12b27bdccSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
2cc697d38SMisael Lopez Cruz /*
3cc697d38SMisael Lopez Cruz * twl6040-vibra.c - TWL6040 Vibrator driver
4cc697d38SMisael Lopez Cruz *
5cc697d38SMisael Lopez Cruz * Author: Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
6cc697d38SMisael Lopez Cruz * Author: Misael Lopez Cruz <misael.lopez@ti.com>
7cc697d38SMisael Lopez Cruz *
8cc697d38SMisael Lopez Cruz * Copyright: (C) 2011 Texas Instruments, Inc.
9cc697d38SMisael Lopez Cruz *
10cc697d38SMisael Lopez Cruz * Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com>
11cc697d38SMisael Lopez Cruz * Felipe Balbi <felipe.balbi@nokia.com>
12cc697d38SMisael Lopez Cruz * Jari Vanhala <ext-javi.vanhala@nokia.com>
13cc697d38SMisael Lopez Cruz */
14cc697d38SMisael Lopez Cruz #include <linux/module.h>
15cc697d38SMisael Lopez Cruz #include <linux/platform_device.h>
169ac7b1a3SPeter Ujfalusi #include <linux/of.h>
17cc697d38SMisael Lopez Cruz #include <linux/workqueue.h>
188eaeb939SPeter Ujfalusi #include <linux/input.h>
19cc697d38SMisael Lopez Cruz #include <linux/mfd/twl6040.h>
20cc697d38SMisael Lopez Cruz #include <linux/slab.h>
21cc697d38SMisael Lopez Cruz #include <linux/delay.h>
22cc697d38SMisael Lopez Cruz #include <linux/regulator/consumer.h>
23cc697d38SMisael Lopez Cruz
24cc697d38SMisael Lopez Cruz #define EFFECT_DIR_180_DEG 0x8000
25cc697d38SMisael Lopez Cruz
26cc697d38SMisael Lopez Cruz /* Recommended modulation index 85% */
27cc697d38SMisael Lopez Cruz #define TWL6040_VIBRA_MOD 85
28cc697d38SMisael Lopez Cruz
29cc697d38SMisael Lopez Cruz #define TWL6040_NUM_SUPPLIES 2
30cc697d38SMisael Lopez Cruz
31cc697d38SMisael Lopez Cruz struct vibra_info {
32cc697d38SMisael Lopez Cruz struct device *dev;
33cc697d38SMisael Lopez Cruz struct input_dev *input_dev;
34cc697d38SMisael Lopez Cruz struct work_struct play_work;
359e4cc255SH. Nikolaus Schaller
36625cbe46SPeter Ujfalusi int irq;
37cc697d38SMisael Lopez Cruz
38cc697d38SMisael Lopez Cruz bool enabled;
39cc697d38SMisael Lopez Cruz int weak_speed;
40cc697d38SMisael Lopez Cruz int strong_speed;
41cc697d38SMisael Lopez Cruz int direction;
42cc697d38SMisael Lopez Cruz
43cc697d38SMisael Lopez Cruz unsigned int vibldrv_res;
44cc697d38SMisael Lopez Cruz unsigned int vibrdrv_res;
45cc697d38SMisael Lopez Cruz unsigned int viblmotor_res;
46cc697d38SMisael Lopez Cruz unsigned int vibrmotor_res;
47cc697d38SMisael Lopez Cruz
48cc697d38SMisael Lopez Cruz struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES];
49cc697d38SMisael Lopez Cruz
50cc697d38SMisael Lopez Cruz struct twl6040 *twl6040;
51cc697d38SMisael Lopez Cruz };
52cc697d38SMisael Lopez Cruz
twl6040_vib_irq_handler(int irq,void * data)53cc697d38SMisael Lopez Cruz static irqreturn_t twl6040_vib_irq_handler(int irq, void *data)
54cc697d38SMisael Lopez Cruz {
55cc697d38SMisael Lopez Cruz struct vibra_info *info = data;
56cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040;
57cc697d38SMisael Lopez Cruz u8 status;
58cc697d38SMisael Lopez Cruz
59cc697d38SMisael Lopez Cruz status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
60cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBLOCDET) {
61cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Left Vibrator overcurrent detected\n");
62cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL,
631e036f65SPeter Ujfalusi TWL6040_VIBENA);
64cc697d38SMisael Lopez Cruz }
65cc697d38SMisael Lopez Cruz if (status & TWL6040_VIBROCDET) {
66cc697d38SMisael Lopez Cruz dev_warn(info->dev, "Right Vibrator overcurrent detected\n");
67cc697d38SMisael Lopez Cruz twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR,
681e036f65SPeter Ujfalusi TWL6040_VIBENA);
69cc697d38SMisael Lopez Cruz }
70cc697d38SMisael Lopez Cruz
71cc697d38SMisael Lopez Cruz return IRQ_HANDLED;
72cc697d38SMisael Lopez Cruz }
73cc697d38SMisael Lopez Cruz
twl6040_vibra_enable(struct vibra_info * info)74cc697d38SMisael Lopez Cruz static void twl6040_vibra_enable(struct vibra_info *info)
75cc697d38SMisael Lopez Cruz {
76cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040;
77cc697d38SMisael Lopez Cruz int ret;
78cc697d38SMisael Lopez Cruz
79cc697d38SMisael Lopez Cruz ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies);
80cc697d38SMisael Lopez Cruz if (ret) {
81cc697d38SMisael Lopez Cruz dev_err(info->dev, "failed to enable regulators %d\n", ret);
82cc697d38SMisael Lopez Cruz return;
83cc697d38SMisael Lopez Cruz }
84cc697d38SMisael Lopez Cruz
85cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 1);
867e968985SPeter Ujfalusi if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) {
87cc697d38SMisael Lopez Cruz /*
88cc697d38SMisael Lopez Cruz * ERRATA: Disable overcurrent protection for at least
89cc697d38SMisael Lopez Cruz * 3ms when enabling vibrator drivers to avoid false
90cc697d38SMisael Lopez Cruz * overcurrent detection
91cc697d38SMisael Lopez Cruz */
92cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
931e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL);
94cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
951e036f65SPeter Ujfalusi TWL6040_VIBENA | TWL6040_VIBCTRL);
96cc697d38SMisael Lopez Cruz usleep_range(3000, 3500);
97cc697d38SMisael Lopez Cruz }
98cc697d38SMisael Lopez Cruz
99cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
1001e036f65SPeter Ujfalusi TWL6040_VIBENA);
101cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
1021e036f65SPeter Ujfalusi TWL6040_VIBENA);
103cc697d38SMisael Lopez Cruz
104cc697d38SMisael Lopez Cruz info->enabled = true;
105cc697d38SMisael Lopez Cruz }
106cc697d38SMisael Lopez Cruz
twl6040_vibra_disable(struct vibra_info * info)107cc697d38SMisael Lopez Cruz static void twl6040_vibra_disable(struct vibra_info *info)
108cc697d38SMisael Lopez Cruz {
109cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040;
110cc697d38SMisael Lopez Cruz
111cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00);
112cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00);
113cc697d38SMisael Lopez Cruz twl6040_power(info->twl6040, 0);
114cc697d38SMisael Lopez Cruz
115cc697d38SMisael Lopez Cruz regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies);
116cc697d38SMisael Lopez Cruz
117cc697d38SMisael Lopez Cruz info->enabled = false;
118cc697d38SMisael Lopez Cruz }
119cc697d38SMisael Lopez Cruz
twl6040_vibra_code(int vddvib,int vibdrv_res,int motor_res,int speed,int direction)120cc697d38SMisael Lopez Cruz static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res,
121cc697d38SMisael Lopez Cruz int speed, int direction)
122cc697d38SMisael Lopez Cruz {
123cc697d38SMisael Lopez Cruz int vpk, max_code;
124cc697d38SMisael Lopez Cruz u8 vibdat;
125cc697d38SMisael Lopez Cruz
126cc697d38SMisael Lopez Cruz /* output swing */
127cc697d38SMisael Lopez Cruz vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) /
128cc697d38SMisael Lopez Cruz (100 * (vibdrv_res + motor_res));
129cc697d38SMisael Lopez Cruz
130cc697d38SMisael Lopez Cruz /* 50mV per VIBDAT code step */
131cc697d38SMisael Lopez Cruz max_code = vpk / 50;
132cc697d38SMisael Lopez Cruz if (max_code > TWL6040_VIBDAT_MAX)
133cc697d38SMisael Lopez Cruz max_code = TWL6040_VIBDAT_MAX;
134cc697d38SMisael Lopez Cruz
135cc697d38SMisael Lopez Cruz /* scale speed to max allowed code */
136cc697d38SMisael Lopez Cruz vibdat = (u8)((speed * max_code) / USHRT_MAX);
137cc697d38SMisael Lopez Cruz
138cc697d38SMisael Lopez Cruz /* 2's complement for direction > 180 degrees */
139cc697d38SMisael Lopez Cruz vibdat *= direction;
140cc697d38SMisael Lopez Cruz
141cc697d38SMisael Lopez Cruz return vibdat;
142cc697d38SMisael Lopez Cruz }
143cc697d38SMisael Lopez Cruz
twl6040_vibra_set_effect(struct vibra_info * info)144cc697d38SMisael Lopez Cruz static void twl6040_vibra_set_effect(struct vibra_info *info)
145cc697d38SMisael Lopez Cruz {
146cc697d38SMisael Lopez Cruz struct twl6040 *twl6040 = info->twl6040;
147cc697d38SMisael Lopez Cruz u8 vibdatl, vibdatr;
148cc697d38SMisael Lopez Cruz int volt;
149cc697d38SMisael Lopez Cruz
150cc697d38SMisael Lopez Cruz /* weak motor */
151cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[0].consumer) / 1000;
152cc697d38SMisael Lopez Cruz vibdatl = twl6040_vibra_code(volt, info->vibldrv_res,
153cc697d38SMisael Lopez Cruz info->viblmotor_res,
154cc697d38SMisael Lopez Cruz info->weak_speed, info->direction);
155cc697d38SMisael Lopez Cruz
156cc697d38SMisael Lopez Cruz /* strong motor */
157cc697d38SMisael Lopez Cruz volt = regulator_get_voltage(info->supplies[1].consumer) / 1000;
158cc697d38SMisael Lopez Cruz vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res,
159cc697d38SMisael Lopez Cruz info->vibrmotor_res,
160cc697d38SMisael Lopez Cruz info->strong_speed, info->direction);
161cc697d38SMisael Lopez Cruz
162cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl);
163cc697d38SMisael Lopez Cruz twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr);
164cc697d38SMisael Lopez Cruz }
165cc697d38SMisael Lopez Cruz
vibra_play_work(struct work_struct * work)166cc697d38SMisael Lopez Cruz static void vibra_play_work(struct work_struct *work)
167cc697d38SMisael Lopez Cruz {
168cc697d38SMisael Lopez Cruz struct vibra_info *info = container_of(work,
169cc697d38SMisael Lopez Cruz struct vibra_info, play_work);
17028a994faSH. Nikolaus Schaller int ret;
17128a994faSH. Nikolaus Schaller
17228a994faSH. Nikolaus Schaller /* Do not allow effect, while the routing is set to use audio */
17328a994faSH. Nikolaus Schaller ret = twl6040_get_vibralr_status(info->twl6040);
17428a994faSH. Nikolaus Schaller if (ret & TWL6040_VIBSEL) {
17528a994faSH. Nikolaus Schaller dev_info(info->dev, "Vibra is configured for audio\n");
17628a994faSH. Nikolaus Schaller return;
17728a994faSH. Nikolaus Schaller }
178cc697d38SMisael Lopez Cruz
179cc697d38SMisael Lopez Cruz if (info->weak_speed || info->strong_speed) {
180cc697d38SMisael Lopez Cruz if (!info->enabled)
181cc697d38SMisael Lopez Cruz twl6040_vibra_enable(info);
182cc697d38SMisael Lopez Cruz
183cc697d38SMisael Lopez Cruz twl6040_vibra_set_effect(info);
184cc697d38SMisael Lopez Cruz } else if (info->enabled)
185cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info);
186cc697d38SMisael Lopez Cruz
187cc697d38SMisael Lopez Cruz }
188cc697d38SMisael Lopez Cruz
vibra_play(struct input_dev * input,void * data,struct ff_effect * effect)189cc697d38SMisael Lopez Cruz static int vibra_play(struct input_dev *input, void *data,
190cc697d38SMisael Lopez Cruz struct ff_effect *effect)
191cc697d38SMisael Lopez Cruz {
192cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input);
1935f07c32eSPeter Ujfalusi
194cc697d38SMisael Lopez Cruz info->weak_speed = effect->u.rumble.weak_magnitude;
195cc697d38SMisael Lopez Cruz info->strong_speed = effect->u.rumble.strong_magnitude;
196cc697d38SMisael Lopez Cruz info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
197cc697d38SMisael Lopez Cruz
1985f7fb6f1SH. Nikolaus Schaller schedule_work(&info->play_work);
199cc697d38SMisael Lopez Cruz
200cc697d38SMisael Lopez Cruz return 0;
201cc697d38SMisael Lopez Cruz }
202cc697d38SMisael Lopez Cruz
twl6040_vibra_close(struct input_dev * input)203cc697d38SMisael Lopez Cruz static void twl6040_vibra_close(struct input_dev *input)
204cc697d38SMisael Lopez Cruz {
205cc697d38SMisael Lopez Cruz struct vibra_info *info = input_get_drvdata(input);
206cc697d38SMisael Lopez Cruz
207cc697d38SMisael Lopez Cruz cancel_work_sync(&info->play_work);
208cc697d38SMisael Lopez Cruz
209cc697d38SMisael Lopez Cruz if (info->enabled)
210cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info);
211cc697d38SMisael Lopez Cruz }
212cc697d38SMisael Lopez Cruz
twl6040_vibra_suspend(struct device * dev)213*c7d8ba38SJonathan Cameron static int twl6040_vibra_suspend(struct device *dev)
214cc697d38SMisael Lopez Cruz {
215cc697d38SMisael Lopez Cruz struct platform_device *pdev = to_platform_device(dev);
216cc697d38SMisael Lopez Cruz struct vibra_info *info = platform_get_drvdata(pdev);
217cc697d38SMisael Lopez Cruz
2189e4cc255SH. Nikolaus Schaller cancel_work_sync(&info->play_work);
219cc697d38SMisael Lopez Cruz
220cc697d38SMisael Lopez Cruz if (info->enabled)
221cc697d38SMisael Lopez Cruz twl6040_vibra_disable(info);
222cc697d38SMisael Lopez Cruz
223cc697d38SMisael Lopez Cruz return 0;
224cc697d38SMisael Lopez Cruz }
225cc697d38SMisael Lopez Cruz
226*c7d8ba38SJonathan Cameron static DEFINE_SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops,
227*c7d8ba38SJonathan Cameron twl6040_vibra_suspend, NULL);
228cc697d38SMisael Lopez Cruz
twl6040_vibra_probe(struct platform_device * pdev)2295298cc4cSBill Pemberton static int twl6040_vibra_probe(struct platform_device *pdev)
230cc697d38SMisael Lopez Cruz {
231e7ec014aSPeter Ujfalusi struct device *twl6040_core_dev = pdev->dev.parent;
23232e573c4SDmitry Torokhov struct device_node *twl6040_core_node;
233cc697d38SMisael Lopez Cruz struct vibra_info *info;
2349ac7b1a3SPeter Ujfalusi int vddvibl_uV = 0;
2359ac7b1a3SPeter Ujfalusi int vddvibr_uV = 0;
2361f9e1470SFabio Estevam int error;
237cc697d38SMisael Lopez Cruz
238dcaf12a8SJohan Hovold twl6040_core_node = of_get_child_by_name(twl6040_core_dev->of_node,
239e7ec014aSPeter Ujfalusi "vibra");
2407bf2a98aSPeter Ujfalusi if (!twl6040_core_node) {
2417bf2a98aSPeter Ujfalusi dev_err(&pdev->dev, "parent of node is missing?\n");
242cc697d38SMisael Lopez Cruz return -EINVAL;
243cc697d38SMisael Lopez Cruz }
244cc697d38SMisael Lopez Cruz
245b2ebcc1bSPeter Ujfalusi info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
246cc697d38SMisael Lopez Cruz if (!info) {
247f048dd17SLibo Chen of_node_put(twl6040_core_node);
248cc697d38SMisael Lopez Cruz dev_err(&pdev->dev, "couldn't allocate memory\n");
249cc697d38SMisael Lopez Cruz return -ENOMEM;
250cc697d38SMisael Lopez Cruz }
251cc697d38SMisael Lopez Cruz
252cc697d38SMisael Lopez Cruz info->dev = &pdev->dev;
2539ac7b1a3SPeter Ujfalusi
254cc697d38SMisael Lopez Cruz info->twl6040 = dev_get_drvdata(pdev->dev.parent);
2557bf2a98aSPeter Ujfalusi
256e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibldrv-res",
257e7ec014aSPeter Ujfalusi &info->vibldrv_res);
258e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrdrv-res",
259e7ec014aSPeter Ujfalusi &info->vibrdrv_res);
260e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,viblmotor-res",
2619ac7b1a3SPeter Ujfalusi &info->viblmotor_res);
262e7ec014aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vibrmotor-res",
2639ac7b1a3SPeter Ujfalusi &info->vibrmotor_res);
2647bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibl-uV", &vddvibl_uV);
2657bf2a98aSPeter Ujfalusi of_property_read_u32(twl6040_core_node, "ti,vddvibr-uV", &vddvibr_uV);
2669ac7b1a3SPeter Ujfalusi
267f048dd17SLibo Chen of_node_put(twl6040_core_node);
268f048dd17SLibo Chen
269cc697d38SMisael Lopez Cruz if ((!info->vibldrv_res && !info->viblmotor_res) ||
270cc697d38SMisael Lopez Cruz (!info->vibrdrv_res && !info->vibrmotor_res)) {
271cc697d38SMisael Lopez Cruz dev_err(info->dev, "invalid vibra driver/motor resistance\n");
272b2ebcc1bSPeter Ujfalusi return -EINVAL;
273cc697d38SMisael Lopez Cruz }
274cc697d38SMisael Lopez Cruz
275625cbe46SPeter Ujfalusi info->irq = platform_get_irq(pdev, 0);
2760bec8b7eSStephen Boyd if (info->irq < 0)
277b2ebcc1bSPeter Ujfalusi return -EINVAL;
278625cbe46SPeter Ujfalusi
2791f9e1470SFabio Estevam error = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
2804be01a29SFabio Estevam twl6040_vib_irq_handler,
2814be01a29SFabio Estevam IRQF_ONESHOT,
282b2ebcc1bSPeter Ujfalusi "twl6040_irq_vib", info);
2831f9e1470SFabio Estevam if (error) {
2841f9e1470SFabio Estevam dev_err(info->dev, "VIB IRQ request failed: %d\n", error);
2851f9e1470SFabio Estevam return error;
286b2ebcc1bSPeter Ujfalusi }
287b2ebcc1bSPeter Ujfalusi
288b2ebcc1bSPeter Ujfalusi info->supplies[0].supply = "vddvibl";
289b2ebcc1bSPeter Ujfalusi info->supplies[1].supply = "vddvibr";
290b2ebcc1bSPeter Ujfalusi /*
291b2ebcc1bSPeter Ujfalusi * When booted with Device tree the regulators are attached to the
292b2ebcc1bSPeter Ujfalusi * parent device (twl6040 MFD core)
293b2ebcc1bSPeter Ujfalusi */
2941f9e1470SFabio Estevam error = devm_regulator_bulk_get(twl6040_core_dev,
2951f9e1470SFabio Estevam ARRAY_SIZE(info->supplies),
2967bf2a98aSPeter Ujfalusi info->supplies);
2971f9e1470SFabio Estevam if (error) {
2981f9e1470SFabio Estevam dev_err(info->dev, "couldn't get regulators %d\n", error);
2991f9e1470SFabio Estevam return error;
300b2ebcc1bSPeter Ujfalusi }
301b2ebcc1bSPeter Ujfalusi
302b2ebcc1bSPeter Ujfalusi if (vddvibl_uV) {
3031f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[0].consumer,
304b2ebcc1bSPeter Ujfalusi vddvibl_uV, vddvibl_uV);
3051f9e1470SFabio Estevam if (error) {
306b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
3071f9e1470SFabio Estevam error);
3081f9e1470SFabio Estevam return error;
309b2ebcc1bSPeter Ujfalusi }
310b2ebcc1bSPeter Ujfalusi }
311b2ebcc1bSPeter Ujfalusi
312b2ebcc1bSPeter Ujfalusi if (vddvibr_uV) {
3131f9e1470SFabio Estevam error = regulator_set_voltage(info->supplies[1].consumer,
314b2ebcc1bSPeter Ujfalusi vddvibr_uV, vddvibr_uV);
3151f9e1470SFabio Estevam if (error) {
316b2ebcc1bSPeter Ujfalusi dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
3171f9e1470SFabio Estevam error);
3181f9e1470SFabio Estevam return error;
319b2ebcc1bSPeter Ujfalusi }
320b2ebcc1bSPeter Ujfalusi }
321b2ebcc1bSPeter Ujfalusi
322b2ebcc1bSPeter Ujfalusi INIT_WORK(&info->play_work, vibra_play_work);
323b2ebcc1bSPeter Ujfalusi
3241f9e1470SFabio Estevam info->input_dev = devm_input_allocate_device(&pdev->dev);
3251f9e1470SFabio Estevam if (!info->input_dev) {
326cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't allocate input device\n");
3271f9e1470SFabio Estevam return -ENOMEM;
328cc697d38SMisael Lopez Cruz }
329cc697d38SMisael Lopez Cruz
330cc697d38SMisael Lopez Cruz input_set_drvdata(info->input_dev, info);
331cc697d38SMisael Lopez Cruz
332cc697d38SMisael Lopez Cruz info->input_dev->name = "twl6040:vibrator";
333cc697d38SMisael Lopez Cruz info->input_dev->id.version = 1;
334cc697d38SMisael Lopez Cruz info->input_dev->close = twl6040_vibra_close;
335cc697d38SMisael Lopez Cruz __set_bit(FF_RUMBLE, info->input_dev->ffbit);
336cc697d38SMisael Lopez Cruz
3371f9e1470SFabio Estevam error = input_ff_create_memless(info->input_dev, NULL, vibra_play);
3381f9e1470SFabio Estevam if (error) {
339cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register vibrator to FF\n");
3401f9e1470SFabio Estevam return error;
341cc697d38SMisael Lopez Cruz }
342cc697d38SMisael Lopez Cruz
3431f9e1470SFabio Estevam error = input_register_device(info->input_dev);
3441f9e1470SFabio Estevam if (error) {
345cc697d38SMisael Lopez Cruz dev_err(info->dev, "couldn't register input device\n");
3461f9e1470SFabio Estevam return error;
347cc697d38SMisael Lopez Cruz }
348cc697d38SMisael Lopez Cruz
349cc697d38SMisael Lopez Cruz platform_set_drvdata(pdev, info);
350cc697d38SMisael Lopez Cruz
351cc697d38SMisael Lopez Cruz return 0;
352cc697d38SMisael Lopez Cruz }
353cc697d38SMisael Lopez Cruz
354cc697d38SMisael Lopez Cruz static struct platform_driver twl6040_vibra_driver = {
355cc697d38SMisael Lopez Cruz .probe = twl6040_vibra_probe,
356cc697d38SMisael Lopez Cruz .driver = {
357cc697d38SMisael Lopez Cruz .name = "twl6040-vibra",
358*c7d8ba38SJonathan Cameron .pm = pm_sleep_ptr(&twl6040_vibra_pm_ops),
359cc697d38SMisael Lopez Cruz },
360cc697d38SMisael Lopez Cruz };
361840a746bSJJ Ding module_platform_driver(twl6040_vibra_driver);
362cc697d38SMisael Lopez Cruz
363cc697d38SMisael Lopez Cruz MODULE_ALIAS("platform:twl6040-vibra");
364cc697d38SMisael Lopez Cruz MODULE_DESCRIPTION("TWL6040 Vibra driver");
365cc697d38SMisael Lopez Cruz MODULE_LICENSE("GPL");
366cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
367cc697d38SMisael Lopez Cruz MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
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