Lines Matching +full:vref +full:- +full:internal
1 // SPDX-License-Identifier: GPL-2.0-only
10 * - corgi_ts.c
11 * Copyright (C) 2004-2005 Richard Purdie
12 * - omap_ts.[hc], ads7846.h, ts_osk.c
39 * Support for ads7843 tested on Atmel at91sam926x-EK.
53 * note. The strength of filtering can be set in the board-* specific
76 * driver is used with DMA-based SPI controllers (like atmel_spi) on
77 * systems where main memory is not DMA-coherent (most non-x86 boards).
151 /* leave chip selected when we're done, for quicker re-select? */
158 /*--------------------------------------------------------------------------*/
168 #define ADS_A2A1A0_temp0 (0 << 4) /* non-differential */
169 #define ADS_A2A1A0_vbatt (2 << 4) /* non-differential */
170 #define ADS_A2A1A0_vaux (6 << 4) /* non-differential */
171 #define ADS_A2A1A0_temp1 (7 << 4) /* non-differential */
174 #define ADS_SER (1 << 2) /* non-differential */
178 #define ADS_PD10_REF_ON (2 << 0) /* vREF on + penirq */
179 #define ADS_PD10_ALL_ON (3 << 0) /* ADC + vREF on */
181 #define MAX_12BIT ((1<<12)-1)
184 #define READ_12BIT_DFR(x, adc, vref) (ADS_START | ADS_A2A1A0_d_ ## x \ argument
186 (adc ? ADS_PD10_ADC_ON : 0) | (vref ? ADS_PD10_REF_ON : 0))
188 #define READ_Y(vref) (READ_12BIT_DFR(y, 1, vref)) argument
189 #define READ_Z1(vref) (READ_12BIT_DFR(z1, 1, vref)) argument
190 #define READ_Z2(vref) (READ_12BIT_DFR(z2, 1, vref)) argument
191 #define READ_X(vref) (READ_12BIT_DFR(x, 1, vref)) argument
194 /* single-ended samples need to first power up reference voltage;
195 * we leave both ADC and VREF powered
203 /* Order commands in the most optimal way to reduce Vref switching and
205 * Measure: X; Vref: X+, X-; IN: Y+
206 * Measure: Y; Vref: Y+, Y-; IN: X+
207 * Measure: Z1; Vref: Y+, X-; IN: X+
208 * Measure: Z2; Vref: Y+, X-; IN: Y-
220 if (ts->get_pendown_state) in get_pendown_state()
221 return ts->get_pendown_state(); in get_pendown_state()
223 return gpiod_get_value(ts->gpio_pendown); in get_pendown_state()
228 struct input_dev *input = ts->input; in ads7846_report_pen_up()
234 ts->pendown = false; in ads7846_report_pen_up()
235 dev_vdbg(&ts->spi->dev, "UP\n"); in ads7846_report_pen_up()
238 /* Must be called with ts->lock held */
241 if (!ts->disabled && !ts->suspended) { in ads7846_stop()
243 ts->stopped = true; in ads7846_stop()
245 wake_up(&ts->wait); in ads7846_stop()
246 disable_irq(ts->spi->irq); in ads7846_stop()
250 /* Must be called with ts->lock held */
253 if (!ts->disabled && !ts->suspended) { in ads7846_restart()
255 if (ts->pendown && !get_pendown_state(ts)) in ads7846_restart()
259 ts->stopped = false; in ads7846_restart()
261 enable_irq(ts->spi->irq); in ads7846_restart()
265 /* Must be called with ts->lock held */
269 regulator_disable(ts->reg); in __ads7846_disable()
277 /* Must be called with ts->lock held */
282 error = regulator_enable(ts->reg); in __ads7846_enable()
284 dev_err(&ts->spi->dev, "Failed to enable supply: %d\n", error); in __ads7846_enable()
291 mutex_lock(&ts->lock); in ads7846_disable()
293 if (!ts->disabled) { in ads7846_disable()
295 if (!ts->suspended) in ads7846_disable()
298 ts->disabled = true; in ads7846_disable()
301 mutex_unlock(&ts->lock); in ads7846_disable()
306 mutex_lock(&ts->lock); in ads7846_enable()
308 if (ts->disabled) { in ads7846_enable()
310 ts->disabled = false; in ads7846_enable()
312 if (!ts->suspended) in ads7846_enable()
316 mutex_unlock(&ts->lock); in ads7846_enable()
319 /*--------------------------------------------------------------------------*/
322 * Non-touchscreen sensors only use single-ended conversions.
323 * The range is GND..vREF. The ads7843 and ads7835 must use external vREF;
324 * ads7846 lets that pin be unconnected, to use internal vREF.
361 return -ENOMEM; in ads7846_read12_ser()
363 spi_message_init(&req->msg); in ads7846_read12_ser()
365 /* maybe turn on internal vREF, and let it settle */ in ads7846_read12_ser()
366 if (ts->use_internal) { in ads7846_read12_ser()
367 req->ref_on = REF_ON; in ads7846_read12_ser()
368 req->xfer[0].tx_buf = &req->ref_on; in ads7846_read12_ser()
369 req->xfer[0].len = 1; in ads7846_read12_ser()
370 spi_message_add_tail(&req->xfer[0], &req->msg); in ads7846_read12_ser()
372 req->xfer[1].rx_buf = &req->scratch; in ads7846_read12_ser()
373 req->xfer[1].len = 2; in ads7846_read12_ser()
376 req->xfer[1].delay.value = ts->vref_delay_usecs; in ads7846_read12_ser()
377 req->xfer[1].delay.unit = SPI_DELAY_UNIT_USECS; in ads7846_read12_ser()
378 spi_message_add_tail(&req->xfer[1], &req->msg); in ads7846_read12_ser()
388 req->command = (u8) command; in ads7846_read12_ser()
389 req->xfer[2].tx_buf = &req->command; in ads7846_read12_ser()
390 req->xfer[2].len = 1; in ads7846_read12_ser()
391 spi_message_add_tail(&req->xfer[2], &req->msg); in ads7846_read12_ser()
393 req->xfer[3].rx_buf = &req->sample; in ads7846_read12_ser()
394 req->xfer[3].len = 2; in ads7846_read12_ser()
395 spi_message_add_tail(&req->xfer[3], &req->msg); in ads7846_read12_ser()
400 req->ref_off = PWRDOWN; in ads7846_read12_ser()
401 req->xfer[4].tx_buf = &req->ref_off; in ads7846_read12_ser()
402 req->xfer[4].len = 1; in ads7846_read12_ser()
403 spi_message_add_tail(&req->xfer[4], &req->msg); in ads7846_read12_ser()
405 req->xfer[5].rx_buf = &req->scratch; in ads7846_read12_ser()
406 req->xfer[5].len = 2; in ads7846_read12_ser()
407 CS_CHANGE(req->xfer[5]); in ads7846_read12_ser()
408 spi_message_add_tail(&req->xfer[5], &req->msg); in ads7846_read12_ser()
410 mutex_lock(&ts->lock); in ads7846_read12_ser()
412 status = spi_sync(spi, &req->msg); in ads7846_read12_ser()
414 mutex_unlock(&ts->lock); in ads7846_read12_ser()
417 /* on-wire is a must-ignore bit, a BE12 value, then padding */ in ads7846_read12_ser()
418 status = be16_to_cpu(req->sample); in ads7846_read12_ser()
436 return -ENOMEM; in ads7845_read12_ser()
438 spi_message_init(&req->msg); in ads7845_read12_ser()
440 req->command[0] = (u8) command; in ads7845_read12_ser()
441 req->xfer[0].tx_buf = req->command; in ads7845_read12_ser()
442 req->xfer[0].rx_buf = req->sample; in ads7845_read12_ser()
443 req->xfer[0].len = 3; in ads7845_read12_ser()
444 spi_message_add_tail(&req->xfer[0], &req->msg); in ads7845_read12_ser()
446 mutex_lock(&ts->lock); in ads7845_read12_ser()
448 status = spi_sync(spi, &req->msg); in ads7845_read12_ser()
450 mutex_unlock(&ts->lock); in ads7845_read12_ser()
454 status = get_unaligned_be16(&req->sample[1]); in ads7845_read12_ser()
469 ssize_t v = ads7846_read12_ser(&ts->spi->dev, \
479 * ADS7846 could use the low-accuracy two-sample scheme, but can't do the high
493 * if we know vREF. userspace may need to scale vAUX to match the board's in SHOW()
494 * external resistors; we assume that vBATT only uses the internal ones. in SHOW()
500 /* external resistors may scale vAUX into 0..vREF */ in SHOW()
501 retval *= ts->vref_mv; in SHOW()
512 if (ts->model == 7846) in vbatt_adjust()
527 if (ts->model == 7843 && index < 2) /* in0, in1 */ in SHOW()
529 if (ts->model == 7845 && index != 2) /* in0 */ in SHOW()
532 return attr->mode; in SHOW()
554 switch (ts->model) { in ads784x_hwmon_register()
556 if (!ts->vref_mv) { in ads784x_hwmon_register()
557 dev_dbg(&spi->dev, "assuming 2.5V internal vREF\n"); in ads784x_hwmon_register()
558 ts->vref_mv = 2500; in ads784x_hwmon_register()
559 ts->use_internal = true; in ads784x_hwmon_register()
564 if (!ts->vref_mv) { in ads784x_hwmon_register()
565 dev_warn(&spi->dev, in ads784x_hwmon_register()
566 "external vREF for ADS%d not specified\n", in ads784x_hwmon_register()
567 ts->model); in ads784x_hwmon_register()
573 hwmon = devm_hwmon_device_register_with_groups(&spi->dev, in ads784x_hwmon_register()
574 spi->modalias, ts, in ads784x_hwmon_register()
593 return sprintf(buf, "%u\n", ts->pendown); in ads7846_pen_down_show()
603 return sprintf(buf, "%u\n", ts->disabled); in ads7846_disable_show()
638 /*--------------------------------------------------------------------------*/
648 if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) { in ads7846_debounce_filter()
650 ts->read_rep = 0; in ads7846_debounce_filter()
655 if (ts->read_cnt < ts->debounce_max) { in ads7846_debounce_filter()
656 ts->last_read = *val; in ads7846_debounce_filter()
657 ts->read_cnt++; in ads7846_debounce_filter()
666 ts->read_cnt = 0; in ads7846_debounce_filter()
670 if (++ts->read_rep > ts->debounce_rep) { in ads7846_debounce_filter()
675 ts->read_cnt = 0; in ads7846_debounce_filter()
676 ts->read_rep = 0; in ads7846_debounce_filter()
680 ts->read_cnt++; in ads7846_debounce_filter()
695 value = be16_to_cpup(&buf->data); in ads7846_get_value()
704 struct ads7846_packet *packet = ts->packet; in ads7846_set_cmd_val()
708 packet->y = val; in ads7846_set_cmd_val()
711 packet->x = val; in ads7846_set_cmd_val()
714 packet->z1 = val; in ads7846_set_cmd_val()
717 packet->z2 = val; in ads7846_set_cmd_val()
724 static u8 ads7846_get_cmd(enum ads7846_cmds cmd_idx, int vref) in ads7846_get_cmd() argument
728 return READ_Y(vref); in ads7846_get_cmd()
730 return READ_X(vref); in ads7846_get_cmd()
734 return READ_Z1(vref); in ads7846_get_cmd()
736 return READ_Z2(vref); in ads7846_get_cmd()
765 struct ads7846_packet *packet = ts->packet; in ads7846_filter()
770 packet->ignore = false; in ads7846_filter()
771 for (cmd_idx = packet->last_cmd_idx; cmd_idx < packet->cmds - 1; cmd_idx++) { in ads7846_filter()
772 struct ads7846_buf_layout *l = &packet->l[cmd_idx]; in ads7846_filter()
774 packet->last_cmd_idx = cmd_idx; in ads7846_filter()
776 for (b = l->skip; b < l->count; b++) { in ads7846_filter()
777 val = ads7846_get_value(&packet->rx[l->offset + b]); in ads7846_filter()
779 action = ts->filter(ts->filter_data, cmd_idx, &val); in ads7846_filter()
781 if (b == l->count - 1) in ads7846_filter()
782 return -EAGAIN; in ads7846_filter()
787 packet->ignore = true; in ads7846_filter()
798 struct ads7846_packet *packet = ts->packet; in ads7846_read_state()
803 packet->last_cmd_idx = 0; in ads7846_read_state()
806 ts->wait_for_sync(); in ads7846_read_state()
808 m = &ts->msg[msg_idx]; in ads7846_read_state()
809 error = spi_sync(ts->spi, m); in ads7846_read_state()
811 dev_err(&ts->spi->dev, "spi_sync --> %d\n", error); in ads7846_read_state()
812 packet->ignore = true; in ads7846_read_state()
826 struct ads7846_packet *packet = ts->packet; in ads7846_report_state()
830 x = packet->x; in ads7846_report_state()
831 y = packet->y; in ads7846_report_state()
832 if (ts->model == 7845) { in ads7846_report_state()
836 z1 = packet->z1; in ads7846_report_state()
837 z2 = packet->z2; in ads7846_report_state()
844 if (ts->model == 7843 || ts->model == 7845) { in ads7846_report_state()
845 Rt = ts->pressure_max / 2; in ads7846_report_state()
849 Rt -= z1; in ads7846_report_state()
850 Rt *= ts->x_plate_ohms; in ads7846_report_state()
864 if (packet->ignore || Rt > ts->pressure_max) { in ads7846_report_state()
865 dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n", in ads7846_report_state()
866 packet->ignore, Rt); in ads7846_report_state()
874 if (ts->penirq_recheck_delay_usecs) { in ads7846_report_state()
875 udelay(ts->penirq_recheck_delay_usecs); in ads7846_report_state()
890 struct input_dev *input = ts->input; in ads7846_report_state()
892 if (!ts->pendown) { in ads7846_report_state()
894 ts->pendown = true; in ads7846_report_state()
895 dev_vdbg(&ts->spi->dev, "DOWN\n"); in ads7846_report_state()
898 touchscreen_report_pos(input, &ts->core_prop, x, y, false); in ads7846_report_state()
899 input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt); in ads7846_report_state()
902 dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt); in ads7846_report_state()
921 while (!ts->stopped && get_pendown_state(ts)) { in ads7846_irq()
926 if (!ts->stopped) in ads7846_irq()
929 wait_event_timeout(ts->wait, ts->stopped, in ads7846_irq()
933 if (ts->pendown && !ts->stopped) in ads7846_irq()
943 mutex_lock(&ts->lock); in ads7846_suspend()
945 if (!ts->suspended) { in ads7846_suspend()
947 if (!ts->disabled) in ads7846_suspend()
950 if (device_may_wakeup(&ts->spi->dev)) in ads7846_suspend()
951 enable_irq_wake(ts->spi->irq); in ads7846_suspend()
953 ts->suspended = true; in ads7846_suspend()
956 mutex_unlock(&ts->lock); in ads7846_suspend()
965 mutex_lock(&ts->lock); in ads7846_resume()
967 if (ts->suspended) { in ads7846_resume()
969 ts->suspended = false; in ads7846_resume()
971 if (device_may_wakeup(&ts->spi->dev)) in ads7846_resume()
972 disable_irq_wake(ts->spi->irq); in ads7846_resume()
974 if (!ts->disabled) in ads7846_resume()
978 mutex_unlock(&ts->lock); in ads7846_resume()
990 * REVISIT when the irq can be triggered active-low, or if for some in ads7846_setup_pendown()
995 if (pdata->get_pendown_state) { in ads7846_setup_pendown()
996 ts->get_pendown_state = pdata->get_pendown_state; in ads7846_setup_pendown()
998 ts->gpio_pendown = gpiod_get(&spi->dev, "pendown", GPIOD_IN); in ads7846_setup_pendown()
999 if (IS_ERR(ts->gpio_pendown)) { in ads7846_setup_pendown()
1000 dev_err(&spi->dev, "failed to request pendown GPIO\n"); in ads7846_setup_pendown()
1001 return PTR_ERR(ts->gpio_pendown); in ads7846_setup_pendown()
1003 if (pdata->gpio_pendown_debounce) in ads7846_setup_pendown()
1004 gpiod_set_debounce(ts->gpio_pendown, in ads7846_setup_pendown()
1005 pdata->gpio_pendown_debounce); in ads7846_setup_pendown()
1018 struct spi_message *m = &ts->msg[0]; in ads7846_setup_spi_msg()
1019 struct spi_transfer *x = ts->xfer; in ads7846_setup_spi_msg()
1020 struct ads7846_packet *packet = ts->packet; in ads7846_setup_spi_msg()
1021 int vref = pdata->keep_vref_on; in ads7846_setup_spi_msg() local
1028 time = NSEC_PER_SEC / ts->spi->max_speed_hz; in ads7846_setup_spi_msg()
1030 count = pdata->settle_delay_usecs * NSEC_PER_USEC / time; in ads7846_setup_spi_msg()
1031 packet->count_skip = DIV_ROUND_UP(count, 24); in ads7846_setup_spi_msg()
1033 if (ts->debounce_max && ts->debounce_rep) in ads7846_setup_spi_msg()
1034 /* ads7846_debounce_filter() is making ts->debounce_rep + 2 in ads7846_setup_spi_msg()
1036 packet->count = ts->debounce_rep + 2; in ads7846_setup_spi_msg()
1038 packet->count = 1; in ads7846_setup_spi_msg()
1040 if (ts->model == 7846) in ads7846_setup_spi_msg()
1041 packet->cmds = 5; /* x, y, z1, z2, pwdown */ in ads7846_setup_spi_msg()
1043 packet->cmds = 3; /* x, y, pwdown */ in ads7846_setup_spi_msg()
1045 for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) { in ads7846_setup_spi_msg()
1046 struct ads7846_buf_layout *l = &packet->l[cmd_idx]; in ads7846_setup_spi_msg()
1049 if (cmd_idx == packet->cmds - 1) in ads7846_setup_spi_msg()
1053 max_count = packet->count + packet->count_skip; in ads7846_setup_spi_msg()
1055 max_count = packet->count; in ads7846_setup_spi_msg()
1057 l->offset = offset; in ads7846_setup_spi_msg()
1059 l->count = max_count; in ads7846_setup_spi_msg()
1060 l->skip = packet->count_skip; in ads7846_setup_spi_msg()
1061 size += sizeof(*packet->tx) * max_count; in ads7846_setup_spi_msg()
1064 packet->tx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL); in ads7846_setup_spi_msg()
1065 if (!packet->tx) in ads7846_setup_spi_msg()
1066 return -ENOMEM; in ads7846_setup_spi_msg()
1068 packet->rx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL); in ads7846_setup_spi_msg()
1069 if (!packet->rx) in ads7846_setup_spi_msg()
1070 return -ENOMEM; in ads7846_setup_spi_msg()
1072 if (ts->model == 7873) { in ads7846_setup_spi_msg()
1075 * keep VREF off during differential/ratiometric in ads7846_setup_spi_msg()
1078 ts->model = 7846; in ads7846_setup_spi_msg()
1079 vref = 0; in ads7846_setup_spi_msg()
1082 ts->msg_count = 1; in ads7846_setup_spi_msg()
1084 m->context = ts; in ads7846_setup_spi_msg()
1086 for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) { in ads7846_setup_spi_msg()
1087 struct ads7846_buf_layout *l = &packet->l[cmd_idx]; in ads7846_setup_spi_msg()
1090 if (cmd_idx == packet->cmds - 1) in ads7846_setup_spi_msg()
1093 cmd = ads7846_get_cmd(cmd_idx, vref); in ads7846_setup_spi_msg()
1095 for (b = 0; b < l->count; b++) in ads7846_setup_spi_msg()
1096 packet->tx[l->offset + b].cmd = cmd; in ads7846_setup_spi_msg()
1099 x->tx_buf = packet->tx; in ads7846_setup_spi_msg()
1100 x->rx_buf = packet->rx; in ads7846_setup_spi_msg()
1101 x->len = size; in ads7846_setup_spi_msg()
1124 return ERR_PTR(-ENOMEM); in ads7846_get_props()
1126 pdata->model = (uintptr_t)device_get_match_data(dev); in ads7846_get_props()
1128 device_property_read_u16(dev, "ti,vref-delay-usecs", in ads7846_get_props()
1129 &pdata->vref_delay_usecs); in ads7846_get_props()
1130 device_property_read_u16(dev, "ti,vref-mv", &pdata->vref_mv); in ads7846_get_props()
1131 pdata->keep_vref_on = device_property_read_bool(dev, "ti,keep-vref-on"); in ads7846_get_props()
1133 pdata->swap_xy = device_property_read_bool(dev, "ti,swap-xy"); in ads7846_get_props()
1135 device_property_read_u16(dev, "ti,settle-delay-usec", in ads7846_get_props()
1136 &pdata->settle_delay_usecs); in ads7846_get_props()
1137 device_property_read_u16(dev, "ti,penirq-recheck-delay-usecs", in ads7846_get_props()
1138 &pdata->penirq_recheck_delay_usecs); in ads7846_get_props()
1140 device_property_read_u16(dev, "ti,x-plate-ohms", &pdata->x_plate_ohms); in ads7846_get_props()
1141 device_property_read_u16(dev, "ti,y-plate-ohms", &pdata->y_plate_ohms); in ads7846_get_props()
1143 device_property_read_u16(dev, "ti,x-min", &pdata->x_min); in ads7846_get_props()
1144 device_property_read_u16(dev, "ti,y-min", &pdata->y_min); in ads7846_get_props()
1145 device_property_read_u16(dev, "ti,x-max", &pdata->x_max); in ads7846_get_props()
1146 device_property_read_u16(dev, "ti,y-max", &pdata->y_max); in ads7846_get_props()
1149 * touchscreen-max-pressure gets parsed during in ads7846_get_props()
1152 device_property_read_u16(dev, "ti,pressure-min", &pdata->pressure_min); in ads7846_get_props()
1153 if (!device_property_read_u32(dev, "touchscreen-min-pressure", &value)) in ads7846_get_props()
1154 pdata->pressure_min = (u16) value; in ads7846_get_props()
1155 device_property_read_u16(dev, "ti,pressure-max", &pdata->pressure_max); in ads7846_get_props()
1157 device_property_read_u16(dev, "ti,debounce-max", &pdata->debounce_max); in ads7846_get_props()
1158 if (!device_property_read_u32(dev, "touchscreen-average-samples", &value)) in ads7846_get_props()
1159 pdata->debounce_max = (u16) value; in ads7846_get_props()
1160 device_property_read_u16(dev, "ti,debounce-tol", &pdata->debounce_tol); in ads7846_get_props()
1161 device_property_read_u16(dev, "ti,debounce-rep", &pdata->debounce_rep); in ads7846_get_props()
1163 device_property_read_u32(dev, "ti,pendown-gpio-debounce", in ads7846_get_props()
1164 &pdata->gpio_pendown_debounce); in ads7846_get_props()
1166 pdata->wakeup = device_property_read_bool(dev, "wakeup-source") || in ads7846_get_props()
1181 struct device *dev = &spi->dev; in ads7846_probe()
1187 if (!spi->irq) { in ads7846_probe()
1189 return -EINVAL; in ads7846_probe()
1193 if (spi->max_speed_hz > (125000 * SAMPLE_BITS)) { in ads7846_probe()
1195 (spi->max_speed_hz/SAMPLE_BITS)/1000); in ads7846_probe()
1196 return -EINVAL; in ads7846_probe()
1202 * may not. So we stick to very-portable 8 bit words, both RX and TX. in ads7846_probe()
1204 spi->bits_per_word = 8; in ads7846_probe()
1205 spi->mode &= ~SPI_MODE_X_MASK; in ads7846_probe()
1206 spi->mode |= SPI_MODE_0; in ads7846_probe()
1213 return -ENOMEM; in ads7846_probe()
1217 return -ENOMEM; in ads7846_probe()
1221 return -ENOMEM; in ads7846_probe()
1225 ts->packet = packet; in ads7846_probe()
1226 ts->spi = spi; in ads7846_probe()
1227 ts->input = input_dev; in ads7846_probe()
1229 mutex_init(&ts->lock); in ads7846_probe()
1230 init_waitqueue_head(&ts->wait); in ads7846_probe()
1239 ts->model = pdata->model ? : 7846; in ads7846_probe()
1240 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100; in ads7846_probe()
1241 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400; in ads7846_probe()
1242 ts->vref_mv = pdata->vref_mv; in ads7846_probe()
1244 if (pdata->debounce_max) { in ads7846_probe()
1245 ts->debounce_max = pdata->debounce_max; in ads7846_probe()
1246 if (ts->debounce_max < 2) in ads7846_probe()
1247 ts->debounce_max = 2; in ads7846_probe()
1248 ts->debounce_tol = pdata->debounce_tol; in ads7846_probe()
1249 ts->debounce_rep = pdata->debounce_rep; in ads7846_probe()
1250 ts->filter = ads7846_debounce_filter; in ads7846_probe()
1251 ts->filter_data = ts; in ads7846_probe()
1253 ts->filter = ads7846_no_filter; in ads7846_probe()
1260 if (pdata->penirq_recheck_delay_usecs) in ads7846_probe()
1261 ts->penirq_recheck_delay_usecs = in ads7846_probe()
1262 pdata->penirq_recheck_delay_usecs; in ads7846_probe()
1264 ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync; in ads7846_probe()
1266 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev)); in ads7846_probe()
1267 snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model); in ads7846_probe()
1269 input_dev->name = ts->name; in ads7846_probe()
1270 input_dev->phys = ts->phys; in ads7846_probe()
1272 input_dev->id.bustype = BUS_SPI; in ads7846_probe()
1273 input_dev->id.product = pdata->model; in ads7846_probe()
1277 pdata->x_min ? : 0, in ads7846_probe()
1278 pdata->x_max ? : MAX_12BIT, in ads7846_probe()
1281 pdata->y_min ? : 0, in ads7846_probe()
1282 pdata->y_max ? : MAX_12BIT, in ads7846_probe()
1284 if (ts->model != 7845) in ads7846_probe()
1286 pdata->pressure_min, pdata->pressure_max, 0, 0); in ads7846_probe()
1293 touchscreen_parse_properties(ts->input, false, &ts->core_prop); in ads7846_probe()
1294 ts->pressure_max = input_abs_get_max(input_dev, ABS_PRESSURE) ? : ~0; in ads7846_probe()
1297 * Check if legacy ti,swap-xy binding is used instead of in ads7846_probe()
1298 * touchscreen-swapped-x-y in ads7846_probe()
1300 if (!ts->core_prop.swap_x_y && pdata->swap_xy) { in ads7846_probe()
1301 swap(input_dev->absinfo[ABS_X], input_dev->absinfo[ABS_Y]); in ads7846_probe()
1302 ts->core_prop.swap_x_y = true; in ads7846_probe()
1307 ts->reg = devm_regulator_get(dev, "vcc"); in ads7846_probe()
1308 if (IS_ERR(ts->reg)) { in ads7846_probe()
1309 err = PTR_ERR(ts->reg); in ads7846_probe()
1314 err = regulator_enable(ts->reg); in ads7846_probe()
1320 err = devm_add_action_or_reset(dev, ads7846_regulator_disable, ts->reg); in ads7846_probe()
1324 irq_flags = pdata->irq_flags ? : IRQF_TRIGGER_FALLING; in ads7846_probe()
1327 err = devm_request_threaded_irq(dev, spi->irq, in ads7846_probe()
1329 irq_flags, dev->driver->name, ts); in ads7846_probe()
1330 if (err && err != -EPROBE_DEFER && !pdata->irq_flags) { in ads7846_probe()
1332 "trying pin change workaround on irq %d\n", spi->irq); in ads7846_probe()
1334 err = devm_request_threaded_irq(dev, spi->irq, in ads7846_probe()
1336 irq_flags, dev->driver->name, in ads7846_probe()
1341 dev_dbg(dev, "irq %d busy?\n", spi->irq); in ads7846_probe()
1349 dev_info(dev, "touchscreen, irq %d\n", spi->irq); in ads7846_probe()
1352 * Take a first sample, leaving nPENIRQ active and vREF off; avoid in ads7846_probe()
1355 if (ts->model == 7845) in ads7846_probe()
1368 device_init_wakeup(dev, pdata->wakeup); in ads7846_probe()