| cm32181.c (4f2c0a4acffbec01079c28f839422e64ddeff004) | cm32181.c (ee3c5b644a0fdcfed27515a39fb2dd3a016704c1) |
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| 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (C) 2013 Capella Microsystems Inc. 4 * Author: Kevin Tsai <ktsai@capellamicro.com> 5 */ 6 7#include <linux/acpi.h> 8#include <linux/delay.h> --- 426 unchanged lines hidden (view full) --- 435 struct cm32181_chip *cm32181; 436 struct iio_dev *indio_dev; 437 int ret; 438 439 indio_dev = devm_iio_device_alloc(dev, sizeof(*cm32181)); 440 if (!indio_dev) 441 return -ENOMEM; 442 | 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (C) 2013 Capella Microsystems Inc. 4 * Author: Kevin Tsai <ktsai@capellamicro.com> 5 */ 6 7#include <linux/acpi.h> 8#include <linux/delay.h> --- 426 unchanged lines hidden (view full) --- 435 struct cm32181_chip *cm32181; 436 struct iio_dev *indio_dev; 437 int ret; 438 439 indio_dev = devm_iio_device_alloc(dev, sizeof(*cm32181)); 440 if (!indio_dev) 441 return -ENOMEM; 442 |
| 443 i2c_set_clientdata(client, indio_dev); 444 |
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| 443 /* 444 * Some ACPI systems list 2 I2C resources for the CM3218 sensor, the 445 * SMBus Alert Response Address (ARA, 0x0c) and the actual I2C address. 446 * Detect this and take the following step to deal with it: 447 * 1. When a SMBus Alert capable sensor has an Alert asserted, it will 448 * not respond on its actual I2C address. Read a byte from the ARA 449 * to clear any pending Alerts. 450 * 2. Create a "dummy" client for the actual I2C address and --- 4 unchanged lines hidden (view full) --- 455 456 i2c_smbus_read_byte(client); 457 458 client = i2c_acpi_new_device(dev, 1, &board_info); 459 if (IS_ERR(client)) 460 return PTR_ERR(client); 461 } 462 | 445 /* 446 * Some ACPI systems list 2 I2C resources for the CM3218 sensor, the 447 * SMBus Alert Response Address (ARA, 0x0c) and the actual I2C address. 448 * Detect this and take the following step to deal with it: 449 * 1. When a SMBus Alert capable sensor has an Alert asserted, it will 450 * not respond on its actual I2C address. Read a byte from the ARA 451 * to clear any pending Alerts. 452 * 2. Create a "dummy" client for the actual I2C address and --- 4 unchanged lines hidden (view full) --- 457 458 i2c_smbus_read_byte(client); 459 460 client = i2c_acpi_new_device(dev, 1, &board_info); 461 if (IS_ERR(client)) 462 return PTR_ERR(client); 463 } 464 |
| 463 i2c_set_clientdata(client, indio_dev); 464 | |
| 465 cm32181 = iio_priv(indio_dev); 466 cm32181->client = client; 467 cm32181->dev = dev; 468 469 mutex_init(&cm32181->lock); 470 indio_dev->channels = cm32181_channels; 471 indio_dev->num_channels = ARRAY_SIZE(cm32181_channels); 472 indio_dev->info = &cm32181_info; --- 12 unchanged lines hidden (view full) --- 485 return ret; 486 } 487 488 return 0; 489} 490 491static int cm32181_suspend(struct device *dev) 492{ | 465 cm32181 = iio_priv(indio_dev); 466 cm32181->client = client; 467 cm32181->dev = dev; 468 469 mutex_init(&cm32181->lock); 470 indio_dev->channels = cm32181_channels; 471 indio_dev->num_channels = ARRAY_SIZE(cm32181_channels); 472 indio_dev->info = &cm32181_info; --- 12 unchanged lines hidden (view full) --- 485 return ret; 486 } 487 488 return 0; 489} 490 491static int cm32181_suspend(struct device *dev) 492{ |
| 493 struct i2c_client *client = to_i2c_client(dev); | 493 struct cm32181_chip *cm32181 = iio_priv(dev_get_drvdata(dev)); 494 struct i2c_client *client = cm32181->client; |
| 494 495 return i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD, 496 CM32181_CMD_ALS_DISABLE); 497} 498 499static int cm32181_resume(struct device *dev) 500{ | 495 496 return i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD, 497 CM32181_CMD_ALS_DISABLE); 498} 499 500static int cm32181_resume(struct device *dev) 501{ |
| 501 struct i2c_client *client = to_i2c_client(dev); | |
| 502 struct cm32181_chip *cm32181 = iio_priv(dev_get_drvdata(dev)); | 502 struct cm32181_chip *cm32181 = iio_priv(dev_get_drvdata(dev)); |
| 503 struct i2c_client *client = cm32181->client; |
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| 503 504 return i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD, 505 cm32181->conf_regs[CM32181_REG_ADDR_CMD]); 506} 507 508static DEFINE_SIMPLE_DEV_PM_OPS(cm32181_pm_ops, cm32181_suspend, cm32181_resume); 509 510static const struct of_device_id cm32181_of_match[] = { --- 29 unchanged lines hidden --- | 504 505 return i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD, 506 cm32181->conf_regs[CM32181_REG_ADDR_CMD]); 507} 508 509static DEFINE_SIMPLE_DEV_PM_OPS(cm32181_pm_ops, cm32181_suspend, cm32181_resume); 510 511static const struct of_device_id cm32181_of_match[] = { --- 29 unchanged lines hidden --- |