dp) |
| 208 | { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 209 | if (dp->wq) |
| 210 | destroy_workqueue(dp->wq); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | static void dp_display_update_hdcp_info(struct dp_display_private *dp) |
| 214 | { |
| 215 | void *fd = NULL; |
| 216 | struct sde_hdcp_ops *ops = NULL; |
| 217 | |
| 218 | if (!dp) { |
| 219 | pr_err("invalid input\n"); |
| 220 | return; |
| 221 | } |
| 222 | |
| 223 | if (!dp->hdcp.feature_enabled) { |
| 224 | pr_debug("feature not enabled\n"); |
| 225 | return; |
| 226 | } |
| 227 | |
| 228 | fd = dp->hdcp.hdcp2; |
| 229 | if (fd) |
| 230 | ops = sde_dp_hdcp2p2_start(fd); |
| 231 | |
| 232 | if (ops && ops->feature_supported) |
| 233 | dp->hdcp.hdcp2_present = ops->feature_supported(fd); |
| 234 | else |
| 235 | dp->hdcp.hdcp2_present = false; |
| 236 | |
Tatenda Chipeperekwa | b8cbd13 | 2017-07-07 17:43:29 -0700 | [diff] [blame] | 237 | pr_debug("hdcp2p2: %s\n", |
| 238 | dp->hdcp.hdcp2_present ? "supported" : "not supported"); |
| 239 | |
| 240 | if (!dp->hdcp.hdcp2_present) { |
| 241 | dp->hdcp.hdcp1_present = hdcp1_check_if_supported_load_app(); |
| 242 | |
| 243 | if (dp->hdcp.hdcp1_present) { |
| 244 | fd = dp->hdcp.hdcp1; |
| 245 | ops = sde_hdcp_1x_start(fd); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | pr_debug("hdcp1x: %s\n", |
| 250 | dp->hdcp.hdcp1_present ? "supported" : "not supported"); |
| 251 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 252 | if (dp->hdcp.hdcp2_present || dp->hdcp.hdcp1_present) { |
| 253 | dp->hdcp.data = fd; |
| 254 | dp->hdcp.ops = ops; |
| 255 | } else { |
| 256 | dp->hdcp.data = NULL; |
| 257 | dp->hdcp.ops = NULL; |
| 258 | } |
| 259 | } |
| 260 | |
| 261 | static void dp_display_deinitialize_hdcp(struct dp_display_private *dp) |
| 262 | { |
| 263 | if (!dp) { |
| 264 | pr_err("invalid input\n"); |
| 265 | return; |
| 266 | } |
| 267 | |
| 268 | sde_dp_hdcp2p2_deinit(dp->hdcp.data); |
| 269 | dp_display_destroy_hdcp_workqueue(dp); |
| 270 | if (&dp->hdcp_mutex) |
| 271 | mutex_destroy(&dp->hdcp_mutex); |
| 272 | } |
| 273 | |
| 274 | static int dp_display_initialize_hdcp(struct dp_display_private *dp) |
| 275 | { |
| 276 | struct sde_hdcp_init_data hdcp_init_data; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 277 | int rc = 0; |
| 278 | |
| 279 | if (!dp) { |
| 280 | pr_err("invalid input\n"); |
| 281 | return -EINVAL; |
| 282 | } |
| 283 | |
| 284 | mutex_init(&dp->hdcp_mutex); |
| 285 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 286 | hdcp_init_data.client_id = HDCP_CLIENT_DP; |
| 287 | hdcp_init_data.drm_aux = dp->aux->drm_aux; |
| 288 | hdcp_init_data.cb_data = (void *)dp; |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 289 | hdcp_init_data.workq = dp->wq; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 290 | hdcp_init_data.mutex = &dp->hdcp_mutex; |
| 291 | hdcp_init_data.sec_access = true; |
| 292 | hdcp_init_data.notify_status = dp_display_notify_hdcp_status_cb; |
| 293 | hdcp_init_data.core_io = &dp->parser->io.ctrl_io; |
Samantha Tran | 45c3e5c | 2017-10-19 12:51:09 -0700 | [diff] [blame] | 294 | hdcp_init_data.dp_ahb = &dp->parser->io.dp_ahb; |
| 295 | hdcp_init_data.dp_aux = &dp->parser->io.dp_aux; |
| 296 | hdcp_init_data.dp_link = &dp->parser->io.dp_link; |
| 297 | hdcp_init_data.dp_p0 = &dp->parser->io.dp_p0; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 298 | hdcp_init_data.qfprom_io = &dp->parser->io.qfprom_io; |
| 299 | hdcp_init_data.hdcp_io = &dp->parser->io.hdcp_io; |
| 300 | hdcp_init_data.revision = &dp->panel->link_info.revision; |
| 301 | |
Tatenda Chipeperekwa | b8cbd13 | 2017-07-07 17:43:29 -0700 | [diff] [blame] | 302 | dp->hdcp.hdcp1 = sde_hdcp_1x_init(&hdcp_init_data); |
| 303 | if (IS_ERR_OR_NULL(dp->hdcp.hdcp1)) { |
| 304 | pr_err("Error initializing HDCP 1.x\n"); |
| 305 | rc = -EINVAL; |
| 306 | goto error; |
| 307 | } |
| 308 | |
| 309 | pr_debug("HDCP 1.3 initialized\n"); |
| 310 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 311 | dp->hdcp.hdcp2 = sde_dp_hdcp2p2_init(&hdcp_init_data); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 312 | if (IS_ERR_OR_NULL(dp->hdcp.hdcp2)) { |
| 313 | pr_err("Error initializing HDCP 2.x\n"); |
| 314 | rc = -EINVAL; |
| 315 | goto error; |
| 316 | } |
| 317 | |
| 318 | pr_debug("HDCP 2.2 initialized\n"); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 319 | |
| 320 | dp->hdcp.feature_enabled = true; |
| 321 | |
| 322 | return 0; |
| 323 | error: |
| 324 | dp_display_deinitialize_hdcp(dp); |
| 325 | return rc; |
| 326 | } |
| 327 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 328 | static int dp_display_bind(struct device *dev, struct device *master, |
| 329 | void *data) |
| 330 | { |
| 331 | int rc = 0; |
| 332 | struct dp_display_private *dp; |
| 333 | struct drm_device *drm; |
| 334 | struct platform_device *pdev = to_platform_device(dev); |
| 335 | |
| 336 | if (!dev || !pdev || !master) { |
| 337 | pr_err("invalid param(s), dev %pK, pdev %pK, master %pK\n", |
| 338 | dev, pdev, master); |
| 339 | rc = -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 340 | goto end; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | drm = dev_get_drvdata(master); |
| 344 | dp = platform_get_drvdata(pdev); |
| 345 | if (!drm || !dp) { |
| 346 | pr_err("invalid param(s), drm %pK, dp %pK\n", |
| 347 | drm, dp); |
| 348 | rc = -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 349 | goto end; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | dp->dp_display.drm_dev = drm; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 353 | dp->priv = drm->dev_private; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 354 | end: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 355 | return rc; |
| 356 | } |
| 357 | |
| 358 | static void dp_display_unbind(struct device *dev, struct device *master, |
| 359 | void *data) |
| 360 | { |
| 361 | struct dp_display_private *dp; |
| 362 | struct platform_device *pdev = to_platform_device(dev); |
| 363 | |
| 364 | if (!dev || !pdev) { |
| 365 | pr_err("invalid param(s)\n"); |
| 366 | return; |
| 367 | } |
| 368 | |
| 369 | dp = platform_get_drvdata(pdev); |
| 370 | if (!dp) { |
| 371 | pr_err("Invalid params\n"); |
| 372 | return; |
| 373 | } |
| 374 | |
Padmanabhan Komanduru | 4152f39 | 2017-05-11 17:53:55 -0700 | [diff] [blame] | 375 | (void)dp->power->power_client_deinit(dp->power); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 376 | (void)dp->aux->drm_aux_deregister(dp->aux); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 377 | dp_display_deinitialize_hdcp(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 378 | } |
| 379 | |
| 380 | static const struct component_ops dp_display_comp_ops = { |
| 381 | .bind = dp_display_bind, |
| 382 | .unbind = dp_display_unbind, |
| 383 | }; |
| 384 | |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 385 | static bool dp_display_is_ds_bridge(struct dp_panel *panel) |
| 386 | { |
| 387 | return (panel->dpcd[DP_DOWNSTREAMPORT_PRESENT] & |
| 388 | DP_DWN_STRM_PORT_PRESENT); |
| 389 | } |
| 390 | |
| 391 | static bool dp_display_is_sink_count_zero(struct dp_display_private *dp) |
| 392 | { |
| 393 | return dp_display_is_ds_bridge(dp->panel) && |
| 394 | (dp->link->sink_count.count == 0); |
| 395 | } |
| 396 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 397 | static void dp_display_send_hpd_event(struct dp_display_private *dp) |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 398 | { |
| 399 | struct drm_device *dev = NULL; |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 400 | struct drm_connector *connector; |
| 401 | char name[HPD_STRING_SIZE], status[HPD_STRING_SIZE], |
| 402 | bpp[HPD_STRING_SIZE], pattern[HPD_STRING_SIZE]; |
| 403 | char *envp[5]; |
| 404 | |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 405 | connector = dp->dp_display.connector; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 406 | |
| 407 | if (!connector) { |
| 408 | pr_err("connector not set\n"); |
| 409 | return; |
| 410 | } |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 411 | |
| 412 | connector->status = connector->funcs->detect(connector, false); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 413 | |
| 414 | dev = dp->dp_display.connector->dev; |
| 415 | |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 416 | snprintf(name, HPD_STRING_SIZE, "name=%s", connector->name); |
| 417 | snprintf(status, HPD_STRING_SIZE, "status=%s", |
| 418 | drm_get_connector_status_name(connector->status)); |
| 419 | snprintf(bpp, HPD_STRING_SIZE, "bpp=%d", |
| 420 | dp_link_bit_depth_to_bpp( |
| 421 | dp->link->test_video.test_bit_depth)); |
| 422 | snprintf(pattern, HPD_STRING_SIZE, "pattern=%d", |
| 423 | dp->link->test_video.test_video_pattern); |
| 424 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 425 | pr_debug("[%s]:[%s] [%s] [%s]\n", name, status, bpp, pattern); |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 426 | envp[0] = name; |
| 427 | envp[1] = status; |
| 428 | envp[2] = bpp; |
| 429 | envp[3] = pattern; |
| 430 | envp[4] = NULL; |
| 431 | kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, |
| 432 | envp); |
| 433 | } |
| 434 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 435 | static void dp_display_post_open(struct dp_display *dp_display) |
| 436 | { |
| 437 | struct drm_connector *connector; |
| 438 | struct dp_display_private *dp; |
| 439 | |
| 440 | if (!dp_display) { |
| 441 | pr_err("invalid input\n"); |
| 442 | return; |
| 443 | } |
| 444 | |
| 445 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 446 | if (IS_ERR_OR_NULL(dp)) { |
| 447 | pr_err("invalid params\n"); |
| 448 | return; |
| 449 | } |
| 450 | |
| 451 | connector = dp->dp_display.connector; |
| 452 | |
| 453 | if (!connector) { |
| 454 | pr_err("connector not set\n"); |
| 455 | return; |
| 456 | } |
| 457 | |
| 458 | /* if cable is already connected, send notification */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 459 | if (dp->usbpd->hpd_high) |
| 460 | queue_delayed_work(dp->wq, &dp->connect_work, HZ * 10); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 461 | else |
| 462 | dp_display->post_open = NULL; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 463 | } |
| 464 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 465 | static int dp_display_send_hpd_notification(struct dp_display_private *dp, |
| 466 | bool hpd) |
| 467 | { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 468 | u32 timeout_sec; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 469 | int ret = 0; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 470 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 471 | dp->dp_display.is_connected = hpd; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 472 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 473 | if (dp_display_framework_ready(dp)) |
| 474 | timeout_sec = 5; |
| 475 | else |
| 476 | timeout_sec = 10; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 477 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 478 | dp->aux->state |= DP_STATE_NOTIFICATION_SENT; |
| 479 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 480 | reinit_completion(&dp->notification_comp); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 481 | dp_display_send_hpd_event(dp); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 482 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 483 | if (!wait_for_completion_timeout(&dp->notification_comp, |
| 484 | HZ * timeout_sec)) { |
Tatenda Chipeperekwa | 8ce1d5f | 2017-08-07 18:44:21 -0700 | [diff] [blame] | 485 | pr_warn("%s timeout\n", hpd ? "connect" : "disconnect"); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 486 | ret = -EINVAL; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 487 | } |
| 488 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 489 | dp->aux->state &= ~DP_STATE_NOTIFICATION_SENT; |
| 490 | |
| 491 | return ret; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 492 | } |
| 493 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 494 | static int dp_display_process_hpd_high(struct dp_display_private *dp) |
| 495 | { |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 496 | int rc = 0; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 497 | struct edid *edid; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 498 | |
Tatenda Chipeperekwa | 344498e | 2017-09-06 12:34:36 -0700 | [diff] [blame] | 499 | dp->aux->init(dp->aux, dp->parser->aux_cfg); |
| 500 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 501 | if (dp->debug->psm_enabled) { |
| 502 | dp->link->psm_config(dp->link, &dp->panel->link_info, false); |
| 503 | dp->debug->psm_enabled = false; |
| 504 | } |
Padmanabhan Komanduru | b6f7c6f | 2017-09-05 18:50:30 +0530 | [diff] [blame] | 505 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 506 | if (!dp->dp_display.connector) |
| 507 | return 0; |
| 508 | |
Padmanabhan Komanduru | da8b3d0 | 2017-12-22 15:45:12 +0530 | [diff] [blame] | 509 | rc = dp->panel->read_sink_caps(dp->panel, |
| 510 | dp->dp_display.connector, dp->usbpd->multi_func); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 511 | if (rc) { |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 512 | /* |
| 513 | * ETIMEDOUT --> cable may have been removed |
| 514 | * ENOTCONN --> no downstream device connected |
| 515 | */ |
| 516 | if (rc == -ETIMEDOUT || rc == -ENOTCONN) |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 517 | goto end; |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 518 | else |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 519 | goto notify; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 520 | } |
| 521 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 522 | edid = dp->panel->edid_ctrl->edid; |
| 523 | |
| 524 | dp->audio_supported = drm_detect_monitor_audio(edid); |
| 525 | |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 526 | dp->link->process_request(dp->link); |
Padmanabhan Komanduru | 504e289 | 2017-09-19 20:38:31 +0530 | [diff] [blame] | 527 | dp->panel->handle_sink_request(dp->panel); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 528 | |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 529 | dp->dp_display.max_pclk_khz = dp->parser->max_pclk_khz; |
Padmanabhan Komanduru | b6f7c6f | 2017-09-05 18:50:30 +0530 | [diff] [blame] | 530 | notify: |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 531 | dp_display_send_hpd_notification(dp, true); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 532 | |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 533 | end: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 534 | return rc; |
| 535 | } |
| 536 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 537 | static void dp_display_host_init(struct dp_display_private *dp) |
| 538 | { |
| 539 | bool flip = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 540 | bool reset; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 541 | |
| 542 | if (dp->core_initialized) { |
| 543 | pr_debug("DP core already initialized\n"); |
| 544 | return; |
| 545 | } |
| 546 | |
| 547 | if (dp->usbpd->orientation == ORIENTATION_CC2) |
| 548 | flip = true; |
| 549 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 550 | reset = dp->debug->sim_mode ? false : !dp->usbpd->multi_func; |
| 551 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 552 | dp->power->init(dp->power, flip); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 553 | dp->ctrl->init(dp->ctrl, flip, reset); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 554 | enable_irq(dp->irq); |
| 555 | dp->core_initialized = true; |
| 556 | } |
| 557 | |
| 558 | static void dp_display_host_deinit(struct dp_display_private *dp) |
| 559 | { |
| 560 | if (!dp->core_initialized) { |
| 561 | pr_debug("DP core already off\n"); |
| 562 | return; |
| 563 | } |
| 564 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 565 | dp->ctrl->deinit(dp->ctrl); |
| 566 | dp->power->deinit(dp->power); |
| 567 | disable_irq(dp->irq); |
| 568 | dp->core_initialized = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 569 | dp->aux->state = 0; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 570 | } |
| 571 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 572 | static int dp_display_process_hpd_low(struct dp_display_private *dp) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 573 | { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 574 | int rc = 0; |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 575 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 576 | if (!dp->dp_display.is_connected) { |
| 577 | pr_debug("HPD already off\n"); |
| 578 | return 0; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 579 | } |
| 580 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 581 | if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->off) |
| 582 | dp->hdcp.ops->off(dp->hdcp.data); |
| 583 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 584 | if (dp->audio_supported) |
| 585 | dp->audio->off(dp->audio); |
| 586 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 587 | dp->audio_status = -ENODEV; |
| 588 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 589 | rc = dp_display_send_hpd_notification(dp, false); |
Tatenda Chipeperekwa | 344498e | 2017-09-06 12:34:36 -0700 | [diff] [blame] | 590 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 591 | dp->panel->video_test = false; |
| 592 | |
| 593 | return rc; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 594 | } |
| 595 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 596 | static int dp_display_usbpd_configure_cb(struct device *dev) |
| 597 | { |
| 598 | int rc = 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 599 | struct dp_display_private *dp; |
| 600 | |
| 601 | if (!dev) { |
| 602 | pr_err("invalid dev\n"); |
| 603 | rc = -EINVAL; |
| 604 | goto end; |
| 605 | } |
| 606 | |
| 607 | dp = dev_get_drvdata(dev); |
| 608 | if (!dp) { |
| 609 | pr_err("no driver data found\n"); |
| 610 | rc = -ENODEV; |
| 611 | goto end; |
| 612 | } |
| 613 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 614 | dp_display_host_init(dp); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 615 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 616 | /* check for hpd high and framework ready */ |
| 617 | if (dp->usbpd->hpd_high && dp_display_framework_ready(dp)) |
| 618 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 619 | end: |
| 620 | return rc; |
| 621 | } |
| 622 | |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 623 | static void dp_display_clean(struct dp_display_private *dp) |
| 624 | { |
| 625 | if (dp_display_is_hdcp_enabled(dp)) { |
| 626 | dp->hdcp_status = HDCP_STATE_INACTIVE; |
| 627 | |
| 628 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 629 | if (dp->hdcp.ops->off) |
| 630 | dp->hdcp.ops->off(dp->hdcp.data); |
| 631 | } |
| 632 | |
| 633 | dp->ctrl->push_idle(dp->ctrl); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 634 | dp->ctrl->off(dp->ctrl); |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 635 | dp->panel->deinit(dp->panel); |
| 636 | dp->aux->deinit(dp->aux); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 637 | dp->power_on = false; |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 638 | } |
| 639 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 640 | static int dp_display_handle_disconnect(struct dp_display_private *dp) |
| 641 | { |
| 642 | int rc; |
| 643 | |
| 644 | rc = dp_display_process_hpd_low(dp); |
| 645 | |
| 646 | mutex_lock(&dp->session_lock); |
| 647 | if (rc && dp->power_on) |
| 648 | dp_display_clean(dp); |
| 649 | |
| 650 | if (!dp->usbpd->alt_mode_cfg_done) |
| 651 | dp_display_host_deinit(dp); |
| 652 | |
| 653 | mutex_unlock(&dp->session_lock); |
| 654 | |
| 655 | return rc; |
| 656 | } |
| 657 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 658 | static int dp_display_usbpd_disconnect_cb(struct device *dev) |
| 659 | { |
| 660 | int rc = 0; |
| 661 | struct dp_display_private *dp; |
| 662 | |
| 663 | if (!dev) { |
| 664 | pr_err("invalid dev\n"); |
| 665 | rc = -EINVAL; |
| 666 | goto end; |
| 667 | } |
| 668 | |
| 669 | dp = dev_get_drvdata(dev); |
| 670 | if (!dp) { |
| 671 | pr_err("no driver data found\n"); |
| 672 | rc = -ENODEV; |
| 673 | goto end; |
| 674 | } |
| 675 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 676 | /* |
| 677 | * In case cable/dongle is disconnected during adb shell stop, |
| 678 | * reset psm_enabled flag to false since it is no more needed |
| 679 | */ |
| 680 | if (dp->dp_display.post_open) |
| 681 | dp->debug->psm_enabled = false; |
| 682 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 683 | if (dp->debug->psm_enabled) |
| 684 | dp->link->psm_config(dp->link, &dp->panel->link_info, true); |
| 685 | |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 686 | /* cancel any pending request */ |
| 687 | dp->ctrl->abort(dp->ctrl); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 688 | dp->aux->abort(dp->aux); |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 689 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 690 | /* wait for idle state */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 691 | cancel_delayed_work(&dp->connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 692 | flush_workqueue(dp->wq); |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 693 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 694 | dp_display_handle_disconnect(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 695 | end: |
| 696 | return rc; |
| 697 | } |
| 698 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 699 | static void dp_display_handle_maintenance_req(struct dp_display_private *dp) |
| 700 | { |
| 701 | mutex_lock(&dp->audio->ops_lock); |
| 702 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 703 | if (dp->audio_supported && !IS_ERR_VALUE(dp->audio_status)) |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 704 | dp->audio->off(dp->audio); |
| 705 | |
| 706 | dp->ctrl->link_maintenance(dp->ctrl); |
| 707 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 708 | if (dp->audio_supported && !IS_ERR_VALUE(dp->audio_status)) |
| 709 | dp->audio_status = dp->audio->on(dp->audio); |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 710 | |
| 711 | mutex_unlock(&dp->audio->ops_lock); |
| 712 | } |
| 713 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 714 | static void dp_display_attention_work(struct work_struct *work) |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 715 | { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 716 | struct dp_display_private *dp = container_of(work, |
| 717 | struct dp_display_private, attention_work); |
| 718 | |
| 719 | if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->cp_irq) { |
| 720 | if (!dp->hdcp.ops->cp_irq(dp->hdcp.data)) |
| 721 | return; |
| 722 | } |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 723 | |
Padmanabhan Komanduru | 0cc4e56 | 2017-08-28 17:03:06 +0530 | [diff] [blame] | 724 | if (dp->link->sink_request & DS_PORT_STATUS_CHANGED) { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 725 | dp_display_handle_disconnect(dp); |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 726 | |
| 727 | if (dp_display_is_sink_count_zero(dp)) { |
| 728 | pr_debug("sink count is zero, nothing to do\n"); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 729 | return; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 730 | } |
| 731 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 732 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 733 | return; |
| 734 | } |
| 735 | |
| 736 | if (dp->link->sink_request & DP_TEST_LINK_VIDEO_PATTERN) { |
| 737 | dp_display_handle_disconnect(dp); |
| 738 | |
| 739 | dp->panel->video_test = true; |
| 740 | dp_display_send_hpd_notification(dp, true); |
| 741 | dp->link->send_test_response(dp->link); |
| 742 | |
| 743 | return; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 744 | } |
| 745 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 746 | if (dp->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN) { |
| 747 | dp->ctrl->process_phy_test_request(dp->ctrl); |
| 748 | return; |
| 749 | } |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 750 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 751 | if (dp->link->sink_request & DP_LINK_STATUS_UPDATED) { |
| 752 | dp_display_handle_maintenance_req(dp); |
| 753 | return; |
| 754 | } |
| 755 | |
| 756 | if (dp->link->sink_request & DP_TEST_LINK_TRAINING) { |
| 757 | dp->link->send_test_response(dp->link); |
| 758 | dp_display_handle_maintenance_req(dp); |
| 759 | return; |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 760 | } |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 761 | } |
| 762 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 763 | static int dp_display_usbpd_attention_cb(struct device *dev) |
| 764 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 765 | struct dp_display_private *dp; |
| 766 | |
| 767 | if (!dev) { |
| 768 | pr_err("invalid dev\n"); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 769 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | dp = dev_get_drvdata(dev); |
| 773 | if (!dp) { |
| 774 | pr_err("no driver data found\n"); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 775 | return -ENODEV; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 776 | } |
| 777 | |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 778 | if (dp->usbpd->hpd_irq && dp->usbpd->hpd_high && |
| 779 | dp->power_on) { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 780 | dp->link->process_request(dp->link); |
| 781 | queue_work(dp->wq, &dp->attention_work); |
| 782 | } else if (dp->usbpd->hpd_high) { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 783 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 784 | } else { |
| 785 | /* cancel any pending request */ |
| 786 | dp->ctrl->abort(dp->ctrl); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 787 | dp->aux->abort(dp->aux); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 788 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 789 | /* wait for idle state */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 790 | cancel_delayed_work(&dp->connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 791 | flush_workqueue(dp->wq); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 792 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 793 | dp_display_handle_disconnect(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 794 | } |
| 795 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 796 | return 0; |
| 797 | } |
| 798 | |
| 799 | static void dp_display_connect_work(struct work_struct *work) |
| 800 | { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 801 | struct delayed_work *dw = to_delayed_work(work); |
| 802 | struct dp_display_private *dp = container_of(dw, |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 803 | struct dp_display_private, connect_work); |
| 804 | |
| 805 | if (dp->dp_display.is_connected) { |
| 806 | pr_debug("HPD already on\n"); |
| 807 | return; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 808 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 809 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 810 | dp_display_process_hpd_high(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 811 | } |
| 812 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 813 | static void dp_display_deinit_sub_modules(struct dp_display_private *dp) |
| 814 | { |
| 815 | dp_audio_put(dp->audio); |
| 816 | dp_ctrl_put(dp->ctrl); |
| 817 | dp_link_put(dp->link); |
| 818 | dp_panel_put(dp->panel); |
| 819 | dp_aux_put(dp->aux); |
| 820 | dp_power_put(dp->power); |
| 821 | dp_catalog_put(dp->catalog); |
| 822 | dp_parser_put(dp->parser); |
| 823 | dp_usbpd_put(dp->usbpd); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 824 | mutex_destroy(&dp->session_lock); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 825 | dp_debug_put(dp->debug); |
| 826 | } |
| 827 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 828 | static int dp_init_sub_modules(struct dp_display_private *dp) |
| 829 | { |
| 830 | int rc = 0; |
| 831 | struct device *dev = &dp->pdev->dev; |
| 832 | struct dp_usbpd_cb *cb = &dp->usbpd_cb; |
| 833 | struct dp_ctrl_in ctrl_in = { |
| 834 | .dev = dev, |
| 835 | }; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 836 | struct dp_panel_in panel_in = { |
| 837 | .dev = dev, |
| 838 | }; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 839 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 840 | mutex_init(&dp->session_lock); |
| 841 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 842 | dp->parser = dp_parser_get(dp->pdev); |
| 843 | if (IS_ERR(dp->parser)) { |
| 844 | rc = PTR_ERR(dp->parser); |
| 845 | pr_err("failed to initialize parser, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 846 | dp->parser = NULL; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 847 | goto error; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 848 | } |
| 849 | |
Ajay Singh Parmar | d948c05 | 2017-10-27 20:58:58 -0700 | [diff] [blame] | 850 | rc = dp->parser->parse(dp->parser); |
| 851 | if (rc) { |
| 852 | pr_err("device tree parsing failed\n"); |
| 853 | goto error_catalog; |
| 854 | } |
| 855 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 856 | dp->catalog = dp_catalog_get(dev, &dp->parser->io); |
| 857 | if (IS_ERR(dp->catalog)) { |
| 858 | rc = PTR_ERR(dp->catalog); |
| 859 | pr_err("failed to initialize catalog, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 860 | dp->catalog = NULL; |
| 861 | goto error_catalog; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 862 | } |
| 863 | |
| 864 | dp->power = dp_power_get(dp->parser); |
| 865 | if (IS_ERR(dp->power)) { |
| 866 | rc = PTR_ERR(dp->power); |
| 867 | pr_err("failed to initialize power, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 868 | dp->power = NULL; |
| 869 | goto error_power; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 870 | } |
| 871 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 872 | rc = dp->power->power_client_init(dp->power, &dp->priv->phandle); |
| 873 | if (rc) { |
| 874 | pr_err("Power client create failed\n"); |
| 875 | goto error_aux; |
| 876 | } |
| 877 | |
Padmanabhan Komanduru | 2e9914b | 2017-08-04 20:51:31 +0530 | [diff] [blame] | 878 | dp->aux = dp_aux_get(dev, &dp->catalog->aux, dp->parser->aux_cfg); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 879 | if (IS_ERR(dp->aux)) { |
| 880 | rc = PTR_ERR(dp->aux); |
| 881 | pr_err("failed to initialize aux, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 882 | dp->aux = NULL; |
| 883 | goto error_aux; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 884 | } |
| 885 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 886 | rc = dp->aux->drm_aux_register(dp->aux); |
| 887 | if (rc) { |
| 888 | pr_err("DRM DP AUX register failed\n"); |
| 889 | goto error_link; |
| 890 | } |
| 891 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 892 | dp->link = dp_link_get(dev, dp->aux); |
| 893 | if (IS_ERR(dp->link)) { |
| 894 | rc = PTR_ERR(dp->link); |
| 895 | pr_err("failed to initialize link, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 896 | dp->link = NULL; |
| 897 | goto error_link; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 898 | } |
| 899 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 900 | panel_in.aux = dp->aux; |
| 901 | panel_in.catalog = &dp->catalog->panel; |
| 902 | panel_in.link = dp->link; |
| 903 | |
| 904 | dp->panel = dp_panel_get(&panel_in); |
| 905 | if (IS_ERR(dp->panel)) { |
| 906 | rc = PTR_ERR(dp->panel); |
| 907 | pr_err("failed to initialize panel, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 908 | dp->panel = NULL; |
| 909 | goto error_panel; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 910 | } |
| 911 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 912 | ctrl_in.link = dp->link; |
| 913 | ctrl_in.panel = dp->panel; |
| 914 | ctrl_in.aux = dp->aux; |
| 915 | ctrl_in.power = dp->power; |
| 916 | ctrl_in.catalog = &dp->catalog->ctrl; |
| 917 | ctrl_in.parser = dp->parser; |
| 918 | |
| 919 | dp->ctrl = dp_ctrl_get(&ctrl_in); |
| 920 | if (IS_ERR(dp->ctrl)) { |
| 921 | rc = PTR_ERR(dp->ctrl); |
| 922 | pr_err("failed to initialize ctrl, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 923 | dp->ctrl = NULL; |
| 924 | goto error_ctrl; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 925 | } |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 926 | |
| 927 | dp->audio = dp_audio_get(dp->pdev, dp->panel, &dp->catalog->audio); |
| 928 | if (IS_ERR(dp->audio)) { |
| 929 | rc = PTR_ERR(dp->audio); |
| 930 | pr_err("failed to initialize audio, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 931 | dp->audio = NULL; |
| 932 | goto error_audio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 933 | } |
| 934 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 935 | cb->configure = dp_display_usbpd_configure_cb; |
| 936 | cb->disconnect = dp_display_usbpd_disconnect_cb; |
| 937 | cb->attention = dp_display_usbpd_attention_cb; |
| 938 | |
| 939 | dp->usbpd = dp_usbpd_get(dev, cb); |
| 940 | if (IS_ERR(dp->usbpd)) { |
| 941 | rc = PTR_ERR(dp->usbpd); |
| 942 | pr_err("failed to initialize usbpd, rc = %d\n", rc); |
| 943 | dp->usbpd = NULL; |
| 944 | goto error_usbpd; |
| 945 | } |
| 946 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 947 | dp->debug = dp_debug_get(dev, dp->panel, dp->usbpd, |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 948 | dp->link, dp->aux, &dp->dp_display.connector); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 949 | if (IS_ERR(dp->debug)) { |
| 950 | rc = PTR_ERR(dp->debug); |
| 951 | pr_err("failed to initialize debug, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 952 | dp->debug = NULL; |
| 953 | goto error_debug; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 954 | } |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 955 | |
| 956 | return rc; |
| 957 | error_debug: |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 958 | dp_usbpd_put(dp->usbpd); |
| 959 | error_usbpd: |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 960 | dp_audio_put(dp->audio); |
| 961 | error_audio: |
| 962 | dp_ctrl_put(dp->ctrl); |
| 963 | error_ctrl: |
| 964 | dp_panel_put(dp->panel); |
| 965 | error_panel: |
| 966 | dp_link_put(dp->link); |
| 967 | error_link: |
| 968 | dp_aux_put(dp->aux); |
| 969 | error_aux: |
| 970 | dp_power_put(dp->power); |
| 971 | error_power: |
| 972 | dp_catalog_put(dp->catalog); |
| 973 | error_catalog: |
| 974 | dp_parser_put(dp->parser); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 975 | error: |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 976 | mutex_destroy(&dp->session_lock); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 977 | return rc; |
| 978 | } |
| 979 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 980 | static void dp_display_post_init(struct dp_display *dp_display) |
| 981 | { |
| 982 | int rc = 0; |
| 983 | struct dp_display_private *dp; |
| 984 | |
| 985 | if (!dp_display) { |
| 986 | pr_err("invalid input\n"); |
| 987 | rc = -EINVAL; |
| 988 | goto end; |
| 989 | } |
| 990 | |
| 991 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 992 | if (IS_ERR_OR_NULL(dp)) { |
| 993 | pr_err("invalid params\n"); |
| 994 | rc = -EINVAL; |
| 995 | goto end; |
| 996 | } |
| 997 | |
| 998 | rc = dp_init_sub_modules(dp); |
| 999 | if (rc) |
| 1000 | goto end; |
| 1001 | |
| 1002 | dp_display_initialize_hdcp(dp); |
| 1003 | |
| 1004 | dp_display->post_init = NULL; |
| 1005 | end: |
| 1006 | pr_debug("%s\n", rc ? "failed" : "success"); |
| 1007 | } |
| 1008 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1009 | static int dp_display_set_mode(struct dp_display *dp_display, |
| 1010 | struct dp_display_mode *mode) |
| 1011 | { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1012 | const u32 num_components = 3, default_bpp = 24; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1013 | struct dp_display_private *dp; |
| 1014 | |
| 1015 | if (!dp_display) { |
| 1016 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1017 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1018 | } |
| 1019 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1020 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1021 | mutex_lock(&dp->session_lock); |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1022 | mode->timing.bpp = |
| 1023 | dp_display->connector->display_info.bpc * num_components; |
| 1024 | if (!mode->timing.bpp) |
| 1025 | mode->timing.bpp = default_bpp; |
| 1026 | |
| 1027 | mode->timing.bpp = dp->panel->get_mode_bpp(dp->panel, |
| 1028 | mode->timing.bpp, mode->timing.pixel_clk_khz); |
| 1029 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1030 | dp->panel->pinfo = mode->timing; |
Ajay Singh Parmar | fae1167 | 2017-09-01 19:49:30 -0700 | [diff] [blame] | 1031 | dp->panel->init(dp->panel); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1032 | mutex_unlock(&dp->session_lock); |
| 1033 | |
| 1034 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1035 | } |
| 1036 | |
| 1037 | static int dp_display_prepare(struct dp_display *dp) |
| 1038 | { |
| 1039 | return 0; |
| 1040 | } |
| 1041 | |
| 1042 | static int dp_display_enable(struct dp_display *dp_display) |
| 1043 | { |
| 1044 | int rc = 0; |
| 1045 | struct dp_display_private *dp; |
| 1046 | |
| 1047 | if (!dp_display) { |
| 1048 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1049 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1050 | } |
| 1051 | |
| 1052 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1053 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1054 | mutex_lock(&dp->session_lock); |
| 1055 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1056 | if (dp->power_on) { |
| 1057 | pr_debug("Link already setup, return\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1058 | goto end; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1059 | } |
| 1060 | |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 1061 | dp->aux->init(dp->aux, dp->parser->aux_cfg); |
| 1062 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1063 | rc = dp->ctrl->on(dp->ctrl); |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 1064 | |
| 1065 | if (dp->debug->tpg_state) |
| 1066 | dp->panel->tpg_config(dp->panel, true); |
| 1067 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1068 | if (!rc) |
| 1069 | dp->power_on = true; |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1070 | end: |
| 1071 | mutex_unlock(&dp->session_lock); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1072 | return rc; |
| 1073 | } |
| 1074 | |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1075 | static int dp_display_post_enable(struct dp_display *dp_display) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1076 | { |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1077 | struct dp_display_private *dp; |
| 1078 | |
| 1079 | if (!dp_display) { |
| 1080 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1081 | return -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1082 | } |
| 1083 | |
| 1084 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1085 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1086 | mutex_lock(&dp->session_lock); |
| 1087 | |
| 1088 | if (!dp->power_on) { |
| 1089 | pr_debug("Link not setup, return\n"); |
| 1090 | goto end; |
| 1091 | } |
| 1092 | |
Padmanabhan Komanduru | 62a01d0 | 2017-11-03 19:44:13 +0530 | [diff] [blame] | 1093 | dp->panel->spd_config(dp->panel); |
| 1094 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 1095 | if (dp->audio_supported) { |
Padmanabhan Komanduru | 0cc4e56 | 2017-08-28 17:03:06 +0530 | [diff] [blame] | 1096 | dp->audio->bw_code = dp->link->link_params.bw_code; |
| 1097 | dp->audio->lane_count = dp->link->link_params.lane_count; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 1098 | dp->audio_status = dp->audio->on(dp->audio); |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 1099 | } |
| 1100 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1101 | dp_display_update_hdcp_info(dp); |
| 1102 | |
| 1103 | if (dp_display_is_hdcp_enabled(dp)) { |
| 1104 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 1105 | |
| 1106 | dp->hdcp_status = HDCP_STATE_AUTHENTICATING; |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1107 | queue_delayed_work(dp->wq, &dp->hdcp_cb_work, HZ / 2); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1108 | } |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1109 | |
| 1110 | dp->panel->setup_hdr(dp->panel, NULL); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1111 | end: |
Ajay Singh Parmar | 2307c20 | 2017-11-12 20:14:30 -0800 | [diff] [blame] | 1112 | /* clear framework event notifier */ |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1113 | dp_display->post_open = NULL; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1114 | dp->aux->state |= DP_STATE_CTRL_POWERED_ON; |
Ajay Singh Parmar | 2307c20 | 2017-11-12 20:14:30 -0800 | [diff] [blame] | 1115 | |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 1116 | complete_all(&dp->notification_comp); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1117 | mutex_unlock(&dp->session_lock); |
| 1118 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1119 | } |
| 1120 | |
| 1121 | static int dp_display_pre_disable(struct dp_display *dp_display) |
| 1122 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1123 | struct dp_display_private *dp; |
| 1124 | |
| 1125 | if (!dp_display) { |
| 1126 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1127 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1128 | } |
| 1129 | |
| 1130 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1131 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1132 | mutex_lock(&dp->session_lock); |
| 1133 | |
| 1134 | if (!dp->power_on) { |
| 1135 | pr_debug("Link already powered off, return\n"); |
| 1136 | goto end; |
| 1137 | } |
| 1138 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1139 | if (dp_display_is_hdcp_enabled(dp)) { |
| 1140 | dp->hdcp_status = HDCP_STATE_INACTIVE; |
| 1141 | |
| 1142 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 1143 | if (dp->hdcp.ops->off) |
| 1144 | dp->hdcp.ops->off(dp->hdcp.data); |
| 1145 | } |
| 1146 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 1147 | if (dp->usbpd->hpd_high && dp->usbpd->alt_mode_cfg_done) { |
| 1148 | if (dp->audio_supported) |
| 1149 | dp->audio->off(dp->audio); |
| 1150 | |
| 1151 | dp->link->psm_config(dp->link, &dp->panel->link_info, true); |
| 1152 | dp->debug->psm_enabled = true; |
| 1153 | } |
| 1154 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1155 | dp->ctrl->push_idle(dp->ctrl); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1156 | end: |
| 1157 | mutex_unlock(&dp->session_lock); |
| 1158 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1159 | } |
| 1160 | |
| 1161 | static int dp_display_disable(struct dp_display *dp_display) |
| 1162 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1163 | struct dp_display_private *dp; |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1164 | struct drm_connector *connector; |
| 1165 | struct sde_connector_state *c_state; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1166 | |
| 1167 | if (!dp_display) { |
| 1168 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1169 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1170 | } |
| 1171 | |
| 1172 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1173 | connector = dp->dp_display.connector; |
| 1174 | c_state = to_sde_connector_state(connector->state); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1175 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1176 | mutex_lock(&dp->session_lock); |
| 1177 | |
| 1178 | if (!dp->power_on || !dp->core_initialized) { |
| 1179 | pr_debug("Link already powered off, return\n"); |
| 1180 | goto end; |
| 1181 | } |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 1182 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1183 | dp->ctrl->off(dp->ctrl); |
Ajay Singh Parmar | fae1167 | 2017-09-01 19:49:30 -0700 | [diff] [blame] | 1184 | dp->panel->deinit(dp->panel); |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 1185 | dp->aux->deinit(dp->aux); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1186 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1187 | connector->hdr_eotf = 0; |
| 1188 | connector->hdr_metadata_type_one = 0; |
| 1189 | connector->hdr_max_luminance = 0; |
| 1190 | connector->hdr_avg_luminance = 0; |
| 1191 | connector->hdr_min_luminance = 0; |
| 1192 | |
| 1193 | memset(&c_state->hdr_meta, 0, sizeof(c_state->hdr_meta)); |
| 1194 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 1195 | /* |
| 1196 | * In case of framework reboot, the DP off sequence is executed without |
| 1197 | * any notification from driver. Initialize post_open callback to notify |
| 1198 | * DP connection once framework restarts. |
| 1199 | */ |
| 1200 | if (dp->usbpd->hpd_high && dp->usbpd->alt_mode_cfg_done) { |
| 1201 | dp_display->post_open = dp_display_post_open; |
| 1202 | dp->dp_display.is_connected = false; |
| 1203 | } |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1204 | dp->power_on = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1205 | dp->aux->state = DP_STATE_CTRL_POWERED_OFF; |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1206 | end: |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1207 | complete_all(&dp->notification_comp); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1208 | mutex_unlock(&dp->session_lock); |
| 1209 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1210 | } |
| 1211 | |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 1212 | static int dp_request_irq(struct dp_display *dp_display) |
| 1213 | { |
| 1214 | int rc = 0; |
| 1215 | struct dp_display_private *dp; |
| 1216 | |
| 1217 | if (!dp_display) { |
| 1218 | pr_err("invalid input\n"); |
| 1219 | return -EINVAL; |
| 1220 | } |
| 1221 | |
| 1222 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1223 | |
| 1224 | dp->irq = irq_of_parse_and_map(dp->pdev->dev.of_node, 0); |
| 1225 | if (dp->irq < 0) { |
| 1226 | rc = dp->irq; |
| 1227 | pr_err("failed to get irq: %d\n", rc); |
| 1228 | return rc; |
| 1229 | } |
| 1230 | |
| 1231 | rc = devm_request_irq(&dp->pdev->dev, dp->irq, dp_display_irq, |
| 1232 | IRQF_TRIGGER_HIGH, "dp_display_isr", dp); |
| 1233 | if (rc < 0) { |
| 1234 | pr_err("failed to request IRQ%u: %d\n", |
| 1235 | dp->irq, rc); |
| 1236 | return rc; |
| 1237 | } |
| 1238 | disable_irq(dp->irq); |
| 1239 | |
| 1240 | return 0; |
| 1241 | } |
| 1242 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1243 | static struct dp_debug *dp_get_debug(struct dp_display *dp_display) |
| 1244 | { |
| 1245 | struct dp_display_private *dp; |
| 1246 | |
| 1247 | if (!dp_display) { |
| 1248 | pr_err("invalid input\n"); |
| 1249 | return ERR_PTR(-EINVAL); |
| 1250 | } |
| 1251 | |
| 1252 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1253 | |
| 1254 | return dp->debug; |
| 1255 | } |
| 1256 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1257 | static int dp_display_unprepare(struct dp_display *dp) |
| 1258 | { |
| 1259 | return 0; |
| 1260 | } |
| 1261 | |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1262 | static int dp_display_validate_mode(struct dp_display *dp, u32 mode_pclk_khz) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1263 | { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1264 | const u32 num_components = 3, default_bpp = 24; |
| 1265 | struct dp_display_private *dp_display; |
| 1266 | struct drm_dp_link *link_info; |
| 1267 | u32 mode_rate_khz = 0, supported_rate_khz = 0, mode_bpp = 0; |
| 1268 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1269 | if (!dp || !mode_pclk_khz || !dp->connector) { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1270 | pr_err("invalid params\n"); |
| 1271 | return -EINVAL; |
| 1272 | } |
| 1273 | |
| 1274 | dp_display = container_of(dp, struct dp_display_private, dp_display); |
| 1275 | link_info = &dp_display->panel->link_info; |
| 1276 | |
| 1277 | mode_bpp = dp->connector->display_info.bpc * num_components; |
| 1278 | if (!mode_bpp) |
| 1279 | mode_bpp = default_bpp; |
| 1280 | |
| 1281 | mode_bpp = dp_display->panel->get_mode_bpp(dp_display->panel, |
| 1282 | mode_bpp, mode_pclk_khz); |
| 1283 | |
| 1284 | mode_rate_khz = mode_pclk_khz * mode_bpp; |
| 1285 | supported_rate_khz = link_info->num_lanes * link_info->rate * 8; |
| 1286 | |
| 1287 | if (mode_rate_khz > supported_rate_khz) |
| 1288 | return MODE_BAD; |
| 1289 | |
| 1290 | return MODE_OK; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1291 | } |
| 1292 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1293 | static int dp_display_get_modes(struct dp_display *dp, |
| 1294 | struct dp_display_mode *dp_mode) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1295 | { |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1296 | struct dp_display_private *dp_display; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1297 | int ret = 0; |
| 1298 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1299 | if (!dp || !dp->connector) { |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1300 | pr_err("invalid params\n"); |
| 1301 | return 0; |
| 1302 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1303 | |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1304 | dp_display = container_of(dp, struct dp_display_private, dp_display); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1305 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1306 | ret = dp_display->panel->get_modes(dp_display->panel, |
| 1307 | dp->connector, dp_mode); |
| 1308 | if (dp_mode->timing.pixel_clk_khz) |
| 1309 | dp->max_pclk_khz = dp_mode->timing.pixel_clk_khz; |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1310 | return ret; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1311 | } |
| 1312 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1313 | static int dp_display_config_hdr(struct dp_display *dp_display, |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1314 | struct drm_msm_ext_hdr_metadata *hdr) |
| 1315 | { |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1316 | int rc = 0; |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1317 | struct dp_display_private *dp; |
| 1318 | |
| 1319 | if (!dp_display) { |
| 1320 | pr_err("invalid input\n"); |
| 1321 | return -EINVAL; |
| 1322 | } |
| 1323 | |
| 1324 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1325 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1326 | rc = dp->panel->setup_hdr(dp->panel, hdr); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1327 | |
| 1328 | return rc; |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1329 | } |
| 1330 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1331 | static int dp_display_create_workqueue(struct dp_display_private *dp) |
| 1332 | { |
| 1333 | dp->wq = create_singlethread_workqueue("drm_dp"); |
| 1334 | if (IS_ERR_OR_NULL(dp->wq)) { |
| 1335 | pr_err("Error creating wq\n"); |
| 1336 | return -EPERM; |
| 1337 | } |
| 1338 | |
| 1339 | INIT_DELAYED_WORK(&dp->hdcp_cb_work, dp_display_hdcp_cb_work); |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 1340 | INIT_DELAYED_WORK(&dp->connect_work, dp_display_connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1341 | INIT_WORK(&dp->attention_work, dp_display_attention_work); |
| 1342 | |
| 1343 | return 0; |
| 1344 | } |
| 1345 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1346 | static int dp_display_probe(struct platform_device *pdev) |
| 1347 | { |
| 1348 | int rc = 0; |
| 1349 | struct dp_display_private *dp; |
| 1350 | |
| 1351 | if (!pdev || !pdev->dev.of_node) { |
| 1352 | pr_err("pdev not found\n"); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1353 | rc = -ENODEV; |
| 1354 | goto bail; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1355 | } |
| 1356 | |
| 1357 | dp = devm_kzalloc(&pdev->dev, sizeof(*dp), GFP_KERNEL); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1358 | if (!dp) { |
| 1359 | rc = -ENOMEM; |
| 1360 | goto bail; |
| 1361 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1362 | |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1363 | init_completion(&dp->notification_comp); |
| 1364 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1365 | dp->pdev = pdev; |
| 1366 | dp->name = "drm_dp"; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 1367 | dp->audio_status = -ENODEV; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1368 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1369 | rc = dp_display_create_workqueue(dp); |
| 1370 | if (rc) { |
| 1371 | pr_err("Failed to create workqueue\n"); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1372 | goto error; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1373 | } |
| 1374 | |
| 1375 | platform_set_drvdata(pdev, dp); |
| 1376 | |
| 1377 | g_dp_display = &dp->dp_display; |
| 1378 | |
| 1379 | g_dp_display->enable = dp_display_enable; |
| 1380 | g_dp_display->post_enable = dp_display_post_enable; |
| 1381 | g_dp_display->pre_disable = dp_display_pre_disable; |
| 1382 | g_dp_display->disable = dp_display_disable; |
| 1383 | g_dp_display->set_mode = dp_display_set_mode; |
| 1384 | g_dp_display->validate_mode = dp_display_validate_mode; |
| 1385 | g_dp_display->get_modes = dp_display_get_modes; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1386 | g_dp_display->prepare = dp_display_prepare; |
| 1387 | g_dp_display->unprepare = dp_display_unprepare; |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 1388 | g_dp_display->request_irq = dp_request_irq; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1389 | g_dp_display->get_debug = dp_get_debug; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1390 | g_dp_display->post_open = dp_display_post_open; |
| 1391 | g_dp_display->post_init = dp_display_post_init; |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1392 | g_dp_display->config_hdr = dp_display_config_hdr; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1393 | |
| 1394 | rc = component_add(&pdev->dev, &dp_display_comp_ops); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1395 | if (rc) { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1396 | pr_err("component add failed, rc=%d\n", rc); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1397 | goto error; |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1398 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1399 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1400 | return 0; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1401 | error: |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1402 | devm_kfree(&pdev->dev, dp); |
| 1403 | bail: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1404 | return rc; |
| 1405 | } |
| 1406 | |
Padmanabhan Komanduru | 6375861 | 2017-05-23 01:47:18 -0700 | [diff] [blame] | 1407 | int dp_display_get_displays(void **displays, int count) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1408 | { |
Padmanabhan Komanduru | 6375861 | 2017-05-23 01:47:18 -0700 | [diff] [blame] | 1409 | if (!displays) { |
| 1410 | pr_err("invalid data\n"); |
| 1411 | return -EINVAL; |
| 1412 | } |
| 1413 | |
| 1414 | if (count != 1) { |
| 1415 | pr_err("invalid number of displays\n"); |
| 1416 | return -EINVAL; |
| 1417 | } |
| 1418 | |
| 1419 | displays[0] = g_dp_display; |
| 1420 | return count; |
| 1421 | } |
| 1422 | |
| 1423 | int dp_display_get_num_of_displays(void) |
| 1424 | { |
| 1425 | return 1; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1426 | } |
| 1427 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1428 | static int dp_display_remove(struct platform_device *pdev) |
| 1429 | { |
| 1430 | struct dp_display_private *dp; |
| 1431 | |
| 1432 | if (!pdev) |
| 1433 | return -EINVAL; |
| 1434 | |
| 1435 | dp = platform_get_drvdata(pdev); |
| 1436 | |
| 1437 | dp_display_deinit_sub_modules(dp); |
| 1438 | |
| 1439 | platform_set_drvdata(pdev, NULL); |
| 1440 | devm_kfree(&pdev->dev, dp); |
| 1441 | |
| 1442 | return 0; |
| 1443 | } |
| 1444 | |
| 1445 | static struct platform_driver dp_display_driver = { |
| 1446 | .probe = dp_display_probe, |
| 1447 | .remove = dp_display_remove, |
| 1448 | .driver = { |
| 1449 | .name = "msm-dp-display", |
| 1450 | .of_match_table = dp_dt_match, |
| 1451 | }, |
| 1452 | }; |
| 1453 | |
| 1454 | static int __init dp_display_init(void) |
| 1455 | { |
| 1456 | int ret; |
| 1457 | |
| 1458 | ret = platform_driver_register(&dp_display_driver); |
| 1459 | if (ret) { |
| 1460 | pr_err("driver register failed"); |
| 1461 | return ret; |
| 1462 | } |
| 1463 | |
| 1464 | return ret; |
| 1465 | } |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1466 | late_initcall(dp_display_init); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1467 | |
| 1468 | static void __exit dp_display_cleanup(void) |
| 1469 | { |
| 1470 | platform_driver_unregister(&dp_display_driver); |
| 1471 | } |
| 1472 | module_exit(dp_display_cleanup); |
| 1473 | |