diff options
Diffstat (limited to 'drivers/hwmon/lis3lv02d_i2c.c')
| -rw-r--r-- | drivers/hwmon/lis3lv02d_i2c.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/drivers/hwmon/lis3lv02d_i2c.c b/drivers/hwmon/lis3lv02d_i2c.c deleted file mode 100644 index dc1f5402c1d..00000000000 --- a/drivers/hwmon/lis3lv02d_i2c.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * drivers/hwmon/lis3lv02d_i2c.c - * - * Implements I2C interface for lis3lv02d (STMicroelectronics) accelerometer. - * Driver is based on corresponding SPI driver written by Daniel Mack - * (lis3lv02d_spi.c (C) 2009 Daniel Mack <daniel@caiaq.de> ). - * - * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). - * - * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include "lis3lv02d.h" - -#define DRV_NAME "lis3lv02d_i2c" - -static inline s32 lis3_i2c_write(struct lis3lv02d *lis3, int reg, u8 value) -{ - struct i2c_client *c = lis3->bus_priv; - return i2c_smbus_write_byte_data(c, reg, value); -} - -static inline s32 lis3_i2c_read(struct lis3lv02d *lis3, int reg, u8 *v) -{ - struct i2c_client *c = lis3->bus_priv; - *v = i2c_smbus_read_byte_data(c, reg); - return 0; -} - -static int lis3_i2c_init(struct lis3lv02d *lis3) -{ - u8 reg; - int ret; - - /* power up the device */ - ret = lis3->read(lis3, CTRL_REG1, ®); - if (ret < 0) - return ret; - - reg |= CTRL1_PD0; - return lis3->write(lis3, CTRL_REG1, reg); -} - -/* Default axis mapping but it can be overwritten by platform data */ -static struct axis_conversion lis3lv02d_axis_map = { LIS3_DEV_X, - LIS3_DEV_Y, - LIS3_DEV_Z }; - -static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - int ret = 0; - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata) { - if (pdata->axis_x) - lis3lv02d_axis_map.x = pdata->axis_x; - - if (pdata->axis_y) - lis3lv02d_axis_map.y = pdata->axis_y; - - if (pdata->axis_z) - lis3lv02d_axis_map.z = pdata->axis_z; - - if (pdata->setup_resources) - ret = pdata->setup_resources(); - - if (ret) - goto fail; - } - - lis3_dev.pdata = pdata; - lis3_dev.bus_priv = client; - lis3_dev.init = lis3_i2c_init; - lis3_dev.read = lis3_i2c_read; - lis3_dev.write = lis3_i2c_write; - lis3_dev.irq = client->irq; - lis3_dev.ac = lis3lv02d_axis_map; - - i2c_set_clientdata(client, &lis3_dev); - ret = lis3lv02d_init_device(&lis3_dev); -fail: - return ret; -} - -static int __devexit lis3lv02d_i2c_remove(struct i2c_client *client) -{ - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata && pdata->release_resources) - pdata->release_resources(); - - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(lis3); - - return lis3lv02d_remove_fs(&lis3_dev); -} - -#ifdef CONFIG_PM -static int lis3lv02d_i2c_suspend(struct i2c_client *client, pm_message_t mesg) -{ - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - if (!lis3->pdata->wakeup_flags) - lis3lv02d_poweroff(lis3); - return 0; -} - -static int lis3lv02d_i2c_resume(struct i2c_client *client) -{ - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - if (!lis3->pdata->wakeup_flags) - lis3lv02d_poweron(lis3); - return 0; -} - -static void lis3lv02d_i2c_shutdown(struct i2c_client *client) -{ - lis3lv02d_i2c_suspend(client, PMSG_SUSPEND); -} -#else -#define lis3lv02d_i2c_suspend NULL -#define lis3lv02d_i2c_resume NULL -#define lis3lv02d_i2c_shutdown NULL -#endif - -static const struct i2c_device_id lis3lv02d_id[] = { - {"lis3lv02d", 0 }, - {} -}; - -MODULE_DEVICE_TABLE(i2c, lis3lv02d_id); - -static struct i2c_driver lis3lv02d_i2c_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, - .suspend = lis3lv02d_i2c_suspend, - .shutdown = lis3lv02d_i2c_shutdown, - .resume = lis3lv02d_i2c_resume, - .probe = lis3lv02d_i2c_probe, - .remove = __devexit_p(lis3lv02d_i2c_remove), - .id_table = lis3lv02d_id, -}; - -static int __init lis3lv02d_init(void) -{ - return i2c_add_driver(&lis3lv02d_i2c_driver); -} - -static void __exit lis3lv02d_exit(void) -{ - i2c_del_driver(&lis3lv02d_i2c_driver); -} - -MODULE_AUTHOR("Nokia Corporation"); -MODULE_DESCRIPTION("lis3lv02d I2C interface"); -MODULE_LICENSE("GPL"); - -module_init(lis3lv02d_init); -module_exit(lis3lv02d_exit); |