152 	struct i2c_client *client;  member
190 static int elants_i2c_send(struct i2c_client *client,  in elants_i2c_send()  argument
195 	ret = i2c_master_send(client, data, size);  in elants_i2c_send()
202 	dev_err(&client->dev, "%s failed (%*ph): %d\n",  in elants_i2c_send()
208 static int elants_i2c_read(struct i2c_client *client, void *data, size_t size)  in elants_i2c_read()  argument
212 	ret = i2c_master_recv(client, data, size);  in elants_i2c_read()
219 	dev_err(&client->dev, "%s failed: %d\n", __func__, ret);  in elants_i2c_read()
224 static int elants_i2c_execute_command(struct i2c_client *client,  in elants_i2c_execute_command()  argument
247 		dev_err(&client->dev, "(%s): invalid command: %*ph\n",  in elants_i2c_execute_command()
253 		msgs[0].addr = client->addr;  in elants_i2c_execute_command()
254 		msgs[0].flags = client->flags & I2C_M_TEN;  in elants_i2c_execute_command()
258 		msgs[1].addr = client->addr;  in elants_i2c_execute_command()
259 		msgs[1].flags = (client->flags & I2C_M_TEN) | I2C_M_RD;  in elants_i2c_execute_command()
264 		ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));  in elants_i2c_execute_command()
267 				dev_dbg(&client->dev,  in elants_i2c_execute_command()
273 			dev_err(&client->dev,  in elants_i2c_execute_command()
282 				dev_dbg(&client->dev,  in elants_i2c_execute_command()
288 			dev_err(&client->dev,  in elants_i2c_execute_command()
300 	struct i2c_client *client = ts->client;  in elants_i2c_calibrate()  local
306 	disable_irq(client->irq);  in elants_i2c_calibrate()
311 	elants_i2c_send(client, w_flashkey, sizeof(w_flashkey));  in elants_i2c_calibrate()
312 	elants_i2c_send(client, rek, sizeof(rek));  in elants_i2c_calibrate()
314 	enable_irq(client->irq);  in elants_i2c_calibrate()
323 		dev_err(&client->dev,  in elants_i2c_calibrate()
330 		dev_err(&client->dev,  in elants_i2c_calibrate()
339 static int elants_i2c_sw_reset(struct i2c_client *client)  in elants_i2c_sw_reset()  argument
344 	error = elants_i2c_send(client, soft_rst_cmd,  in elants_i2c_sw_reset()
347 		dev_err(&client->dev, "software reset failed: %d\n", error);  in elants_i2c_sw_reset()
367 	struct i2c_client *client = ts->client;  in elants_i2c_query_hw_version()  local
374 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_hw_version()
385 	dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version);  in elants_i2c_query_hw_version()
392 	struct i2c_client *client = ts->client;  in elants_i2c_query_fw_version()  local
399 		error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_fw_version()
409 		dev_dbg(&client->dev, "(read fw version) resp %*phC\n",  in elants_i2c_query_fw_version()
413 	dev_err(&client->dev, "Invalid fw ver: %#04x\n", ts->fw_version);  in elants_i2c_query_fw_version()
420 	struct i2c_client *client = ts->client;  in elants_i2c_query_test_version()  local
426 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_test_version()
430 		dev_err(&client->dev, "Failed to read test version\n");  in elants_i2c_query_test_version()
443 	struct i2c_client *client = ts->client;  in elants_i2c_query_bc_version()  local
449 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_query_bc_version()
464 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info_ektf()  local
476 	error = elants_i2c_execute_command(client, get_xres_cmd,  in elants_i2c_query_ts_info_ektf()
485 	error = elants_i2c_execute_command(client, get_yres_cmd,  in elants_i2c_query_ts_info_ektf()
494 	dev_dbg(&client->dev, "phy_x=%d, phy_y=%d\n", phy_x, phy_y);  in elants_i2c_query_ts_info_ektf()
508 	struct i2c_client *client = ts->client;  in elants_i2c_query_ts_info_ekth()  local
526 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info_ekth()
541 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info_ekth()
549 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info_ekth()
559 	error = elants_i2c_execute_command(client,  in elants_i2c_query_ts_info_ekth()
569 	dev_dbg(&client->dev, "phy_x=%d, phy_y=%d\n", phy_x, phy_y);  in elants_i2c_query_ts_info_ekth()
572 		dev_warn(&client->dev,  in elants_i2c_query_ts_info_ekth()
588 static int elants_i2c_fastboot(struct i2c_client *client)  in elants_i2c_fastboot()  argument
593 	error = elants_i2c_send(client, boot_cmd, sizeof(boot_cmd));  in elants_i2c_fastboot()
595 		dev_err(&client->dev, "boot failed: %d\n", error);  in elants_i2c_fastboot()
599 	dev_dbg(&client->dev, "boot success -- 0x%x\n", client->addr);  in elants_i2c_fastboot()
605 	struct i2c_client *client = ts->client;  in elants_i2c_initialize()  local
612 		error = elants_i2c_sw_reset(client);  in elants_i2c_initialize()
619 		error = elants_i2c_fastboot(client);  in elants_i2c_initialize()
629 		error = elants_i2c_read(client, buf, sizeof(buf));  in elants_i2c_initialize()
631 			dev_err(&client->dev,  in elants_i2c_initialize()
645 			dev_err(&client->dev,  in elants_i2c_initialize()
686 static int elants_i2c_fw_write_page(struct i2c_client *client,  in elants_i2c_fw_write_page()  argument
695 		error = elants_i2c_send(client, page, ELAN_FW_PAGESIZE);  in elants_i2c_fw_write_page()
697 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
702 		error = elants_i2c_read(client, buf, 2);  in elants_i2c_fw_write_page()
704 			dev_err(&client->dev,  in elants_i2c_fw_write_page()
713 		dev_err(&client->dev,  in elants_i2c_fw_write_page()
724 	struct i2c_client *client = ts->client;  in elants_i2c_validate_remark_id()  local
732 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in elants_i2c_validate_remark_id()
743 		dev_err(&client->dev,  in elants_i2c_validate_remark_id()
754 	struct i2c_client *client = ts->client;  in elants_i2c_should_check_remark_id()  local
770 		dev_dbg(&client->dev,  in elants_i2c_should_check_remark_id()
783 static int elants_i2c_do_update_firmware(struct i2c_client *client,  in elants_i2c_do_update_firmware()  argument
787 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_do_update_firmware()
800 		dev_dbg(&client->dev, "Recovery mode procedure\n");  in elants_i2c_do_update_firmware()
808 		error = elants_i2c_send(client, enter_iap2, sizeof(enter_iap2));  in elants_i2c_do_update_firmware()
810 			dev_err(&client->dev, "failed to enter IAP mode: %d\n",  in elants_i2c_do_update_firmware()
816 		dev_dbg(&client->dev, "Normal IAP procedure\n");  in elants_i2c_do_update_firmware()
819 		error = elants_i2c_send(client, close_idle, sizeof(close_idle));  in elants_i2c_do_update_firmware()
821 			dev_err(&client->dev, "Failed close idle: %d\n", error);  in elants_i2c_do_update_firmware()
824 		elants_i2c_sw_reset(client);  in elants_i2c_do_update_firmware()
833 		error = elants_i2c_send(client, enter_iap, sizeof(enter_iap));  in elants_i2c_do_update_firmware()
835 			dev_err(&client->dev, "failed to enter IAP mode: %d\n",  in elants_i2c_do_update_firmware()
844 	error = elants_i2c_read(client, buf, 4);  in elants_i2c_do_update_firmware()
846 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
853 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
859 	dev_info(&client->dev, "successfully entered IAP mode");  in elants_i2c_do_update_firmware()
861 	send_id = client->addr;  in elants_i2c_do_update_firmware()
862 	error = elants_i2c_send(client, &send_id, 1);  in elants_i2c_do_update_firmware()
864 		dev_err(&client->dev, "sending dummy byte failed: %d\n",  in elants_i2c_do_update_firmware()
870 	error = elants_i2c_send(client, fw->data, ELAN_FW_PAGESIZE);  in elants_i2c_do_update_firmware()
872 		dev_err(&client->dev, "clearing of the last page failed: %d\n",  in elants_i2c_do_update_firmware()
877 	error = elants_i2c_read(client, buf, 2);  in elants_i2c_do_update_firmware()
879 		dev_err(&client->dev,  in elants_i2c_do_update_firmware()
886 	dev_dbg(&client->dev, "IAP Pages = %d\n", n_fw_pages);  in elants_i2c_do_update_firmware()
889 		error = elants_i2c_fw_write_page(client,  in elants_i2c_do_update_firmware()
892 			dev_err(&client->dev,  in elants_i2c_do_update_firmware()
902 	dev_info(&client->dev, "firmware update completed\n");  in elants_i2c_do_update_firmware()
908 	struct i2c_client *client = ts->client;  in elants_i2c_fw_update()  local
917 	dev_info(&client->dev, "requesting fw name = %s\n", fw_name);  in elants_i2c_fw_update()
918 	error = request_firmware(&fw, fw_name, &client->dev);  in elants_i2c_fw_update()
921 		dev_err(&client->dev, "failed to request firmware: %d\n",  in elants_i2c_fw_update()
927 		dev_err(&client->dev, "invalid firmware length: %zu\n",  in elants_i2c_fw_update()
933 	disable_irq(client->irq);  in elants_i2c_fw_update()
935 	error = elants_i2c_do_update_firmware(client, fw,  in elants_i2c_fw_update()
938 		dev_err(&client->dev, "firmware update failed: %d\n", error);  in elants_i2c_fw_update()
945 		dev_err(&client->dev,  in elants_i2c_fw_update()
956 	enable_irq(client->irq);  in elants_i2c_fw_update()
983 	dev_dbg(&ts->client->dev,  in elants_i2c_mt_event()
1017 			dev_dbg(&ts->client->dev, "i=%d x=%d y=%d p=%d w=%d\n",  in elants_i2c_mt_event()
1053 		dev_warn(&ts->client->dev,  in elants_i2c_event()
1058 		dev_warn(&ts->client->dev,  in elants_i2c_event()
1069 	struct i2c_client *client = ts->client;  in elants_i2c_irq()  local
1074 	len = i2c_master_recv_dmasafe(client, ts->buf, sizeof(ts->buf));  in elants_i2c_irq()
1076 		dev_err(&client->dev, "%s: failed to read data: %d\n",  in elants_i2c_irq()
1081 	dev_dbg(&client->dev, "%s: packet %*ph\n",  in elants_i2c_irq()
1109 				dev_err(&client->dev,  in elants_i2c_irq()
1140 				dev_err(&client->dev,  in elants_i2c_irq()
1150 				dev_dbg_once(&client->dev,  in elants_i2c_irq()
1153 				dev_err(&client->dev,  in elants_i2c_irq()
1167 			dev_err(&client->dev, "unknown packet %*ph\n",  in elants_i2c_irq()
1185 	struct i2c_client *client = to_i2c_client(dev);  in calibrate_store()  local
1186 	struct elants_data *ts = i2c_get_clientdata(client);  in calibrate_store()
1203 	struct i2c_client *client = to_i2c_client(dev);  in write_update_fw()  local
1204 	struct elants_data *ts = i2c_get_clientdata(client);  in write_update_fw()
1221 	struct i2c_client *client = to_i2c_client(dev);  in show_iap_mode()  local
1222 	struct elants_data *ts = i2c_get_clientdata(client);  in show_iap_mode()
1232 	struct i2c_client *client = to_i2c_client(dev);  in show_calibration_count()  local
1238 	error = elants_i2c_execute_command(client, cmd, sizeof(cmd),  in show_calibration_count()
1276 	struct i2c_client *client = to_i2c_client(dev);  in elants_version_attribute_show()  local
1277 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_version_attribute_show()
1331 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1339 		dev_err(&ts->client->dev,  in elants_i2c_power_on()
1408 static int elants_i2c_probe(struct i2c_client *client)  in elants_i2c_probe()  argument
1416 	if (elants_acpi_is_hid_device(&client->dev)) {  in elants_i2c_probe()
1417 		dev_warn(&client->dev, "This device appears to be an I2C-HID device, not binding\n");  in elants_i2c_probe()
1421 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {  in elants_i2c_probe()
1422 		dev_err(&client->dev, "I2C check functionality error\n");  in elants_i2c_probe()
1426 	ts = devm_kzalloc(&client->dev, sizeof(struct elants_data), GFP_KERNEL);  in elants_i2c_probe()
1433 	ts->client = client;  in elants_i2c_probe()
1434 	ts->chip_id = (enum elants_chip_id)(uintptr_t)device_get_match_data(&client->dev);  in elants_i2c_probe()
1435 	i2c_set_clientdata(client, ts);  in elants_i2c_probe()
1437 	ts->vcc33 = devm_regulator_get(&client->dev, "vcc33");  in elants_i2c_probe()
1439 		return dev_err_probe(&client->dev, PTR_ERR(ts->vcc33),  in elants_i2c_probe()
1442 	ts->vccio = devm_regulator_get(&client->dev, "vccio");  in elants_i2c_probe()
1444 		return dev_err_probe(&client->dev, PTR_ERR(ts->vccio),  in elants_i2c_probe()
1447 	ts->reset_gpio = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_HIGH);  in elants_i2c_probe()
1455 			dev_err(&client->dev,  in elants_i2c_probe()
1468 	error = devm_add_action_or_reset(&client->dev,  in elants_i2c_probe()
1471 		dev_err(&client->dev,  in elants_i2c_probe()
1477 	if (i2c_smbus_xfer(client->adapter, client->addr, 0,  in elants_i2c_probe()
1479 		dev_err(&client->dev, "nothing at this address\n");  in elants_i2c_probe()
1485 		dev_err(&client->dev, "failed to initialize: %d\n", error);  in elants_i2c_probe()
1489 	ts->input = devm_input_allocate_device(&client->dev);  in elants_i2c_probe()
1491 		dev_err(&client->dev, "Failed to allocate input device\n");  in elants_i2c_probe()
1522 		dev_err(&client->dev,  in elants_i2c_probe()
1529 		dev_err(&client->dev,  in elants_i2c_probe()
1539 	irqflags = irq_get_trigger_type(client->irq);  in elants_i2c_probe()
1543 	error = devm_request_threaded_irq(&client->dev, client->irq,  in elants_i2c_probe()
1546 					  client->name, ts);  in elants_i2c_probe()
1548 		dev_err(&client->dev, "Failed to register interrupt\n");  in elants_i2c_probe()
1557 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_suspend()  local
1558 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_suspend()
1569 	disable_irq(client->irq);  in elants_i2c_suspend()
1579 			error = elants_i2c_send(client, set_sleep_cmd,  in elants_i2c_suspend()
1584 			dev_err(&client->dev,  in elants_i2c_suspend()
1596 	struct i2c_client *client = to_i2c_client(dev);  in elants_i2c_resume()  local
1597 	struct elants_data *ts = i2c_get_clientdata(client);  in elants_i2c_resume()
1605 		elants_i2c_sw_reset(client);  in elants_i2c_resume()
1608 			error = elants_i2c_send(client, set_active_cmd,  in elants_i2c_resume()
1613 			dev_err(&client->dev,  in elants_i2c_resume()
1622 	enable_irq(client->irq);  in elants_i2c_resume()