cregit-Linux how code gets into the kernel

Release 4.11 drivers/input/misc/ad714x-i2c.c

/*
 * AD714X CapTouch Programmable Controller driver (I2C bus)
 *
 * Copyright 2009-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/input.h>	/* BUS_I2C */
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/pm.h>
#include "ad714x.h"


static int __maybe_unused ad714x_i2c_suspend(struct device *dev) { return ad714x_disable(i2c_get_clientdata(to_i2c_client(dev))); }

Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu1770.83%133.33%
Mark Brown625.00%133.33%
Jingoo Han14.17%133.33%
Total24100.00%3100.00%


static int __maybe_unused ad714x_i2c_resume(struct device *dev) { return ad714x_enable(i2c_get_clientdata(to_i2c_client(dev))); }

Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu1770.83%133.33%
Mark Brown625.00%133.33%
Jingoo Han14.17%133.33%
Total24100.00%3100.00%

static SIMPLE_DEV_PM_OPS(ad714x_i2c_pm, ad714x_i2c_suspend, ad714x_i2c_resume);
static int ad714x_i2c_write(struct ad714x_chip *chip, unsigned short reg, unsigned short data) { struct i2c_client *client = to_i2c_client(chip->dev); int error; chip->xfer_buf[0] = cpu_to_be16(reg); chip->xfer_buf[1] = cpu_to_be16(data); error = i2c_master_send(client, (u8 *)chip->xfer_buf, 2 * sizeof(*chip->xfer_buf)); if (unlikely(error < 0)) { dev_err(&client->dev, "I2C write error: %d\n", error); return error; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu5952.68%133.33%
Dmitry Torokhov4237.50%133.33%
Michael Hennerich119.82%133.33%
Total112100.00%3100.00%


static int ad714x_i2c_read(struct ad714x_chip *chip, unsigned short reg, unsigned short *data, size_t len) { struct i2c_client *client = to_i2c_client(chip->dev); int i; int error; chip->xfer_buf[0] = cpu_to_be16(reg); error = i2c_master_send(client, (u8 *)chip->xfer_buf, sizeof(*chip->xfer_buf)); if (error >= 0) error = i2c_master_recv(client, (u8 *)chip->xfer_buf, len * sizeof(*chip->xfer_buf)); if (unlikely(error < 0)) { dev_err(&client->dev, "I2C read error: %d\n", error); return error; } for (i = 0; i < len; i++) data[i] = be16_to_cpu(chip->xfer_buf[i]); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu8350.61%125.00%
Dmitry Torokhov4426.83%125.00%
Michael Hennerich3722.56%250.00%
Total164100.00%4100.00%


static int ad714x_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct ad714x_chip *chip; chip = ad714x_probe(&client->dev, BUS_I2C, client->irq, ad714x_i2c_read, ad714x_i2c_write); if (IS_ERR(chip)) return PTR_ERR(chip); i2c_set_clientdata(client, chip); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu65100.00%1100.00%
Total65100.00%1100.00%

static const struct i2c_device_id ad714x_id[] = { { "ad7142_captouch", 0 }, { "ad7143_captouch", 0 }, { "ad7147_captouch", 0 }, { "ad7147a_captouch", 0 }, { "ad7148_captouch", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, ad714x_id); static struct i2c_driver ad714x_i2c_driver = { .driver = { .name = "ad714x_captouch", .pm = &ad714x_i2c_pm, }, .probe = ad714x_i2c_probe, .id_table = ad714x_id, }; module_i2c_driver(ad714x_i2c_driver); MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver"); MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Bryan Wu33364.04%112.50%
Dmitry Torokhov8616.54%112.50%
Michael Hennerich499.42%225.00%
Mark Brown315.96%112.50%
Barry Song183.46%112.50%
Jingoo Han20.38%112.50%
Axel Lin10.19%112.50%
Total520100.00%8100.00%
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