1cc697d38SMisael Lopez Cruz /* 2cc697d38SMisael Lopez Cruz * twl6040-vibra.c - TWL6040 Vibrator driver 3cc697d38SMisael Lopez Cruz * 4cc697d38SMisael Lopez Cruz * Author: Jorge Eduardo Candelaria <jorge.candelaria@ti.com> 5cc697d38SMisael Lopez Cruz * Author: Misael Lopez Cruz <misael.lopez@ti.com> 6cc697d38SMisael Lopez Cruz * 7cc697d38SMisael Lopez Cruz * Copyright: (C) 2011 Texas Instruments, Inc. 8cc697d38SMisael Lopez Cruz * 9cc697d38SMisael Lopez Cruz * Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com> 10cc697d38SMisael Lopez Cruz * Felipe Balbi <felipe.balbi@nokia.com> 11cc697d38SMisael Lopez Cruz * Jari Vanhala <ext-javi.vanhala@nokia.com> 12cc697d38SMisael Lopez Cruz * 13cc697d38SMisael Lopez Cruz * This program is free software; you can redistribute it and/or modify 14cc697d38SMisael Lopez Cruz * it under the terms of the GNU General Public License version 2 as 15cc697d38SMisael Lopez Cruz * published by the Free Software Foundation. 16cc697d38SMisael Lopez Cruz * 17cc697d38SMisael Lopez Cruz * This program is distributed in the hope that it will be useful, but 18cc697d38SMisael Lopez Cruz * WITHOUT ANY WARRANTY; without even the implied warranty of 19cc697d38SMisael Lopez Cruz * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20cc697d38SMisael Lopez Cruz * General Public License for more details. 21cc697d38SMisael Lopez Cruz * 22cc697d38SMisael Lopez Cruz * You should have received a copy of the GNU General Public License 23cc697d38SMisael Lopez Cruz * along with this program; if not, write to the Free Software 24cc697d38SMisael Lopez Cruz * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 25cc697d38SMisael Lopez Cruz * 02110-1301 USA 26cc697d38SMisael Lopez Cruz * 27cc697d38SMisael Lopez Cruz */ 28cc697d38SMisael Lopez Cruz #include <linux/module.h> 29cc697d38SMisael Lopez Cruz #include <linux/platform_device.h> 30cc697d38SMisael Lopez Cruz #include <linux/workqueue.h> 31cc697d38SMisael Lopez Cruz #include <linux/i2c/twl.h> 32cc697d38SMisael Lopez Cruz #include <linux/mfd/twl6040.h> 33cc697d38SMisael Lopez Cruz #include <linux/slab.h> 34cc697d38SMisael Lopez Cruz #include <linux/delay.h> 35cc697d38SMisael Lopez Cruz #include <linux/regulator/consumer.h> 36cc697d38SMisael Lopez Cruz 37cc697d38SMisael Lopez Cruz #define EFFECT_DIR_180_DEG 0x8000 38cc697d38SMisael Lopez Cruz 39cc697d38SMisael Lopez Cruz /* Recommended modulation index 85% */ 40cc697d38SMisael Lopez Cruz #define TWL6040_VIBRA_MOD 85 41cc697d38SMisael Lopez Cruz 42cc697d38SMisael Lopez Cruz #define TWL6040_NUM_SUPPLIES 2 43cc697d38SMisael Lopez Cruz 44cc697d38SMisael Lopez Cruz struct vibra_info { 45cc697d38SMisael Lopez Cruz struct device *dev; 46cc697d38SMisael Lopez Cruz struct input_dev *input_dev; 47cc697d38SMisael Lopez Cruz struct workqueue_struct *workqueue; 48cc697d38SMisael Lopez Cruz struct work_struct play_work; 49cc697d38SMisael Lopez Cruz struct mutex mutex; 50625cbe46SPeter Ujfalusi int irq; 51cc697d38SMisael Lopez Cruz 52cc697d38SMisael Lopez Cruz bool enabled; 53cc697d38SMisael Lopez Cruz int weak_speed; 54cc697d38SMisael Lopez Cruz int strong_speed; 55cc697d38SMisael Lopez Cruz int direction; 56cc697d38SMisael Lopez Cruz 57cc697d38SMisael Lopez Cruz unsigned int vibldrv_res; 58cc697d38SMisael Lopez Cruz unsigned int vibrdrv_res; 59cc697d38SMisael Lopez Cruz unsigned int viblmotor_res; 60cc697d38SMisael Lopez Cruz unsigned int vibrmotor_res; 61cc697d38SMisael Lopez Cruz 62cc697d38SMisael Lopez Cruz struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES]; 63cc697d38SMisael Lopez Cruz 64cc697d38SMisael Lopez Cruz struct twl6040 *twl6040; 65cc697d38SMisael Lopez Cruz }; 66cc697d38SMisael Lopez Cruz 67cc697d38SMisael Lopez Cruz static irqreturn_t twl6040_vib_irq_handler(int irq, void *data) 68cc697d38SMisael Lopez Cruz { 69cc697d38SMisael Lopez Cruz struct vibra_info *info = data; 70cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 71cc697d38SMisael Lopez Cruz u8 status; 72cc697d38SMisael Lopez Cruz 73cc697d38SMisael Lopez Cruz status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); 74cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBLOCDET) { 75cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Left Vibrator overcurrent detected\n"); 76cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL, 77cc697d38SMisael Lopez Cruz TWL6040_VIBENAL); 78cc697d38SMisael Lopez Cruz } 79cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBROCDET) { 80cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Right Vibrator overcurrent detected\n"); 81cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR, 82cc697d38SMisael Lopez Cruz TWL6040_VIBENAR); 83cc697d38SMisael Lopez Cruz } 84cc697d38SMisael Lopez Cruz 85cc697d38SMisael Lopez Cruz return IRQ_HANDLED; 86cc697d38SMisael Lopez Cruz } 87cc697d38SMisael Lopez Cruz 88cc697d38SMisael Lopez Cruz static void twl6040_vibra_enable(struct vibra_info *info) 89cc697d38SMisael Lopez Cruz { 90cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 91cc697d38SMisael Lopez Cruz int ret; 92cc697d38SMisael Lopez Cruz 93cc697d38SMisael Lopez Cruz ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies); 94cc697d38SMisael Lopez Cruz if (ret) { 95cc697d38SMisael Lopez Cruz dev_err(info->dev, "failed to enable regulators %d\n", ret); 96cc697d38SMisael Lopez Cruz return; 97cc697d38SMisael Lopez Cruz } 98cc697d38SMisael Lopez Cruz 99cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 1); 100cc697d38SMisael Lopez Cruz if (twl6040->rev <= TWL6040_REV_ES1_1) { 101cc697d38SMisael Lopez Cruz /* 102cc697d38SMisael Lopez Cruz * ERRATA: Disable overcurrent protection for at least 103cc697d38SMisael Lopez Cruz * 3ms when enabling vibrator drivers to avoid false 104cc697d38SMisael Lopez Cruz * overcurrent detection 105cc697d38SMisael Lopez Cruz */ 106cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 107cc697d38SMisael Lopez Cruz TWL6040_VIBENAL | TWL6040_VIBCTRLL); 108cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 109cc697d38SMisael Lopez Cruz TWL6040_VIBENAR | TWL6040_VIBCTRLR); 110cc697d38SMisael Lopez Cruz usleep_range(3000, 3500); 111cc697d38SMisael Lopez Cruz } 112cc697d38SMisael Lopez Cruz 113cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 114cc697d38SMisael Lopez Cruz TWL6040_VIBENAL); 115cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 116cc697d38SMisael Lopez Cruz TWL6040_VIBENAR); 117cc697d38SMisael Lopez Cruz 118cc697d38SMisael Lopez Cruz info->enabled = true; 119cc697d38SMisael Lopez Cruz } 120cc697d38SMisael Lopez Cruz 121cc697d38SMisael Lopez Cruz static void twl6040_vibra_disable(struct vibra_info *info) 122cc697d38SMisael Lopez Cruz { 123cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 124cc697d38SMisael Lopez Cruz 125cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00); 126cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00); 127cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 0); 128cc697d38SMisael Lopez Cruz 129cc697d38SMisael Lopez Cruz regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies); 130cc697d38SMisael Lopez Cruz 131cc697d38SMisael Lopez Cruz info->enabled = false; 132cc697d38SMisael Lopez Cruz } 133cc697d38SMisael Lopez Cruz 134cc697d38SMisael Lopez Cruz static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res, 135cc697d38SMisael Lopez Cruz int speed, int direction) 136cc697d38SMisael Lopez Cruz { 137cc697d38SMisael Lopez Cruz int vpk, max_code; 138cc697d38SMisael Lopez Cruz u8 vibdat; 139cc697d38SMisael Lopez Cruz 140cc697d38SMisael Lopez Cruz /* output swing */ 141cc697d38SMisael Lopez Cruz vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) / 142cc697d38SMisael Lopez Cruz (100 * (vibdrv_res + motor_res)); 143cc697d38SMisael Lopez Cruz 144cc697d38SMisael Lopez Cruz /* 50mV per VIBDAT code step */ 145cc697d38SMisael Lopez Cruz max_code = vpk / 50; 146cc697d38SMisael Lopez Cruz if (max_code > TWL6040_VIBDAT_MAX) 147cc697d38SMisael Lopez Cruz max_code = TWL6040_VIBDAT_MAX; 148cc697d38SMisael Lopez Cruz 149cc697d38SMisael Lopez Cruz /* scale speed to max allowed code */ 150cc697d38SMisael Lopez Cruz vibdat = (u8)((speed * max_code) / USHRT_MAX); 151cc697d38SMisael Lopez Cruz 152cc697d38SMisael Lopez Cruz /* 2's complement for direction > 180 degrees */ 153cc697d38SMisael Lopez Cruz vibdat *= direction; 154cc697d38SMisael Lopez Cruz 155cc697d38SMisael Lopez Cruz return vibdat; 156cc697d38SMisael Lopez Cruz } 157cc697d38SMisael Lopez Cruz 158cc697d38SMisael Lopez Cruz static void twl6040_vibra_set_effect(struct vibra_info *info) 159cc697d38SMisael Lopez Cruz { 160cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 161cc697d38SMisael Lopez Cruz u8 vibdatl, vibdatr; 162cc697d38SMisael Lopez Cruz int volt; 163cc697d38SMisael Lopez Cruz 164cc697d38SMisael Lopez Cruz /* weak motor */ 165cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[0].consumer) / 1000; 166cc697d38SMisael Lopez Cruz vibdatl = twl6040_vibra_code(volt, info->vibldrv_res, 167cc697d38SMisael Lopez Cruz info->viblmotor_res, 168cc697d38SMisael Lopez Cruz info->weak_speed, info->direction); 169cc697d38SMisael Lopez Cruz 170cc697d38SMisael Lopez Cruz /* strong motor */ 171cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[1].consumer) / 1000; 172cc697d38SMisael Lopez Cruz vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res, 173cc697d38SMisael Lopez Cruz info->vibrmotor_res, 174cc697d38SMisael Lopez Cruz info->strong_speed, info->direction); 175cc697d38SMisael Lopez Cruz 176cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl); 177cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr); 178cc697d38SMisael Lopez Cruz } 179cc697d38SMisael Lopez Cruz 180cc697d38SMisael Lopez Cruz static void vibra_play_work(struct work_struct *work) 181cc697d38SMisael Lopez Cruz { 182cc697d38SMisael Lopez Cruz struct vibra_info *info = container_of(work, 183cc697d38SMisael Lopez Cruz struct vibra_info, play_work); 184cc697d38SMisael Lopez Cruz 185cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 186cc697d38SMisael Lopez Cruz 187cc697d38SMisael Lopez Cruz if (info->weak_speed || info->strong_speed) { 188cc697d38SMisael Lopez Cruz if (!info->enabled) 189cc697d38SMisael Lopez Cruz twl6040_vibra_enable(info); 190cc697d38SMisael Lopez Cruz 191cc697d38SMisael Lopez Cruz twl6040_vibra_set_effect(info); 192cc697d38SMisael Lopez Cruz } else if (info->enabled) 193cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 194cc697d38SMisael Lopez Cruz 195cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 196cc697d38SMisael Lopez Cruz } 197cc697d38SMisael Lopez Cruz 198cc697d38SMisael Lopez Cruz static int vibra_play(struct input_dev *input, void *data, 199cc697d38SMisael Lopez Cruz struct ff_effect *effect) 200cc697d38SMisael Lopez Cruz { 201cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input); 202cc697d38SMisael Lopez Cruz int ret; 203cc697d38SMisael Lopez Cruz 204cc697d38SMisael Lopez Cruz info->weak_speed = effect->u.rumble.weak_magnitude; 205cc697d38SMisael Lopez Cruz info->strong_speed = effect->u.rumble.strong_magnitude; 206cc697d38SMisael Lopez Cruz info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1; 207cc697d38SMisael Lopez Cruz 208cc697d38SMisael Lopez Cruz ret = queue_work(info->workqueue, &info->play_work); 209cc697d38SMisael Lopez Cruz if (!ret) { 210cc697d38SMisael Lopez Cruz dev_info(&input->dev, "work is already on queue\n"); 211cc697d38SMisael Lopez Cruz return ret; 212cc697d38SMisael Lopez Cruz } 213cc697d38SMisael Lopez Cruz 214cc697d38SMisael Lopez Cruz return 0; 215cc697d38SMisael Lopez Cruz } 216cc697d38SMisael Lopez Cruz 217cc697d38SMisael Lopez Cruz static void twl6040_vibra_close(struct input_dev *input) 218cc697d38SMisael Lopez Cruz { 219cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input); 220cc697d38SMisael Lopez Cruz 221cc697d38SMisael Lopez Cruz cancel_work_sync(&info->play_work); 222cc697d38SMisael Lopez Cruz 223cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 224cc697d38SMisael Lopez Cruz 225cc697d38SMisael Lopez Cruz if (info->enabled) 226cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 227cc697d38SMisael Lopez Cruz 228cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 229cc697d38SMisael Lopez Cruz } 230cc697d38SMisael Lopez Cruz 231cc697d38SMisael Lopez Cruz #if CONFIG_PM_SLEEP 232cc697d38SMisael Lopez Cruz static int twl6040_vibra_suspend(struct device *dev) 233cc697d38SMisael Lopez Cruz { 234cc697d38SMisael Lopez Cruz struct platform_device *pdev = to_platform_device(dev); 235cc697d38SMisael Lopez Cruz struct vibra_info *info = platform_get_drvdata(pdev); 236cc697d38SMisael Lopez Cruz 237cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 238cc697d38SMisael Lopez Cruz 239cc697d38SMisael Lopez Cruz if (info->enabled) 240cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 241cc697d38SMisael Lopez Cruz 242cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 243cc697d38SMisael Lopez Cruz 244cc697d38SMisael Lopez Cruz return 0; 245cc697d38SMisael Lopez Cruz } 246cc697d38SMisael Lopez Cruz 247cc697d38SMisael Lopez Cruz #endif 248cc697d38SMisael Lopez Cruz 249cc697d38SMisael Lopez Cruz static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); 250cc697d38SMisael Lopez Cruz 251cc697d38SMisael Lopez Cruz static int __devinit twl6040_vibra_probe(struct platform_device *pdev) 252cc697d38SMisael Lopez Cruz { 253cc697d38SMisael Lopez Cruz struct twl4030_vibra_data *pdata = pdev->dev.platform_data; 254cc697d38SMisael Lopez Cruz struct vibra_info *info; 255cc697d38SMisael Lopez Cruz int ret; 256cc697d38SMisael Lopez Cruz 257cc697d38SMisael Lopez Cruz if (!pdata) { 258cc697d38SMisael Lopez Cruz dev_err(&pdev->dev, "platform_data not available\n"); 259cc697d38SMisael Lopez Cruz return -EINVAL; 260cc697d38SMisael Lopez Cruz } 261cc697d38SMisael Lopez Cruz 262cc697d38SMisael Lopez Cruz info = kzalloc(sizeof(*info), GFP_KERNEL); 263cc697d38SMisael Lopez Cruz if (!info) { 264cc697d38SMisael Lopez Cruz dev_err(&pdev->dev, "couldn't allocate memory\n"); 265cc697d38SMisael Lopez Cruz return -ENOMEM; 266cc697d38SMisael Lopez Cruz } 267cc697d38SMisael Lopez Cruz 268cc697d38SMisael Lopez Cruz info->dev = &pdev->dev; 269cc697d38SMisael Lopez Cruz info->twl6040 = dev_get_drvdata(pdev->dev.parent); 270cc697d38SMisael Lopez Cruz info->vibldrv_res = pdata->vibldrv_res; 271cc697d38SMisael Lopez Cruz info->vibrdrv_res = pdata->vibrdrv_res; 272cc697d38SMisael Lopez Cruz info->viblmotor_res = pdata->viblmotor_res; 273cc697d38SMisael Lopez Cruz info->vibrmotor_res = pdata->vibrmotor_res; 274cc697d38SMisael Lopez Cruz if ((!info->vibldrv_res && !info->viblmotor_res) || 275cc697d38SMisael Lopez Cruz (!info->vibrdrv_res && !info->vibrmotor_res)) { 276cc697d38SMisael Lopez Cruz dev_err(info->dev, "invalid vibra driver/motor resistance\n"); 277cc697d38SMisael Lopez Cruz ret = -EINVAL; 278cc697d38SMisael Lopez Cruz goto err_kzalloc; 279cc697d38SMisael Lopez Cruz } 280cc697d38SMisael Lopez Cruz 281625cbe46SPeter Ujfalusi info->irq = platform_get_irq(pdev, 0); 282625cbe46SPeter Ujfalusi if (info->irq < 0) { 283625cbe46SPeter Ujfalusi dev_err(info->dev, "invalid irq\n"); 284625cbe46SPeter Ujfalusi ret = -EINVAL; 285625cbe46SPeter Ujfalusi goto err_kzalloc; 286625cbe46SPeter Ujfalusi } 287625cbe46SPeter Ujfalusi 288cc697d38SMisael Lopez Cruz mutex_init(&info->mutex); 289cc697d38SMisael Lopez Cruz 290cc697d38SMisael Lopez Cruz info->input_dev = input_allocate_device(); 291cc697d38SMisael Lopez Cruz if (info->input_dev == NULL) { 292cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't allocate input device\n"); 293cc697d38SMisael Lopez Cruz ret = -ENOMEM; 294cc697d38SMisael Lopez Cruz goto err_kzalloc; 295cc697d38SMisael Lopez Cruz } 296cc697d38SMisael Lopez Cruz 297cc697d38SMisael Lopez Cruz input_set_drvdata(info->input_dev, info); 298cc697d38SMisael Lopez Cruz 299cc697d38SMisael Lopez Cruz info->input_dev->name = "twl6040:vibrator"; 300cc697d38SMisael Lopez Cruz info->input_dev->id.version = 1; 301cc697d38SMisael Lopez Cruz info->input_dev->dev.parent = pdev->dev.parent; 302cc697d38SMisael Lopez Cruz info->input_dev->close = twl6040_vibra_close; 303cc697d38SMisael Lopez Cruz __set_bit(FF_RUMBLE, info->input_dev->ffbit); 304cc697d38SMisael Lopez Cruz 305cc697d38SMisael Lopez Cruz ret = input_ff_create_memless(info->input_dev, NULL, vibra_play); 306cc697d38SMisael Lopez Cruz if (ret < 0) { 307cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register vibrator to FF\n"); 308cc697d38SMisael Lopez Cruz goto err_ialloc; 309cc697d38SMisael Lopez Cruz } 310cc697d38SMisael Lopez Cruz 311cc697d38SMisael Lopez Cruz ret = input_register_device(info->input_dev); 312cc697d38SMisael Lopez Cruz if (ret < 0) { 313cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register input device\n"); 314cc697d38SMisael Lopez Cruz goto err_iff; 315cc697d38SMisael Lopez Cruz } 316cc697d38SMisael Lopez Cruz 317cc697d38SMisael Lopez Cruz platform_set_drvdata(pdev, info); 318cc697d38SMisael Lopez Cruz 319625cbe46SPeter Ujfalusi ret = request_threaded_irq(info->irq, NULL, twl6040_vib_irq_handler, 0, 320cc697d38SMisael Lopez Cruz "twl6040_irq_vib", info); 321cc697d38SMisael Lopez Cruz if (ret) { 322cc697d38SMisael Lopez Cruz dev_err(info->dev, "VIB IRQ request failed: %d\n", ret); 323cc697d38SMisael Lopez Cruz goto err_irq; 324cc697d38SMisael Lopez Cruz } 325cc697d38SMisael Lopez Cruz 326cc697d38SMisael Lopez Cruz info->supplies[0].supply = "vddvibl"; 327cc697d38SMisael Lopez Cruz info->supplies[1].supply = "vddvibr"; 328cc697d38SMisael Lopez Cruz ret = regulator_bulk_get(info->dev, ARRAY_SIZE(info->supplies), 329cc697d38SMisael Lopez Cruz info->supplies); 330cc697d38SMisael Lopez Cruz if (ret) { 331cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't get regulators %d\n", ret); 332cc697d38SMisael Lopez Cruz goto err_regulator; 333cc697d38SMisael Lopez Cruz } 334cc697d38SMisael Lopez Cruz 335cc697d38SMisael Lopez Cruz if (pdata->vddvibl_uV) { 336cc697d38SMisael Lopez Cruz ret = regulator_set_voltage(info->supplies[0].consumer, 337cc697d38SMisael Lopez Cruz pdata->vddvibl_uV, 338cc697d38SMisael Lopez Cruz pdata->vddvibl_uV); 339cc697d38SMisael Lopez Cruz if (ret) { 340cc697d38SMisael Lopez Cruz dev_err(info->dev, "failed to set VDDVIBL volt %d\n", 341cc697d38SMisael Lopez Cruz ret); 342cc697d38SMisael Lopez Cruz goto err_voltage; 343cc697d38SMisael Lopez Cruz } 344cc697d38SMisael Lopez Cruz } 345cc697d38SMisael Lopez Cruz 346cc697d38SMisael Lopez Cruz if (pdata->vddvibr_uV) { 347cc697d38SMisael Lopez Cruz ret = regulator_set_voltage(info->supplies[1].consumer, 348cc697d38SMisael Lopez Cruz pdata->vddvibr_uV, 349cc697d38SMisael Lopez Cruz pdata->vddvibr_uV); 350cc697d38SMisael Lopez Cruz if (ret) { 351cc697d38SMisael Lopez Cruz dev_err(info->dev, "failed to set VDDVIBR volt %d\n", 352cc697d38SMisael Lopez Cruz ret); 353cc697d38SMisael Lopez Cruz goto err_voltage; 354cc697d38SMisael Lopez Cruz } 355cc697d38SMisael Lopez Cruz } 356cc697d38SMisael Lopez Cruz 357cc697d38SMisael Lopez Cruz info->workqueue = alloc_workqueue("twl6040-vibra", 0, 0); 358cc697d38SMisael Lopez Cruz if (info->workqueue == NULL) { 359cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't create workqueue\n"); 360cc697d38SMisael Lopez Cruz ret = -ENOMEM; 361cc697d38SMisael Lopez Cruz goto err_voltage; 362cc697d38SMisael Lopez Cruz } 363cc697d38SMisael Lopez Cruz INIT_WORK(&info->play_work, vibra_play_work); 364cc697d38SMisael Lopez Cruz 365cc697d38SMisael Lopez Cruz return 0; 366cc697d38SMisael Lopez Cruz 367cc697d38SMisael Lopez Cruz err_voltage: 368cc697d38SMisael Lopez Cruz regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies); 369cc697d38SMisael Lopez Cruz err_regulator: 370625cbe46SPeter Ujfalusi free_irq(info->irq, info); 371cc697d38SMisael Lopez Cruz err_irq: 372cc697d38SMisael Lopez Cruz input_unregister_device(info->input_dev); 373cc697d38SMisael Lopez Cruz info->input_dev = NULL; 374cc697d38SMisael Lopez Cruz err_iff: 375cc697d38SMisael Lopez Cruz if (info->input_dev) 376cc697d38SMisael Lopez Cruz input_ff_destroy(info->input_dev); 377cc697d38SMisael Lopez Cruz err_ialloc: 378cc697d38SMisael Lopez Cruz input_free_device(info->input_dev); 379cc697d38SMisael Lopez Cruz err_kzalloc: 380cc697d38SMisael Lopez Cruz kfree(info); 381cc697d38SMisael Lopez Cruz return ret; 382cc697d38SMisael Lopez Cruz } 383cc697d38SMisael Lopez Cruz 384cc697d38SMisael Lopez Cruz static int __devexit twl6040_vibra_remove(struct platform_device *pdev) 385cc697d38SMisael Lopez Cruz { 386cc697d38SMisael Lopez Cruz struct vibra_info *info = platform_get_drvdata(pdev); 387cc697d38SMisael Lopez Cruz 388cc697d38SMisael Lopez Cruz input_unregister_device(info->input_dev); 389625cbe46SPeter Ujfalusi free_irq(info->irq, info); 390cc697d38SMisael Lopez Cruz regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies); 391cc697d38SMisael Lopez Cruz destroy_workqueue(info->workqueue); 392cc697d38SMisael Lopez Cruz kfree(info); 393cc697d38SMisael Lopez Cruz 394cc697d38SMisael Lopez Cruz return 0; 395cc697d38SMisael Lopez Cruz } 396cc697d38SMisael Lopez Cruz 397cc697d38SMisael Lopez Cruz static struct platform_driver twl6040_vibra_driver = { 398cc697d38SMisael Lopez Cruz .probe = twl6040_vibra_probe, 399cc697d38SMisael Lopez Cruz .remove = __devexit_p(twl6040_vibra_remove), 400cc697d38SMisael Lopez Cruz .driver = { 401cc697d38SMisael Lopez Cruz .name = "twl6040-vibra", 402cc697d38SMisael Lopez Cruz .owner = THIS_MODULE, 403cc697d38SMisael Lopez Cruz .pm = &twl6040_vibra_pm_ops, 404cc697d38SMisael Lopez Cruz }, 405cc697d38SMisael Lopez Cruz }; 406cc697d38SMisael Lopez Cruz 407cc697d38SMisael Lopez Cruz static int __init twl6040_vibra_init(void) 408cc697d38SMisael Lopez Cruz { 409cc697d38SMisael Lopez Cruz return platform_driver_register(&twl6040_vibra_driver); 410cc697d38SMisael Lopez Cruz } 411cc697d38SMisael Lopez Cruz module_init(twl6040_vibra_init); 412cc697d38SMisael Lopez Cruz 413cc697d38SMisael Lopez Cruz static void __exit twl6040_vibra_exit(void) 414cc697d38SMisael Lopez Cruz { 415cc697d38SMisael Lopez Cruz platform_driver_unregister(&twl6040_vibra_driver); 416cc697d38SMisael Lopez Cruz } 417cc697d38SMisael Lopez Cruz module_exit(twl6040_vibra_exit); 418cc697d38SMisael Lopez Cruz 419cc697d38SMisael Lopez Cruz MODULE_ALIAS("platform:twl6040-vibra"); 420cc697d38SMisael Lopez Cruz MODULE_DESCRIPTION("TWL6040 Vibra driver"); 421cc697d38SMisael Lopez Cruz MODULE_LICENSE("GPL"); 422cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>"); 423cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); 424