stk8312.c (6839c1b0700a79375639528985a0ec0fbd58cf9a) stk8312.c (0f0796509c07c1c7b77671c05b2955beb245e367)
1/**
2 * Sensortek STK8312 3-Axis Accelerometer
3 *
4 * Copyright (c) 2015, Intel Corporation.
5 *
6 * This file is subject to the terms and conditions of version 2 of
7 * the GNU General Public License. See the file COPYING in the main
8 * directory of this archive for more details.

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45#define STK8312_RNG_SHIFT 6
46#define STK8312_RNG_MASK GENMASK(7, 6)
47#define STK8312_SR_MASK GENMASK(2, 0)
48#define STK8312_SR_400HZ_IDX 0
49#define STK8312_ALL_CHANNEL_MASK GENMASK(2, 0)
50#define STK8312_ALL_CHANNEL_SIZE 3
51
52#define STK8312_DRIVER_NAME "stk8312"
1/**
2 * Sensortek STK8312 3-Axis Accelerometer
3 *
4 * Copyright (c) 2015, Intel Corporation.
5 *
6 * This file is subject to the terms and conditions of version 2 of
7 * the GNU General Public License. See the file COPYING in the main
8 * directory of this archive for more details.

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45#define STK8312_RNG_SHIFT 6
46#define STK8312_RNG_MASK GENMASK(7, 6)
47#define STK8312_SR_MASK GENMASK(2, 0)
48#define STK8312_SR_400HZ_IDX 0
49#define STK8312_ALL_CHANNEL_MASK GENMASK(2, 0)
50#define STK8312_ALL_CHANNEL_SIZE 3
51
52#define STK8312_DRIVER_NAME "stk8312"
53#define STK8312_GPIO "stk8312_gpio"
54#define STK8312_IRQ_NAME "stk8312_event"
55
56/*
57 * The accelerometer has two measurement ranges:
58 *
59 * -6g - +6g (8-bit, signed)
60 * -16g - +16g (8-bit, signed)
61 *

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499
500static const struct iio_buffer_setup_ops stk8312_buffer_setup_ops = {
501 .preenable = stk8312_buffer_preenable,
502 .postenable = iio_triggered_buffer_postenable,
503 .predisable = iio_triggered_buffer_predisable,
504 .postdisable = stk8312_buffer_postdisable,
505};
506
53#define STK8312_IRQ_NAME "stk8312_event"
54
55/*
56 * The accelerometer has two measurement ranges:
57 *
58 * -6g - +6g (8-bit, signed)
59 * -16g - +16g (8-bit, signed)
60 *

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498
499static const struct iio_buffer_setup_ops stk8312_buffer_setup_ops = {
500 .preenable = stk8312_buffer_preenable,
501 .postenable = iio_triggered_buffer_postenable,
502 .predisable = iio_triggered_buffer_predisable,
503 .postdisable = stk8312_buffer_postdisable,
504};
505
507static int stk8312_gpio_probe(struct i2c_client *client)
508{
509 struct device *dev;
510 struct gpio_desc *gpio;
511 int ret;
512
513 if (!client)
514 return -EINVAL;
515
516 dev = &client->dev;
517
518 /* data ready gpio interrupt pin */
519 gpio = devm_gpiod_get_index(dev, STK8312_GPIO, 0, GPIOD_IN);
520 if (IS_ERR(gpio)) {
521 dev_err(dev, "acpi gpio get index failed\n");
522 return PTR_ERR(gpio);
523 }
524
525 ret = gpiod_to_irq(gpio);
526 dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
527
528 return ret;
529}
530
531static int stk8312_probe(struct i2c_client *client,
532 const struct i2c_device_id *id)
533{
534 int ret;
535 struct iio_dev *indio_dev;
536 struct stk8312_data *data;
537
538 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));

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564 if (ret < 0)
565 return ret;
566
567 ret = stk8312_set_mode(data,
568 STK8312_MODE_INT_AH_PP | STK8312_MODE_ACTIVE);
569 if (ret < 0)
570 return ret;
571
506static int stk8312_probe(struct i2c_client *client,
507 const struct i2c_device_id *id)
508{
509 int ret;
510 struct iio_dev *indio_dev;
511 struct stk8312_data *data;
512
513 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));

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539 if (ret < 0)
540 return ret;
541
542 ret = stk8312_set_mode(data,
543 STK8312_MODE_INT_AH_PP | STK8312_MODE_ACTIVE);
544 if (ret < 0)
545 return ret;
546
572 if (client->irq < 0)
573 client->irq = stk8312_gpio_probe(client);
574
575 if (client->irq > 0) {
576 ret = devm_request_threaded_irq(&client->dev, client->irq,
577 stk8312_data_rdy_trig_poll,
578 NULL,
579 IRQF_TRIGGER_RISING |
580 IRQF_ONESHOT,
581 STK8312_IRQ_NAME,
582 indio_dev);

--- 121 unchanged lines hidden --- 		547 if (client->irq > 0) {
548 ret = devm_request_threaded_irq(&client->dev, client->irq,
549 stk8312_data_rdy_trig_poll,
550 NULL,
551 IRQF_TRIGGER_RISING |
552 IRQF_ONESHOT,
553 STK8312_IRQ_NAME,
554 indio_dev);

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