arch/arm/mach-tegra/board-stingray-touch.c

   1 /*
   2  * arch/arm/mach-tegra/board-stingray-touch.c
   3  *
   4  * Copyright (C) 2010 Motorola, Inc.
   5  * Copyright (C) 2010 Google, Inc.
   6  *
   7  * This software is licensed under the terms of the GNU General Public
   8  * License version 2, as published by the Free Software Foundation, and
   9  * may be copied, distributed, and modified under those terms.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  */
  17
  18 #include <linux/resource.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/gpio.h>
  22 #include <linux/i2c.h>
  23 #include <asm/mach-types.h>
  24 #include <mach/irqs.h>
  25 #include <mach/iomap.h>
  26 #include <mach/pinmux.h>
  27 #include <linux/qtouch_obp_ts.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/input.h>
  30
  31 #include "board-stingray.h"
  32 #include "gpio-names.h"
  33
  34 #define XMEGAT_BL_I2C_ADDR      0x35
  35 #define STINGRAY_TOUCH_RESET_N_GPIO     TEGRA_GPIO_PR4
  36 #define STINGRAY_TOUCH_INT_N_GPIO       TEGRA_GPIO_PV2
  37 #define STINGRAY_TOUCH_WAKE_N_GPIO      TEGRA_GPIO_PJ2
  38
  39 #define STINGRAY_TOUCH_INT_N_GPIO_P2    TEGRA_GPIO_PZ2
  40
  41 static int stingray_touch_reset(void)
  42 {
  43         gpio_set_value(STINGRAY_TOUCH_RESET_N_GPIO, 0);
  44         msleep(10);
  45         gpio_set_value(STINGRAY_TOUCH_RESET_N_GPIO, 1);
  46         msleep(100); /* value from moto */
  47         return 0;
  48 }
  49
  50 /* mortable M1 */
  51 struct qtouch_ts_platform_data stingray_touch_data_m1 = {
  52
  53         .flags          = (QTOUCH_USE_MULTITOUCH |
  54                            QTOUCH_CFG_BACKUPNV),
  55         .irqflags               = (IRQF_TRIGGER_LOW),
  56         .abs_min_x              = 0,
  57         .abs_max_x              = 4095,
  58         .abs_min_y              = 0,
  59         .abs_max_y              = 4095,
  60         .abs_min_p              = 0,
  61         .abs_max_p              = 255,
  62         .abs_min_w              = 0,
  63         .abs_max_w              = 15,
  64         .x_delta                = 400,
  65         .y_delta                = 250,
  66         .nv_checksum            = 0x2c30,
  67         .fuzz_x                 = 0,
  68         .fuzz_y                 = 0,
  69         .fuzz_p                 = 2,
  70         .fuzz_w                 = 2,
  71         .boot_i2c_addr  = XMEGAT_BL_I2C_ADDR,
  72         .hw_reset               = stingray_touch_reset,
  73         .key_array = {
  74                 .cfg            = NULL,
  75                 .keys           = NULL,
  76                 .num_keys       = 0,
  77         },
  78         .touch_fw_cfg = {
  79                 .fw_name = "mXT1386_08_E1.bin",
  80                 .family_id = 0xA0,
  81                 .variant_id = 0x00,
  82                 .fw_version = 0x08,
  83                 .fw_build = 0xE1,
  84                 .boot_version = 0x20,
  85                 .base_fw_version = 0x00,
  86         },
  87         .power_cfg      = {
  88                 .idle_acq_int   = 0xff,
  89                 .active_acq_int = 0xff,
  90                 .active_idle_to = 0x00,
  91         },
  92         .acquire_cfg    = {
  93                 .charge_time    = 0x0A,
  94                 .reserve1       = 0,
  95                 .touch_drift    = 0x14,
  96                 .drift_susp     = 0x14,
  97                 .touch_autocal  = 0x00,
  98                 .reserve5       = 0,
  99                 .atch_cal_suspend_time  = 0,
 100                 .atch_cal_suspend_thres = 0,
 101                 .atch_cal_force_thres = 0x10,
 102                 .atch_cal_force_ratio = 0,
 103         },
 104         .multi_touch_cfg        = {
 105                 .ctrl           = 0x83,
 106                 .x_origin       = 0,
 107                 .y_origin       = 0,
 108                 .x_size         = 0x1b,
 109                 .y_size         = 0x2a,
 110                 .aks_cfg        = 0,
 111                 .burst_len      = 0x10,
 112                 .tch_det_thr    = 45,
 113                 .tch_det_int    = 0x3,
 114                 .orient         = 7,
 115                 .mrg_to         = 0x00,
 116                 .mov_hyst_init  = 0x05,
 117                 .mov_hyst_next  = 0x02,
 118                 .mov_filter     = 0x20,
 119                 .num_touch      = 0x01,
 120                 .merge_hyst     = 0x0A,
 121                 .merge_thresh   = 0x0A,
 122                 .amp_hyst       = 0x0A,
 123                 .x_res          = 0x0FFF,
 124                 .y_res          = 0x0FFF,
 125                 .x_low_clip     = 0x00,
 126                 .x_high_clip    = 0x00,
 127                 .y_low_clip     = 0x00,
 128                 .y_high_clip    = 0x00,
 129                 .x_edge_ctrl    = 0,
 130                 .x_edge_dist    = 0,
 131                 .y_edge_ctrl    = 0,
 132                 .y_edge_dist    = 0,
 133                 .jump_limit     = 0,
 134         },
 135         .comms_config_cfg = {
 136                 .ctrl           = 0,
 137                 .command        = 0,
 138         },
 139         .noise_suppression_cfg = {
 140                 .ctrl                   = 0,
 141                 .reserve1               = 0,
 142                 .reserve2               = 0,
 143                 .reserve3               = 0,
 144                 .reserve4               = 0,
 145                 .reserve5               = 0,
 146                 .reserve6               = 0,
 147                 .reserve7               = 0,
 148                 .noise_thres            = 0,
 149                 .reserve9               = 0,
 150                 .freq_hop_scale         = 0,
 151                 .burst_freq_0           = 0,
 152                 .burst_freq_1           = 0,
 153                 .burst_freq_2           = 0,
 154                 .burst_freq_3           = 0,
 155                 .burst_freq_4           = 0,
 156                 .reserve16              = 0,
 157         },
 158         .one_touch_gesture_proc_cfg = {
 159                 .ctrl                   = 0,
 160                 .num_gestures           = 0,
 161                 .gesture_enable         = 0,
 162                 .pres_proc              = 0,
 163                 .tap_time_out           = 0,
 164                 .flick_time_out         = 0,
 165                 .drag_time_out          = 0,
 166                 .short_press_time_out   = 0,
 167                 .long_press_time_out    = 0,
 168                 .repeat_press_time_out  = 0,
 169                 .flick_threshold        = 0,
 170                 .drag_threshold         = 0,
 171                 .tap_threshold          = 0,
 172                 .throw_threshold        = 0,
 173         },
 174         .self_test_cfg = {
 175                 .ctrl                   = 0,
 176                 .command                = 0,
 177                 .high_signal_limit_0    = 0,
 178                 .low_signal_limit_0     = 0,
 179                 .high_signal_limit_1    = 0,
 180                 .low_signal_limit_1     = 0,
 181                 .high_signal_limit_2    = 0,
 182                 .low_signal_limit_2     = 0,
 183         },
 184         .two_touch_gesture_proc_cfg = {
 185                 .ctrl                   = 0,
 186                 .num_gestures           = 0,
 187                 .reserve2               = 0,
 188                 .gesture_enable         = 0,
 189                 .rotate_threshold       = 0,
 190                 .zoom_threshold         = 0,
 191         },
 192         .cte_config_cfg = {
 193                 .ctrl                   = 0,
 194                 .command                = 0,
 195                 .reserve2               = 0,
 196                 .idle_gcaf_depth        = 16,
 197                 .active_gcaf_depth      = 16,
 198                 .voltage                = 60,
 199         },
 200         .gripsuppression_t40_cfg = {
 201                 .ctrl                   = 0,
 202                 .xlo_grip               = 0,
 203                 .xhi_grip               = 0,
 204                 .ylo_grip               = 0,
 205                 .yhi_grip               = 0,
 206         },
 207         .palm_suppression_cfg = {
 208                 .ctrl                   = 0,
 209                 .small_obj_thr          = 0,
 210                 .sig_spread_thr         = 0,
 211                 .large_obj_thr          = 0,
 212                 .distance_thr           = 0,
 213                 .sup_ext_to             = 0,
 214         },
 215         .spt_digitizer_cfg = {
 216                 .ctrl                   = 0,
 217                 .hid_idlerate           = 0,
 218                 .xlength                = 0,
 219                 .ylength                = 0,
 220         },
 221
 222         .vkeys                  = {
 223                 .count          = 0,
 224                 .keys           = NULL,
 225         },
 226 };
 227
 228 /* Portable P0 */
 229 struct qtouch_ts_platform_data stingray_touch_data_p0 = {
 230
 231         .flags          = (QTOUCH_USE_MULTITOUCH |
 232                            QTOUCH_CFG_BACKUPNV),
 233         .irqflags               = (IRQF_TRIGGER_LOW),
 234         .abs_min_x              = 0,
 235         .abs_max_x              = 4095,
 236         .abs_min_y              = 255,
 237         .abs_max_y              = 4058,
 238         .abs_min_p              = 0,
 239         .abs_max_p              = 255,
 240         .abs_min_w              = 0,
 241         .abs_max_w              = 15,
 242         .x_delta                = 400,
 243         .y_delta                = 250,
 244         .nv_checksum            = 0x99469a,
 245         .fuzz_x                 = 0,
 246         .fuzz_y                 = 0,
 247         .fuzz_p                 = 2,
 248         .fuzz_w                 = 2,
 249         .boot_i2c_addr  = XMEGAT_BL_I2C_ADDR,
 250         .hw_reset               = stingray_touch_reset,
 251         .key_array = {
 252                 .cfg            = NULL,
 253                 .keys           = NULL,
 254                 .num_keys       = 0,
 255         },
 256         .touch_fw_cfg = {
 257                 .fw_name = "mXT1386_09_AA.bin",
 258                 .family_id = 0xA0,
 259                 .variant_id = 0x00,
 260                 .fw_version = 0x09,
 261                 .fw_build = 0xAA,
 262                 .boot_version = 0x20,
 263                 .base_fw_version = 0x00,
 264         },
 265         .power_cfg      = {
 266                 .idle_acq_int   = 0xff,
 267                 .active_acq_int = 0xff,
 268                 .active_idle_to = 0x00,
 269         },
 270         .acquire_cfg    = {
 271                 .charge_time    = 0x0A,
 272                 .reserve1       = 0,
 273                 .touch_drift    = 0x14,
 274                 .drift_susp     = 0x14,
 275                 .touch_autocal  = 0x00,
 276                 .reserve5       = 0,
 277                 .atch_cal_suspend_time  = 0,
 278                 .atch_cal_suspend_thres = 0,
 279                 .atch_cal_force_thres = 0x10,
 280                 .atch_cal_force_ratio = 0,
 281         },
 282         .multi_touch_cfg        = {
 283                 .ctrl           = 0x83,
 284                 .x_origin       = 0,
 285                 .y_origin       = 0,
 286                 .x_size         = 0x21,
 287                 .y_size         = 0x2a,
 288                 .aks_cfg        = 0,
 289                 .burst_len      = 0x10,
 290                 .tch_det_thr    = 45,
 291                 .tch_det_int    = 0x3,
 292                 .orient         = 1,
 293                 .mrg_to         = 0x00,
 294                 .mov_hyst_init  = 0x05,
 295                 .mov_hyst_next  = 0x02,
 296                 .mov_filter     = 0x20,
 297                 .num_touch      = 0x05,
 298                 .merge_hyst     = 0x0A,
 299                 .merge_thresh   = 0x0A,
 300                 .amp_hyst       = 0x0A,
 301                 .x_res          = 0x0FFF,
 302                 .y_res          = 0x0FFF,
 303                 .x_low_clip     = 0x00,
 304                 .x_high_clip    = 0x00,
 305                 .y_low_clip     = 0x00,
 306                 .y_high_clip    = 0x00,
 307                 .x_edge_ctrl    = 0,
 308                 .x_edge_dist    = 0,
 309                 .y_edge_ctrl    = 0,
 310                 .y_edge_dist    = 0,
 311                 .jump_limit     = 0,
 312                 .tch_thres_hyst = 0x09,
 313                 .xpitch         = 0,
 314                 .ypitch         = 0,
 315         },
 316         .comms_config_cfg = {
 317                 .ctrl           = 0,
 318                 .command        = 0,
 319         },
 320         .noise_suppression_cfg = {
 321                 .ctrl                   = 5,
 322                 .reserve1               = 0,
 323                 .reserve2               = 0,
 324                 .reserve3               = 0,
 325                 .reserve4               = 0,
 326                 .reserve5               = 0,
 327                 .reserve6               = 0,
 328                 .reserve7               = 0,
 329                 .noise_thres            = 20,
 330                 .reserve9               = 0,
 331                 .freq_hop_scale         = 0,
 332                 .burst_freq_0           = 10,
 333                 .burst_freq_1           = 15,
 334                 .burst_freq_2           = 19,
 335                 .burst_freq_3           = 25,
 336                 .burst_freq_4           = 30,
 337                 .reserve16              = 0,
 338         },
 339         .one_touch_gesture_proc_cfg = {
 340                 .ctrl                   = 0,
 341                 .num_gestures           = 0,
 342                 .gesture_enable         = 0,
 343                 .pres_proc              = 0,
 344                 .tap_time_out           = 0,
 345                 .flick_time_out         = 0,
 346                 .drag_time_out          = 0,
 347                 .short_press_time_out   = 0,
 348                 .long_press_time_out    = 0,
 349                 .repeat_press_time_out  = 0,
 350                 .flick_threshold        = 0,
 351                 .drag_threshold         = 0,
 352                 .tap_threshold          = 0,
 353                 .throw_threshold        = 0,
 354         },
 355         .self_test_cfg = {
 356                 .ctrl                   = 0,
 357                 .command                = 0,
 358                 .high_signal_limit_0    = 0,
 359                 .low_signal_limit_0     = 0,
 360                 .high_signal_limit_1    = 0,
 361                 .low_signal_limit_1     = 0,
 362                 .high_signal_limit_2    = 0,
 363                 .low_signal_limit_2     = 0,
 364         },
 365         .two_touch_gesture_proc_cfg = {
 366                 .ctrl                   = 0,
 367                 .num_gestures           = 0,
 368                 .reserve2               = 0,
 369                 .gesture_enable         = 0,
 370                 .rotate_threshold       = 0,
 371                 .zoom_threshold         = 0,
 372         },
 373         .cte_config_cfg = {
 374                 .ctrl                   = 0,
 375                 .command                = 0,
 376                 .reserve2               = 0,
 377                 .idle_gcaf_depth        = 16,
 378                 .active_gcaf_depth      = 16,
 379                 .voltage                = 60,
 380         },
 381         .gripsuppression_t40_cfg = {
 382                 .ctrl                   = 0,
 383                 .xlo_grip               = 0,
 384                 .xhi_grip               = 0,
 385                 .ylo_grip               = 0,
 386                 .yhi_grip               = 0,
 387         },
 388         .palm_suppression_cfg = {
 389                 .ctrl                   = 0,
 390                 .small_obj_thr          = 0,
 391                 .sig_spread_thr         = 0,
 392                 .large_obj_thr          = 0,
 393                 .distance_thr           = 0,
 394                 .sup_ext_to             = 0,
 395         },
 396         .spt_digitizer_cfg = {
 397                 .ctrl                   = 0,
 398                 .hid_idlerate           = 0,
 399                 .xlength                = 0,
 400                 .ylength                = 0,
 401         },
 402
 403         .vkeys                  = {
 404                 .count          = 0,
 405                 .keys           = NULL,
 406         },
 407 };
 408
 409 /* Portable P1 and later versions */
 410 struct qtouch_ts_platform_data stingray_touch_data_p1_or_later = {
 411
 412         .flags          = (QTOUCH_USE_MULTITOUCH |
 413                            QTOUCH_CFG_BACKUPNV),
 414         .irqflags               = (IRQF_TRIGGER_LOW),
 415         .abs_min_x              = 0,
 416         .abs_max_x              = 4095,
 417         .abs_min_y              = 0,
 418         .abs_max_y              = 4095,
 419         .abs_min_p              = 0,
 420         .abs_max_p              = 255,
 421         .abs_min_w              = 0,
 422         .abs_max_w              = 15,
 423         .x_delta                = 400,
 424         .y_delta                = 250,
 425         .nv_checksum            = 0x99469a,
 426         .fuzz_x                 = 0,
 427         .fuzz_y                 = 0,
 428         .fuzz_p                 = 2,
 429         .fuzz_w                 = 2,
 430         .boot_i2c_addr  = XMEGAT_BL_I2C_ADDR,
 431         .hw_reset               = stingray_touch_reset,
 432         .key_array = {
 433                 .cfg            = NULL,
 434                 .keys           = NULL,
 435                 .num_keys       = 0,
 436         },
 437         .touch_fw_cfg = {
 438                 .fw_name = "mXT1386_09_AA.bin",
 439                 .family_id = 0xA0,
 440                 .variant_id = 0x00,
 441                 .fw_version = 0x09,
 442                 .fw_build = 0xAA,
 443                 .boot_version = 0x20,
 444                 .base_fw_version = 0x00,
 445         },
 446         .power_cfg      = {
 447                 .idle_acq_int   = 0xff,
 448                 .active_acq_int = 0xff,
 449                 .active_idle_to = 0x00,
 450         },
 451         .acquire_cfg    = {
 452                 .charge_time    = 0x0A,
 453                 .reserve1       = 0,
 454                 .touch_drift    = 0x14,
 455                 .drift_susp     = 0x14,
 456                 .touch_autocal  = 0x00,
 457                 .reserve5       = 0,
 458                 .atch_cal_suspend_time  = 0,
 459                 .atch_cal_suspend_thres = 0,
 460                 .atch_cal_force_thres = 0x10,
 461                 .atch_cal_force_ratio = 0,
 462         },
 463         .multi_touch_cfg        = {
 464                 .ctrl           = 0x83,
 465                 .x_origin       = 0,
 466                 .y_origin       = 0,
 467                 .x_size         = 0x21,
 468                 .y_size         = 0x2a,
 469                 .aks_cfg        = 0,
 470                 .burst_len      = 0x10,
 471                 .tch_det_thr    = 45,
 472                 .tch_det_int    = 0x3,
 473                 .orient         = 1,
 474                 .mrg_to         = 0x00,
 475                 .mov_hyst_init  = 0x05,
 476                 .mov_hyst_next  = 0x02,
 477                 .mov_filter     = 0x20,
 478                 .num_touch      = 0x05,
 479                 .merge_hyst     = 0x0A,
 480                 .merge_thresh   = 0x0A,
 481                 .amp_hyst       = 0x0A,
 482                 .x_res          = 0x0FFF,
 483                 .y_res          = 0x0FFF,
 484                 .x_low_clip     = 0x00,
 485                 .x_high_clip    = 0x00,
 486                 .y_low_clip     = 0x00,
 487                 .y_high_clip    = 0x00,
 488                 .x_edge_ctrl    = 0,
 489                 .x_edge_dist    = 0,
 490                 .y_edge_ctrl    = 0,
 491                 .y_edge_dist    = 0,
 492                 .jump_limit     = 0,
 493                 .tch_thres_hyst = 0x09,
 494                 .xpitch         = 0,
 495                 .ypitch         = 0,
 496         },
 497         .comms_config_cfg = {
 498                 .ctrl           = 0,
 499                 .command        = 0,
 500         },
 501         .noise_suppression_cfg = {
 502                 .ctrl                   = 5,
 503                 .reserve1               = 0,
 504                 .reserve2               = 0,
 505                 .reserve3               = 0,
 506                 .reserve4               = 0,
 507                 .reserve5               = 0,
 508                 .reserve6               = 0,
 509                 .reserve7               = 0,
 510                 .noise_thres            = 20,
 511                 .reserve9               = 0,
 512                 .freq_hop_scale         = 0,
 513                 .burst_freq_0           = 10,
 514                 .burst_freq_1           = 15,
 515                 .burst_freq_2           = 19,
 516                 .burst_freq_3           = 25,
 517                 .burst_freq_4           = 30,
 518                 .reserve16              = 0,
 519         },
 520         .one_touch_gesture_proc_cfg = {
 521                 .ctrl                   = 0,
 522                 .num_gestures           = 0,
 523                 .gesture_enable         = 0,
 524                 .pres_proc              = 0,
 525                 .tap_time_out           = 0,
 526                 .flick_time_out         = 0,
 527                 .drag_time_out          = 0,
 528                 .short_press_time_out   = 0,
 529                 .long_press_time_out    = 0,
 530                 .repeat_press_time_out  = 0,
 531                 .flick_threshold        = 0,
 532                 .drag_threshold         = 0,
 533                 .tap_threshold          = 0,
 534                 .throw_threshold        = 0,
 535         },
 536         .self_test_cfg = {
 537                 .ctrl                   = 0,
 538                 .command                = 0,
 539                 .high_signal_limit_0    = 0,
 540                 .low_signal_limit_0     = 0,
 541                 .high_signal_limit_1    = 0,
 542                 .low_signal_limit_1     = 0,
 543                 .high_signal_limit_2    = 0,
 544                 .low_signal_limit_2     = 0,
 545         },
 546         .two_touch_gesture_proc_cfg = {
 547                 .ctrl                   = 0,
 548                 .num_gestures           = 0,
 549                 .reserve2               = 0,
 550                 .gesture_enable         = 0,
 551                 .rotate_threshold       = 0,
 552                 .zoom_threshold         = 0,
 553         },
 554         .cte_config_cfg = {
 555                 .ctrl                   = 0,
 556                 .command                = 0,
 557                 .reserve2               = 0,
 558                 .idle_gcaf_depth        = 16,
 559                 .active_gcaf_depth      = 16,
 560                 .voltage                = 60,
 561         },
 562         .gripsuppression_t40_cfg = {
 563                 .ctrl                   = 0,
 564                 .xlo_grip               = 0,
 565                 .xhi_grip               = 0,
 566                 .ylo_grip               = 0,
 567                 .yhi_grip               = 0,
 568                 },
 569         .palm_suppression_cfg = {
 570                 .ctrl                   = 0,
 571                 .small_obj_thr          = 0,
 572                 .sig_spread_thr         = 0,
 573                 .large_obj_thr          = 0,
 574                 .distance_thr           = 0,
 575                 .sup_ext_to             = 0,
 576         },
 577         .spt_digitizer_cfg = {
 578                 .ctrl                   = 0,
 579                 .hid_idlerate           = 0,
 580                 .xlength                = 0,
 581                 .ylength                = 0,
 582         },
 583
 584         .vkeys                  = {
 585                 .count          = 0,
 586                 .keys           = NULL,
 587         },
 588 };
 589
 590 static struct i2c_board_info __initdata stingray_i2c_bus1_touch_info[] = {
 591         {
 592                 I2C_BOARD_INFO(QTOUCH_TS_NAME, 0x5B),
 593         },
 594 };
 595
 596 int __init stingray_touch_init(void)
 597 {
 598         unsigned touch_int_gpio;
 599
 600         if (stingray_revision() == STINGRAY_REVISION_P2)
 601                 touch_int_gpio = STINGRAY_TOUCH_INT_N_GPIO_P2;
 602         else
 603                 touch_int_gpio = STINGRAY_TOUCH_INT_N_GPIO;
 604
 605         tegra_gpio_enable(touch_int_gpio);
 606         gpio_request(touch_int_gpio, "touch_irq");
 607         gpio_direction_input(touch_int_gpio);
 608
 609         tegra_gpio_enable(STINGRAY_TOUCH_WAKE_N_GPIO);
 610         gpio_request(STINGRAY_TOUCH_WAKE_N_GPIO, "touch_wake");
 611         gpio_direction_output(STINGRAY_TOUCH_WAKE_N_GPIO, 0);
 612
 613         tegra_gpio_enable(STINGRAY_TOUCH_RESET_N_GPIO);
 614         gpio_request(STINGRAY_TOUCH_RESET_N_GPIO, "touch_reset");
 615         gpio_direction_output(STINGRAY_TOUCH_RESET_N_GPIO, 1);
 616
 617         stingray_i2c_bus1_touch_info[0].irq =
 618                  TEGRA_GPIO_TO_IRQ(touch_int_gpio);
 619
 620         if ((stingray_revision() == STINGRAY_REVISION_P1) ||
 621                 (stingray_revision() == STINGRAY_REVISION_P2) ||
 622                 (stingray_revision() == STINGRAY_REVISION_P3))
 623                 stingray_i2c_bus1_touch_info[0].platform_data =
 624                                  &stingray_touch_data_p1_or_later;
 625         else if (stingray_revision() == STINGRAY_REVISION_P0)
 626                 stingray_i2c_bus1_touch_info[0].platform_data = &stingray_touch_data_p0;
 627         else
 628                 stingray_i2c_bus1_touch_info[0].platform_data = &stingray_touch_data_m1;
 629
 630         i2c_register_board_info(0, stingray_i2c_bus1_touch_info, 1);
 631
 632         return 0;
 633 }