Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | */ |
| 14 | |
| 15 | #include <linux/device.h> |
| 16 | #include <linux/i2c.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/input.h> |
| 20 | #include <linux/types.h> |
| 21 | #include <linux/module.h> |
| 22 | #include <linux/fs.h> |
| 23 | #include <linux/of.h> |
| 24 | #include <linux/of_graph.h> |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/of_gpio.h> |
| 27 | #include <linux/gpio.h> |
| 28 | #include <linux/delay.h> |
| 29 | #include <linux/regulator/consumer.h> |
| 30 | #include <linux/rwlock.h> |
| 31 | #include <linux/leds.h> |
| 32 | |
| 33 | struct vxr7200 { |
| 34 | struct device *dev; |
| 35 | struct device_node *host_node; |
| 36 | |
| 37 | u8 i2c_addr; |
| 38 | int irq; |
| 39 | u32 vxr_3v3_en; |
| 40 | u32 led_5v_en; |
| 41 | u32 led_drive_en1; |
| 42 | u32 led_drive_en2; |
| 43 | u32 display_1v8_en; |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 44 | u32 mipi_switch_1v8_en; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 45 | u32 display_res1; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 46 | bool gpioInit; |
| 47 | |
| 48 | struct i2c_client *i2c_client; |
| 49 | |
| 50 | struct regulator *vddio; |
| 51 | struct regulator *lab; |
| 52 | struct regulator *ibb; |
| 53 | |
| 54 | bool power_on; |
| 55 | }; |
| 56 | |
Rajesh Bharathwaj | 9cd60e0 | 2020-03-24 18:04:14 -0700 | [diff] [blame] | 57 | static bool dsi_way; |
| 58 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 59 | static int vxr7200_read(struct vxr7200 *pdata, u8 *reg, u8 *buf, u32 size) |
| 60 | { |
| 61 | struct i2c_client *client = pdata->i2c_client; |
| 62 | struct i2c_msg msg[2] = { |
| 63 | { |
| 64 | .addr = client->addr, |
| 65 | .flags = 0, |
| 66 | .len = 4, |
| 67 | .buf = reg, |
| 68 | }, |
| 69 | { |
| 70 | .addr = client->addr, |
| 71 | .flags = I2C_M_RD, |
| 72 | .len = size, |
| 73 | .buf = buf, |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | if (i2c_transfer(client->adapter, msg, 2) != 2) { |
| 78 | pr_err("i2c read failed\n"); |
| 79 | return -EIO; |
| 80 | } |
| 81 | |
| 82 | return 0; |
| 83 | } |
| 84 | |
| 85 | static int turnGpio(struct vxr7200 *pdata, int gpio, char *name, bool on) |
| 86 | { |
| 87 | int ret = -1; |
| 88 | |
| 89 | pr_info("%s vxr7200 gpio:%d, name:%s, on:%d\n", __func__, gpio, |
| 90 | name, on); |
| 91 | if (!pdata->gpioInit) { |
| 92 | ret = gpio_request(gpio, name); |
| 93 | if (ret) { |
| 94 | pr_err("vxr7200 %s gpio request failed\n", name); |
| 95 | goto error; |
| 96 | } |
| 97 | } |
| 98 | if (on) { |
| 99 | ret = gpio_direction_output(gpio, 0); |
| 100 | if (ret) { |
| 101 | pr_err("vxr7200 gpio direction failed\n"); |
| 102 | goto error; |
| 103 | } |
| 104 | gpio_set_value(gpio, 1); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 105 | msleep(20); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 106 | pr_debug("%s vxr7200 gpio:%d set to high\n", __func__, gpio); |
| 107 | } else { |
| 108 | ret = gpio_direction_output(gpio, 1); |
| 109 | if (ret) { |
| 110 | pr_err("vxr7200 gpio direction failed\n"); |
| 111 | goto error; |
| 112 | } |
| 113 | gpio_set_value(gpio, 0); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 114 | msleep(20); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 115 | pr_debug("%s vxr7200 gpio:%d set to low\n", __func__, gpio); |
| 116 | } |
| 117 | return 0; |
| 118 | error: |
| 119 | return -EINVAL; |
| 120 | } |
| 121 | |
| 122 | static void vxr7200_set_gpios(struct vxr7200 *pdata, bool turnOn) |
| 123 | { |
| 124 | int rc; |
| 125 | |
| 126 | pr_debug("%s, turnOn:%d\n", __func__, turnOn); |
| 127 | if (pdata) { |
| 128 | rc = turnGpio(pdata, pdata->vxr_3v3_en, "vxr_3v3_en", turnOn); |
| 129 | if (rc) |
| 130 | goto gpio1Fail; |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 131 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 132 | rc = turnGpio(pdata, pdata->display_res1, |
| 133 | "display_res1", turnOn); |
| 134 | if (rc) |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 135 | goto gpio2Fail; |
| 136 | |
| 137 | rc = turnGpio(pdata, pdata->display_1v8_en, |
| 138 | "disp_1v8_en", turnOn); |
| 139 | if (rc) |
| 140 | goto gpio3Fail; |
| 141 | |
| 142 | rc = turnGpio(pdata, pdata->mipi_switch_1v8_en, |
| 143 | "mipi_switch_1v8_en", turnOn); |
| 144 | if (rc) |
| 145 | goto gpio4Fail; |
| 146 | |
| 147 | rc = turnGpio(pdata, pdata->led_5v_en, "led_5v_en", turnOn); |
| 148 | if (rc) |
| 149 | goto gpio5Fail; |
| 150 | |
| 151 | rc = turnGpio(pdata, pdata->led_drive_en1, |
| 152 | "led_drive_en1", turnOn); |
| 153 | if (rc) |
| 154 | goto gpio6Fail; |
| 155 | |
| 156 | rc = turnGpio(pdata, pdata->led_drive_en2, |
| 157 | "led_drive_en2", turnOn); |
| 158 | if (rc) |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 159 | goto gpio7Fail; |
| 160 | } |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 161 | return; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 162 | |
| 163 | gpio7Fail: |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 164 | gpio_free(pdata->led_drive_en2); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 165 | gpio6Fail: |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 166 | gpio_free(pdata->led_drive_en1); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 167 | gpio5Fail: |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 168 | gpio_free(pdata->led_5v_en); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 169 | gpio4Fail: |
| 170 | gpio_free(pdata->mipi_switch_1v8_en); |
| 171 | gpio3Fail: |
| 172 | gpio_free(pdata->display_1v8_en); |
| 173 | gpio2Fail: |
| 174 | gpio_free(pdata->display_res1); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 175 | gpio1Fail: |
| 176 | gpio_free(pdata->vxr_3v3_en); |
| 177 | } |
| 178 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 179 | static int vxr7200_parse_dt(struct device *dev, |
| 180 | struct vxr7200 *pdata) |
| 181 | { |
| 182 | struct device_node *np = dev->of_node; |
| 183 | int rc = 0; |
| 184 | |
| 185 | pdata->vxr_3v3_en = |
| 186 | of_get_named_gpio(np, "qcom,vxr_3v3_en", 0); |
| 187 | if (!gpio_is_valid(pdata->vxr_3v3_en)) { |
| 188 | pr_err("vxr_3v3_en gpio not specified\n"); |
| 189 | rc = -EINVAL; |
| 190 | } |
| 191 | |
| 192 | pdata->led_5v_en = |
| 193 | of_get_named_gpio(np, "qcom,led-5v-en-gpio", 0); |
| 194 | if (!gpio_is_valid(pdata->led_5v_en)) { |
| 195 | pr_err("led_5v_en gpio not specified\n"); |
| 196 | rc = -EINVAL; |
| 197 | } |
| 198 | |
| 199 | pdata->led_drive_en1 = |
| 200 | of_get_named_gpio(np, "qcom,led-driver-en1-gpio", 0); |
| 201 | if (!gpio_is_valid(pdata->led_drive_en1)) { |
| 202 | pr_err("led_drive_en1 gpio not specified\n"); |
| 203 | rc = -EINVAL; |
| 204 | } |
| 205 | |
| 206 | pdata->led_drive_en2 = |
| 207 | of_get_named_gpio(np, "qcom,led-driver-en2-gpio", 0); |
| 208 | if (!gpio_is_valid(pdata->led_drive_en2)) { |
| 209 | pr_err("led_drive_en2 gpio not specified\n"); |
| 210 | rc = -EINVAL; |
| 211 | } |
| 212 | |
| 213 | pdata->display_1v8_en = |
| 214 | of_get_named_gpio(np, "qcom,1p8-en-gpio", 0); |
| 215 | if (!gpio_is_valid(pdata->display_1v8_en)) { |
| 216 | pr_err("display_1v8_en gpio not specified\n"); |
| 217 | rc = -EINVAL; |
| 218 | } |
| 219 | |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 220 | pdata->mipi_switch_1v8_en = |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 221 | of_get_named_gpio(np, "qcom,switch-power-gpio", 0); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 222 | if (!gpio_is_valid(pdata->mipi_switch_1v8_en)) { |
| 223 | pr_err("mipi_switch_1v8_en gpio not specified\n"); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 224 | rc = -EINVAL; |
| 225 | } |
| 226 | |
| 227 | pdata->display_res1 = |
| 228 | of_get_named_gpio(np, "qcom,platform-reset-gpio", 0); |
| 229 | if (!gpio_is_valid(pdata->display_res1)) { |
| 230 | pr_err("display_res1 gpio not specified\n"); |
| 231 | rc = -EINVAL; |
| 232 | } |
| 233 | |
| 234 | if (!rc) |
| 235 | vxr7200_set_gpios(pdata, true); |
| 236 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 237 | if (!pdata->gpioInit) |
| 238 | pdata->gpioInit = true; |
| 239 | |
| 240 | return rc; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | static void vxr7200_display_pwr_enable_vregs(struct vxr7200 *pdata) |
| 244 | { |
| 245 | int rc = 0; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 246 | pdata->vddio = devm_regulator_get(pdata->dev, "pm660_l11"); |
| 247 | rc = PTR_RET(pdata->vddio); |
| 248 | if (rc) { |
| 249 | pr_err("Failed to get pm660_l11 regulator %s\n", __func__); |
| 250 | goto vddio_fail; |
| 251 | } |
| 252 | rc = regulator_set_load(pdata->vddio, 62000); |
| 253 | if (rc < 0) { |
| 254 | pr_err("Load setting failed for vddio %s\n", __func__); |
| 255 | goto vddio_fail; |
| 256 | } |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 257 | rc = regulator_enable(pdata->vddio); |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 258 | msleep(20); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 259 | if (rc) { |
| 260 | pr_err("enable failed for vddio, rc=%d %s\n", rc, __func__); |
| 261 | goto vddio_fail; |
| 262 | } |
| 263 | |
| 264 | pdata->lab = devm_regulator_get(pdata->dev, "lcdb_ldo"); |
| 265 | rc = PTR_RET(pdata->lab); |
| 266 | if (rc) { |
| 267 | pr_err("Failed to get lcdb_ldo_vreg regulator %s\n", __func__); |
| 268 | goto lab_fail; |
| 269 | } |
| 270 | rc = regulator_set_load(pdata->lab, 100000); |
| 271 | if (rc < 0) { |
| 272 | pr_err("Load Setting failed for lab %s\n", __func__); |
| 273 | goto lab_fail; |
| 274 | } |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 275 | rc = regulator_enable(pdata->lab); |
| 276 | if (rc) { |
| 277 | pr_err("enable failed for lab, rc=%d %s\n", rc, __func__); |
| 278 | goto lab_fail; |
| 279 | } |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 280 | msleep(20); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 281 | |
| 282 | pdata->ibb = devm_regulator_get(pdata->dev, "lcdb_ncp"); |
| 283 | rc = PTR_RET(pdata->ibb); |
| 284 | if (rc) { |
| 285 | pr_err("Failed to get lcdb_ncp_vreg regulator %s\n", __func__); |
| 286 | goto ibb_fail; |
| 287 | } |
| 288 | rc = regulator_set_load(pdata->ibb, 100000); |
| 289 | if (rc < 0) { |
| 290 | pr_err("Load Setting failed for ibb %s\n", __func__); |
| 291 | goto ibb_fail; |
| 292 | } |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 293 | rc = regulator_enable(pdata->ibb); |
| 294 | if (rc) { |
| 295 | pr_err("enable failed for ibb, rc=%d %s\n", rc, __func__); |
| 296 | goto ibb_fail; |
| 297 | } |
Rajesh Bharathwaj | 60ae8e4 | 2020-04-14 15:26:03 -0700 | [diff] [blame] | 298 | msleep(20); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 299 | |
| 300 | return; |
| 301 | |
| 302 | ibb_fail: |
| 303 | devm_regulator_put(pdata->ibb); |
| 304 | (void)regulator_set_load(pdata->ibb, 100); |
| 305 | (void)regulator_set_voltage(pdata->ibb, 0, 6000000); |
| 306 | |
| 307 | lab_fail: |
| 308 | (void)regulator_set_voltage(pdata->lab, 0, 6000000); |
| 309 | (void)regulator_set_load(pdata->lab, 100); |
| 310 | devm_regulator_put(pdata->lab); |
| 311 | |
| 312 | vddio_fail: |
| 313 | (void)regulator_set_load(pdata->vddio, 100); |
| 314 | (void)regulator_set_voltage(pdata->vddio, 0, 1800000); |
| 315 | devm_regulator_put(pdata->vddio); |
| 316 | } |
| 317 | |
Rajesh Bharathwaj | 9cd60e0 | 2020-03-24 18:04:14 -0700 | [diff] [blame] | 318 | static int vxr7200_probe(struct i2c_client *client, |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 319 | const struct i2c_device_id *id) |
| 320 | { |
| 321 | int rc; |
| 322 | struct vxr7200 *pdata; |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 323 | u8 reg[4] = {0x00, 0x20, 0x01, 0x60}; |
| 324 | u8 buf[4] = {0x00, 0x0, 0x0, 0x0}; |
| 325 | |
| 326 | if (!client || !client->dev.of_node) { |
| 327 | pr_err("%s invalid input\n", __func__); |
| 328 | return -EINVAL; |
| 329 | } |
| 330 | |
| 331 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { |
| 332 | pr_err("%s device doesn't support I2C\n", __func__); |
| 333 | return -ENODEV; |
| 334 | } |
| 335 | |
Rajesh Bharathwaj | 9cd60e0 | 2020-03-24 18:04:14 -0700 | [diff] [blame] | 336 | if (dsi_way) |
| 337 | return -EINVAL; |
| 338 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 339 | pdata = devm_kzalloc(&client->dev, |
| 340 | sizeof(struct vxr7200), GFP_KERNEL); |
| 341 | if (!pdata) |
| 342 | return -ENOMEM; |
| 343 | |
| 344 | pdata->gpioInit = false; |
| 345 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 346 | rc = vxr7200_parse_dt(&client->dev, pdata); |
| 347 | if (rc) { |
| 348 | pr_err("%s failed to parse device tree\n", __func__); |
| 349 | goto err_dt_parse; |
| 350 | } |
| 351 | pdata->dev = &client->dev; |
| 352 | pdata->i2c_client = client; |
| 353 | |
| 354 | vxr7200_display_pwr_enable_vregs(pdata); |
| 355 | |
| 356 | i2c_set_clientdata(client, pdata); |
| 357 | dev_set_drvdata(&client->dev, pdata); |
| 358 | |
| 359 | //vxr7200_write(pdata, 0x0A, 0x02);//Enable 4-lane DP |
| 360 | vxr7200_read(pdata, reg, buf, 4);//Enable 4-lane DP |
| 361 | |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 362 | err_dt_parse: |
| 363 | devm_kfree(&client->dev, pdata); |
| 364 | |
| 365 | return rc; |
| 366 | } |
| 367 | |
| 368 | static int vxr7200_remove(struct i2c_client *client) |
| 369 | { |
| 370 | struct vxr7200 *pdata = i2c_get_clientdata(client); |
| 371 | |
| 372 | if (pdata) |
| 373 | devm_kfree(&client->dev, pdata); |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | |
| 378 | static void vxr7200_shutdown(struct i2c_client *client) |
| 379 | { |
| 380 | dev_info(&(client->dev), "shutdown"); |
| 381 | } |
| 382 | |
| 383 | static int vxr7200_pm_freeze(struct device *dev) |
| 384 | { |
| 385 | struct i2c_client *client = to_i2c_client(dev); |
| 386 | struct vxr7200 *pdata = i2c_get_clientdata(client); |
| 387 | |
| 388 | dev_info(dev, "freeze"); |
| 389 | vxr7200_set_gpios(pdata, false); |
| 390 | return 0; |
| 391 | } |
| 392 | static int vxr7200_pm_restore(struct device *dev) |
| 393 | { |
| 394 | struct i2c_client *client = to_i2c_client(dev); |
| 395 | struct vxr7200 *pdata = i2c_get_clientdata(client); |
| 396 | |
| 397 | dev_info(dev, "restore"); |
| 398 | vxr7200_set_gpios(pdata, true); |
| 399 | return 0; |
| 400 | } |
| 401 | static int vxr7200_pm_suspend(struct device *dev) |
| 402 | { |
| 403 | struct i2c_client *client = to_i2c_client(dev); |
| 404 | struct vxr7200 *pdata = i2c_get_clientdata(client); |
| 405 | |
| 406 | dev_info(dev, "suspend"); |
| 407 | vxr7200_set_gpios(pdata, false); |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static int vxr7200_pm_resume(struct device *dev) |
| 412 | { |
| 413 | struct i2c_client *client = to_i2c_client(dev); |
| 414 | struct vxr7200 *pdata = i2c_get_clientdata(client); |
| 415 | |
| 416 | dev_info(dev, "resume"); |
| 417 | vxr7200_set_gpios(pdata, true); |
| 418 | return 0; |
| 419 | } |
| 420 | |
| 421 | static const struct dev_pm_ops vxr7200_dev_pm_ops = { |
| 422 | .suspend = vxr7200_pm_suspend, |
| 423 | .resume = vxr7200_pm_resume, |
| 424 | .freeze = vxr7200_pm_freeze, |
| 425 | .restore = vxr7200_pm_restore, |
| 426 | .thaw = vxr7200_pm_restore, |
| 427 | .poweroff = vxr7200_pm_suspend, |
| 428 | }; |
| 429 | |
| 430 | static const struct i2c_device_id vxr7200_id_table[] = { |
| 431 | {"vxr7200", 0}, |
| 432 | {} |
| 433 | }; |
| 434 | |
| 435 | static struct i2c_driver vxr7200_i2c_driver = { |
| 436 | .probe = vxr7200_probe, |
| 437 | .remove = vxr7200_remove, |
| 438 | .shutdown = vxr7200_shutdown, |
| 439 | .driver = { |
| 440 | .name = "vxr7200", |
| 441 | .owner = THIS_MODULE, |
| 442 | .pm = &vxr7200_dev_pm_ops, |
| 443 | }, |
| 444 | .id_table = vxr7200_id_table, |
| 445 | }; |
Rajesh Bharathwaj | 9cd60e0 | 2020-03-24 18:04:14 -0700 | [diff] [blame] | 446 | |
| 447 | static int __init vxr7200_init(void) |
| 448 | { |
| 449 | char *cmdline; |
| 450 | |
| 451 | cmdline = strnstr(boot_command_line, |
| 452 | "msm_drm.dsi_display0=dsi_sim_vid_display", |
| 453 | strlen(boot_command_line)); |
| 454 | if (cmdline) { |
| 455 | pr_debug("%s DSI SIM mode, going to dp init cmdline:%s\n", |
| 456 | __func__, cmdline); |
| 457 | dsi_way = false; |
| 458 | } else { |
| 459 | pr_debug("%s DSI WAY, going to dsi init cmdline:%s\n", |
| 460 | __func__, cmdline); |
| 461 | dsi_way = true; |
| 462 | } |
| 463 | |
| 464 | return 0; |
| 465 | |
| 466 | } |
| 467 | |
| 468 | device_initcall(vxr7200_init); |
Rajesh Bharathwaj | dcc7af8 | 2019-12-15 22:42:55 -0800 | [diff] [blame] | 469 | module_i2c_driver(vxr7200_i2c_driver); |
| 470 | MODULE_DEVICE_TABLE(i2c, vxr7200_id_table); |
| 471 | MODULE_DESCRIPTION("VXR7200 DP2DSI Bridge"); |