89 bool tsc2007_is_pen_down(struct tsc2007 *ts)  in tsc2007_is_pen_down()  argument
105 	if (!ts->get_pendown_state)  in tsc2007_is_pen_down()
108 	return ts->get_pendown_state(&ts->client->dev);  in tsc2007_is_pen_down()
113 	struct tsc2007 *ts = handle;  in tsc2007_soft_irq()  local
114 	struct input_dev *input = ts->input;  in tsc2007_soft_irq()
118 	while (!ts->stopped && tsc2007_is_pen_down(ts)) {  in tsc2007_soft_irq()
122 		mutex_lock(&ts->mlock);  in tsc2007_soft_irq()
123 		tsc2007_read_values(ts, &tc);  in tsc2007_soft_irq()
124 		mutex_unlock(&ts->mlock);  in tsc2007_soft_irq()
126 		rt = tsc2007_calculate_resistance(ts, &tc);  in tsc2007_soft_irq()
128 		if (!rt && !ts->get_pendown_state) {  in tsc2007_soft_irq()
137 		if (rt <= ts->max_rt) {  in tsc2007_soft_irq()
138 			dev_dbg(&ts->client->dev,  in tsc2007_soft_irq()
142 			rt = ts->max_rt - rt;  in tsc2007_soft_irq()
157 			dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);  in tsc2007_soft_irq()
160 		wait_event_timeout(ts->wait, ts->stopped, ts->poll_period);  in tsc2007_soft_irq()
163 	dev_dbg(&ts->client->dev, "UP\n");  in tsc2007_soft_irq()
169 	if (ts->clear_penirq)  in tsc2007_soft_irq()
170 		ts->clear_penirq();  in tsc2007_soft_irq()
175 static void tsc2007_stop(struct tsc2007 *ts)  in tsc2007_stop()  argument
177 	ts->stopped = true;  in tsc2007_stop()
179 	wake_up(&ts->wait);  in tsc2007_stop()
181 	disable_irq(ts->irq);  in tsc2007_stop()
186 	struct tsc2007 *ts = input_get_drvdata(input_dev);  in tsc2007_open()  local
189 	ts->stopped = false;  in tsc2007_open()
192 	enable_irq(ts->irq);  in tsc2007_open()
195 	err = tsc2007_xfer(ts, PWRDOWN);  in tsc2007_open()
197 		tsc2007_stop(ts);  in tsc2007_open()
206 	struct tsc2007 *ts = input_get_drvdata(input_dev);  in tsc2007_close()  local
208 	tsc2007_stop(ts);  in tsc2007_close()
214 	struct tsc2007 *ts = i2c_get_clientdata(client);  in tsc2007_get_pendown_state_gpio()  local
216 	return gpiod_get_value_cansleep(ts->gpiod);  in tsc2007_get_pendown_state_gpio()
219 static int tsc2007_probe_properties(struct device *dev, struct tsc2007 *ts)  in tsc2007_probe_properties()  argument
225 		ts->max_rt = val32;  in tsc2007_probe_properties()
227 		ts->max_rt = MAX_12BIT;  in tsc2007_probe_properties()
230 		ts->fuzzx = val32;  in tsc2007_probe_properties()
233 		ts->fuzzy = val32;  in tsc2007_probe_properties()
236 		ts->fuzzz = val32;  in tsc2007_probe_properties()
239 		ts->poll_period = msecs_to_jiffies(val64);  in tsc2007_probe_properties()
241 		ts->poll_period = msecs_to_jiffies(1);  in tsc2007_probe_properties()
244 		ts->x_plate_ohms = val32;  in tsc2007_probe_properties()
250 	ts->gpiod = devm_gpiod_get_optional(dev, NULL, GPIOD_IN);  in tsc2007_probe_properties()
251 	if (IS_ERR(ts->gpiod))  in tsc2007_probe_properties()
252 		return PTR_ERR(ts->gpiod);  in tsc2007_probe_properties()
254 	if (ts->gpiod)  in tsc2007_probe_properties()
255 		ts->get_pendown_state = tsc2007_get_pendown_state_gpio;  in tsc2007_probe_properties()
262 static int tsc2007_probe_pdev(struct device *dev, struct tsc2007 *ts,  in tsc2007_probe_pdev()  argument
266 	ts->model             = pdata->model;  in tsc2007_probe_pdev()
267 	ts->x_plate_ohms      = pdata->x_plate_ohms;  in tsc2007_probe_pdev()
268 	ts->max_rt            = pdata->max_rt ? : MAX_12BIT;  in tsc2007_probe_pdev()
269 	ts->poll_period       = msecs_to_jiffies(pdata->poll_period ? : 1);  in tsc2007_probe_pdev()
270 	ts->get_pendown_state = pdata->get_pendown_state;  in tsc2007_probe_pdev()
271 	ts->clear_penirq      = pdata->clear_penirq;  in tsc2007_probe_pdev()
272 	ts->fuzzx             = pdata->fuzzx;  in tsc2007_probe_pdev()
273 	ts->fuzzy             = pdata->fuzzy;  in tsc2007_probe_pdev()
274 	ts->fuzzz             = pdata->fuzzz;  in tsc2007_probe_pdev()
297 	struct tsc2007 *ts;  in tsc2007_probe()  local
305 	ts = devm_kzalloc(&client->dev, sizeof(struct tsc2007), GFP_KERNEL);  in tsc2007_probe()
306 	if (!ts)  in tsc2007_probe()
310 		err = tsc2007_probe_pdev(&client->dev, ts, pdata, id);  in tsc2007_probe()
312 		err = tsc2007_probe_properties(&client->dev, ts);  in tsc2007_probe()
320 	i2c_set_clientdata(client, ts);  in tsc2007_probe()
322 	ts->client = client;  in tsc2007_probe()
323 	ts->irq = client->irq;  in tsc2007_probe()
324 	ts->input = input_dev;  in tsc2007_probe()
326 	init_waitqueue_head(&ts->wait);  in tsc2007_probe()
327 	mutex_init(&ts->mlock);  in tsc2007_probe()
329 	snprintf(ts->phys, sizeof(ts->phys),  in tsc2007_probe()
333 	input_dev->phys = ts->phys;  in tsc2007_probe()
339 	input_set_drvdata(input_dev, ts);  in tsc2007_probe()
343 	input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, ts->fuzzx, 0);  in tsc2007_probe()
344 	input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, ts->fuzzy, 0);  in tsc2007_probe()
346 			     ts->fuzzz, 0);  in tsc2007_probe()
365 	err = devm_request_threaded_irq(&client->dev, ts->irq,  in tsc2007_probe()
368 					client->dev.driver->name, ts);  in tsc2007_probe()
371 			ts->irq, err);  in tsc2007_probe()
375 	tsc2007_stop(ts);  in tsc2007_probe()
378 	err = tsc2007_xfer(ts, PWRDOWN);  in tsc2007_probe()
392 	err =  tsc2007_iio_configure(ts);  in tsc2007_probe()