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> 309ac7b1a3SPeter Ujfalusi #include <linux/of.h> 31cc697d38SMisael Lopez Cruz #include <linux/workqueue.h> 328eaeb939SPeter Ujfalusi #include <linux/input.h> 33cc697d38SMisael Lopez Cruz #include <linux/mfd/twl6040.h> 34cc697d38SMisael Lopez Cruz #include <linux/slab.h> 35cc697d38SMisael Lopez Cruz #include <linux/delay.h> 36cc697d38SMisael Lopez Cruz #include <linux/regulator/consumer.h> 37cc697d38SMisael Lopez Cruz 38cc697d38SMisael Lopez Cruz #define EFFECT_DIR_180_DEG 0x8000 39cc697d38SMisael Lopez Cruz 40cc697d38SMisael Lopez Cruz /* Recommended modulation index 85% */ 41cc697d38SMisael Lopez Cruz #define TWL6040_VIBRA_MOD 85 42cc697d38SMisael Lopez Cruz 43cc697d38SMisael Lopez Cruz #define TWL6040_NUM_SUPPLIES 2 44cc697d38SMisael Lopez Cruz 45cc697d38SMisael Lopez Cruz struct vibra_info { 46cc697d38SMisael Lopez Cruz struct device *dev; 47cc697d38SMisael Lopez Cruz struct input_dev *input_dev; 48cc697d38SMisael Lopez Cruz struct work_struct play_work; 499e4cc255SH. Nikolaus Schaller 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, 771e036f65SPeter Ujfalusi TWL6040_VIBENA); 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, 821e036f65SPeter Ujfalusi TWL6040_VIBENA); 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); 1007e968985SPeter Ujfalusi if (twl6040_get_revid(twl6040) <= 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, 1071e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL); 108cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 1091e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL); 110cc697d38SMisael Lopez Cruz usleep_range(3000, 3500); 111cc697d38SMisael Lopez Cruz } 112cc697d38SMisael Lopez Cruz 113cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 1141e036f65SPeter Ujfalusi TWL6040_VIBENA); 115cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 1161e036f65SPeter Ujfalusi TWL6040_VIBENA); 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); 18428a994faSH. Nikolaus Schaller int ret; 18528a994faSH. Nikolaus Schaller 18628a994faSH. Nikolaus Schaller /* Do not allow effect, while the routing is set to use audio */ 18728a994faSH. Nikolaus Schaller ret = twl6040_get_vibralr_status(info->twl6040); 18828a994faSH. Nikolaus Schaller if (ret & TWL6040_VIBSEL) { 18928a994faSH. Nikolaus Schaller dev_info(info->dev, "Vibra is configured for audio\n"); 19028a994faSH. Nikolaus Schaller return; 19128a994faSH. Nikolaus Schaller } 192cc697d38SMisael Lopez Cruz 193cc697d38SMisael Lopez Cruz if (info->weak_speed || info->strong_speed) { 194cc697d38SMisael Lopez Cruz if (!info->enabled) 195cc697d38SMisael Lopez Cruz twl6040_vibra_enable(info); 196cc697d38SMisael Lopez Cruz 197cc697d38SMisael Lopez Cruz twl6040_vibra_set_effect(info); 198cc697d38SMisael Lopez Cruz } else if (info->enabled) 199cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 200cc697d38SMisael Lopez Cruz 201cc697d38SMisael Lopez Cruz } 202cc697d38SMisael Lopez Cruz 203cc697d38SMisael Lopez Cruz static int vibra_play(struct input_dev *input, void *data, 204cc697d38SMisael Lopez Cruz struct ff_effect *effect) 205cc697d38SMisael Lopez Cruz { 206cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input); 2075f07c32eSPeter Ujfalusi 208cc697d38SMisael Lopez Cruz info->weak_speed = effect->u.rumble.weak_magnitude; 209cc697d38SMisael Lopez Cruz info->strong_speed = effect->u.rumble.strong_magnitude; 210cc697d38SMisael Lopez Cruz info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1; 211cc697d38SMisael Lopez Cruz 2125f7fb6f1SH. Nikolaus Schaller schedule_work(&info->play_work); 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 if (info->enabled) 224cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 225cc697d38SMisael Lopez Cruz } 226cc697d38SMisael Lopez Cruz 22797a652a8SJingoo Han static int __maybe_unused twl6040_vibra_suspend(struct device *dev) 228cc697d38SMisael Lopez Cruz { 229cc697d38SMisael Lopez Cruz struct platform_device *pdev = to_platform_device(dev); 230cc697d38SMisael Lopez Cruz struct vibra_info *info = platform_get_drvdata(pdev); 231cc697d38SMisael Lopez Cruz 2329e4cc255SH. Nikolaus Schaller cancel_work_sync(&info->play_work); 233cc697d38SMisael Lopez Cruz 234cc697d38SMisael Lopez Cruz if (info->enabled) 235cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 236cc697d38SMisael Lopez Cruz 237cc697d38SMisael Lopez Cruz return 0; 238cc697d38SMisael Lopez Cruz } 239cc697d38SMisael Lopez Cruz 240cc697d38SMisael Lopez Cruz static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); 241cc697d38SMisael Lopez Cruz 2425298cc4cSBill Pemberton static int twl6040_vibra_probe(struct platform_device *pdev) 243cc697d38SMisael Lopez Cruz { 244e7ec014aSPeter Ujfalusi struct device *twl6040_core_dev = pdev->dev.parent; 24532e573c4SDmitry Torokhov struct device_node *twl6040_core_node; 246cc697d38SMisael Lopez Cruz struct vibra_info *info; 2479ac7b1a3SPeter Ujfalusi int vddvibl_uV = 0; 2489ac7b1a3SPeter Ujfalusi int vddvibr_uV = 0; 2491f9e1470SFabio Estevam int error; 250cc697d38SMisael Lopez Cruz 251dcaf12a8SJohan Hovold twl6040_core_node = of_get_child_by_name(twl6040_core_dev->of_node, 252e7ec014aSPeter Ujfalusi "vibra"); 2537bf2a98aSPeter Ujfalusi if (!twl6040_core_node) { 2547bf2a98aSPeter Ujfalusi dev_err(&pdev->dev, "parent of node is missing?\n"); 255cc697d38SMisael Lopez Cruz return -EINVAL; 256cc697d38SMisael Lopez Cruz } 257cc697d38SMisael Lopez Cruz 258b2ebcc1bSPeter Ujfalusi info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); 259cc697d38SMisael Lopez Cruz if (!info) { 260f048dd17SLibo Chen of_node_put(twl6040_core_node); 261cc697d38SMisael Lopez Cruz dev_err(&pdev->dev, "couldn't allocate memory\n"); 262cc697d38SMisael Lopez Cruz return -ENOMEM; 263cc697d38SMisael Lopez Cruz } 264cc697d38SMisael Lopez Cruz 265cc697d38SMisael Lopez Cruz info->dev = &pdev->dev; 2669ac7b1a3SPeter Ujfalusi 267cc697d38SMisael Lopez Cruz info->twl6040 = dev_get_drvdata(pdev->dev.parent); 2687bf2a98aSPeter Ujfalusi 269e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibldrv-res", 270e7ec014aSPeter Ujfalusi &info->vibldrv_res); 271e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res", 272e7ec014aSPeter Ujfalusi &info->vibrdrv_res); 273e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,viblmotor-res", 2749ac7b1a3SPeter Ujfalusi &info->viblmotor_res); 275e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res", 2769ac7b1a3SPeter Ujfalusi &info->vibrmotor_res); 2777bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV); 2787bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV); 2799ac7b1a3SPeter Ujfalusi 280f048dd17SLibo Chen of_node_put(twl6040_core_node); 281f048dd17SLibo Chen 282cc697d38SMisael Lopez Cruz if ((!info->vibldrv_res && !info->viblmotor_res) || 283cc697d38SMisael Lopez Cruz (!info->vibrdrv_res && !info->vibrmotor_res)) { 284cc697d38SMisael Lopez Cruz dev_err(info->dev, "invalid vibra driver/motor resistance\n"); 285b2ebcc1bSPeter Ujfalusi return -EINVAL; 286cc697d38SMisael Lopez Cruz } 287cc697d38SMisael Lopez Cruz 288625cbe46SPeter Ujfalusi info->irq = platform_get_irq(pdev, 0); 289625cbe46SPeter Ujfalusi if (info->irq < 0) { 290625cbe46SPeter Ujfalusi dev_err(info->dev, "invalid irq\n"); 291b2ebcc1bSPeter Ujfalusi return -EINVAL; 292625cbe46SPeter Ujfalusi } 293625cbe46SPeter Ujfalusi 2941f9e1470SFabio Estevam error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL, 2954be01a29SFabio Estevam twl6040_vib_irq_handler, 2964be01a29SFabio Estevam IRQF_ONESHOT, 297b2ebcc1bSPeter Ujfalusi "twl6040_irq_vib", info); 2981f9e1470SFabio Estevam if (error) { 2991f9e1470SFabio Estevam dev_err(info->dev, "VIB IRQ request failed: %d\n", error); 3001f9e1470SFabio Estevam return error; 301b2ebcc1bSPeter Ujfalusi } 302b2ebcc1bSPeter Ujfalusi 303b2ebcc1bSPeter Ujfalusi info->supplies[0].supply = "vddvibl"; 304b2ebcc1bSPeter Ujfalusi info->supplies[1].supply = "vddvibr"; 305b2ebcc1bSPeter Ujfalusi /* 306b2ebcc1bSPeter Ujfalusi * When booted with Device tree the regulators are attached to the 307b2ebcc1bSPeter Ujfalusi * parent device (twl6040 MFD core) 308b2ebcc1bSPeter Ujfalusi */ 3091f9e1470SFabio Estevam error = devm_regulator_bulk_get(twl6040_core_dev, 3101f9e1470SFabio Estevam ARRAY_SIZE(info->supplies), 3117bf2a98aSPeter Ujfalusi info->supplies); 3121f9e1470SFabio Estevam if (error) { 3131f9e1470SFabio Estevam dev_err(info->dev, "couldn't get regulators %d\n", error); 3141f9e1470SFabio Estevam return error; 315b2ebcc1bSPeter Ujfalusi } 316b2ebcc1bSPeter Ujfalusi 317b2ebcc1bSPeter Ujfalusi if (vddvibl_uV) { 3181f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[0].consumer, 319b2ebcc1bSPeter Ujfalusi vddvibl_uV, vddvibl_uV); 3201f9e1470SFabio Estevam if (error) { 321b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBL volt %d\n", 3221f9e1470SFabio Estevam error); 3231f9e1470SFabio Estevam return error; 324b2ebcc1bSPeter Ujfalusi } 325b2ebcc1bSPeter Ujfalusi } 326b2ebcc1bSPeter Ujfalusi 327b2ebcc1bSPeter Ujfalusi if (vddvibr_uV) { 3281f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[1].consumer, 329b2ebcc1bSPeter Ujfalusi vddvibr_uV, vddvibr_uV); 3301f9e1470SFabio Estevam if (error) { 331b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBR volt %d\n", 3321f9e1470SFabio Estevam error); 3331f9e1470SFabio Estevam return error; 334b2ebcc1bSPeter Ujfalusi } 335b2ebcc1bSPeter Ujfalusi } 336b2ebcc1bSPeter Ujfalusi 337b2ebcc1bSPeter Ujfalusi INIT_WORK(&info->play_work, vibra_play_work); 338b2ebcc1bSPeter Ujfalusi 3391f9e1470SFabio Estevam info->input_dev = devm_input_allocate_device(&pdev->dev); 3401f9e1470SFabio Estevam if (!info->input_dev) { 341cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't allocate input device\n"); 3421f9e1470SFabio Estevam return -ENOMEM; 343cc697d38SMisael Lopez Cruz } 344cc697d38SMisael Lopez Cruz 345cc697d38SMisael Lopez Cruz input_set_drvdata(info->input_dev, info); 346cc697d38SMisael Lopez Cruz 347cc697d38SMisael Lopez Cruz info->input_dev->name = "twl6040:vibrator"; 348cc697d38SMisael Lopez Cruz info->input_dev->id.version = 1; 349cc697d38SMisael Lopez Cruz info->input_dev->close = twl6040_vibra_close; 350cc697d38SMisael Lopez Cruz __set_bit(FF_RUMBLE, info->input_dev->ffbit); 351cc697d38SMisael Lopez Cruz 3521f9e1470SFabio Estevam error = input_ff_create_memless(info->input_dev, NULL, vibra_play); 3531f9e1470SFabio Estevam if (error) { 354cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register vibrator to FF\n"); 3551f9e1470SFabio Estevam return error; 356cc697d38SMisael Lopez Cruz } 357cc697d38SMisael Lopez Cruz 3581f9e1470SFabio Estevam error = input_register_device(info->input_dev); 3591f9e1470SFabio Estevam if (error) { 360cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register input device\n"); 3611f9e1470SFabio Estevam return error; 362cc697d38SMisael Lopez Cruz } 363cc697d38SMisael Lopez Cruz 364cc697d38SMisael Lopez Cruz platform_set_drvdata(pdev, info); 365cc697d38SMisael Lopez Cruz 366cc697d38SMisael Lopez Cruz return 0; 367cc697d38SMisael Lopez Cruz } 368cc697d38SMisael Lopez Cruz 369cc697d38SMisael Lopez Cruz static struct platform_driver twl6040_vibra_driver = { 370cc697d38SMisael Lopez Cruz .probe = twl6040_vibra_probe, 371cc697d38SMisael Lopez Cruz .driver = { 372cc697d38SMisael Lopez Cruz .name = "twl6040-vibra", 373cc697d38SMisael Lopez Cruz .pm = &twl6040_vibra_pm_ops, 374cc697d38SMisael Lopez Cruz }, 375cc697d38SMisael Lopez Cruz }; 376840a746bSJJ Ding module_platform_driver(twl6040_vibra_driver); 377cc697d38SMisael Lopez Cruz 378cc697d38SMisael Lopez Cruz MODULE_ALIAS("platform:twl6040-vibra"); 379cc697d38SMisael Lopez Cruz MODULE_DESCRIPTION("TWL6040 Vibra driver"); 380cc697d38SMisael Lopez Cruz MODULE_LICENSE("GPL"); 381cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>"); 382cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); 383