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 workqueue_struct *workqueue; 49cc697d38SMisael Lopez Cruz struct work_struct play_work; 50cc697d38SMisael Lopez Cruz struct mutex mutex; 51625cbe46SPeter Ujfalusi int irq; 52cc697d38SMisael Lopez Cruz 53cc697d38SMisael Lopez Cruz bool enabled; 54cc697d38SMisael Lopez Cruz int weak_speed; 55cc697d38SMisael Lopez Cruz int strong_speed; 56cc697d38SMisael Lopez Cruz int direction; 57cc697d38SMisael Lopez Cruz 58cc697d38SMisael Lopez Cruz unsigned int vibldrv_res; 59cc697d38SMisael Lopez Cruz unsigned int vibrdrv_res; 60cc697d38SMisael Lopez Cruz unsigned int viblmotor_res; 61cc697d38SMisael Lopez Cruz unsigned int vibrmotor_res; 62cc697d38SMisael Lopez Cruz 63cc697d38SMisael Lopez Cruz struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES]; 64cc697d38SMisael Lopez Cruz 65cc697d38SMisael Lopez Cruz struct twl6040 *twl6040; 66cc697d38SMisael Lopez Cruz }; 67cc697d38SMisael Lopez Cruz 68cc697d38SMisael Lopez Cruz static irqreturn_t twl6040_vib_irq_handler(int irq, void *data) 69cc697d38SMisael Lopez Cruz { 70cc697d38SMisael Lopez Cruz struct vibra_info *info = data; 71cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 72cc697d38SMisael Lopez Cruz u8 status; 73cc697d38SMisael Lopez Cruz 74cc697d38SMisael Lopez Cruz status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); 75cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBLOCDET) { 76cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Left Vibrator overcurrent detected\n"); 77cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL, 781e036f65SPeter Ujfalusi TWL6040_VIBENA); 79cc697d38SMisael Lopez Cruz } 80cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBROCDET) { 81cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Right Vibrator overcurrent detected\n"); 82cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR, 831e036f65SPeter Ujfalusi TWL6040_VIBENA); 84cc697d38SMisael Lopez Cruz } 85cc697d38SMisael Lopez Cruz 86cc697d38SMisael Lopez Cruz return IRQ_HANDLED; 87cc697d38SMisael Lopez Cruz } 88cc697d38SMisael Lopez Cruz 89cc697d38SMisael Lopez Cruz static void twl6040_vibra_enable(struct vibra_info *info) 90cc697d38SMisael Lopez Cruz { 91cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 92cc697d38SMisael Lopez Cruz int ret; 93cc697d38SMisael Lopez Cruz 94cc697d38SMisael Lopez Cruz ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies); 95cc697d38SMisael Lopez Cruz if (ret) { 96cc697d38SMisael Lopez Cruz dev_err(info->dev, "failed to enable regulators %d\n", ret); 97cc697d38SMisael Lopez Cruz return; 98cc697d38SMisael Lopez Cruz } 99cc697d38SMisael Lopez Cruz 100cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 1); 1017e968985SPeter Ujfalusi if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) { 102cc697d38SMisael Lopez Cruz /* 103cc697d38SMisael Lopez Cruz * ERRATA: Disable overcurrent protection for at least 104cc697d38SMisael Lopez Cruz * 3ms when enabling vibrator drivers to avoid false 105cc697d38SMisael Lopez Cruz * overcurrent detection 106cc697d38SMisael Lopez Cruz */ 107cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 1081e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL); 109cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 1101e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL); 111cc697d38SMisael Lopez Cruz usleep_range(3000, 3500); 112cc697d38SMisael Lopez Cruz } 113cc697d38SMisael Lopez Cruz 114cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 1151e036f65SPeter Ujfalusi TWL6040_VIBENA); 116cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 1171e036f65SPeter Ujfalusi TWL6040_VIBENA); 118cc697d38SMisael Lopez Cruz 119cc697d38SMisael Lopez Cruz info->enabled = true; 120cc697d38SMisael Lopez Cruz } 121cc697d38SMisael Lopez Cruz 122cc697d38SMisael Lopez Cruz static void twl6040_vibra_disable(struct vibra_info *info) 123cc697d38SMisael Lopez Cruz { 124cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 125cc697d38SMisael Lopez Cruz 126cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00); 127cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00); 128cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 0); 129cc697d38SMisael Lopez Cruz 130cc697d38SMisael Lopez Cruz regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies); 131cc697d38SMisael Lopez Cruz 132cc697d38SMisael Lopez Cruz info->enabled = false; 133cc697d38SMisael Lopez Cruz } 134cc697d38SMisael Lopez Cruz 135cc697d38SMisael Lopez Cruz static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res, 136cc697d38SMisael Lopez Cruz int speed, int direction) 137cc697d38SMisael Lopez Cruz { 138cc697d38SMisael Lopez Cruz int vpk, max_code; 139cc697d38SMisael Lopez Cruz u8 vibdat; 140cc697d38SMisael Lopez Cruz 141cc697d38SMisael Lopez Cruz /* output swing */ 142cc697d38SMisael Lopez Cruz vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) / 143cc697d38SMisael Lopez Cruz (100 * (vibdrv_res + motor_res)); 144cc697d38SMisael Lopez Cruz 145cc697d38SMisael Lopez Cruz /* 50mV per VIBDAT code step */ 146cc697d38SMisael Lopez Cruz max_code = vpk / 50; 147cc697d38SMisael Lopez Cruz if (max_code > TWL6040_VIBDAT_MAX) 148cc697d38SMisael Lopez Cruz max_code = TWL6040_VIBDAT_MAX; 149cc697d38SMisael Lopez Cruz 150cc697d38SMisael Lopez Cruz /* scale speed to max allowed code */ 151cc697d38SMisael Lopez Cruz vibdat = (u8)((speed * max_code) / USHRT_MAX); 152cc697d38SMisael Lopez Cruz 153cc697d38SMisael Lopez Cruz /* 2's complement for direction > 180 degrees */ 154cc697d38SMisael Lopez Cruz vibdat *= direction; 155cc697d38SMisael Lopez Cruz 156cc697d38SMisael Lopez Cruz return vibdat; 157cc697d38SMisael Lopez Cruz } 158cc697d38SMisael Lopez Cruz 159cc697d38SMisael Lopez Cruz static void twl6040_vibra_set_effect(struct vibra_info *info) 160cc697d38SMisael Lopez Cruz { 161cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040; 162cc697d38SMisael Lopez Cruz u8 vibdatl, vibdatr; 163cc697d38SMisael Lopez Cruz int volt; 164cc697d38SMisael Lopez Cruz 165cc697d38SMisael Lopez Cruz /* weak motor */ 166cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[0].consumer) / 1000; 167cc697d38SMisael Lopez Cruz vibdatl = twl6040_vibra_code(volt, info->vibldrv_res, 168cc697d38SMisael Lopez Cruz info->viblmotor_res, 169cc697d38SMisael Lopez Cruz info->weak_speed, info->direction); 170cc697d38SMisael Lopez Cruz 171cc697d38SMisael Lopez Cruz /* strong motor */ 172cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[1].consumer) / 1000; 173cc697d38SMisael Lopez Cruz vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res, 174cc697d38SMisael Lopez Cruz info->vibrmotor_res, 175cc697d38SMisael Lopez Cruz info->strong_speed, info->direction); 176cc697d38SMisael Lopez Cruz 177cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl); 178cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr); 179cc697d38SMisael Lopez Cruz } 180cc697d38SMisael Lopez Cruz 181cc697d38SMisael Lopez Cruz static void vibra_play_work(struct work_struct *work) 182cc697d38SMisael Lopez Cruz { 183cc697d38SMisael Lopez Cruz struct vibra_info *info = container_of(work, 184cc697d38SMisael Lopez Cruz struct vibra_info, play_work); 185cc697d38SMisael Lopez Cruz 186cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 187cc697d38SMisael Lopez Cruz 188cc697d38SMisael Lopez Cruz if (info->weak_speed || info->strong_speed) { 189cc697d38SMisael Lopez Cruz if (!info->enabled) 190cc697d38SMisael Lopez Cruz twl6040_vibra_enable(info); 191cc697d38SMisael Lopez Cruz 192cc697d38SMisael Lopez Cruz twl6040_vibra_set_effect(info); 193cc697d38SMisael Lopez Cruz } else if (info->enabled) 194cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 195cc697d38SMisael Lopez Cruz 196cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 197cc697d38SMisael Lopez Cruz } 198cc697d38SMisael Lopez Cruz 199cc697d38SMisael Lopez Cruz static int vibra_play(struct input_dev *input, void *data, 200cc697d38SMisael Lopez Cruz struct ff_effect *effect) 201cc697d38SMisael Lopez Cruz { 202cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input); 203cc697d38SMisael Lopez Cruz int ret; 204cc697d38SMisael Lopez Cruz 2055f07c32eSPeter Ujfalusi /* Do not allow effect, while the routing is set to use audio */ 2065f07c32eSPeter Ujfalusi ret = twl6040_get_vibralr_status(info->twl6040); 2075f07c32eSPeter Ujfalusi if (ret & TWL6040_VIBSEL) { 2085f07c32eSPeter Ujfalusi dev_info(&input->dev, "Vibra is configured for audio\n"); 2095f07c32eSPeter Ujfalusi return -EBUSY; 2105f07c32eSPeter Ujfalusi } 2115f07c32eSPeter Ujfalusi 212cc697d38SMisael Lopez Cruz info->weak_speed = effect->u.rumble.weak_magnitude; 213cc697d38SMisael Lopez Cruz info->strong_speed = effect->u.rumble.strong_magnitude; 214cc697d38SMisael Lopez Cruz info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1; 215cc697d38SMisael Lopez Cruz 216cc697d38SMisael Lopez Cruz ret = queue_work(info->workqueue, &info->play_work); 217cc697d38SMisael Lopez Cruz if (!ret) { 218cc697d38SMisael Lopez Cruz dev_info(&input->dev, "work is already on queue\n"); 219cc697d38SMisael Lopez Cruz return ret; 220cc697d38SMisael Lopez Cruz } 221cc697d38SMisael Lopez Cruz 222cc697d38SMisael Lopez Cruz return 0; 223cc697d38SMisael Lopez Cruz } 224cc697d38SMisael Lopez Cruz 225cc697d38SMisael Lopez Cruz static void twl6040_vibra_close(struct input_dev *input) 226cc697d38SMisael Lopez Cruz { 227cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input); 228cc697d38SMisael Lopez Cruz 229cc697d38SMisael Lopez Cruz cancel_work_sync(&info->play_work); 230cc697d38SMisael Lopez Cruz 231cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 232cc697d38SMisael Lopez Cruz 233cc697d38SMisael Lopez Cruz if (info->enabled) 234cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 235cc697d38SMisael Lopez Cruz 236cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 237cc697d38SMisael Lopez Cruz } 238cc697d38SMisael Lopez Cruz 23997a652a8SJingoo Han static int __maybe_unused twl6040_vibra_suspend(struct device *dev) 240cc697d38SMisael Lopez Cruz { 241cc697d38SMisael Lopez Cruz struct platform_device *pdev = to_platform_device(dev); 242cc697d38SMisael Lopez Cruz struct vibra_info *info = platform_get_drvdata(pdev); 243cc697d38SMisael Lopez Cruz 244cc697d38SMisael Lopez Cruz mutex_lock(&info->mutex); 245cc697d38SMisael Lopez Cruz 246cc697d38SMisael Lopez Cruz if (info->enabled) 247cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info); 248cc697d38SMisael Lopez Cruz 249cc697d38SMisael Lopez Cruz mutex_unlock(&info->mutex); 250cc697d38SMisael Lopez Cruz 251cc697d38SMisael Lopez Cruz return 0; 252cc697d38SMisael Lopez Cruz } 253cc697d38SMisael Lopez Cruz 254cc697d38SMisael Lopez Cruz static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); 255cc697d38SMisael Lopez Cruz 2565298cc4cSBill Pemberton static int twl6040_vibra_probe(struct platform_device *pdev) 257cc697d38SMisael Lopez Cruz { 258e7ec014aSPeter Ujfalusi struct device *twl6040_core_dev = pdev->dev.parent; 25932e573c4SDmitry Torokhov struct device_node *twl6040_core_node; 260cc697d38SMisael Lopez Cruz struct vibra_info *info; 2619ac7b1a3SPeter Ujfalusi int vddvibl_uV = 0; 2629ac7b1a3SPeter Ujfalusi int vddvibr_uV = 0; 2631f9e1470SFabio Estevam int error; 264cc697d38SMisael Lopez Cruz 265e7ec014aSPeter Ujfalusi twl6040_core_node = of_find_node_by_name(twl6040_core_dev->of_node, 266e7ec014aSPeter Ujfalusi "vibra"); 2677bf2a98aSPeter Ujfalusi if (!twl6040_core_node) { 2687bf2a98aSPeter Ujfalusi dev_err(&pdev->dev, "parent of node is missing?\n"); 269cc697d38SMisael Lopez Cruz return -EINVAL; 270cc697d38SMisael Lopez Cruz } 271cc697d38SMisael Lopez Cruz 272b2ebcc1bSPeter Ujfalusi info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); 273cc697d38SMisael Lopez Cruz if (!info) { 274f048dd17SLibo Chen of_node_put(twl6040_core_node); 275cc697d38SMisael Lopez Cruz dev_err(&pdev->dev, "couldn't allocate memory\n"); 276cc697d38SMisael Lopez Cruz return -ENOMEM; 277cc697d38SMisael Lopez Cruz } 278cc697d38SMisael Lopez Cruz 279cc697d38SMisael Lopez Cruz info->dev = &pdev->dev; 2809ac7b1a3SPeter Ujfalusi 281cc697d38SMisael Lopez Cruz info->twl6040 = dev_get_drvdata(pdev->dev.parent); 2827bf2a98aSPeter Ujfalusi 283e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibldrv-res", 284e7ec014aSPeter Ujfalusi &info->vibldrv_res); 285e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res", 286e7ec014aSPeter Ujfalusi &info->vibrdrv_res); 287e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,viblmotor-res", 2889ac7b1a3SPeter Ujfalusi &info->viblmotor_res); 289e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res", 2909ac7b1a3SPeter Ujfalusi &info->vibrmotor_res); 2917bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV); 2927bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV); 2939ac7b1a3SPeter Ujfalusi 294f048dd17SLibo Chen of_node_put(twl6040_core_node); 295f048dd17SLibo Chen 296cc697d38SMisael Lopez Cruz if ((!info->vibldrv_res && !info->viblmotor_res) || 297cc697d38SMisael Lopez Cruz (!info->vibrdrv_res && !info->vibrmotor_res)) { 298cc697d38SMisael Lopez Cruz dev_err(info->dev, "invalid vibra driver/motor resistance\n"); 299b2ebcc1bSPeter Ujfalusi return -EINVAL; 300cc697d38SMisael Lopez Cruz } 301cc697d38SMisael Lopez Cruz 302625cbe46SPeter Ujfalusi info->irq = platform_get_irq(pdev, 0); 303625cbe46SPeter Ujfalusi if (info->irq < 0) { 304625cbe46SPeter Ujfalusi dev_err(info->dev, "invalid irq\n"); 305b2ebcc1bSPeter Ujfalusi return -EINVAL; 306625cbe46SPeter Ujfalusi } 307625cbe46SPeter Ujfalusi 308cc697d38SMisael Lopez Cruz mutex_init(&info->mutex); 309cc697d38SMisael Lopez Cruz 3101f9e1470SFabio Estevam error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL, 311b2ebcc1bSPeter Ujfalusi twl6040_vib_irq_handler, 0, 312b2ebcc1bSPeter Ujfalusi "twl6040_irq_vib", info); 3131f9e1470SFabio Estevam if (error) { 3141f9e1470SFabio Estevam dev_err(info->dev, "VIB IRQ request failed: %d\n", error); 3151f9e1470SFabio Estevam return error; 316b2ebcc1bSPeter Ujfalusi } 317b2ebcc1bSPeter Ujfalusi 318b2ebcc1bSPeter Ujfalusi info->supplies[0].supply = "vddvibl"; 319b2ebcc1bSPeter Ujfalusi info->supplies[1].supply = "vddvibr"; 320b2ebcc1bSPeter Ujfalusi /* 321b2ebcc1bSPeter Ujfalusi * When booted with Device tree the regulators are attached to the 322b2ebcc1bSPeter Ujfalusi * parent device (twl6040 MFD core) 323b2ebcc1bSPeter Ujfalusi */ 3241f9e1470SFabio Estevam error = devm_regulator_bulk_get(twl6040_core_dev, 3251f9e1470SFabio Estevam ARRAY_SIZE(info->supplies), 3267bf2a98aSPeter Ujfalusi info->supplies); 3271f9e1470SFabio Estevam if (error) { 3281f9e1470SFabio Estevam dev_err(info->dev, "couldn't get regulators %d\n", error); 3291f9e1470SFabio Estevam return error; 330b2ebcc1bSPeter Ujfalusi } 331b2ebcc1bSPeter Ujfalusi 332b2ebcc1bSPeter Ujfalusi if (vddvibl_uV) { 3331f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[0].consumer, 334b2ebcc1bSPeter Ujfalusi vddvibl_uV, vddvibl_uV); 3351f9e1470SFabio Estevam if (error) { 336b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBL volt %d\n", 3371f9e1470SFabio Estevam error); 3381f9e1470SFabio Estevam return error; 339b2ebcc1bSPeter Ujfalusi } 340b2ebcc1bSPeter Ujfalusi } 341b2ebcc1bSPeter Ujfalusi 342b2ebcc1bSPeter Ujfalusi if (vddvibr_uV) { 3431f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[1].consumer, 344b2ebcc1bSPeter Ujfalusi vddvibr_uV, vddvibr_uV); 3451f9e1470SFabio Estevam if (error) { 346b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBR volt %d\n", 3471f9e1470SFabio Estevam error); 3481f9e1470SFabio Estevam return error; 349b2ebcc1bSPeter Ujfalusi } 350b2ebcc1bSPeter Ujfalusi } 351b2ebcc1bSPeter Ujfalusi 352b2ebcc1bSPeter Ujfalusi INIT_WORK(&info->play_work, vibra_play_work); 353b2ebcc1bSPeter Ujfalusi 3541f9e1470SFabio Estevam info->input_dev = devm_input_allocate_device(&pdev->dev); 3551f9e1470SFabio Estevam if (!info->input_dev) { 356cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't allocate input device\n"); 3571f9e1470SFabio Estevam return -ENOMEM; 358cc697d38SMisael Lopez Cruz } 359cc697d38SMisael Lopez Cruz 360cc697d38SMisael Lopez Cruz input_set_drvdata(info->input_dev, info); 361cc697d38SMisael Lopez Cruz 362cc697d38SMisael Lopez Cruz info->input_dev->name = "twl6040:vibrator"; 363cc697d38SMisael Lopez Cruz info->input_dev->id.version = 1; 364cc697d38SMisael Lopez Cruz info->input_dev->dev.parent = pdev->dev.parent; 365cc697d38SMisael Lopez Cruz info->input_dev->close = twl6040_vibra_close; 366cc697d38SMisael Lopez Cruz __set_bit(FF_RUMBLE, info->input_dev->ffbit); 367cc697d38SMisael Lopez Cruz 3681f9e1470SFabio Estevam error = input_ff_create_memless(info->input_dev, NULL, vibra_play); 3691f9e1470SFabio Estevam if (error) { 370cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register vibrator to FF\n"); 3711f9e1470SFabio Estevam return error; 372cc697d38SMisael Lopez Cruz } 373cc697d38SMisael Lopez Cruz 3741f9e1470SFabio Estevam error = input_register_device(info->input_dev); 3751f9e1470SFabio Estevam if (error) { 376cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register input device\n"); 3771f9e1470SFabio Estevam return error; 378cc697d38SMisael Lopez Cruz } 379cc697d38SMisael Lopez Cruz 380cc697d38SMisael Lopez Cruz platform_set_drvdata(pdev, info); 381cc697d38SMisael Lopez Cruz 382cc697d38SMisael Lopez Cruz return 0; 383cc697d38SMisael Lopez Cruz } 384cc697d38SMisael Lopez Cruz 385cc697d38SMisael Lopez Cruz static struct platform_driver twl6040_vibra_driver = { 386cc697d38SMisael Lopez Cruz .probe = twl6040_vibra_probe, 387cc697d38SMisael Lopez Cruz .driver = { 388cc697d38SMisael Lopez Cruz .name = "twl6040-vibra", 389cc697d38SMisael Lopez Cruz .owner = THIS_MODULE, 390cc697d38SMisael Lopez Cruz .pm = &twl6040_vibra_pm_ops, 391cc697d38SMisael Lopez Cruz }, 392cc697d38SMisael Lopez Cruz }; 393840a746bSJJ Ding module_platform_driver(twl6040_vibra_driver); 394cc697d38SMisael Lopez Cruz 395cc697d38SMisael Lopez Cruz MODULE_ALIAS("platform:twl6040-vibra"); 396cc697d38SMisael Lopez Cruz MODULE_DESCRIPTION("TWL6040 Vibra driver"); 397cc697d38SMisael Lopez Cruz MODULE_LICENSE("GPL"); 398cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>"); 399cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); 400