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; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 277 | struct dp_parser *parser; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 278 | int rc = 0; |
| 279 | |
| 280 | if (!dp) { |
| 281 | pr_err("invalid input\n"); |
| 282 | return -EINVAL; |
| 283 | } |
| 284 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 285 | parser = dp->parser; |
| 286 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 287 | mutex_init(&dp->hdcp_mutex); |
| 288 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 289 | hdcp_init_data.client_id = HDCP_CLIENT_DP; |
| 290 | hdcp_init_data.drm_aux = dp->aux->drm_aux; |
| 291 | hdcp_init_data.cb_data = (void *)dp; |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 292 | hdcp_init_data.workq = dp->wq; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 293 | hdcp_init_data.mutex = &dp->hdcp_mutex; |
| 294 | hdcp_init_data.sec_access = true; |
| 295 | hdcp_init_data.notify_status = dp_display_notify_hdcp_status_cb; |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 296 | hdcp_init_data.dp_ahb = &parser->get_io(parser, "dp_ahb")->io; |
| 297 | hdcp_init_data.dp_aux = &parser->get_io(parser, "dp_aux")->io; |
| 298 | hdcp_init_data.dp_link = &parser->get_io(parser, "dp_link")->io; |
| 299 | hdcp_init_data.dp_p0 = &parser->get_io(parser, "dp_p0")->io; |
| 300 | hdcp_init_data.qfprom_io = &parser->get_io(parser, |
| 301 | "qfprom_physical")->io; |
| 302 | hdcp_init_data.hdcp_io = &parser->get_io(parser, |
| 303 | "hdcp_physical")->io; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 304 | hdcp_init_data.revision = &dp->panel->link_info.revision; |
| 305 | |
Tatenda Chipeperekwa | b8cbd13 | 2017-07-07 17:43:29 -0700 | [diff] [blame] | 306 | dp->hdcp.hdcp1 = sde_hdcp_1x_init(&hdcp_init_data); |
| 307 | if (IS_ERR_OR_NULL(dp->hdcp.hdcp1)) { |
| 308 | pr_err("Error initializing HDCP 1.x\n"); |
| 309 | rc = -EINVAL; |
| 310 | goto error; |
| 311 | } |
| 312 | |
| 313 | pr_debug("HDCP 1.3 initialized\n"); |
| 314 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 315 | dp->hdcp.hdcp2 = sde_dp_hdcp2p2_init(&hdcp_init_data); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 316 | if (IS_ERR_OR_NULL(dp->hdcp.hdcp2)) { |
| 317 | pr_err("Error initializing HDCP 2.x\n"); |
| 318 | rc = -EINVAL; |
| 319 | goto error; |
| 320 | } |
| 321 | |
| 322 | pr_debug("HDCP 2.2 initialized\n"); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 323 | |
| 324 | dp->hdcp.feature_enabled = true; |
| 325 | |
| 326 | return 0; |
| 327 | error: |
| 328 | dp_display_deinitialize_hdcp(dp); |
| 329 | return rc; |
| 330 | } |
| 331 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 332 | static int dp_display_bind(struct device *dev, struct device *master, |
| 333 | void *data) |
| 334 | { |
| 335 | int rc = 0; |
| 336 | struct dp_display_private *dp; |
| 337 | struct drm_device *drm; |
| 338 | struct platform_device *pdev = to_platform_device(dev); |
| 339 | |
| 340 | if (!dev || !pdev || !master) { |
| 341 | pr_err("invalid param(s), dev %pK, pdev %pK, master %pK\n", |
| 342 | dev, pdev, master); |
| 343 | rc = -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 344 | goto end; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | drm = dev_get_drvdata(master); |
| 348 | dp = platform_get_drvdata(pdev); |
| 349 | if (!drm || !dp) { |
| 350 | pr_err("invalid param(s), drm %pK, dp %pK\n", |
| 351 | drm, dp); |
| 352 | rc = -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 353 | goto end; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | dp->dp_display.drm_dev = drm; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 357 | dp->priv = drm->dev_private; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 358 | end: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 359 | return rc; |
| 360 | } |
| 361 | |
| 362 | static void dp_display_unbind(struct device *dev, struct device *master, |
| 363 | void *data) |
| 364 | { |
| 365 | struct dp_display_private *dp; |
| 366 | struct platform_device *pdev = to_platform_device(dev); |
| 367 | |
| 368 | if (!dev || !pdev) { |
| 369 | pr_err("invalid param(s)\n"); |
| 370 | return; |
| 371 | } |
| 372 | |
| 373 | dp = platform_get_drvdata(pdev); |
| 374 | if (!dp) { |
| 375 | pr_err("Invalid params\n"); |
| 376 | return; |
| 377 | } |
| 378 | |
Padmanabhan Komanduru | 4152f39 | 2017-05-11 17:53:55 -0700 | [diff] [blame] | 379 | (void)dp->power->power_client_deinit(dp->power); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 380 | (void)dp->aux->drm_aux_deregister(dp->aux); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 381 | dp_display_deinitialize_hdcp(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | static const struct component_ops dp_display_comp_ops = { |
| 385 | .bind = dp_display_bind, |
| 386 | .unbind = dp_display_unbind, |
| 387 | }; |
| 388 | |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 389 | static bool dp_display_is_ds_bridge(struct dp_panel *panel) |
| 390 | { |
| 391 | return (panel->dpcd[DP_DOWNSTREAMPORT_PRESENT] & |
| 392 | DP_DWN_STRM_PORT_PRESENT); |
| 393 | } |
| 394 | |
| 395 | static bool dp_display_is_sink_count_zero(struct dp_display_private *dp) |
| 396 | { |
| 397 | return dp_display_is_ds_bridge(dp->panel) && |
| 398 | (dp->link->sink_count.count == 0); |
| 399 | } |
| 400 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 401 | static void dp_display_send_hpd_event(struct dp_display_private *dp) |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 402 | { |
| 403 | struct drm_device *dev = NULL; |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 404 | struct drm_connector *connector; |
| 405 | char name[HPD_STRING_SIZE], status[HPD_STRING_SIZE], |
| 406 | bpp[HPD_STRING_SIZE], pattern[HPD_STRING_SIZE]; |
| 407 | char *envp[5]; |
| 408 | |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 409 | connector = dp->dp_display.connector; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 410 | |
| 411 | if (!connector) { |
| 412 | pr_err("connector not set\n"); |
| 413 | return; |
| 414 | } |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 415 | |
| 416 | connector->status = connector->funcs->detect(connector, false); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 417 | |
| 418 | dev = dp->dp_display.connector->dev; |
| 419 | |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 420 | snprintf(name, HPD_STRING_SIZE, "name=%s", connector->name); |
| 421 | snprintf(status, HPD_STRING_SIZE, "status=%s", |
| 422 | drm_get_connector_status_name(connector->status)); |
| 423 | snprintf(bpp, HPD_STRING_SIZE, "bpp=%d", |
| 424 | dp_link_bit_depth_to_bpp( |
| 425 | dp->link->test_video.test_bit_depth)); |
| 426 | snprintf(pattern, HPD_STRING_SIZE, "pattern=%d", |
| 427 | dp->link->test_video.test_video_pattern); |
| 428 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 429 | pr_debug("[%s]:[%s] [%s] [%s]\n", name, status, bpp, pattern); |
Padmanabhan Komanduru | 71aec2d | 2017-08-30 20:07:59 +0530 | [diff] [blame] | 430 | envp[0] = name; |
| 431 | envp[1] = status; |
| 432 | envp[2] = bpp; |
| 433 | envp[3] = pattern; |
| 434 | envp[4] = NULL; |
| 435 | kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, |
| 436 | envp); |
| 437 | } |
| 438 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 439 | static void dp_display_post_open(struct dp_display *dp_display) |
| 440 | { |
| 441 | struct drm_connector *connector; |
| 442 | struct dp_display_private *dp; |
| 443 | |
| 444 | if (!dp_display) { |
| 445 | pr_err("invalid input\n"); |
| 446 | return; |
| 447 | } |
| 448 | |
| 449 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 450 | if (IS_ERR_OR_NULL(dp)) { |
| 451 | pr_err("invalid params\n"); |
| 452 | return; |
| 453 | } |
| 454 | |
| 455 | connector = dp->dp_display.connector; |
| 456 | |
| 457 | if (!connector) { |
| 458 | pr_err("connector not set\n"); |
| 459 | return; |
| 460 | } |
| 461 | |
| 462 | /* if cable is already connected, send notification */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 463 | if (dp->usbpd->hpd_high) |
| 464 | queue_delayed_work(dp->wq, &dp->connect_work, HZ * 10); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 465 | else |
| 466 | dp_display->post_open = NULL; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 467 | } |
| 468 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 469 | static int dp_display_send_hpd_notification(struct dp_display_private *dp, |
| 470 | bool hpd) |
| 471 | { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 472 | u32 timeout_sec; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 473 | int ret = 0; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 474 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 475 | dp->dp_display.is_connected = hpd; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 476 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 477 | if (dp_display_framework_ready(dp)) |
| 478 | timeout_sec = 5; |
| 479 | else |
| 480 | timeout_sec = 10; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 481 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 482 | dp->aux->state |= DP_STATE_NOTIFICATION_SENT; |
| 483 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 484 | reinit_completion(&dp->notification_comp); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 485 | dp_display_send_hpd_event(dp); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 486 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 487 | if (!wait_for_completion_timeout(&dp->notification_comp, |
| 488 | HZ * timeout_sec)) { |
Tatenda Chipeperekwa | 8ce1d5f | 2017-08-07 18:44:21 -0700 | [diff] [blame] | 489 | pr_warn("%s timeout\n", hpd ? "connect" : "disconnect"); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 490 | ret = -EINVAL; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 491 | } |
| 492 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 493 | dp->aux->state &= ~DP_STATE_NOTIFICATION_SENT; |
| 494 | |
| 495 | return ret; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 496 | } |
| 497 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 498 | static int dp_display_process_hpd_high(struct dp_display_private *dp) |
| 499 | { |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 500 | int rc = 0; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 501 | struct edid *edid; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 502 | |
Tatenda Chipeperekwa | 344498e | 2017-09-06 12:34:36 -0700 | [diff] [blame] | 503 | dp->aux->init(dp->aux, dp->parser->aux_cfg); |
| 504 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 505 | if (dp->debug->psm_enabled) { |
| 506 | dp->link->psm_config(dp->link, &dp->panel->link_info, false); |
| 507 | dp->debug->psm_enabled = false; |
| 508 | } |
Padmanabhan Komanduru | b6f7c6f | 2017-09-05 18:50:30 +0530 | [diff] [blame] | 509 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 510 | if (!dp->dp_display.connector) |
| 511 | return 0; |
| 512 | |
Padmanabhan Komanduru | da8b3d0 | 2017-12-22 15:45:12 +0530 | [diff] [blame] | 513 | rc = dp->panel->read_sink_caps(dp->panel, |
| 514 | dp->dp_display.connector, dp->usbpd->multi_func); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 515 | if (rc) { |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 516 | /* |
| 517 | * ETIMEDOUT --> cable may have been removed |
| 518 | * ENOTCONN --> no downstream device connected |
| 519 | */ |
| 520 | if (rc == -ETIMEDOUT || rc == -ENOTCONN) |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 521 | goto end; |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 522 | else |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 523 | goto notify; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 524 | } |
| 525 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 526 | edid = dp->panel->edid_ctrl->edid; |
| 527 | |
| 528 | dp->audio_supported = drm_detect_monitor_audio(edid); |
| 529 | |
Ajay Singh Parmar | 6da24b0 | 2017-12-08 14:30:36 -0800 | [diff] [blame] | 530 | dp->link->process_request(dp->link); |
Padmanabhan Komanduru | 504e289 | 2017-09-19 20:38:31 +0530 | [diff] [blame] | 531 | dp->panel->handle_sink_request(dp->panel); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 532 | |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 533 | dp->dp_display.max_pclk_khz = dp->parser->max_pclk_khz; |
Padmanabhan Komanduru | b6f7c6f | 2017-09-05 18:50:30 +0530 | [diff] [blame] | 534 | notify: |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 535 | dp_display_send_hpd_notification(dp, true); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 536 | |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 537 | end: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 538 | return rc; |
| 539 | } |
| 540 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 541 | static void dp_display_host_init(struct dp_display_private *dp) |
| 542 | { |
| 543 | bool flip = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 544 | bool reset; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 545 | |
| 546 | if (dp->core_initialized) { |
| 547 | pr_debug("DP core already initialized\n"); |
| 548 | return; |
| 549 | } |
| 550 | |
| 551 | if (dp->usbpd->orientation == ORIENTATION_CC2) |
| 552 | flip = true; |
| 553 | |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 554 | reset = dp->debug->sim_mode ? false : !dp->usbpd->multi_func; |
| 555 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 556 | dp->power->init(dp->power, flip); |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 557 | dp->ctrl->init(dp->ctrl, flip, reset); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 558 | enable_irq(dp->irq); |
| 559 | dp->core_initialized = true; |
| 560 | } |
| 561 | |
| 562 | static void dp_display_host_deinit(struct dp_display_private *dp) |
| 563 | { |
| 564 | if (!dp->core_initialized) { |
| 565 | pr_debug("DP core already off\n"); |
| 566 | return; |
| 567 | } |
| 568 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 569 | dp->ctrl->deinit(dp->ctrl); |
| 570 | dp->power->deinit(dp->power); |
| 571 | disable_irq(dp->irq); |
| 572 | dp->core_initialized = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 573 | dp->aux->state = 0; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 574 | } |
| 575 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 576 | 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] | 577 | { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 578 | int rc = 0; |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 579 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 580 | if (!dp->dp_display.is_connected) { |
| 581 | pr_debug("HPD already off\n"); |
| 582 | return 0; |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 583 | } |
| 584 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 585 | if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->off) |
| 586 | dp->hdcp.ops->off(dp->hdcp.data); |
| 587 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 588 | if (dp->audio_supported) |
| 589 | dp->audio->off(dp->audio); |
| 590 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 591 | dp->audio_status = -ENODEV; |
| 592 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 593 | rc = dp_display_send_hpd_notification(dp, false); |
Tatenda Chipeperekwa | 344498e | 2017-09-06 12:34:36 -0700 | [diff] [blame] | 594 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 595 | dp->panel->video_test = false; |
| 596 | |
| 597 | return rc; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 598 | } |
| 599 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 600 | static int dp_display_usbpd_configure_cb(struct device *dev) |
| 601 | { |
| 602 | int rc = 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 603 | struct dp_display_private *dp; |
| 604 | |
| 605 | if (!dev) { |
| 606 | pr_err("invalid dev\n"); |
| 607 | rc = -EINVAL; |
| 608 | goto end; |
| 609 | } |
| 610 | |
| 611 | dp = dev_get_drvdata(dev); |
| 612 | if (!dp) { |
| 613 | pr_err("no driver data found\n"); |
| 614 | rc = -ENODEV; |
| 615 | goto end; |
| 616 | } |
| 617 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 618 | dp_display_host_init(dp); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 619 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 620 | /* check for hpd high and framework ready */ |
| 621 | if (dp->usbpd->hpd_high && dp_display_framework_ready(dp)) |
| 622 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 623 | end: |
| 624 | return rc; |
| 625 | } |
| 626 | |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 627 | static void dp_display_clean(struct dp_display_private *dp) |
| 628 | { |
| 629 | if (dp_display_is_hdcp_enabled(dp)) { |
| 630 | dp->hdcp_status = HDCP_STATE_INACTIVE; |
| 631 | |
| 632 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 633 | if (dp->hdcp.ops->off) |
| 634 | dp->hdcp.ops->off(dp->hdcp.data); |
| 635 | } |
| 636 | |
| 637 | dp->ctrl->push_idle(dp->ctrl); |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 638 | dp->ctrl->off(dp->ctrl); |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 639 | dp->panel->deinit(dp->panel); |
| 640 | dp->aux->deinit(dp->aux); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 641 | dp->power_on = false; |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 642 | } |
| 643 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 644 | static int dp_display_handle_disconnect(struct dp_display_private *dp) |
| 645 | { |
| 646 | int rc; |
| 647 | |
| 648 | rc = dp_display_process_hpd_low(dp); |
| 649 | |
| 650 | mutex_lock(&dp->session_lock); |
| 651 | if (rc && dp->power_on) |
| 652 | dp_display_clean(dp); |
| 653 | |
| 654 | if (!dp->usbpd->alt_mode_cfg_done) |
| 655 | dp_display_host_deinit(dp); |
| 656 | |
| 657 | mutex_unlock(&dp->session_lock); |
| 658 | |
| 659 | return rc; |
| 660 | } |
| 661 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 662 | static int dp_display_usbpd_disconnect_cb(struct device *dev) |
| 663 | { |
| 664 | int rc = 0; |
| 665 | struct dp_display_private *dp; |
| 666 | |
| 667 | if (!dev) { |
| 668 | pr_err("invalid dev\n"); |
| 669 | rc = -EINVAL; |
| 670 | goto end; |
| 671 | } |
| 672 | |
| 673 | dp = dev_get_drvdata(dev); |
| 674 | if (!dp) { |
| 675 | pr_err("no driver data found\n"); |
| 676 | rc = -ENODEV; |
| 677 | goto end; |
| 678 | } |
| 679 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 680 | /* |
| 681 | * In case cable/dongle is disconnected during adb shell stop, |
| 682 | * reset psm_enabled flag to false since it is no more needed |
| 683 | */ |
| 684 | if (dp->dp_display.post_open) |
| 685 | dp->debug->psm_enabled = false; |
| 686 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 687 | if (dp->debug->psm_enabled) |
| 688 | dp->link->psm_config(dp->link, &dp->panel->link_info, true); |
| 689 | |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 690 | /* cancel any pending request */ |
| 691 | dp->ctrl->abort(dp->ctrl); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 692 | dp->aux->abort(dp->aux); |
Ajay Singh Parmar | 88617ba | 2017-07-03 00:12:26 -0700 | [diff] [blame] | 693 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 694 | /* wait for idle state */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 695 | cancel_delayed_work(&dp->connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 696 | flush_workqueue(dp->wq); |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 697 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 698 | dp_display_handle_disconnect(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 699 | end: |
| 700 | return rc; |
| 701 | } |
| 702 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 703 | static void dp_display_handle_maintenance_req(struct dp_display_private *dp) |
| 704 | { |
| 705 | mutex_lock(&dp->audio->ops_lock); |
| 706 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 707 | if (dp->audio_supported && !IS_ERR_VALUE(dp->audio_status)) |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 708 | dp->audio->off(dp->audio); |
| 709 | |
| 710 | dp->ctrl->link_maintenance(dp->ctrl); |
| 711 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 712 | if (dp->audio_supported && !IS_ERR_VALUE(dp->audio_status)) |
| 713 | dp->audio_status = dp->audio->on(dp->audio); |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 714 | |
| 715 | mutex_unlock(&dp->audio->ops_lock); |
| 716 | } |
| 717 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 718 | static void dp_display_attention_work(struct work_struct *work) |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 719 | { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 720 | struct dp_display_private *dp = container_of(work, |
| 721 | struct dp_display_private, attention_work); |
| 722 | |
| 723 | if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->cp_irq) { |
| 724 | if (!dp->hdcp.ops->cp_irq(dp->hdcp.data)) |
| 725 | return; |
| 726 | } |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 727 | |
Padmanabhan Komanduru | 0cc4e56 | 2017-08-28 17:03:06 +0530 | [diff] [blame] | 728 | if (dp->link->sink_request & DS_PORT_STATUS_CHANGED) { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 729 | dp_display_handle_disconnect(dp); |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 730 | |
| 731 | if (dp_display_is_sink_count_zero(dp)) { |
| 732 | pr_debug("sink count is zero, nothing to do\n"); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 733 | return; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 734 | } |
| 735 | |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 736 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 737 | return; |
| 738 | } |
| 739 | |
| 740 | if (dp->link->sink_request & DP_TEST_LINK_VIDEO_PATTERN) { |
| 741 | dp_display_handle_disconnect(dp); |
| 742 | |
| 743 | dp->panel->video_test = true; |
| 744 | dp_display_send_hpd_notification(dp, true); |
| 745 | dp->link->send_test_response(dp->link); |
| 746 | |
| 747 | return; |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 748 | } |
| 749 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 750 | if (dp->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN) { |
| 751 | dp->ctrl->process_phy_test_request(dp->ctrl); |
| 752 | return; |
| 753 | } |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 754 | |
Ajay Singh Parmar | 8a1bcde | 2017-11-20 12:37:39 -0800 | [diff] [blame] | 755 | if (dp->link->sink_request & DP_LINK_STATUS_UPDATED) { |
| 756 | dp_display_handle_maintenance_req(dp); |
| 757 | return; |
| 758 | } |
| 759 | |
| 760 | if (dp->link->sink_request & DP_TEST_LINK_TRAINING) { |
| 761 | dp->link->send_test_response(dp->link); |
| 762 | dp_display_handle_maintenance_req(dp); |
| 763 | return; |
Ajay Singh Parmar | db14789 | 2017-10-18 15:42:41 -0700 | [diff] [blame] | 764 | } |
Padmanabhan Komanduru | 5871728 | 2017-08-28 17:01:49 +0530 | [diff] [blame] | 765 | } |
| 766 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 767 | static int dp_display_usbpd_attention_cb(struct device *dev) |
| 768 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 769 | struct dp_display_private *dp; |
| 770 | |
| 771 | if (!dev) { |
| 772 | pr_err("invalid dev\n"); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 773 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 774 | } |
| 775 | |
| 776 | dp = dev_get_drvdata(dev); |
| 777 | if (!dp) { |
| 778 | pr_err("no driver data found\n"); |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 779 | return -ENODEV; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 780 | } |
| 781 | |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 782 | if (dp->usbpd->hpd_irq && dp->usbpd->hpd_high && |
| 783 | dp->power_on) { |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 784 | dp->link->process_request(dp->link); |
| 785 | queue_work(dp->wq, &dp->attention_work); |
| 786 | } else if (dp->usbpd->hpd_high) { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 787 | queue_delayed_work(dp->wq, &dp->connect_work, 0); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 788 | } else { |
| 789 | /* cancel any pending request */ |
| 790 | dp->ctrl->abort(dp->ctrl); |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 791 | dp->aux->abort(dp->aux); |
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 | /* wait for idle state */ |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 794 | cancel_delayed_work(&dp->connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 795 | flush_workqueue(dp->wq); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 796 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 797 | dp_display_handle_disconnect(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 798 | } |
| 799 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 800 | return 0; |
| 801 | } |
| 802 | |
| 803 | static void dp_display_connect_work(struct work_struct *work) |
| 804 | { |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 805 | struct delayed_work *dw = to_delayed_work(work); |
| 806 | struct dp_display_private *dp = container_of(dw, |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 807 | struct dp_display_private, connect_work); |
| 808 | |
| 809 | if (dp->dp_display.is_connected) { |
| 810 | pr_debug("HPD already on\n"); |
| 811 | return; |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 812 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 813 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 814 | dp_display_process_hpd_high(dp); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 815 | } |
| 816 | |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 817 | static void dp_display_deinit_sub_modules(struct dp_display_private *dp) |
| 818 | { |
| 819 | dp_audio_put(dp->audio); |
| 820 | dp_ctrl_put(dp->ctrl); |
| 821 | dp_link_put(dp->link); |
| 822 | dp_panel_put(dp->panel); |
| 823 | dp_aux_put(dp->aux); |
| 824 | dp_power_put(dp->power); |
| 825 | dp_catalog_put(dp->catalog); |
| 826 | dp_parser_put(dp->parser); |
| 827 | dp_usbpd_put(dp->usbpd); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 828 | mutex_destroy(&dp->session_lock); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 829 | dp_debug_put(dp->debug); |
| 830 | } |
| 831 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 832 | static int dp_init_sub_modules(struct dp_display_private *dp) |
| 833 | { |
| 834 | int rc = 0; |
| 835 | struct device *dev = &dp->pdev->dev; |
| 836 | struct dp_usbpd_cb *cb = &dp->usbpd_cb; |
| 837 | struct dp_ctrl_in ctrl_in = { |
| 838 | .dev = dev, |
| 839 | }; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 840 | struct dp_panel_in panel_in = { |
| 841 | .dev = dev, |
| 842 | }; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 843 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 844 | mutex_init(&dp->session_lock); |
| 845 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 846 | dp->parser = dp_parser_get(dp->pdev); |
| 847 | if (IS_ERR(dp->parser)) { |
| 848 | rc = PTR_ERR(dp->parser); |
| 849 | pr_err("failed to initialize parser, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 850 | dp->parser = NULL; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 851 | goto error; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 852 | } |
| 853 | |
Ajay Singh Parmar | d948c05 | 2017-10-27 20:58:58 -0700 | [diff] [blame] | 854 | rc = dp->parser->parse(dp->parser); |
| 855 | if (rc) { |
| 856 | pr_err("device tree parsing failed\n"); |
| 857 | goto error_catalog; |
| 858 | } |
| 859 | |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 860 | dp->catalog = dp_catalog_get(dev, dp->parser); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 861 | if (IS_ERR(dp->catalog)) { |
| 862 | rc = PTR_ERR(dp->catalog); |
| 863 | pr_err("failed to initialize catalog, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 864 | dp->catalog = NULL; |
| 865 | goto error_catalog; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | dp->power = dp_power_get(dp->parser); |
| 869 | if (IS_ERR(dp->power)) { |
| 870 | rc = PTR_ERR(dp->power); |
| 871 | pr_err("failed to initialize power, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 872 | dp->power = NULL; |
| 873 | goto error_power; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 874 | } |
| 875 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 876 | rc = dp->power->power_client_init(dp->power, &dp->priv->phandle); |
| 877 | if (rc) { |
| 878 | pr_err("Power client create failed\n"); |
| 879 | goto error_aux; |
| 880 | } |
| 881 | |
Padmanabhan Komanduru | 2e9914b | 2017-08-04 20:51:31 +0530 | [diff] [blame] | 882 | 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] | 883 | if (IS_ERR(dp->aux)) { |
| 884 | rc = PTR_ERR(dp->aux); |
| 885 | pr_err("failed to initialize aux, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 886 | dp->aux = NULL; |
| 887 | goto error_aux; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 888 | } |
| 889 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 890 | rc = dp->aux->drm_aux_register(dp->aux); |
| 891 | if (rc) { |
| 892 | pr_err("DRM DP AUX register failed\n"); |
| 893 | goto error_link; |
| 894 | } |
| 895 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 896 | dp->link = dp_link_get(dev, dp->aux); |
| 897 | if (IS_ERR(dp->link)) { |
| 898 | rc = PTR_ERR(dp->link); |
| 899 | pr_err("failed to initialize link, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 900 | dp->link = NULL; |
| 901 | goto error_link; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 902 | } |
| 903 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 904 | panel_in.aux = dp->aux; |
| 905 | panel_in.catalog = &dp->catalog->panel; |
| 906 | panel_in.link = dp->link; |
| 907 | |
| 908 | dp->panel = dp_panel_get(&panel_in); |
| 909 | if (IS_ERR(dp->panel)) { |
| 910 | rc = PTR_ERR(dp->panel); |
| 911 | pr_err("failed to initialize panel, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 912 | dp->panel = NULL; |
| 913 | goto error_panel; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 914 | } |
| 915 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 916 | ctrl_in.link = dp->link; |
| 917 | ctrl_in.panel = dp->panel; |
| 918 | ctrl_in.aux = dp->aux; |
| 919 | ctrl_in.power = dp->power; |
| 920 | ctrl_in.catalog = &dp->catalog->ctrl; |
| 921 | ctrl_in.parser = dp->parser; |
| 922 | |
| 923 | dp->ctrl = dp_ctrl_get(&ctrl_in); |
| 924 | if (IS_ERR(dp->ctrl)) { |
| 925 | rc = PTR_ERR(dp->ctrl); |
| 926 | pr_err("failed to initialize ctrl, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 927 | dp->ctrl = NULL; |
| 928 | goto error_ctrl; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 929 | } |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 930 | |
| 931 | dp->audio = dp_audio_get(dp->pdev, dp->panel, &dp->catalog->audio); |
| 932 | if (IS_ERR(dp->audio)) { |
| 933 | rc = PTR_ERR(dp->audio); |
| 934 | pr_err("failed to initialize audio, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 935 | dp->audio = NULL; |
| 936 | goto error_audio; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 937 | } |
| 938 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 939 | cb->configure = dp_display_usbpd_configure_cb; |
| 940 | cb->disconnect = dp_display_usbpd_disconnect_cb; |
| 941 | cb->attention = dp_display_usbpd_attention_cb; |
| 942 | |
| 943 | dp->usbpd = dp_usbpd_get(dev, cb); |
| 944 | if (IS_ERR(dp->usbpd)) { |
| 945 | rc = PTR_ERR(dp->usbpd); |
| 946 | pr_err("failed to initialize usbpd, rc = %d\n", rc); |
| 947 | dp->usbpd = NULL; |
| 948 | goto error_usbpd; |
| 949 | } |
| 950 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 951 | dp->debug = dp_debug_get(dev, dp->panel, dp->usbpd, |
Samantha Tran | b6a5cd8 | 2018-02-01 14:47:16 -0800 | [diff] [blame] | 952 | dp->link, dp->aux, &dp->dp_display.connector, |
| 953 | dp->catalog); |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 954 | if (IS_ERR(dp->debug)) { |
| 955 | rc = PTR_ERR(dp->debug); |
| 956 | pr_err("failed to initialize debug, rc = %d\n", rc); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 957 | dp->debug = NULL; |
| 958 | goto error_debug; |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 959 | } |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 960 | |
| 961 | return rc; |
| 962 | error_debug: |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 963 | dp_usbpd_put(dp->usbpd); |
| 964 | error_usbpd: |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 965 | dp_audio_put(dp->audio); |
| 966 | error_audio: |
| 967 | dp_ctrl_put(dp->ctrl); |
| 968 | error_ctrl: |
| 969 | dp_panel_put(dp->panel); |
| 970 | error_panel: |
| 971 | dp_link_put(dp->link); |
| 972 | error_link: |
| 973 | dp_aux_put(dp->aux); |
| 974 | error_aux: |
| 975 | dp_power_put(dp->power); |
| 976 | error_power: |
| 977 | dp_catalog_put(dp->catalog); |
| 978 | error_catalog: |
| 979 | dp_parser_put(dp->parser); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 980 | error: |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 981 | mutex_destroy(&dp->session_lock); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 982 | return rc; |
| 983 | } |
| 984 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 985 | static void dp_display_post_init(struct dp_display *dp_display) |
| 986 | { |
| 987 | int rc = 0; |
| 988 | struct dp_display_private *dp; |
| 989 | |
| 990 | if (!dp_display) { |
| 991 | pr_err("invalid input\n"); |
| 992 | rc = -EINVAL; |
| 993 | goto end; |
| 994 | } |
| 995 | |
| 996 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 997 | if (IS_ERR_OR_NULL(dp)) { |
| 998 | pr_err("invalid params\n"); |
| 999 | rc = -EINVAL; |
| 1000 | goto end; |
| 1001 | } |
| 1002 | |
| 1003 | rc = dp_init_sub_modules(dp); |
| 1004 | if (rc) |
| 1005 | goto end; |
| 1006 | |
| 1007 | dp_display_initialize_hdcp(dp); |
| 1008 | |
| 1009 | dp_display->post_init = NULL; |
| 1010 | end: |
| 1011 | pr_debug("%s\n", rc ? "failed" : "success"); |
| 1012 | } |
| 1013 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1014 | static int dp_display_set_mode(struct dp_display *dp_display, |
| 1015 | struct dp_display_mode *mode) |
| 1016 | { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1017 | const u32 num_components = 3, default_bpp = 24; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1018 | struct dp_display_private *dp; |
| 1019 | |
| 1020 | if (!dp_display) { |
| 1021 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1022 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1023 | } |
| 1024 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1025 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1026 | mutex_lock(&dp->session_lock); |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1027 | mode->timing.bpp = |
| 1028 | dp_display->connector->display_info.bpc * num_components; |
| 1029 | if (!mode->timing.bpp) |
| 1030 | mode->timing.bpp = default_bpp; |
| 1031 | |
| 1032 | mode->timing.bpp = dp->panel->get_mode_bpp(dp->panel, |
| 1033 | mode->timing.bpp, mode->timing.pixel_clk_khz); |
| 1034 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1035 | dp->panel->pinfo = mode->timing; |
Ajay Singh Parmar | fae1167 | 2017-09-01 19:49:30 -0700 | [diff] [blame] | 1036 | dp->panel->init(dp->panel); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1037 | mutex_unlock(&dp->session_lock); |
| 1038 | |
| 1039 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1040 | } |
| 1041 | |
| 1042 | static int dp_display_prepare(struct dp_display *dp) |
| 1043 | { |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | static int dp_display_enable(struct dp_display *dp_display) |
| 1048 | { |
| 1049 | int rc = 0; |
| 1050 | struct dp_display_private *dp; |
| 1051 | |
| 1052 | if (!dp_display) { |
| 1053 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1054 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1055 | } |
| 1056 | |
| 1057 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1058 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1059 | mutex_lock(&dp->session_lock); |
| 1060 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1061 | if (dp->power_on) { |
| 1062 | pr_debug("Link already setup, return\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1063 | goto end; |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1064 | } |
| 1065 | |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 1066 | dp->aux->init(dp->aux, dp->parser->aux_cfg); |
| 1067 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1068 | rc = dp->ctrl->on(dp->ctrl); |
Padmanabhan Komanduru | 04aa2a7 | 2017-11-06 17:59:24 +0530 | [diff] [blame] | 1069 | |
| 1070 | if (dp->debug->tpg_state) |
| 1071 | dp->panel->tpg_config(dp->panel, true); |
| 1072 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1073 | if (!rc) |
| 1074 | dp->power_on = true; |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1075 | end: |
| 1076 | mutex_unlock(&dp->session_lock); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1077 | return rc; |
| 1078 | } |
| 1079 | |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1080 | static int dp_display_post_enable(struct dp_display *dp_display) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1081 | { |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1082 | struct dp_display_private *dp; |
| 1083 | |
| 1084 | if (!dp_display) { |
| 1085 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1086 | return -EINVAL; |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1090 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1091 | mutex_lock(&dp->session_lock); |
| 1092 | |
| 1093 | if (!dp->power_on) { |
| 1094 | pr_debug("Link not setup, return\n"); |
| 1095 | goto end; |
| 1096 | } |
| 1097 | |
Padmanabhan Komanduru | 62a01d0 | 2017-11-03 19:44:13 +0530 | [diff] [blame] | 1098 | dp->panel->spd_config(dp->panel); |
| 1099 | |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 1100 | if (dp->audio_supported) { |
Padmanabhan Komanduru | 0cc4e56 | 2017-08-28 17:03:06 +0530 | [diff] [blame] | 1101 | dp->audio->bw_code = dp->link->link_params.bw_code; |
| 1102 | dp->audio->lane_count = dp->link->link_params.lane_count; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 1103 | dp->audio_status = dp->audio->on(dp->audio); |
Ajay Singh Parmar | 3dc92a2 | 2017-08-05 00:09:35 -0700 | [diff] [blame] | 1104 | } |
| 1105 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1106 | dp_display_update_hdcp_info(dp); |
| 1107 | |
| 1108 | if (dp_display_is_hdcp_enabled(dp)) { |
| 1109 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 1110 | |
| 1111 | dp->hdcp_status = HDCP_STATE_AUTHENTICATING; |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1112 | queue_delayed_work(dp->wq, &dp->hdcp_cb_work, HZ / 2); |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1113 | } |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1114 | |
| 1115 | dp->panel->setup_hdr(dp->panel, NULL); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1116 | end: |
Ajay Singh Parmar | 2307c20 | 2017-11-12 20:14:30 -0800 | [diff] [blame] | 1117 | /* clear framework event notifier */ |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1118 | dp_display->post_open = NULL; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1119 | dp->aux->state |= DP_STATE_CTRL_POWERED_ON; |
Ajay Singh Parmar | 2307c20 | 2017-11-12 20:14:30 -0800 | [diff] [blame] | 1120 | |
Padmanabhan Komanduru | ece783d | 2017-10-11 19:50:01 +0530 | [diff] [blame] | 1121 | complete_all(&dp->notification_comp); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1122 | mutex_unlock(&dp->session_lock); |
| 1123 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | static int dp_display_pre_disable(struct dp_display *dp_display) |
| 1127 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1128 | struct dp_display_private *dp; |
| 1129 | |
| 1130 | if (!dp_display) { |
| 1131 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1132 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1133 | } |
| 1134 | |
| 1135 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1136 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1137 | mutex_lock(&dp->session_lock); |
| 1138 | |
| 1139 | if (!dp->power_on) { |
| 1140 | pr_debug("Link already powered off, return\n"); |
| 1141 | goto end; |
| 1142 | } |
| 1143 | |
Tatenda Chipeperekwa | 3954736 | 2017-07-07 17:44:09 -0700 | [diff] [blame] | 1144 | if (dp_display_is_hdcp_enabled(dp)) { |
| 1145 | dp->hdcp_status = HDCP_STATE_INACTIVE; |
| 1146 | |
| 1147 | cancel_delayed_work_sync(&dp->hdcp_cb_work); |
| 1148 | if (dp->hdcp.ops->off) |
| 1149 | dp->hdcp.ops->off(dp->hdcp.data); |
| 1150 | } |
| 1151 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 1152 | if (dp->usbpd->hpd_high && dp->usbpd->alt_mode_cfg_done) { |
| 1153 | if (dp->audio_supported) |
| 1154 | dp->audio->off(dp->audio); |
| 1155 | |
| 1156 | dp->link->psm_config(dp->link, &dp->panel->link_info, true); |
| 1157 | dp->debug->psm_enabled = true; |
| 1158 | } |
| 1159 | |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1160 | dp->ctrl->push_idle(dp->ctrl); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1161 | end: |
| 1162 | mutex_unlock(&dp->session_lock); |
| 1163 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1164 | } |
| 1165 | |
| 1166 | static int dp_display_disable(struct dp_display *dp_display) |
| 1167 | { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1168 | struct dp_display_private *dp; |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1169 | struct drm_connector *connector; |
| 1170 | struct sde_connector_state *c_state; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1171 | |
| 1172 | if (!dp_display) { |
| 1173 | pr_err("invalid input\n"); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1174 | return -EINVAL; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1175 | } |
| 1176 | |
| 1177 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1178 | connector = dp->dp_display.connector; |
| 1179 | c_state = to_sde_connector_state(connector->state); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1180 | |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1181 | mutex_lock(&dp->session_lock); |
| 1182 | |
| 1183 | if (!dp->power_on || !dp->core_initialized) { |
| 1184 | pr_debug("Link already powered off, return\n"); |
| 1185 | goto end; |
| 1186 | } |
Ajay Singh Parmar | bf9531c | 2017-08-11 19:02:02 -0700 | [diff] [blame] | 1187 | |
Padmanabhan Komanduru | 8cf0c22 | 2017-08-16 21:11:23 +0530 | [diff] [blame] | 1188 | dp->ctrl->off(dp->ctrl); |
Ajay Singh Parmar | fae1167 | 2017-09-01 19:49:30 -0700 | [diff] [blame] | 1189 | dp->panel->deinit(dp->panel); |
Ajay Singh Parmar | 420e7e1 | 2018-01-11 21:27:16 -0800 | [diff] [blame] | 1190 | dp->aux->deinit(dp->aux); |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1191 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1192 | connector->hdr_eotf = 0; |
| 1193 | connector->hdr_metadata_type_one = 0; |
| 1194 | connector->hdr_max_luminance = 0; |
| 1195 | connector->hdr_avg_luminance = 0; |
| 1196 | connector->hdr_min_luminance = 0; |
| 1197 | |
| 1198 | memset(&c_state->hdr_meta, 0, sizeof(c_state->hdr_meta)); |
| 1199 | |
Padmanabhan Komanduru | ac827ee | 2018-01-18 18:51:25 +0530 | [diff] [blame] | 1200 | /* |
| 1201 | * In case of framework reboot, the DP off sequence is executed without |
| 1202 | * any notification from driver. Initialize post_open callback to notify |
| 1203 | * DP connection once framework restarts. |
| 1204 | */ |
| 1205 | if (dp->usbpd->hpd_high && dp->usbpd->alt_mode_cfg_done) { |
| 1206 | dp_display->post_open = dp_display_post_open; |
| 1207 | dp->dp_display.is_connected = false; |
| 1208 | } |
Padmanabhan Komanduru | 7bf08e9 | 2017-05-23 02:56:54 -0700 | [diff] [blame] | 1209 | dp->power_on = false; |
Ajay Singh Parmar | 09e6af6 | 2018-01-19 17:56:21 -0800 | [diff] [blame] | 1210 | dp->aux->state = DP_STATE_CTRL_POWERED_OFF; |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1211 | end: |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1212 | complete_all(&dp->notification_comp); |
Tatenda Chipeperekwa | db328a8 | 2017-09-29 15:15:56 -0700 | [diff] [blame] | 1213 | mutex_unlock(&dp->session_lock); |
| 1214 | return 0; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1215 | } |
| 1216 | |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 1217 | static int dp_request_irq(struct dp_display *dp_display) |
| 1218 | { |
| 1219 | int rc = 0; |
| 1220 | struct dp_display_private *dp; |
| 1221 | |
| 1222 | if (!dp_display) { |
| 1223 | pr_err("invalid input\n"); |
| 1224 | return -EINVAL; |
| 1225 | } |
| 1226 | |
| 1227 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1228 | |
| 1229 | dp->irq = irq_of_parse_and_map(dp->pdev->dev.of_node, 0); |
| 1230 | if (dp->irq < 0) { |
| 1231 | rc = dp->irq; |
| 1232 | pr_err("failed to get irq: %d\n", rc); |
| 1233 | return rc; |
| 1234 | } |
| 1235 | |
| 1236 | rc = devm_request_irq(&dp->pdev->dev, dp->irq, dp_display_irq, |
| 1237 | IRQF_TRIGGER_HIGH, "dp_display_isr", dp); |
| 1238 | if (rc < 0) { |
| 1239 | pr_err("failed to request IRQ%u: %d\n", |
| 1240 | dp->irq, rc); |
| 1241 | return rc; |
| 1242 | } |
| 1243 | disable_irq(dp->irq); |
| 1244 | |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1248 | static struct dp_debug *dp_get_debug(struct dp_display *dp_display) |
| 1249 | { |
| 1250 | struct dp_display_private *dp; |
| 1251 | |
| 1252 | if (!dp_display) { |
| 1253 | pr_err("invalid input\n"); |
| 1254 | return ERR_PTR(-EINVAL); |
| 1255 | } |
| 1256 | |
| 1257 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1258 | |
| 1259 | return dp->debug; |
| 1260 | } |
| 1261 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1262 | static int dp_display_unprepare(struct dp_display *dp) |
| 1263 | { |
| 1264 | return 0; |
| 1265 | } |
| 1266 | |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1267 | 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] | 1268 | { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1269 | const u32 num_components = 3, default_bpp = 24; |
| 1270 | struct dp_display_private *dp_display; |
| 1271 | struct drm_dp_link *link_info; |
| 1272 | u32 mode_rate_khz = 0, supported_rate_khz = 0, mode_bpp = 0; |
| 1273 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1274 | if (!dp || !mode_pclk_khz || !dp->connector) { |
Tatenda Chipeperekwa | 8a44bd9 | 2017-10-05 16:32:06 -0700 | [diff] [blame] | 1275 | pr_err("invalid params\n"); |
| 1276 | return -EINVAL; |
| 1277 | } |
| 1278 | |
| 1279 | dp_display = container_of(dp, struct dp_display_private, dp_display); |
| 1280 | link_info = &dp_display->panel->link_info; |
| 1281 | |
| 1282 | mode_bpp = dp->connector->display_info.bpc * num_components; |
| 1283 | if (!mode_bpp) |
| 1284 | mode_bpp = default_bpp; |
| 1285 | |
| 1286 | mode_bpp = dp_display->panel->get_mode_bpp(dp_display->panel, |
| 1287 | mode_bpp, mode_pclk_khz); |
| 1288 | |
| 1289 | mode_rate_khz = mode_pclk_khz * mode_bpp; |
| 1290 | supported_rate_khz = link_info->num_lanes * link_info->rate * 8; |
| 1291 | |
| 1292 | if (mode_rate_khz > supported_rate_khz) |
| 1293 | return MODE_BAD; |
| 1294 | |
| 1295 | return MODE_OK; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1296 | } |
| 1297 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1298 | static int dp_display_get_modes(struct dp_display *dp, |
| 1299 | struct dp_display_mode *dp_mode) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1300 | { |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1301 | struct dp_display_private *dp_display; |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1302 | int ret = 0; |
| 1303 | |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1304 | if (!dp || !dp->connector) { |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1305 | pr_err("invalid params\n"); |
| 1306 | return 0; |
| 1307 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1308 | |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1309 | dp_display = container_of(dp, struct dp_display_private, dp_display); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1310 | |
Padmanabhan Komanduru | fdafc41 | 2017-09-11 13:13:38 +0530 | [diff] [blame] | 1311 | ret = dp_display->panel->get_modes(dp_display->panel, |
| 1312 | dp->connector, dp_mode); |
| 1313 | if (dp_mode->timing.pixel_clk_khz) |
| 1314 | dp->max_pclk_khz = dp_mode->timing.pixel_clk_khz; |
Padmanabhan Komanduru | d84b38b | 2017-05-24 04:24:57 -0700 | [diff] [blame] | 1315 | return ret; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1316 | } |
| 1317 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1318 | static int dp_display_config_hdr(struct dp_display *dp_display, |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1319 | struct drm_msm_ext_hdr_metadata *hdr) |
| 1320 | { |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1321 | int rc = 0; |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1322 | struct dp_display_private *dp; |
| 1323 | |
| 1324 | if (!dp_display) { |
| 1325 | pr_err("invalid input\n"); |
| 1326 | return -EINVAL; |
| 1327 | } |
| 1328 | |
| 1329 | dp = container_of(dp_display, struct dp_display_private, dp_display); |
| 1330 | |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1331 | rc = dp->panel->setup_hdr(dp->panel, hdr); |
Ajay Singh Parmar | 973cab1 | 2017-11-15 15:33:33 -0800 | [diff] [blame] | 1332 | |
| 1333 | return rc; |
Ajay Singh Parmar | 9c842d4 | 2017-09-21 13:02:05 -0700 | [diff] [blame] | 1334 | } |
| 1335 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1336 | static int dp_display_create_workqueue(struct dp_display_private *dp) |
| 1337 | { |
| 1338 | dp->wq = create_singlethread_workqueue("drm_dp"); |
| 1339 | if (IS_ERR_OR_NULL(dp->wq)) { |
| 1340 | pr_err("Error creating wq\n"); |
| 1341 | return -EPERM; |
| 1342 | } |
| 1343 | |
| 1344 | 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] | 1345 | INIT_DELAYED_WORK(&dp->connect_work, dp_display_connect_work); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1346 | INIT_WORK(&dp->attention_work, dp_display_attention_work); |
| 1347 | |
| 1348 | return 0; |
| 1349 | } |
| 1350 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1351 | static int dp_display_probe(struct platform_device *pdev) |
| 1352 | { |
| 1353 | int rc = 0; |
| 1354 | struct dp_display_private *dp; |
| 1355 | |
| 1356 | if (!pdev || !pdev->dev.of_node) { |
| 1357 | pr_err("pdev not found\n"); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1358 | rc = -ENODEV; |
| 1359 | goto bail; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1360 | } |
| 1361 | |
| 1362 | dp = devm_kzalloc(&pdev->dev, sizeof(*dp), GFP_KERNEL); |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1363 | if (!dp) { |
| 1364 | rc = -ENOMEM; |
| 1365 | goto bail; |
| 1366 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1367 | |
Ajay Singh Parmar | f63dbc7ab | 2017-07-02 22:45:28 -0700 | [diff] [blame] | 1368 | init_completion(&dp->notification_comp); |
| 1369 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1370 | dp->pdev = pdev; |
| 1371 | dp->name = "drm_dp"; |
Ajay Singh Parmar | 8433730 | 2017-12-12 14:26:41 -0800 | [diff] [blame] | 1372 | dp->audio_status = -ENODEV; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1373 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1374 | rc = dp_display_create_workqueue(dp); |
| 1375 | if (rc) { |
| 1376 | pr_err("Failed to create workqueue\n"); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1377 | goto error; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1378 | } |
| 1379 | |
| 1380 | platform_set_drvdata(pdev, dp); |
| 1381 | |
| 1382 | g_dp_display = &dp->dp_display; |
| 1383 | |
| 1384 | g_dp_display->enable = dp_display_enable; |
| 1385 | g_dp_display->post_enable = dp_display_post_enable; |
| 1386 | g_dp_display->pre_disable = dp_display_pre_disable; |
| 1387 | g_dp_display->disable = dp_display_disable; |
| 1388 | g_dp_display->set_mode = dp_display_set_mode; |
| 1389 | g_dp_display->validate_mode = dp_display_validate_mode; |
| 1390 | g_dp_display->get_modes = dp_display_get_modes; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1391 | g_dp_display->prepare = dp_display_prepare; |
| 1392 | g_dp_display->unprepare = dp_display_unprepare; |
Padmanabhan Komanduru | 15e757d | 2017-05-24 04:07:31 -0700 | [diff] [blame] | 1393 | g_dp_display->request_irq = dp_request_irq; |
Samantha Tran | 2d1ed73 | 2017-07-31 17:30:14 -0700 | [diff] [blame] | 1394 | g_dp_display->get_debug = dp_get_debug; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1395 | g_dp_display->post_open = dp_display_post_open; |
| 1396 | g_dp_display->post_init = dp_display_post_init; |
Ajay Singh Parmar | 87af50b | 2017-12-22 22:22:55 -0800 | [diff] [blame] | 1397 | g_dp_display->config_hdr = dp_display_config_hdr; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1398 | |
| 1399 | rc = component_add(&pdev->dev, &dp_display_comp_ops); |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1400 | if (rc) { |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1401 | pr_err("component add failed, rc=%d\n", rc); |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1402 | goto error; |
Tatenda Chipeperekwa | 47ddbcd | 2017-08-30 13:43:21 -0700 | [diff] [blame] | 1403 | } |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1404 | |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1405 | return 0; |
Ajay Singh Parmar | 315e585 | 2017-11-23 21:47:32 -0800 | [diff] [blame] | 1406 | error: |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1407 | devm_kfree(&pdev->dev, dp); |
| 1408 | bail: |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1409 | return rc; |
| 1410 | } |
| 1411 | |
Padmanabhan Komanduru | 6375861 | 2017-05-23 01:47:18 -0700 | [diff] [blame] | 1412 | int dp_display_get_displays(void **displays, int count) |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1413 | { |
Padmanabhan Komanduru | 6375861 | 2017-05-23 01:47:18 -0700 | [diff] [blame] | 1414 | if (!displays) { |
| 1415 | pr_err("invalid data\n"); |
| 1416 | return -EINVAL; |
| 1417 | } |
| 1418 | |
| 1419 | if (count != 1) { |
| 1420 | pr_err("invalid number of displays\n"); |
| 1421 | return -EINVAL; |
| 1422 | } |
| 1423 | |
| 1424 | displays[0] = g_dp_display; |
| 1425 | return count; |
| 1426 | } |
| 1427 | |
| 1428 | int dp_display_get_num_of_displays(void) |
| 1429 | { |
| 1430 | return 1; |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1431 | } |
| 1432 | |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1433 | static int dp_display_remove(struct platform_device *pdev) |
| 1434 | { |
| 1435 | struct dp_display_private *dp; |
| 1436 | |
| 1437 | if (!pdev) |
| 1438 | return -EINVAL; |
| 1439 | |
| 1440 | dp = platform_get_drvdata(pdev); |
| 1441 | |
| 1442 | dp_display_deinit_sub_modules(dp); |
| 1443 | |
| 1444 | platform_set_drvdata(pdev, NULL); |
| 1445 | devm_kfree(&pdev->dev, dp); |
| 1446 | |
| 1447 | return 0; |
| 1448 | } |
| 1449 | |
| 1450 | static struct platform_driver dp_display_driver = { |
| 1451 | .probe = dp_display_probe, |
| 1452 | .remove = dp_display_remove, |
| 1453 | .driver = { |
| 1454 | .name = "msm-dp-display", |
| 1455 | .of_match_table = dp_dt_match, |
| 1456 | }, |
| 1457 | }; |
| 1458 | |
| 1459 | static int __init dp_display_init(void) |
| 1460 | { |
| 1461 | int ret; |
| 1462 | |
| 1463 | ret = platform_driver_register(&dp_display_driver); |
| 1464 | if (ret) { |
| 1465 | pr_err("driver register failed"); |
| 1466 | return ret; |
| 1467 | } |
| 1468 | |
| 1469 | return ret; |
| 1470 | } |
Ajay Singh Parmar | 25e2ee5 | 2017-10-20 23:50:53 -0700 | [diff] [blame] | 1471 | late_initcall(dp_display_init); |
Ajay Singh Parmar | 7766887 | 2017-03-28 21:36:15 -0700 | [diff] [blame] | 1472 | |
| 1473 | static void __exit dp_display_cleanup(void) |
| 1474 | { |
| 1475 | platform_driver_unregister(&dp_display_driver); |
| 1476 | } |
| 1477 | module_exit(dp_display_cleanup); |
| 1478 | |