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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb 
 kernel/drivers/input/mouse/elan_i2c_core.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Elan I2C/SMBus Touchpad driver
34  *
....@@ -10,10 +11,6 @@
1011  * Based on cyapa driver:
1112  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
1213  * copyright (c) 2011-2012 Google, Inc.
13
- *
14
- * This program is free software; you can redistribute it and/or modify it
15
- * under the terms of the GNU General Public License version 2 as published
16
- * by the Free Software Foundation.
1714  *
1815  * Trademarks are the property of their respective owners.
1916  */
....@@ -37,6 +34,7 @@
3734 #include <linux/completion.h>
3835 #include <linux/of.h>
3936 #include <linux/property.h>
37
+#include <linux/input/elan-i2c-ids.h>
4038 #include <linux/regulator/consumer.h>
4139 #include <asm/unaligned.h>
4240 
....@@ -48,16 +46,6 @@
4846 #define ETP_FWIDTH_REDUCE	90
4947 #define ETP_FINGER_WIDTH	15
5048 #define ETP_RETRY_COUNT		3
51
-
52
-#define ETP_MAX_FINGERS		5
53
-#define ETP_FINGER_DATA_LEN	5
54
-#define ETP_REPORT_ID		0x5D
55
-#define ETP_TP_REPORT_ID	0x5E
56
-#define ETP_REPORT_ID_OFFSET	2
57
-#define ETP_TOUCH_INFO_OFFSET	3
58
-#define ETP_FINGER_DATA_OFFSET	4
59
-#define ETP_HOVER_INFO_OFFSET	30
60
-#define ETP_MAX_REPORT_LEN	34
6149 
6250 /* The main device structure */
6351 struct elan_tp_data {
....@@ -87,11 +75,14 @@
8775 	u8			sm_version;
8876 	u8			iap_version;
8977 	u16			fw_checksum;
78
+	unsigned int		report_features;
79
+	unsigned int		report_len;
9080 	int			pressure_adjustment;
9181 	u8			mode;
9282 	u16			ic_type;
9383 	u16			fw_validpage_count;
94
-	u16			fw_signature_address;
84
+	u16			fw_page_size;
85
+	u32			fw_signature_address;
9586 
9687 	bool			irq_wake;
9788 
....@@ -99,10 +90,11 @@
9990 	u8			max_baseline;
10091 	bool			baseline_ready;
10192 	u8			clickpad;
93
+	bool			middle_button;
10294 };
10395 
104
-static int elan_get_fwinfo(u16 ic_type, u16 *validpage_count,
105
-			   u16 *signature_address)
96
+static int elan_get_fwinfo(u16 ic_type, u8 iap_version, u16 *validpage_count,
97
+			   u32 *signature_address, u16 *page_size)
10698 {
10799 	switch (ic_type) {
108100 	case 0x00:
....@@ -127,68 +119,55 @@
127119 	case 0x10:
128120 		*validpage_count = 1024;
129121 		break;
122
+	case 0x11:
123
+		*validpage_count = 1280;
124
+		break;
125
+	case 0x13:
126
+		*validpage_count = 2048;
127
+		break;
128
+	case 0x14:
129
+	case 0x15:
130
+		*validpage_count = 1024;
131
+		break;
130132 	default:
131133 		/* unknown ic type clear value */
132134 		*validpage_count = 0;
133135 		*signature_address = 0;
136
+		*page_size = 0;
134137 		return -ENXIO;
135138 	}
136139 
137140 	*signature_address =
138141 		(*validpage_count * ETP_FW_PAGE_SIZE) - ETP_FW_SIGNATURE_SIZE;
139142 
143
+	if ((ic_type == 0x14 || ic_type == 0x15) && iap_version >= 2) {
144
+		*validpage_count /= 8;
145
+		*page_size = ETP_FW_PAGE_SIZE_512;
146
+	} else if (ic_type >= 0x0D && iap_version >= 1) {
147
+		*validpage_count /= 2;
148
+		*page_size = ETP_FW_PAGE_SIZE_128;
149
+	} else {
150
+		*page_size = ETP_FW_PAGE_SIZE;
151
+	}
152
+
140153 	return 0;
141154 }
142155 
143
-static int elan_enable_power(struct elan_tp_data *data)
156
+static int elan_set_power(struct elan_tp_data *data, bool on)
144157 {
145158 	int repeat = ETP_RETRY_COUNT;
146159 	int error;
147160 
148
-	error = regulator_enable(data->vcc);
149
-	if (error) {
150
-		dev_err(&data->client->dev,
151
-			"failed to enable regulator: %d\n", error);
152
-		return error;
153
-	}
154
-
155161 	do {
156
-		error = data->ops->power_control(data->client, true);
162
+		error = data->ops->power_control(data->client, on);
157163 		if (error >= 0)
158164 			return 0;
159165 
160166 		msleep(30);
161167 	} while (--repeat > 0);
162168 
163
-	dev_err(&data->client->dev, "failed to enable power: %d\n", error);
164
-	return error;
165
-}
166
-
167
-static int elan_disable_power(struct elan_tp_data *data)
168
-{
169
-	int repeat = ETP_RETRY_COUNT;
170
-	int error;
171
-
172
-	do {
173
-		error = data->ops->power_control(data->client, false);
174
-		if (!error) {
175
-			error = regulator_disable(data->vcc);
176
-			if (error) {
177
-				dev_err(&data->client->dev,
178
-					"failed to disable regulator: %d\n",
179
-					error);
180
-				/* Attempt to power the chip back up */
181
-				data->ops->power_control(data->client, true);
182
-				break;
183
-			}
184
-
185
-			return 0;
186
-		}
187
-
188
-		msleep(30);
189
-	} while (--repeat > 0);
190
-
191
-	dev_err(&data->client->dev, "failed to disable power: %d\n", error);
169
+	dev_err(&data->client->dev, "failed to set power %s: %d\n",
170
+		on ? "on" : "off", error);
192171 	return error;
193172 }
194173 
....@@ -216,8 +195,13 @@
216195 	if (error)
217196 		return error;
218197 
219
-	error = data->ops->get_sm_version(data->client, &data->ic_type,
220
-					  &data->sm_version, &data->clickpad);
198
+	error = data->ops->get_pattern(data->client, &data->pattern);
199
+	if (error)
200
+		return error;
201
+
202
+	error = data->ops->get_sm_version(data->client, data->pattern,
203
+					  &data->ic_type, &data->sm_version,
204
+					  &data->clickpad);
221205 	if (error)
222206 		return error;
223207 
....@@ -313,9 +297,9 @@
313297 static int elan_query_device_info(struct elan_tp_data *data)
314298 {
315299 	int error;
316
-	u16 ic_type;
317300 
318
-	error = data->ops->get_version(data->client, false, &data->fw_version);
301
+	error = data->ops->get_version(data->client, data->pattern, false,
302
+				       &data->fw_version);
319303 	if (error)
320304 		return error;
321305 
....@@ -324,7 +308,8 @@
324308 	if (error)
325309 		return error;
326310 
327
-	error = data->ops->get_version(data->client, true, &data->iap_version);
311
+	error = data->ops->get_version(data->client, data->pattern,
312
+				       true, &data->iap_version);
328313 	if (error)
329314 		return error;
330315 
....@@ -333,17 +318,16 @@
333318 	if (error)
334319 		return error;
335320 
336
-	error = data->ops->get_pattern(data->client, &data->pattern);
321
+	error = data->ops->get_report_features(data->client, data->pattern,
322
+					       &data->report_features,
323
+					       &data->report_len);
337324 	if (error)
338325 		return error;
339326 
340
-	if (data->pattern == 0x01)
341
-		ic_type = data->ic_type;
342
-	else
343
-		ic_type = data->iap_version;
344
-
345
-	error = elan_get_fwinfo(ic_type, &data->fw_validpage_count,
346
-				&data->fw_signature_address);
327
+	error = elan_get_fwinfo(data->ic_type, data->iap_version,
328
+				&data->fw_validpage_count,
329
+				&data->fw_signature_address,
330
+				&data->fw_page_size);
347331 	if (error)
348332 		dev_warn(&data->client->dev,
349333 			 "unexpected iap version %#04x (ic type: %#04x), firmware update will not work\n",
....@@ -352,41 +336,81 @@
352336 	return 0;
353337 }
354338 
355
-static unsigned int elan_convert_resolution(u8 val)
339
+static unsigned int elan_convert_resolution(u8 val, u8 pattern)
356340 {
357341 	/*
358
-	 * (value from firmware) * 10 + 790 = dpi
359
-	 *
342
+	 * pattern <= 0x01:
343
+	 *	(value from firmware) * 10 + 790 = dpi
344
+	 * else
345
+	 *	((value from firmware) + 3) * 100 = dpi
346
+	 */
347
+	int res = pattern <= 0x01 ?
348
+		(int)(char)val * 10 + 790 : ((int)(char)val + 3) * 100;
349
+	/*
360350 	 * We also have to convert dpi to dots/mm (*10/254 to avoid floating
361351 	 * point).
362352 	 */
363
-
364
-	return ((int)(char)val * 10 + 790) * 10 / 254;
353
+	return res * 10 / 254;
365354 }
366355 
367356 static int elan_query_device_parameters(struct elan_tp_data *data)
368357 {
358
+	struct i2c_client *client = data->client;
369359 	unsigned int x_traces, y_traces;
360
+	u32 x_mm, y_mm;
370361 	u8 hw_x_res, hw_y_res;
371362 	int error;
372363 
373
-	error = data->ops->get_max(data->client, &data->max_x, &data->max_y);
374
-	if (error)
375
-		return error;
364
+	if (device_property_read_u32(&client->dev,
365
+				     "touchscreen-size-x", &data->max_x) ||
366
+	    device_property_read_u32(&client->dev,
367
+				     "touchscreen-size-y", &data->max_y)) {
368
+		error = data->ops->get_max(data->client,
369
+					   &data->max_x,
370
+					   &data->max_y);
371
+		if (error)
372
+			return error;
373
+	} else {
374
+		/* size is the maximum + 1 */
375
+		--data->max_x;
376
+		--data->max_y;
377
+	}
376378 
377
-	error = data->ops->get_num_traces(data->client, &x_traces, &y_traces);
378
-	if (error)
379
-		return error;
380
-
379
+	if (device_property_read_u32(&client->dev,
380
+				     "elan,x_traces",
381
+				     &x_traces) ||
382
+	    device_property_read_u32(&client->dev,
383
+				     "elan,y_traces",
384
+				     &y_traces)) {
385
+		error = data->ops->get_num_traces(data->client,
386
+						  &x_traces, &y_traces);
387
+		if (error)
388
+			return error;
389
+	}
381390 	data->width_x = data->max_x / x_traces;
382391 	data->width_y = data->max_y / y_traces;
383392 
384
-	error = data->ops->get_resolution(data->client, &hw_x_res, &hw_y_res);
385
-	if (error)
386
-		return error;
393
+	if (device_property_read_u32(&client->dev,
394
+				     "touchscreen-x-mm", &x_mm) ||
395
+	    device_property_read_u32(&client->dev,
396
+				     "touchscreen-y-mm", &y_mm)) {
397
+		error = data->ops->get_resolution(data->client,
398
+						  &hw_x_res, &hw_y_res);
399
+		if (error)
400
+			return error;
387401 
388
-	data->x_res = elan_convert_resolution(hw_x_res);
389
-	data->y_res = elan_convert_resolution(hw_y_res);
402
+		data->x_res = elan_convert_resolution(hw_x_res, data->pattern);
403
+		data->y_res = elan_convert_resolution(hw_y_res, data->pattern);
404
+	} else {
405
+		data->x_res = (data->max_x + 1) / x_mm;
406
+		data->y_res = (data->max_y + 1) / y_mm;
407
+	}
408
+
409
+	if (device_property_read_bool(&client->dev, "elan,clickpad"))
410
+		data->clickpad = 1;
411
+
412
+	if (device_property_read_bool(&client->dev, "elan,middle-button"))
413
+		data->middle_button = true;
390414 
391415 	return 0;
392416 }
....@@ -396,14 +420,14 @@
396420  * IAP firmware updater related routines
397421  **********************************************************
398422  */
399
-static int elan_write_fw_block(struct elan_tp_data *data,
423
+static int elan_write_fw_block(struct elan_tp_data *data, u16 page_size,
400424 			       const u8 *page, u16 checksum, int idx)
401425 {
402426 	int retry = ETP_RETRY_COUNT;
403427 	int error;
404428 
405429 	do {
406
-		error = data->ops->write_fw_block(data->client,
430
+		error = data->ops->write_fw_block(data->client, page_size,
407431 						  page, checksum, idx);
408432 		if (!error)
409433 			return 0;
....@@ -426,21 +450,24 @@
426450 	u16 boot_page_count;
427451 	u16 sw_checksum = 0, fw_checksum = 0;
428452 
429
-	error = data->ops->prepare_fw_update(client);
453
+	error = data->ops->prepare_fw_update(client, data->ic_type,
454
+					     data->iap_version,
455
+					     data->fw_page_size);
430456 	if (error)
431457 		return error;
432458 
433459 	iap_start_addr = get_unaligned_le16(&fw->data[ETP_IAP_START_ADDR * 2]);
434460 
435
-	boot_page_count = (iap_start_addr * 2) / ETP_FW_PAGE_SIZE;
461
+	boot_page_count = (iap_start_addr * 2) / data->fw_page_size;
436462 	for (i = boot_page_count; i < data->fw_validpage_count; i++) {
437463 		u16 checksum = 0;
438
-		const u8 *page = &fw->data[i * ETP_FW_PAGE_SIZE];
464
+		const u8 *page = &fw->data[i * data->fw_page_size];
439465 
440
-		for (j = 0; j < ETP_FW_PAGE_SIZE; j += 2)
466
+		for (j = 0; j < data->fw_page_size; j += 2)
441467 			checksum += ((page[j + 1] << 8) | page[j]);
442468 
443
-		error = elan_write_fw_block(data, page, checksum, i);
469
+		error = elan_write_fw_block(data, data->fw_page_size,
470
+					    page, checksum, i);
444471 		if (error) {
445472 			dev_err(dev, "write page %d fail: %d\n", i, error);
446473 			return error;
....@@ -852,24 +879,22 @@
852879  * Elan isr functions
853880  ******************************************************************
854881  */
855
-static void elan_report_contact(struct elan_tp_data *data,
856
-				int contact_num, bool contact_valid,
857
-				u8 *finger_data)
882
+static void elan_report_contact(struct elan_tp_data *data, int contact_num,
883
+				bool contact_valid, bool high_precision,
884
+				u8 *packet, u8 *finger_data)
858885 {
859886 	struct input_dev *input = data->input;
860887 	unsigned int pos_x, pos_y;
861
-	unsigned int pressure, mk_x, mk_y;
862
-	unsigned int area_x, area_y, major, minor;
863
-	unsigned int scaled_pressure;
888
+	unsigned int pressure, scaled_pressure;
864889 
865890 	if (contact_valid) {
866
-		pos_x = ((finger_data[0] & 0xf0) << 4) |
867
-						finger_data[1];
868
-		pos_y = ((finger_data[0] & 0x0f) << 8) |
869
-						finger_data[2];
870
-		mk_x = (finger_data[3] & 0x0f);
871
-		mk_y = (finger_data[3] >> 4);
872
-		pressure = finger_data[4];
891
+		if (high_precision) {
892
+			pos_x = get_unaligned_be16(&finger_data[0]);
893
+			pos_y = get_unaligned_be16(&finger_data[2]);
894
+		} else {
895
+			pos_x = ((finger_data[0] & 0xf0) << 4) | finger_data[1];
896
+			pos_y = ((finger_data[0] & 0x0f) << 8) | finger_data[2];
897
+		}
873898 
874899 		if (pos_x > data->max_x || pos_y > data->max_y) {
875900 			dev_dbg(input->dev.parent,
....@@ -879,18 +904,8 @@
879904 			return;
880905 		}
881906 
882
-		/*
883
-		 * To avoid treating large finger as palm, let's reduce the
884
-		 * width x and y per trace.
885
-		 */
886
-		area_x = mk_x * (data->width_x - ETP_FWIDTH_REDUCE);
887
-		area_y = mk_y * (data->width_y - ETP_FWIDTH_REDUCE);
888
-
889
-		major = max(area_x, area_y);
890
-		minor = min(area_x, area_y);
891
-
907
+		pressure = finger_data[4];
892908 		scaled_pressure = pressure + data->pressure_adjustment;
893
-
894909 		if (scaled_pressure > ETP_MAX_PRESSURE)
895910 			scaled_pressure = ETP_MAX_PRESSURE;
896911 
....@@ -899,16 +914,37 @@
899914 		input_report_abs(input, ABS_MT_POSITION_X, pos_x);
900915 		input_report_abs(input, ABS_MT_POSITION_Y, data->max_y - pos_y);
901916 		input_report_abs(input, ABS_MT_PRESSURE, scaled_pressure);
902
-		input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
903
-		input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
904
-		input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
917
+
918
+		if (data->report_features & ETP_FEATURE_REPORT_MK) {
919
+			unsigned int mk_x, mk_y, area_x, area_y;
920
+			u8 mk_data = high_precision ?
921
+				packet[ETP_MK_DATA_OFFSET + contact_num] :
922
+				finger_data[3];
923
+
924
+			mk_x = mk_data & 0x0f;
925
+			mk_y = mk_data >> 4;
926
+
927
+			/*
928
+			 * To avoid treating large finger as palm, let's reduce
929
+			 * the width x and y per trace.
930
+			 */
931
+			area_x = mk_x * (data->width_x - ETP_FWIDTH_REDUCE);
932
+			area_y = mk_y * (data->width_y - ETP_FWIDTH_REDUCE);
933
+
934
+			input_report_abs(input, ABS_TOOL_WIDTH, mk_x);
935
+			input_report_abs(input, ABS_MT_TOUCH_MAJOR,
936
+					 max(area_x, area_y));
937
+			input_report_abs(input, ABS_MT_TOUCH_MINOR,
938
+					 min(area_x, area_y));
939
+		}
905940 	} else {
906941 		input_mt_slot(input, contact_num);
907
-		input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
942
+		input_mt_report_slot_inactive(input);
908943 	}
909944 }
910945 
911
-static void elan_report_absolute(struct elan_tp_data *data, u8 *packet)
946
+static void elan_report_absolute(struct elan_tp_data *data, u8 *packet,
947
+				 bool high_precision)
912948 {
913949 	struct input_dev *input = data->input;
914950 	u8 *finger_data = &packet[ETP_FINGER_DATA_OFFSET];
....@@ -917,17 +953,21 @@
917953 	u8 hover_info = packet[ETP_HOVER_INFO_OFFSET];
918954 	bool contact_valid, hover_event;
919955 
920
-	hover_event = hover_info & 0x40;
921
-	for (i = 0; i < ETP_MAX_FINGERS; i++) {
922
-		contact_valid = tp_info & (1U << (3 + i));
923
-		elan_report_contact(data, i, contact_valid, finger_data);
956
+	pm_wakeup_event(&data->client->dev, 0);
924957 
958
+	hover_event = hover_info & BIT(6);
959
+
960
+	for (i = 0; i < ETP_MAX_FINGERS; i++) {
961
+		contact_valid = tp_info & BIT(3 + i);
962
+		elan_report_contact(data, i, contact_valid, high_precision,
963
+				    packet, finger_data);
925964 		if (contact_valid)
926965 			finger_data += ETP_FINGER_DATA_LEN;
927966 	}
928967 
929
-	input_report_key(input, BTN_LEFT, tp_info & 0x01);
930
-	input_report_key(input, BTN_RIGHT, tp_info & 0x02);
968
+	input_report_key(input, BTN_LEFT,   tp_info & BIT(0));
969
+	input_report_key(input, BTN_MIDDLE, tp_info & BIT(2));
970
+	input_report_key(input, BTN_RIGHT,  tp_info & BIT(1));
931971 	input_report_abs(input, ABS_DISTANCE, hover_event != 0);
932972 	input_mt_report_pointer_emulation(input, true);
933973 	input_sync(input);
....@@ -938,6 +978,8 @@
938978 	struct input_dev *input = data->tp_input;
939979 	u8 *packet = &report[ETP_REPORT_ID_OFFSET + 1];
940980 	int x, y;
981
+
982
+	pm_wakeup_event(&data->client->dev, 0);
941983 
942984 	if (!data->tp_input) {
943985 		dev_warn_once(&data->client->dev,
....@@ -963,7 +1005,6 @@
9631005 static irqreturn_t elan_isr(int irq, void *dev_id)
9641006 {
9651007 	struct elan_tp_data *data = dev_id;
966
-	struct device *dev = &data->client->dev;
9671008 	int error;
9681009 	u8 report[ETP_MAX_REPORT_LEN];
9691010 
....@@ -977,19 +1018,23 @@
9771018 		goto out;
9781019 	}
9791020 
980
-	error = data->ops->get_report(data->client, report);
1021
+	error = data->ops->get_report(data->client, report, data->report_len);
9811022 	if (error)
9821023 		goto out;
9831024 
9841025 	switch (report[ETP_REPORT_ID_OFFSET]) {
9851026 	case ETP_REPORT_ID:
986
-		elan_report_absolute(data, report);
1027
+		elan_report_absolute(data, report, false);
1028
+		break;
1029
+	case ETP_REPORT_ID2:
1030
+		elan_report_absolute(data, report, true);
9871031 		break;
9881032 	case ETP_TP_REPORT_ID:
1033
+	case ETP_TP_REPORT_ID2:
9891034 		elan_report_trackpoint(data, report);
9901035 		break;
9911036 	default:
992
-		dev_err(dev, "invalid report id data (%x)\n",
1037
+		dev_err(&data->client->dev, "invalid report id data (%x)\n",
9931038 			report[ETP_REPORT_ID_OFFSET]);
9941039 	}
9951040 
....@@ -1059,10 +1104,13 @@
10591104 
10601105 	__set_bit(EV_ABS, input->evbit);
10611106 	__set_bit(INPUT_PROP_POINTER, input->propbit);
1062
-	if (data->clickpad)
1107
+	if (data->clickpad) {
10631108 		__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
1064
-	else
1109
+	} else {
10651110 		__set_bit(BTN_RIGHT, input->keybit);
1111
+		if (data->middle_button)
1112
+			__set_bit(BTN_MIDDLE, input->keybit);
1113
+	}
10661114 	__set_bit(BTN_LEFT, input->keybit);
10671115 
10681116 	/* Set up ST parameters */
....@@ -1071,7 +1119,9 @@
10711119 	input_abs_set_res(input, ABS_X, data->x_res);
10721120 	input_abs_set_res(input, ABS_Y, data->y_res);
10731121 	input_set_abs_params(input, ABS_PRESSURE, 0, ETP_MAX_PRESSURE, 0, 0);
1074
-	input_set_abs_params(input, ABS_TOOL_WIDTH, 0, ETP_FINGER_WIDTH, 0, 0);
1122
+	if (data->report_features & ETP_FEATURE_REPORT_MK)
1123
+		input_set_abs_params(input, ABS_TOOL_WIDTH,
1124
+				     0, ETP_FINGER_WIDTH, 0, 0);
10751125 	input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0);
10761126 
10771127 	/* And MT parameters */
....@@ -1081,10 +1131,12 @@
10811131 	input_abs_set_res(input, ABS_MT_POSITION_Y, data->y_res);
10821132 	input_set_abs_params(input, ABS_MT_PRESSURE, 0,
10831133 			     ETP_MAX_PRESSURE, 0, 0);
1084
-	input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
1085
-			     ETP_FINGER_WIDTH * max_width, 0, 0);
1086
-	input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0,
1087
-			     ETP_FINGER_WIDTH * min_width, 0, 0);
1134
+	if (data->report_features & ETP_FEATURE_REPORT_MK) {
1135
+		input_set_abs_params(input, ABS_MT_TOUCH_MAJOR,
1136
+				     0, ETP_FINGER_WIDTH * max_width, 0, 0);
1137
+		input_set_abs_params(input, ABS_MT_TOUCH_MINOR,
1138
+				     0, ETP_FINGER_WIDTH * min_width, 0, 0);
1139
+	}
10881140 
10891141 	data->input = input;
10901142 
....@@ -1096,13 +1148,6 @@
10961148 	struct elan_tp_data *data = _data;
10971149 
10981150 	regulator_disable(data->vcc);
1099
-}
1100
-
1101
-static void elan_remove_sysfs_groups(void *_data)
1102
-{
1103
-	struct elan_tp_data *data = _data;
1104
-
1105
-	sysfs_remove_groups(&data->client->dev.kobj, elan_sysfs_groups);
11061151 }
11071152 
11081153 static int elan_probe(struct i2c_client *client,
....@@ -1154,9 +1199,8 @@
11541199 		return error;
11551200 	}
11561201 
1157
-	error = devm_add_action(dev, elan_disable_regulator, data);
1202
+	error = devm_add_action_or_reset(dev, elan_disable_regulator, data);
11581203 	if (error) {
1159
-		regulator_disable(data->vcc);
11601204 		dev_err(dev, "Failed to add disable regulator action: %d\n",
11611205 			error);
11621206 		return error;
....@@ -1229,17 +1273,9 @@
12291273 		return error;
12301274 	}
12311275 
1232
-	error = sysfs_create_groups(&dev->kobj, elan_sysfs_groups);
1276
+	error = devm_device_add_groups(dev, elan_sysfs_groups);
12331277 	if (error) {
12341278 		dev_err(dev, "failed to create sysfs attributes: %d\n", error);
1235
-		return error;
1236
-	}
1237
-
1238
-	error = devm_add_action(dev, elan_remove_sysfs_groups, data);
1239
-	if (error) {
1240
-		elan_remove_sysfs_groups(data);
1241
-		dev_err(dev, "Failed to add sysfs cleanup action: %d\n",
1242
-			error);
12431279 		return error;
12441280 	}
12451281 
....@@ -1291,9 +1327,19 @@
12911327 		/* Enable wake from IRQ */
12921328 		data->irq_wake = (enable_irq_wake(client->irq) == 0);
12931329 	} else {
1294
-		ret = elan_disable_power(data);
1330
+		ret = elan_set_power(data, false);
1331
+		if (ret)
1332
+			goto err;
1333
+
1334
+		ret = regulator_disable(data->vcc);
1335
+		if (ret) {
1336
+			dev_err(dev, "error %d disabling regulator\n", ret);
1337
+			/* Attempt to power the chip back up */
1338
+			elan_set_power(data, true);
1339
+		}
12951340 	}
12961341 
1342
+err:
12971343 	mutex_unlock(&data->sysfs_mutex);
12981344 	return ret;
12991345 }
....@@ -1304,12 +1350,18 @@
13041350 	struct elan_tp_data *data = i2c_get_clientdata(client);
13051351 	int error;
13061352 
1307
-	if (device_may_wakeup(dev) && data->irq_wake) {
1353
+	if (!device_may_wakeup(dev)) {
1354
+		error = regulator_enable(data->vcc);
1355
+		if (error) {
1356
+			dev_err(dev, "error %d enabling regulator\n", error);
1357
+			goto err;
1358
+		}
1359
+	} else if (data->irq_wake) {
13081360 		disable_irq_wake(client->irq);
13091361 		data->irq_wake = false;
13101362 	}
13111363 
1312
-	error = elan_enable_power(data);
1364
+	error = elan_set_power(data, true);
13131365 	if (error) {
13141366 		dev_err(dev, "power up when resuming failed: %d\n", error);
13151367 		goto err;
....@@ -1333,55 +1385,6 @@
13331385 MODULE_DEVICE_TABLE(i2c, elan_id);
13341386 
13351387 #ifdef CONFIG_ACPI
1336
-static const struct acpi_device_id elan_acpi_id[] = {
1337
-	{ "ELAN0000", 0 },
1338
-	{ "ELAN0100", 0 },
1339
-	{ "ELAN0600", 0 },
1340
-	{ "ELAN0601", 0 },
1341
-	{ "ELAN0602", 0 },
1342
-	{ "ELAN0603", 0 },
1343
-	{ "ELAN0604", 0 },
1344
-	{ "ELAN0605", 0 },
1345
-	{ "ELAN0606", 0 },
1346
-	{ "ELAN0607", 0 },
1347
-	{ "ELAN0608", 0 },
1348
-	{ "ELAN0609", 0 },
1349
-	{ "ELAN060B", 0 },
1350
-	{ "ELAN060C", 0 },
1351
-	{ "ELAN060F", 0 },
1352
-	{ "ELAN0610", 0 },
1353
-	{ "ELAN0611", 0 },
1354
-	{ "ELAN0612", 0 },
1355
-	{ "ELAN0615", 0 },
1356
-	{ "ELAN0616", 0 },
1357
-	{ "ELAN0617", 0 },
1358
-	{ "ELAN0618", 0 },
1359
-	{ "ELAN0619", 0 },
1360
-	{ "ELAN061A", 0 },
1361
-/*	{ "ELAN061B", 0 }, not working on the Lenovo Legion Y7000 */
1362
-	{ "ELAN061C", 0 },
1363
-	{ "ELAN061D", 0 },
1364
-	{ "ELAN061E", 0 },
1365
-	{ "ELAN061F", 0 },
1366
-	{ "ELAN0620", 0 },
1367
-	{ "ELAN0621", 0 },
1368
-	{ "ELAN0622", 0 },
1369
-	{ "ELAN0623", 0 },
1370
-	{ "ELAN0624", 0 },
1371
-	{ "ELAN0625", 0 },
1372
-	{ "ELAN0626", 0 },
1373
-	{ "ELAN0627", 0 },
1374
-	{ "ELAN0628", 0 },
1375
-	{ "ELAN0629", 0 },
1376
-	{ "ELAN062A", 0 },
1377
-	{ "ELAN062B", 0 },
1378
-	{ "ELAN062C", 0 },
1379
-	{ "ELAN062D", 0 },
1380
-	{ "ELAN0631", 0 },
1381
-	{ "ELAN0632", 0 },
1382
-	{ "ELAN1000", 0 },
1383
-	{ }
1384
-};
13851388 MODULE_DEVICE_TABLE(acpi, elan_acpi_id);
13861389 #endif
13871390