1a23ba3c0SMarkuss Broks // SPDX-License-Identifier: GPL-2.0-only 2a23ba3c0SMarkuss Broks 3a23ba3c0SMarkuss Broks #include <linux/bits.h> 4a23ba3c0SMarkuss Broks #include <linux/delay.h> 5a23ba3c0SMarkuss Broks #include <linux/i2c.h> 6a23ba3c0SMarkuss Broks #include <linux/input.h> 7a23ba3c0SMarkuss Broks #include <linux/input/mt.h> 8a23ba3c0SMarkuss Broks #include <linux/input/touchscreen.h> 9a23ba3c0SMarkuss Broks #include <linux/kernel.h> 10a23ba3c0SMarkuss Broks #include <linux/module.h> 11a23ba3c0SMarkuss Broks #include <linux/property.h> 12a23ba3c0SMarkuss Broks #include <linux/regulator/consumer.h> 13a23ba3c0SMarkuss Broks 14a23ba3c0SMarkuss Broks #define IST3038C_HIB_ACCESS (0x800B << 16) 15a23ba3c0SMarkuss Broks #define IST3038C_DIRECT_ACCESS BIT(31) 16a23ba3c0SMarkuss Broks #define IST3038C_REG_CHIPID 0x40001000 17a23ba3c0SMarkuss Broks #define IST3038C_REG_HIB_BASE 0x30000100 18a23ba3c0SMarkuss Broks #define IST3038C_REG_TOUCH_STATUS (IST3038C_REG_HIB_BASE | IST3038C_HIB_ACCESS) 19a23ba3c0SMarkuss Broks #define IST3038C_REG_TOUCH_COORD (IST3038C_REG_HIB_BASE | IST3038C_HIB_ACCESS | 0x8) 20a23ba3c0SMarkuss Broks #define IST3038C_REG_INTR_MESSAGE (IST3038C_REG_HIB_BASE | IST3038C_HIB_ACCESS | 0x4) 21a23ba3c0SMarkuss Broks #define IST3038C_WHOAMI 0x38c 22a23ba3c0SMarkuss Broks #define IST3038C_CHIP_ON_DELAY_MS 60 23a23ba3c0SMarkuss Broks #define IST3038C_I2C_RETRY_COUNT 3 24a23ba3c0SMarkuss Broks #define IST3038C_MAX_FINGER_NUM 10 25a23ba3c0SMarkuss Broks #define IST3038C_X_MASK GENMASK(23, 12) 26a23ba3c0SMarkuss Broks #define IST3038C_X_SHIFT 12 27a23ba3c0SMarkuss Broks #define IST3038C_Y_MASK GENMASK(11, 0) 28a23ba3c0SMarkuss Broks #define IST3038C_AREA_MASK GENMASK(27, 24) 29a23ba3c0SMarkuss Broks #define IST3038C_AREA_SHIFT 24 30a23ba3c0SMarkuss Broks #define IST3038C_FINGER_COUNT_MASK GENMASK(15, 12) 31a23ba3c0SMarkuss Broks #define IST3038C_FINGER_COUNT_SHIFT 12 32a23ba3c0SMarkuss Broks #define IST3038C_FINGER_STATUS_MASK GENMASK(9, 0) 33a23ba3c0SMarkuss Broks 34a23ba3c0SMarkuss Broks struct imagis_ts { 35a23ba3c0SMarkuss Broks struct i2c_client *client; 36a23ba3c0SMarkuss Broks struct input_dev *input_dev; 37a23ba3c0SMarkuss Broks struct touchscreen_properties prop; 38a23ba3c0SMarkuss Broks struct regulator_bulk_data supplies[2]; 39a23ba3c0SMarkuss Broks }; 40a23ba3c0SMarkuss Broks 41a23ba3c0SMarkuss Broks static int imagis_i2c_read_reg(struct imagis_ts *ts, 42a23ba3c0SMarkuss Broks unsigned int reg, u32 *data) 43a23ba3c0SMarkuss Broks { 44a23ba3c0SMarkuss Broks __be32 ret_be; 45a23ba3c0SMarkuss Broks __be32 reg_be = cpu_to_be32(reg); 46a23ba3c0SMarkuss Broks struct i2c_msg msg[] = { 47a23ba3c0SMarkuss Broks { 48a23ba3c0SMarkuss Broks .addr = ts->client->addr, 49a23ba3c0SMarkuss Broks .flags = 0, 50a23ba3c0SMarkuss Broks .buf = (unsigned char *)®_be, 51a23ba3c0SMarkuss Broks .len = sizeof(reg_be), 52a23ba3c0SMarkuss Broks }, { 53a23ba3c0SMarkuss Broks .addr = ts->client->addr, 54a23ba3c0SMarkuss Broks .flags = I2C_M_RD, 55a23ba3c0SMarkuss Broks .buf = (unsigned char *)&ret_be, 56a23ba3c0SMarkuss Broks .len = sizeof(ret_be), 57a23ba3c0SMarkuss Broks }, 58a23ba3c0SMarkuss Broks }; 59a23ba3c0SMarkuss Broks int ret, error; 60a23ba3c0SMarkuss Broks int retry = IST3038C_I2C_RETRY_COUNT; 61a23ba3c0SMarkuss Broks 62a23ba3c0SMarkuss Broks /* Retry in case the controller fails to respond */ 63a23ba3c0SMarkuss Broks do { 64a23ba3c0SMarkuss Broks ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg)); 65a23ba3c0SMarkuss Broks if (ret == ARRAY_SIZE(msg)) { 66a23ba3c0SMarkuss Broks *data = be32_to_cpu(ret_be); 67a23ba3c0SMarkuss Broks return 0; 68a23ba3c0SMarkuss Broks } 69a23ba3c0SMarkuss Broks 70a23ba3c0SMarkuss Broks error = ret < 0 ? ret : -EIO; 71a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 72a23ba3c0SMarkuss Broks "%s - i2c_transfer failed: %d (%d)\n", 73a23ba3c0SMarkuss Broks __func__, error, ret); 74a23ba3c0SMarkuss Broks } while (--retry); 75a23ba3c0SMarkuss Broks 76a23ba3c0SMarkuss Broks return error; 77a23ba3c0SMarkuss Broks } 78a23ba3c0SMarkuss Broks 79a23ba3c0SMarkuss Broks static irqreturn_t imagis_interrupt(int irq, void *dev_id) 80a23ba3c0SMarkuss Broks { 81a23ba3c0SMarkuss Broks struct imagis_ts *ts = dev_id; 82a23ba3c0SMarkuss Broks u32 intr_message, finger_status; 83a23ba3c0SMarkuss Broks unsigned int finger_count, finger_pressed; 84a23ba3c0SMarkuss Broks int i; 85a23ba3c0SMarkuss Broks int error; 86a23ba3c0SMarkuss Broks 87a23ba3c0SMarkuss Broks error = imagis_i2c_read_reg(ts, IST3038C_REG_INTR_MESSAGE, 88a23ba3c0SMarkuss Broks &intr_message); 89a23ba3c0SMarkuss Broks if (error) { 90a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 91a23ba3c0SMarkuss Broks "failed to read the interrupt message: %d\n", error); 92a23ba3c0SMarkuss Broks goto out; 93a23ba3c0SMarkuss Broks } 94a23ba3c0SMarkuss Broks 95a23ba3c0SMarkuss Broks finger_count = (intr_message & IST3038C_FINGER_COUNT_MASK) >> 96a23ba3c0SMarkuss Broks IST3038C_FINGER_COUNT_SHIFT; 97a23ba3c0SMarkuss Broks if (finger_count > IST3038C_MAX_FINGER_NUM) { 98a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 99a23ba3c0SMarkuss Broks "finger count %d is more than maximum supported\n", 100a23ba3c0SMarkuss Broks finger_count); 101a23ba3c0SMarkuss Broks goto out; 102a23ba3c0SMarkuss Broks } 103a23ba3c0SMarkuss Broks 104a23ba3c0SMarkuss Broks finger_pressed = intr_message & IST3038C_FINGER_STATUS_MASK; 105a23ba3c0SMarkuss Broks 106a23ba3c0SMarkuss Broks for (i = 0; i < finger_count; i++) { 107a23ba3c0SMarkuss Broks error = imagis_i2c_read_reg(ts, 108a23ba3c0SMarkuss Broks IST3038C_REG_TOUCH_COORD + (i * 4), 109a23ba3c0SMarkuss Broks &finger_status); 110a23ba3c0SMarkuss Broks if (error) { 111a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 112a23ba3c0SMarkuss Broks "failed to read coordinates for finger %d: %d\n", 113a23ba3c0SMarkuss Broks i, error); 114a23ba3c0SMarkuss Broks goto out; 115a23ba3c0SMarkuss Broks } 116a23ba3c0SMarkuss Broks 117a23ba3c0SMarkuss Broks input_mt_slot(ts->input_dev, i); 118a23ba3c0SMarkuss Broks input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, 119a23ba3c0SMarkuss Broks finger_pressed & BIT(i)); 120a23ba3c0SMarkuss Broks touchscreen_report_pos(ts->input_dev, &ts->prop, 121a23ba3c0SMarkuss Broks (finger_status & IST3038C_X_MASK) >> 122a23ba3c0SMarkuss Broks IST3038C_X_SHIFT, 123a23ba3c0SMarkuss Broks finger_status & IST3038C_Y_MASK, 1); 124a23ba3c0SMarkuss Broks input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 125a23ba3c0SMarkuss Broks (finger_status & IST3038C_AREA_MASK) >> 126a23ba3c0SMarkuss Broks IST3038C_AREA_SHIFT); 127a23ba3c0SMarkuss Broks } 128a23ba3c0SMarkuss Broks 129a23ba3c0SMarkuss Broks input_mt_sync_frame(ts->input_dev); 130a23ba3c0SMarkuss Broks input_sync(ts->input_dev); 131a23ba3c0SMarkuss Broks 132a23ba3c0SMarkuss Broks out: 133a23ba3c0SMarkuss Broks return IRQ_HANDLED; 134a23ba3c0SMarkuss Broks } 135a23ba3c0SMarkuss Broks 136a23ba3c0SMarkuss Broks static void imagis_power_off(void *_ts) 137a23ba3c0SMarkuss Broks { 138a23ba3c0SMarkuss Broks struct imagis_ts *ts = _ts; 139a23ba3c0SMarkuss Broks 140a23ba3c0SMarkuss Broks regulator_bulk_disable(ARRAY_SIZE(ts->supplies), ts->supplies); 141a23ba3c0SMarkuss Broks } 142a23ba3c0SMarkuss Broks 143a23ba3c0SMarkuss Broks static int imagis_power_on(struct imagis_ts *ts) 144a23ba3c0SMarkuss Broks { 145a23ba3c0SMarkuss Broks int error; 146a23ba3c0SMarkuss Broks 147a23ba3c0SMarkuss Broks error = regulator_bulk_enable(ARRAY_SIZE(ts->supplies), ts->supplies); 148a23ba3c0SMarkuss Broks if (error) 149a23ba3c0SMarkuss Broks return error; 150a23ba3c0SMarkuss Broks 151a23ba3c0SMarkuss Broks msleep(IST3038C_CHIP_ON_DELAY_MS); 152a23ba3c0SMarkuss Broks 153a23ba3c0SMarkuss Broks return 0; 154a23ba3c0SMarkuss Broks } 155a23ba3c0SMarkuss Broks 156a23ba3c0SMarkuss Broks static int imagis_start(struct imagis_ts *ts) 157a23ba3c0SMarkuss Broks { 158a23ba3c0SMarkuss Broks int error; 159a23ba3c0SMarkuss Broks 160a23ba3c0SMarkuss Broks error = imagis_power_on(ts); 161a23ba3c0SMarkuss Broks if (error) 162a23ba3c0SMarkuss Broks return error; 163a23ba3c0SMarkuss Broks 164a23ba3c0SMarkuss Broks enable_irq(ts->client->irq); 165a23ba3c0SMarkuss Broks 166a23ba3c0SMarkuss Broks return 0; 167a23ba3c0SMarkuss Broks } 168a23ba3c0SMarkuss Broks 169a23ba3c0SMarkuss Broks static int imagis_stop(struct imagis_ts *ts) 170a23ba3c0SMarkuss Broks { 171a23ba3c0SMarkuss Broks disable_irq(ts->client->irq); 172a23ba3c0SMarkuss Broks 173a23ba3c0SMarkuss Broks imagis_power_off(ts); 174a23ba3c0SMarkuss Broks 175a23ba3c0SMarkuss Broks return 0; 176a23ba3c0SMarkuss Broks } 177a23ba3c0SMarkuss Broks 178a23ba3c0SMarkuss Broks static int imagis_input_open(struct input_dev *dev) 179a23ba3c0SMarkuss Broks { 180a23ba3c0SMarkuss Broks struct imagis_ts *ts = input_get_drvdata(dev); 181a23ba3c0SMarkuss Broks 182a23ba3c0SMarkuss Broks return imagis_start(ts); 183a23ba3c0SMarkuss Broks } 184a23ba3c0SMarkuss Broks 185a23ba3c0SMarkuss Broks static void imagis_input_close(struct input_dev *dev) 186a23ba3c0SMarkuss Broks { 187a23ba3c0SMarkuss Broks struct imagis_ts *ts = input_get_drvdata(dev); 188a23ba3c0SMarkuss Broks 189a23ba3c0SMarkuss Broks imagis_stop(ts); 190a23ba3c0SMarkuss Broks } 191a23ba3c0SMarkuss Broks 192a23ba3c0SMarkuss Broks static int imagis_init_input_dev(struct imagis_ts *ts) 193a23ba3c0SMarkuss Broks { 194a23ba3c0SMarkuss Broks struct input_dev *input_dev; 195a23ba3c0SMarkuss Broks int error; 196a23ba3c0SMarkuss Broks 197a23ba3c0SMarkuss Broks input_dev = devm_input_allocate_device(&ts->client->dev); 198a23ba3c0SMarkuss Broks if (!input_dev) 199a23ba3c0SMarkuss Broks return -ENOMEM; 200a23ba3c0SMarkuss Broks 201a23ba3c0SMarkuss Broks ts->input_dev = input_dev; 202a23ba3c0SMarkuss Broks 203a23ba3c0SMarkuss Broks input_dev->name = "Imagis capacitive touchscreen"; 204a23ba3c0SMarkuss Broks input_dev->phys = "input/ts"; 205a23ba3c0SMarkuss Broks input_dev->id.bustype = BUS_I2C; 206a23ba3c0SMarkuss Broks input_dev->open = imagis_input_open; 207a23ba3c0SMarkuss Broks input_dev->close = imagis_input_close; 208a23ba3c0SMarkuss Broks 209a23ba3c0SMarkuss Broks input_set_drvdata(input_dev, ts); 210a23ba3c0SMarkuss Broks 211a23ba3c0SMarkuss Broks input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X); 212a23ba3c0SMarkuss Broks input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y); 21344723bd4SMarkuss Broks input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, 16, 0, 0); 214a23ba3c0SMarkuss Broks 215a23ba3c0SMarkuss Broks touchscreen_parse_properties(input_dev, true, &ts->prop); 216a23ba3c0SMarkuss Broks if (!ts->prop.max_x || !ts->prop.max_y) { 217a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 218a23ba3c0SMarkuss Broks "Touchscreen-size-x and/or touchscreen-size-y not set in dts\n"); 219a23ba3c0SMarkuss Broks return -EINVAL; 220a23ba3c0SMarkuss Broks } 221a23ba3c0SMarkuss Broks 222a23ba3c0SMarkuss Broks error = input_mt_init_slots(input_dev, 223a23ba3c0SMarkuss Broks IST3038C_MAX_FINGER_NUM, 224a23ba3c0SMarkuss Broks INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); 225a23ba3c0SMarkuss Broks if (error) { 226a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 227a23ba3c0SMarkuss Broks "Failed to initialize MT slots: %d", error); 228a23ba3c0SMarkuss Broks return error; 229a23ba3c0SMarkuss Broks } 230a23ba3c0SMarkuss Broks 231a23ba3c0SMarkuss Broks error = input_register_device(input_dev); 232a23ba3c0SMarkuss Broks if (error) { 233a23ba3c0SMarkuss Broks dev_err(&ts->client->dev, 234a23ba3c0SMarkuss Broks "Failed to register input device: %d", error); 235a23ba3c0SMarkuss Broks return error; 236a23ba3c0SMarkuss Broks } 237a23ba3c0SMarkuss Broks 238a23ba3c0SMarkuss Broks return 0; 239a23ba3c0SMarkuss Broks } 240a23ba3c0SMarkuss Broks 241a23ba3c0SMarkuss Broks static int imagis_init_regulators(struct imagis_ts *ts) 242a23ba3c0SMarkuss Broks { 243a23ba3c0SMarkuss Broks struct i2c_client *client = ts->client; 244a23ba3c0SMarkuss Broks 245a23ba3c0SMarkuss Broks ts->supplies[0].supply = "vdd"; 246a23ba3c0SMarkuss Broks ts->supplies[1].supply = "vddio"; 247a23ba3c0SMarkuss Broks return devm_regulator_bulk_get(&client->dev, 248a23ba3c0SMarkuss Broks ARRAY_SIZE(ts->supplies), 249a23ba3c0SMarkuss Broks ts->supplies); 250a23ba3c0SMarkuss Broks } 251a23ba3c0SMarkuss Broks 252a23ba3c0SMarkuss Broks static int imagis_probe(struct i2c_client *i2c) 253a23ba3c0SMarkuss Broks { 254a23ba3c0SMarkuss Broks struct device *dev = &i2c->dev; 255a23ba3c0SMarkuss Broks struct imagis_ts *ts; 256a23ba3c0SMarkuss Broks int chip_id, error; 257a23ba3c0SMarkuss Broks 258a23ba3c0SMarkuss Broks ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL); 259a23ba3c0SMarkuss Broks if (!ts) 260a23ba3c0SMarkuss Broks return -ENOMEM; 261a23ba3c0SMarkuss Broks 262a23ba3c0SMarkuss Broks ts->client = i2c; 263a23ba3c0SMarkuss Broks 264a23ba3c0SMarkuss Broks error = imagis_init_regulators(ts); 265a23ba3c0SMarkuss Broks if (error) { 266a23ba3c0SMarkuss Broks dev_err(dev, "regulator init error: %d\n", error); 267a23ba3c0SMarkuss Broks return error; 268a23ba3c0SMarkuss Broks } 269a23ba3c0SMarkuss Broks 270a23ba3c0SMarkuss Broks error = imagis_power_on(ts); 271a23ba3c0SMarkuss Broks if (error) { 272a23ba3c0SMarkuss Broks dev_err(dev, "failed to enable regulators: %d\n", error); 273a23ba3c0SMarkuss Broks return error; 274a23ba3c0SMarkuss Broks } 275a23ba3c0SMarkuss Broks 276a23ba3c0SMarkuss Broks error = devm_add_action_or_reset(dev, imagis_power_off, ts); 277a23ba3c0SMarkuss Broks if (error) { 278a23ba3c0SMarkuss Broks dev_err(dev, "failed to install poweroff action: %d\n", error); 279a23ba3c0SMarkuss Broks return error; 280a23ba3c0SMarkuss Broks } 281a23ba3c0SMarkuss Broks 282a23ba3c0SMarkuss Broks error = imagis_i2c_read_reg(ts, 283a23ba3c0SMarkuss Broks IST3038C_REG_CHIPID | IST3038C_DIRECT_ACCESS, 284a23ba3c0SMarkuss Broks &chip_id); 285a23ba3c0SMarkuss Broks if (error) { 286a23ba3c0SMarkuss Broks dev_err(dev, "chip ID read failure: %d\n", error); 287a23ba3c0SMarkuss Broks return error; 288a23ba3c0SMarkuss Broks } 289a23ba3c0SMarkuss Broks 290a23ba3c0SMarkuss Broks if (chip_id != IST3038C_WHOAMI) { 291a23ba3c0SMarkuss Broks dev_err(dev, "unknown chip ID: 0x%x\n", chip_id); 292a23ba3c0SMarkuss Broks return -EINVAL; 293a23ba3c0SMarkuss Broks } 294a23ba3c0SMarkuss Broks 295a23ba3c0SMarkuss Broks error = devm_request_threaded_irq(dev, i2c->irq, 296a23ba3c0SMarkuss Broks NULL, imagis_interrupt, 297a23ba3c0SMarkuss Broks IRQF_ONESHOT | IRQF_NO_AUTOEN, 298a23ba3c0SMarkuss Broks "imagis-touchscreen", ts); 299a23ba3c0SMarkuss Broks if (error) { 300a23ba3c0SMarkuss Broks dev_err(dev, "IRQ %d allocation failure: %d\n", 301a23ba3c0SMarkuss Broks i2c->irq, error); 302a23ba3c0SMarkuss Broks return error; 303a23ba3c0SMarkuss Broks } 304a23ba3c0SMarkuss Broks 305a23ba3c0SMarkuss Broks error = imagis_init_input_dev(ts); 306a23ba3c0SMarkuss Broks if (error) 307a23ba3c0SMarkuss Broks return error; 308a23ba3c0SMarkuss Broks 309a23ba3c0SMarkuss Broks return 0; 310a23ba3c0SMarkuss Broks } 311a23ba3c0SMarkuss Broks 312a9b11330SJonathan Cameron static int imagis_suspend(struct device *dev) 313a23ba3c0SMarkuss Broks { 314a23ba3c0SMarkuss Broks struct i2c_client *client = to_i2c_client(dev); 315a23ba3c0SMarkuss Broks struct imagis_ts *ts = i2c_get_clientdata(client); 316a23ba3c0SMarkuss Broks int retval = 0; 317a23ba3c0SMarkuss Broks 318a23ba3c0SMarkuss Broks mutex_lock(&ts->input_dev->mutex); 319a23ba3c0SMarkuss Broks 320a23ba3c0SMarkuss Broks if (input_device_enabled(ts->input_dev)) 321a23ba3c0SMarkuss Broks retval = imagis_stop(ts); 322a23ba3c0SMarkuss Broks 323a23ba3c0SMarkuss Broks mutex_unlock(&ts->input_dev->mutex); 324a23ba3c0SMarkuss Broks 325a23ba3c0SMarkuss Broks return retval; 326a23ba3c0SMarkuss Broks } 327a23ba3c0SMarkuss Broks 328a9b11330SJonathan Cameron static int imagis_resume(struct device *dev) 329a23ba3c0SMarkuss Broks { 330a23ba3c0SMarkuss Broks struct i2c_client *client = to_i2c_client(dev); 331a23ba3c0SMarkuss Broks struct imagis_ts *ts = i2c_get_clientdata(client); 332a23ba3c0SMarkuss Broks int retval = 0; 333a23ba3c0SMarkuss Broks 334a23ba3c0SMarkuss Broks mutex_lock(&ts->input_dev->mutex); 335a23ba3c0SMarkuss Broks 336a23ba3c0SMarkuss Broks if (input_device_enabled(ts->input_dev)) 337a23ba3c0SMarkuss Broks retval = imagis_start(ts); 338a23ba3c0SMarkuss Broks 339a23ba3c0SMarkuss Broks mutex_unlock(&ts->input_dev->mutex); 340a23ba3c0SMarkuss Broks 341a23ba3c0SMarkuss Broks return retval; 342a23ba3c0SMarkuss Broks } 343a23ba3c0SMarkuss Broks 344a9b11330SJonathan Cameron static DEFINE_SIMPLE_DEV_PM_OPS(imagis_pm_ops, imagis_suspend, imagis_resume); 345a23ba3c0SMarkuss Broks 346a23ba3c0SMarkuss Broks #ifdef CONFIG_OF 347a23ba3c0SMarkuss Broks static const struct of_device_id imagis_of_match[] = { 348a23ba3c0SMarkuss Broks { .compatible = "imagis,ist3038c", }, 349a23ba3c0SMarkuss Broks { }, 350a23ba3c0SMarkuss Broks }; 351a23ba3c0SMarkuss Broks MODULE_DEVICE_TABLE(of, imagis_of_match); 352a23ba3c0SMarkuss Broks #endif 353a23ba3c0SMarkuss Broks 354a23ba3c0SMarkuss Broks static struct i2c_driver imagis_ts_driver = { 355a23ba3c0SMarkuss Broks .driver = { 356a23ba3c0SMarkuss Broks .name = "imagis-touchscreen", 357a9b11330SJonathan Cameron .pm = pm_sleep_ptr(&imagis_pm_ops), 358a23ba3c0SMarkuss Broks .of_match_table = of_match_ptr(imagis_of_match), 359a23ba3c0SMarkuss Broks }, 360d8bde56dSUwe Kleine-König .probe = imagis_probe, 361a23ba3c0SMarkuss Broks }; 362a23ba3c0SMarkuss Broks 363a23ba3c0SMarkuss Broks module_i2c_driver(imagis_ts_driver); 364a23ba3c0SMarkuss Broks 365a23ba3c0SMarkuss Broks MODULE_DESCRIPTION("Imagis IST3038C Touchscreen Driver"); 366a23ba3c0SMarkuss Broks MODULE_AUTHOR("Markuss Broks <markuss.broks@gmail.com>"); 367a23ba3c0SMarkuss Broks MODULE_LICENSE("GPL"); 368