Chintan Pandya | 250c2e5 | 2012-01-19 17:15:49 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2012, Code Aurora Forum. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/ioport.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/bootmem.h> |
| 17 | #include <linux/regulator/consumer.h> |
| 18 | #include <asm/mach-types.h> |
| 19 | #include <asm/io.h> |
| 20 | #include <mach/msm_bus_board.h> |
| 21 | #include <mach/msm_memtypes.h> |
| 22 | #include <mach/board.h> |
| 23 | #include <mach/gpio.h> |
| 24 | #include <mach/gpiomux.h> |
| 25 | #include <mach/socinfo.h> |
| 26 | #include <mach/rpc_pmapp.h> |
| 27 | #include "devices.h" |
| 28 | #include "board-msm7627a.h" |
| 29 | |
| 30 | #ifdef CONFIG_FB_MSM_TRIPLE_BUFFER |
| 31 | #define MSM_FB_SIZE 0x260000 |
| 32 | #define MSM7x25A_MSM_FB_SIZE 0xE1000 |
| 33 | #else |
| 34 | #define MSM_FB_SIZE 0x195000 |
| 35 | #define MSM7x25A_MSM_FB_SIZE 0x96000 |
| 36 | #endif |
| 37 | |
| 38 | static unsigned fb_size = MSM_FB_SIZE; |
| 39 | static int __init fb_size_setup(char *p) |
| 40 | { |
| 41 | fb_size = memparse(p, NULL); |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | early_param("fb_size", fb_size_setup); |
| 46 | |
| 47 | static struct regulator_bulk_data regs_lcdc[] = { |
| 48 | { .supply = "gp2", .min_uV = 2850000, .max_uV = 2850000 }, |
| 49 | { .supply = "msme1", .min_uV = 1800000, .max_uV = 1800000 }, |
| 50 | }; |
| 51 | static uint32_t lcdc_gpio_initialized; |
| 52 | |
| 53 | static void lcdc_toshiba_gpio_init(void) |
| 54 | { |
| 55 | int rc = 0; |
| 56 | if (!lcdc_gpio_initialized) { |
| 57 | if (gpio_request(GPIO_SPI_CLK, "spi_clk")) { |
| 58 | pr_err("failed to request gpio spi_clk\n"); |
| 59 | return; |
| 60 | } |
| 61 | if (gpio_request(GPIO_SPI_CS0_N, "spi_cs")) { |
| 62 | pr_err("failed to request gpio spi_cs0_N\n"); |
| 63 | goto fail_gpio6; |
| 64 | } |
| 65 | if (gpio_request(GPIO_SPI_MOSI, "spi_mosi")) { |
| 66 | pr_err("failed to request gpio spi_mosi\n"); |
| 67 | goto fail_gpio5; |
| 68 | } |
| 69 | if (gpio_request(GPIO_SPI_MISO, "spi_miso")) { |
| 70 | pr_err("failed to request gpio spi_miso\n"); |
| 71 | goto fail_gpio4; |
| 72 | } |
| 73 | if (gpio_request(GPIO_DISPLAY_PWR_EN, "gpio_disp_pwr")) { |
| 74 | pr_err("failed to request gpio_disp_pwr\n"); |
| 75 | goto fail_gpio3; |
| 76 | } |
| 77 | if (gpio_request(GPIO_BACKLIGHT_EN, "gpio_bkl_en")) { |
| 78 | pr_err("failed to request gpio_bkl_en\n"); |
| 79 | goto fail_gpio2; |
| 80 | } |
| 81 | pmapp_disp_backlight_init(); |
| 82 | |
| 83 | rc = regulator_bulk_get(NULL, ARRAY_SIZE(regs_lcdc), |
| 84 | regs_lcdc); |
| 85 | if (rc) { |
| 86 | pr_err("%s: could not get regulators: %d\n", |
| 87 | __func__, rc); |
| 88 | goto fail_gpio1; |
| 89 | } |
| 90 | |
| 91 | rc = regulator_bulk_set_voltage(ARRAY_SIZE(regs_lcdc), |
| 92 | regs_lcdc); |
| 93 | if (rc) { |
| 94 | pr_err("%s: could not set voltages: %d\n", |
| 95 | __func__, rc); |
| 96 | goto fail_vreg; |
| 97 | } |
| 98 | lcdc_gpio_initialized = 1; |
| 99 | } |
| 100 | return; |
| 101 | fail_vreg: |
| 102 | regulator_bulk_free(ARRAY_SIZE(regs_lcdc), regs_lcdc); |
| 103 | fail_gpio1: |
| 104 | gpio_free(GPIO_BACKLIGHT_EN); |
| 105 | fail_gpio2: |
| 106 | gpio_free(GPIO_DISPLAY_PWR_EN); |
| 107 | fail_gpio3: |
| 108 | gpio_free(GPIO_SPI_MISO); |
| 109 | fail_gpio4: |
| 110 | gpio_free(GPIO_SPI_MOSI); |
| 111 | fail_gpio5: |
| 112 | gpio_free(GPIO_SPI_CS0_N); |
| 113 | fail_gpio6: |
| 114 | gpio_free(GPIO_SPI_CLK); |
| 115 | lcdc_gpio_initialized = 0; |
| 116 | } |
| 117 | |
| 118 | static uint32_t lcdc_gpio_table[] = { |
| 119 | GPIO_SPI_CLK, |
| 120 | GPIO_SPI_CS0_N, |
| 121 | GPIO_SPI_MOSI, |
| 122 | GPIO_DISPLAY_PWR_EN, |
| 123 | GPIO_BACKLIGHT_EN, |
| 124 | GPIO_SPI_MISO, |
| 125 | }; |
| 126 | |
| 127 | static void config_lcdc_gpio_table(uint32_t *table, int len, unsigned enable) |
| 128 | { |
| 129 | int n; |
| 130 | |
| 131 | if (lcdc_gpio_initialized) { |
| 132 | /* All are IO Expander GPIOs */ |
| 133 | for (n = 0; n < (len - 1); n++) |
| 134 | gpio_direction_output(table[n], 1); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | static void lcdc_toshiba_config_gpios(int enable) |
| 139 | { |
| 140 | config_lcdc_gpio_table(lcdc_gpio_table, |
| 141 | ARRAY_SIZE(lcdc_gpio_table), enable); |
| 142 | } |
| 143 | |
| 144 | static int msm_fb_lcdc_power_save(int on) |
| 145 | { |
| 146 | int rc = 0; |
| 147 | /* Doing the init of the LCDC GPIOs very late as they are from |
| 148 | an I2C-controlled IO Expander */ |
| 149 | lcdc_toshiba_gpio_init(); |
| 150 | |
| 151 | if (lcdc_gpio_initialized) { |
| 152 | gpio_set_value_cansleep(GPIO_DISPLAY_PWR_EN, on); |
| 153 | gpio_set_value_cansleep(GPIO_BACKLIGHT_EN, on); |
| 154 | |
| 155 | rc = on ? regulator_bulk_enable( |
| 156 | ARRAY_SIZE(regs_lcdc), regs_lcdc) : |
| 157 | regulator_bulk_disable( |
| 158 | ARRAY_SIZE(regs_lcdc), regs_lcdc); |
| 159 | |
| 160 | if (rc) |
| 161 | pr_err("%s: could not %sable regulators: %d\n", |
| 162 | __func__, on ? "en" : "dis", rc); |
| 163 | } |
| 164 | |
| 165 | return rc; |
| 166 | } |
| 167 | |
| 168 | static int lcdc_toshiba_set_bl(int level) |
| 169 | { |
| 170 | int ret; |
| 171 | |
| 172 | ret = pmapp_disp_backlight_set_brightness(level); |
| 173 | if (ret) |
| 174 | pr_err("%s: can't set lcd backlight!\n", __func__); |
| 175 | |
| 176 | return ret; |
| 177 | } |
| 178 | |
| 179 | static struct lcdc_platform_data lcdc_pdata = { |
| 180 | .lcdc_gpio_config = NULL, |
| 181 | .lcdc_power_save = msm_fb_lcdc_power_save, |
| 182 | }; |
| 183 | |
| 184 | static int lcd_panel_spi_gpio_num[] = { |
| 185 | GPIO_SPI_MOSI, /* spi_sdi */ |
| 186 | GPIO_SPI_MISO, /* spi_sdoi */ |
| 187 | GPIO_SPI_CLK, /* spi_clk */ |
| 188 | GPIO_SPI_CS0_N, /* spi_cs */ |
| 189 | }; |
| 190 | |
| 191 | static struct msm_panel_common_pdata lcdc_toshiba_panel_data = { |
| 192 | .panel_config_gpio = lcdc_toshiba_config_gpios, |
| 193 | .pmic_backlight = lcdc_toshiba_set_bl, |
| 194 | .gpio_num = lcd_panel_spi_gpio_num, |
| 195 | }; |
| 196 | |
| 197 | static struct platform_device lcdc_toshiba_panel_device = { |
| 198 | .name = "lcdc_toshiba_fwvga_pt", |
| 199 | .id = 0, |
| 200 | .dev = { |
| 201 | .platform_data = &lcdc_toshiba_panel_data, |
| 202 | } |
| 203 | }; |
| 204 | |
| 205 | static struct resource msm_fb_resources[] = { |
| 206 | { |
| 207 | .flags = IORESOURCE_DMA, |
| 208 | } |
| 209 | }; |
| 210 | |
| 211 | #define PANEL_NAME_MAX_LEN 30 |
| 212 | #define LCDC_TOSHIBA_FWVGA_PANEL_NAME "lcdc_toshiba_fwvga_pt" |
| 213 | #define MIPI_CMD_RENESAS_FWVGA_PANEL_NAME "mipi_cmd_renesas_fwvga" |
| 214 | |
| 215 | static int msm_fb_detect_panel(const char *name) |
| 216 | { |
| 217 | int ret = -ENODEV; |
| 218 | |
| 219 | if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()) { |
| 220 | if (!strncmp(name, "lcdc_toshiba_fwvga_pt", 21) || |
| 221 | !strncmp(name, "mipi_cmd_renesas_fwvga", 22)) |
| 222 | ret = 0; |
| 223 | } else if (machine_is_msm7x27a_ffa() || machine_is_msm7625a_ffa()) { |
| 224 | if (!strncmp(name, "mipi_cmd_renesas_fwvga", 22)) |
| 225 | ret = 0; |
| 226 | } else if (machine_is_msm7627a_qrd1()) { |
| 227 | if (!strncmp(name, "mipi_video_truly_wvga", 21)) |
| 228 | ret = 0; |
| 229 | } |
| 230 | |
| 231 | #if !defined(CONFIG_FB_MSM_LCDC_AUTO_DETECT) && \ |
| 232 | !defined(CONFIG_FB_MSM_MIPI_PANEL_AUTO_DETECT) && \ |
| 233 | !defined(CONFIG_FB_MSM_LCDC_MIPI_PANEL_AUTO_DETECT) |
| 234 | if (machine_is_msm7x27a_surf() || |
| 235 | machine_is_msm7625a_surf()) { |
| 236 | if (!strncmp(name, LCDC_TOSHIBA_FWVGA_PANEL_NAME, |
| 237 | strnlen(LCDC_TOSHIBA_FWVGA_PANEL_NAME, |
| 238 | PANEL_NAME_MAX_LEN))) |
| 239 | return 0; |
| 240 | } |
| 241 | #endif |
| 242 | |
| 243 | return ret; |
| 244 | } |
| 245 | |
| 246 | static int mipi_truly_set_bl(int on) |
| 247 | { |
| 248 | gpio_set_value_cansleep(QRD_GPIO_BACKLIGHT_EN, !!on); |
| 249 | |
| 250 | return 1; |
| 251 | } |
| 252 | |
| 253 | static struct msm_fb_platform_data msm_fb_pdata = { |
| 254 | .detect_client = msm_fb_detect_panel, |
| 255 | }; |
| 256 | |
| 257 | static struct platform_device msm_fb_device = { |
| 258 | .name = "msm_fb", |
| 259 | .id = 0, |
| 260 | .num_resources = ARRAY_SIZE(msm_fb_resources), |
| 261 | .resource = msm_fb_resources, |
| 262 | .dev = { |
| 263 | .platform_data = &msm_fb_pdata, |
| 264 | } |
| 265 | }; |
| 266 | |
| 267 | #ifdef CONFIG_FB_MSM_MIPI_DSI |
| 268 | static int mipi_renesas_set_bl(int level) |
| 269 | { |
| 270 | int ret; |
| 271 | |
| 272 | ret = pmapp_disp_backlight_set_brightness(level); |
| 273 | |
| 274 | if (ret) |
| 275 | pr_err("%s: can't set lcd backlight!\n", __func__); |
| 276 | |
| 277 | return ret; |
| 278 | } |
| 279 | |
| 280 | static struct msm_panel_common_pdata mipi_renesas_pdata = { |
| 281 | .pmic_backlight = mipi_renesas_set_bl, |
| 282 | }; |
| 283 | |
| 284 | |
| 285 | static struct platform_device mipi_dsi_renesas_panel_device = { |
| 286 | .name = "mipi_renesas", |
| 287 | .id = 0, |
| 288 | .dev = { |
| 289 | .platform_data = &mipi_renesas_pdata, |
| 290 | } |
| 291 | }; |
| 292 | #endif |
| 293 | |
| 294 | static struct msm_panel_common_pdata mipi_truly_pdata = { |
| 295 | .pmic_backlight = mipi_truly_set_bl, |
| 296 | }; |
| 297 | |
| 298 | static struct platform_device mipi_dsi_truly_panel_device = { |
| 299 | .name = "mipi_truly", |
| 300 | .id = 0, |
| 301 | .dev = { |
| 302 | .platform_data = &mipi_truly_pdata, |
| 303 | } |
| 304 | }; |
| 305 | |
| 306 | static struct platform_device *msm_fb_devices[] __initdata = { |
| 307 | &msm_fb_device, |
| 308 | &lcdc_toshiba_panel_device, |
| 309 | #ifdef CONFIG_FB_MSM_MIPI_DSI |
| 310 | &mipi_dsi_renesas_panel_device, |
| 311 | #endif |
| 312 | }; |
| 313 | |
| 314 | static struct platform_device *qrd_fb_devices[] __initdata = { |
| 315 | &msm_fb_device, |
| 316 | &mipi_dsi_truly_panel_device, |
| 317 | }; |
| 318 | |
Taniya Das | c868a2e | 2012-01-03 10:18:47 +0530 | [diff] [blame^] | 319 | static struct platform_device *evb_fb_devices[] __initdata = { |
| 320 | |
| 321 | }; |
| 322 | |
Chintan Pandya | 250c2e5 | 2012-01-19 17:15:49 +0530 | [diff] [blame] | 323 | void __init msm_msm7627a_allocate_memory_regions(void) |
| 324 | { |
| 325 | void *addr; |
| 326 | unsigned long fb_size; |
| 327 | |
| 328 | if (machine_is_msm7625a_surf() || machine_is_msm7625a_ffa()) |
| 329 | fb_size = MSM7x25A_MSM_FB_SIZE; |
| 330 | else |
| 331 | fb_size = MSM_FB_SIZE; |
| 332 | addr = alloc_bootmem_align(fb_size, 0x1000); |
| 333 | msm_fb_resources[0].start = __pa(addr); |
| 334 | msm_fb_resources[0].end = msm_fb_resources[0].start + fb_size - 1; |
| 335 | pr_info("allocating %lu bytes at %p (%lx physical) for fb\n", fb_size, |
| 336 | addr, __pa(addr)); |
| 337 | } |
| 338 | |
| 339 | static struct msm_panel_common_pdata mdp_pdata = { |
| 340 | .gpio = 97, |
| 341 | .mdp_rev = MDP_REV_303, |
| 342 | }; |
| 343 | |
| 344 | #define GPIO_LCDC_BRDG_PD 128 |
| 345 | #define GPIO_LCDC_BRDG_RESET_N 129 |
| 346 | #define GPIO_LCD_DSI_SEL 125 |
| 347 | #define LCDC_RESET_PHYS 0x90008014 |
| 348 | |
| 349 | static void __iomem *lcdc_reset_ptr; |
| 350 | |
| 351 | static unsigned mipi_dsi_gpio[] = { |
| 352 | GPIO_CFG(GPIO_LCDC_BRDG_RESET_N, 0, GPIO_CFG_OUTPUT, |
| 353 | GPIO_CFG_NO_PULL, GPIO_CFG_2MA), /* LCDC_BRDG_RESET_N */ |
| 354 | GPIO_CFG(GPIO_LCDC_BRDG_PD, 0, GPIO_CFG_OUTPUT, |
| 355 | GPIO_CFG_NO_PULL, GPIO_CFG_2MA), /* LCDC_BRDG_PD */ |
| 356 | }; |
| 357 | |
| 358 | static unsigned lcd_dsi_sel_gpio[] = { |
| 359 | GPIO_CFG(GPIO_LCD_DSI_SEL, 0, GPIO_CFG_OUTPUT, GPIO_CFG_PULL_UP, |
| 360 | GPIO_CFG_2MA), |
| 361 | }; |
| 362 | |
| 363 | enum { |
| 364 | DSI_SINGLE_LANE = 1, |
| 365 | DSI_TWO_LANES, |
| 366 | }; |
| 367 | |
| 368 | static int msm_fb_get_lane_config(void) |
| 369 | { |
| 370 | /* For MSM7627A SURF/FFA and QRD */ |
| 371 | int rc = DSI_TWO_LANES; |
| 372 | if (machine_is_msm7625a_surf() || machine_is_msm7625a_ffa()) { |
| 373 | rc = DSI_SINGLE_LANE; |
| 374 | pr_info("DSI_SINGLE_LANES\n"); |
| 375 | } else { |
| 376 | pr_info("DSI_TWO_LANES\n"); |
| 377 | } |
| 378 | return rc; |
| 379 | } |
| 380 | |
| 381 | static int msm_fb_dsi_client_msm_reset(void) |
| 382 | { |
| 383 | int rc = 0; |
| 384 | |
| 385 | rc = gpio_request(GPIO_LCDC_BRDG_RESET_N, "lcdc_brdg_reset_n"); |
| 386 | if (rc < 0) { |
| 387 | pr_err("failed to request lcd brdg reset_n\n"); |
| 388 | return rc; |
| 389 | } |
| 390 | |
| 391 | rc = gpio_request(GPIO_LCDC_BRDG_PD, "lcdc_brdg_pd"); |
| 392 | if (rc < 0) { |
| 393 | pr_err("failed to request lcd brdg pd\n"); |
| 394 | return rc; |
| 395 | } |
| 396 | |
| 397 | rc = gpio_tlmm_config(mipi_dsi_gpio[0], GPIO_CFG_ENABLE); |
| 398 | if (rc) { |
| 399 | pr_err("Failed to enable LCDC Bridge reset enable\n"); |
| 400 | goto gpio_error; |
| 401 | } |
| 402 | |
| 403 | rc = gpio_tlmm_config(mipi_dsi_gpio[1], GPIO_CFG_ENABLE); |
| 404 | if (rc) { |
| 405 | pr_err("Failed to enable LCDC Bridge pd enable\n"); |
| 406 | goto gpio_error2; |
| 407 | } |
| 408 | |
| 409 | rc = gpio_direction_output(GPIO_LCDC_BRDG_RESET_N, 1); |
| 410 | rc |= gpio_direction_output(GPIO_LCDC_BRDG_PD, 1); |
| 411 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_PD, 0); |
| 412 | |
| 413 | if (!rc) { |
| 414 | if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()) { |
| 415 | lcdc_reset_ptr = ioremap_nocache(LCDC_RESET_PHYS, |
| 416 | sizeof(uint32_t)); |
| 417 | |
| 418 | if (!lcdc_reset_ptr) |
| 419 | return 0; |
| 420 | } |
| 421 | return rc; |
| 422 | } else { |
| 423 | goto gpio_error; |
| 424 | } |
| 425 | |
| 426 | gpio_error2: |
| 427 | pr_err("Failed GPIO bridge pd\n"); |
| 428 | gpio_free(GPIO_LCDC_BRDG_PD); |
| 429 | |
| 430 | gpio_error: |
| 431 | pr_err("Failed GPIO bridge reset\n"); |
| 432 | gpio_free(GPIO_LCDC_BRDG_RESET_N); |
| 433 | return rc; |
| 434 | } |
| 435 | |
| 436 | static int mipi_truly_sel_mode(int video_mode) |
| 437 | { |
| 438 | int rc = 0; |
| 439 | |
| 440 | rc = gpio_request(GPIO_LCD_DSI_SEL, "lcd_dsi_sel"); |
| 441 | if (rc < 0) |
| 442 | goto gpio_error; |
| 443 | |
| 444 | rc = gpio_tlmm_config(lcd_dsi_sel_gpio[0], GPIO_CFG_ENABLE); |
| 445 | if (rc) |
| 446 | goto gpio_error; |
| 447 | |
| 448 | rc = gpio_direction_output(GPIO_LCD_DSI_SEL, 1); |
| 449 | if (!rc) { |
| 450 | gpio_set_value_cansleep(GPIO_LCD_DSI_SEL, video_mode); |
| 451 | return rc; |
| 452 | } else { |
| 453 | goto gpio_error; |
| 454 | } |
| 455 | |
| 456 | gpio_error: |
| 457 | pr_err("mipi_truly_sel_mode failed\n"); |
| 458 | gpio_free(GPIO_LCD_DSI_SEL); |
| 459 | return rc; |
| 460 | } |
| 461 | |
| 462 | static int msm_fb_dsi_client_qrd1_reset(void) |
| 463 | { |
| 464 | int rc = 0; |
| 465 | |
| 466 | rc = gpio_request(GPIO_LCDC_BRDG_RESET_N, "lcdc_brdg_reset_n"); |
| 467 | if (rc < 0) { |
| 468 | pr_err("failed to request lcd brdg reset_n\n"); |
| 469 | return rc; |
| 470 | } |
| 471 | |
| 472 | rc = gpio_tlmm_config(mipi_dsi_gpio[0], GPIO_CFG_ENABLE); |
| 473 | if (rc < 0) { |
| 474 | pr_err("Failed to enable LCDC Bridge reset enable\n"); |
| 475 | return rc; |
| 476 | } |
| 477 | |
| 478 | rc = gpio_direction_output(GPIO_LCDC_BRDG_RESET_N, 1); |
| 479 | if (rc < 0) { |
| 480 | pr_err("Failed GPIO bridge pd\n"); |
| 481 | gpio_free(GPIO_LCDC_BRDG_RESET_N); |
| 482 | return rc; |
| 483 | } |
| 484 | |
| 485 | mipi_truly_sel_mode(1); |
| 486 | |
| 487 | return rc; |
| 488 | } |
| 489 | |
| 490 | static int msm_fb_dsi_client_reset(void) |
| 491 | { |
| 492 | int rc = 0; |
| 493 | |
| 494 | if (machine_is_msm7627a_qrd1()) |
| 495 | rc = msm_fb_dsi_client_qrd1_reset(); |
| 496 | else |
| 497 | rc = msm_fb_dsi_client_msm_reset(); |
| 498 | |
| 499 | return rc; |
| 500 | |
| 501 | } |
| 502 | |
| 503 | static struct regulator_bulk_data regs_dsi[] = { |
| 504 | { .supply = "gp2", .min_uV = 2850000, .max_uV = 2850000 }, |
| 505 | { .supply = "msme1", .min_uV = 1800000, .max_uV = 1800000 }, |
| 506 | }; |
| 507 | |
| 508 | static int dsi_gpio_initialized; |
| 509 | |
| 510 | static int mipi_dsi_panel_msm_power(int on) |
| 511 | { |
| 512 | int rc = 0; |
| 513 | uint32_t lcdc_reset_cfg; |
| 514 | |
| 515 | /* I2C-controlled GPIO Expander -init of the GPIOs very late */ |
| 516 | if (unlikely(!dsi_gpio_initialized)) { |
| 517 | pmapp_disp_backlight_init(); |
| 518 | |
| 519 | rc = gpio_request(GPIO_DISPLAY_PWR_EN, "gpio_disp_pwr"); |
| 520 | if (rc < 0) { |
| 521 | pr_err("failed to request gpio_disp_pwr\n"); |
| 522 | return rc; |
| 523 | } |
| 524 | |
| 525 | if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()) { |
| 526 | rc = gpio_direction_output(GPIO_DISPLAY_PWR_EN, 1); |
| 527 | if (rc < 0) { |
| 528 | pr_err("failed to enable display pwr\n"); |
| 529 | goto fail_gpio1; |
| 530 | } |
| 531 | |
| 532 | rc = gpio_request(GPIO_BACKLIGHT_EN, "gpio_bkl_en"); |
| 533 | if (rc < 0) { |
| 534 | pr_err("failed to request gpio_bkl_en\n"); |
| 535 | goto fail_gpio1; |
| 536 | } |
| 537 | |
| 538 | rc = gpio_direction_output(GPIO_BACKLIGHT_EN, 1); |
| 539 | if (rc < 0) { |
| 540 | pr_err("failed to enable backlight\n"); |
| 541 | goto fail_gpio2; |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | rc = regulator_bulk_get(NULL, ARRAY_SIZE(regs_dsi), regs_dsi); |
| 546 | if (rc) { |
| 547 | pr_err("%s: could not get regulators: %d\n", |
| 548 | __func__, rc); |
| 549 | goto fail_gpio2; |
| 550 | } |
| 551 | |
| 552 | rc = regulator_bulk_set_voltage(ARRAY_SIZE(regs_dsi), |
| 553 | regs_dsi); |
| 554 | if (rc) { |
| 555 | pr_err("%s: could not set voltages: %d\n", |
| 556 | __func__, rc); |
| 557 | goto fail_vreg; |
| 558 | } |
| 559 | if (pmapp_disp_backlight_set_brightness(100)) |
| 560 | pr_err("backlight set brightness failed\n"); |
| 561 | |
| 562 | dsi_gpio_initialized = 1; |
| 563 | } |
| 564 | if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()) { |
| 565 | gpio_set_value_cansleep(GPIO_DISPLAY_PWR_EN, on); |
| 566 | gpio_set_value_cansleep(GPIO_BACKLIGHT_EN, on); |
| 567 | } else if (machine_is_msm7x27a_ffa() || |
| 568 | machine_is_msm7625a_ffa()) { |
| 569 | if (on) { |
| 570 | /* This line drives an active low pin on FFA */ |
| 571 | rc = gpio_direction_output(GPIO_DISPLAY_PWR_EN, !on); |
| 572 | if (rc < 0) |
| 573 | pr_err("failed to set direction for " |
| 574 | "display pwr\n"); |
| 575 | } else { |
| 576 | gpio_set_value_cansleep(GPIO_DISPLAY_PWR_EN, !on); |
| 577 | rc = gpio_direction_input(GPIO_DISPLAY_PWR_EN); |
| 578 | if (rc < 0) |
| 579 | pr_err("failed to set direction for " |
| 580 | "display pwr\n"); |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | if (on) { |
| 585 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_PD, 0); |
| 586 | |
| 587 | if (machine_is_msm7x27a_surf() || |
| 588 | machine_is_msm7625a_surf()) { |
| 589 | lcdc_reset_cfg = readl_relaxed(lcdc_reset_ptr); |
| 590 | rmb(); |
| 591 | lcdc_reset_cfg &= ~1; |
| 592 | |
| 593 | writel_relaxed(lcdc_reset_cfg, lcdc_reset_ptr); |
| 594 | msleep(20); |
| 595 | wmb(); |
| 596 | lcdc_reset_cfg |= 1; |
| 597 | writel_relaxed(lcdc_reset_cfg, lcdc_reset_ptr); |
| 598 | } else { |
| 599 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_RESET_N, 0); |
| 600 | msleep(20); |
| 601 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_RESET_N, 1); |
| 602 | } |
| 603 | } else { |
| 604 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_PD, 1); |
| 605 | |
| 606 | if (pmapp_disp_backlight_set_brightness(0)) |
| 607 | pr_err("backlight set brightness failed\n"); |
| 608 | } |
| 609 | |
| 610 | rc = on ? regulator_bulk_enable(ARRAY_SIZE(regs_dsi), regs_dsi) : |
| 611 | regulator_bulk_disable(ARRAY_SIZE(regs_dsi), regs_dsi); |
| 612 | |
| 613 | if (rc) |
| 614 | pr_err("%s: could not %sable regulators: %d\n", |
| 615 | __func__, on ? "en" : "dis", rc); |
| 616 | |
| 617 | return rc; |
| 618 | fail_vreg: |
| 619 | regulator_bulk_free(ARRAY_SIZE(regs_dsi), regs_dsi); |
| 620 | fail_gpio2: |
| 621 | gpio_free(GPIO_BACKLIGHT_EN); |
| 622 | fail_gpio1: |
| 623 | gpio_free(GPIO_DISPLAY_PWR_EN); |
| 624 | dsi_gpio_initialized = 0; |
| 625 | return rc; |
| 626 | } |
| 627 | |
| 628 | static int mipi_dsi_panel_qrd1_power(int on) |
| 629 | { |
| 630 | int rc = 0; |
| 631 | |
| 632 | if (!dsi_gpio_initialized) { |
| 633 | rc = gpio_request(QRD_GPIO_BACKLIGHT_EN, "gpio_bkl_en"); |
| 634 | if (rc < 0) |
| 635 | return rc; |
| 636 | |
| 637 | rc = gpio_tlmm_config(GPIO_CFG(QRD_GPIO_BACKLIGHT_EN, 0, |
| 638 | GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA), |
| 639 | GPIO_CFG_ENABLE); |
| 640 | if (rc < 0) { |
| 641 | pr_err("failed GPIO_BACKLIGHT_EN tlmm config\n"); |
| 642 | return rc; |
| 643 | } |
| 644 | |
| 645 | rc = gpio_direction_output(QRD_GPIO_BACKLIGHT_EN, 1); |
| 646 | if (rc < 0) { |
| 647 | pr_err("failed to enable backlight\n"); |
| 648 | gpio_free(QRD_GPIO_BACKLIGHT_EN); |
| 649 | return rc; |
| 650 | } |
| 651 | dsi_gpio_initialized = 1; |
| 652 | } |
| 653 | |
| 654 | gpio_set_value_cansleep(QRD_GPIO_BACKLIGHT_EN, !!on); |
| 655 | |
| 656 | if (!on) { |
| 657 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_RESET_N, 1); |
| 658 | msleep(20); |
| 659 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_RESET_N, 0); |
| 660 | msleep(20); |
| 661 | gpio_set_value_cansleep(GPIO_LCDC_BRDG_RESET_N, 1); |
| 662 | |
| 663 | } |
| 664 | |
| 665 | return rc; |
| 666 | } |
| 667 | |
| 668 | static int mipi_dsi_panel_power(int on) |
| 669 | { |
| 670 | int rc = 0; |
| 671 | |
| 672 | if (machine_is_msm7627a_qrd1()) |
| 673 | rc = mipi_dsi_panel_qrd1_power(on); |
| 674 | else |
| 675 | rc = mipi_dsi_panel_msm_power(on); |
| 676 | return rc; |
| 677 | } |
| 678 | |
| 679 | #define MDP_303_VSYNC_GPIO 97 |
| 680 | |
| 681 | #ifdef CONFIG_FB_MSM_MDP303 |
| 682 | static struct mipi_dsi_platform_data mipi_dsi_pdata = { |
| 683 | .vsync_gpio = MDP_303_VSYNC_GPIO, |
| 684 | .dsi_power_save = mipi_dsi_panel_power, |
| 685 | .dsi_client_reset = msm_fb_dsi_client_reset, |
| 686 | .get_lane_config = msm_fb_get_lane_config, |
| 687 | }; |
| 688 | #endif |
| 689 | |
| 690 | void __init msm_fb_add_devices(void) |
| 691 | { |
| 692 | if (machine_is_msm7627a_qrd1()) |
| 693 | platform_add_devices(qrd_fb_devices, |
| 694 | ARRAY_SIZE(qrd_fb_devices)); |
Taniya Das | c868a2e | 2012-01-03 10:18:47 +0530 | [diff] [blame^] | 695 | else if (machine_is_msm7627a_evb()) |
| 696 | platform_add_devices(evb_fb_devices, |
| 697 | ARRAY_SIZE(evb_fb_devices)); |
Chintan Pandya | 250c2e5 | 2012-01-19 17:15:49 +0530 | [diff] [blame] | 698 | else |
| 699 | platform_add_devices(msm_fb_devices, |
| 700 | ARRAY_SIZE(msm_fb_devices)); |
| 701 | |
| 702 | msm_fb_register_device("mdp", &mdp_pdata); |
| 703 | if (machine_is_msm7625a_surf() || machine_is_msm7x27a_surf()) |
| 704 | msm_fb_register_device("lcdc", &lcdc_pdata); |
| 705 | #ifdef CONFIG_FB_MSM_MDP303 |
| 706 | msm_fb_register_device("mipi_dsi", &mipi_dsi_pdata); |
| 707 | #endif |
| 708 | } |