diff options
Diffstat (limited to 'drivers/hwmon/twl4030-madc-hwmon.c')
| -rw-r--r-- | drivers/hwmon/twl4030-madc-hwmon.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c deleted file mode 100644 index 6c6d440bb2dd..000000000000 --- a/drivers/hwmon/twl4030-madc-hwmon.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * - * TWL4030 MADC Hwmon driver-This driver monitors the real time - * conversion of analog signals like battery temperature, - * battery type, battery level etc. User can ask for the conversion on a - * particular channel using the sysfs nodes. - * - * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ - * J Keerthy <j-keerthy@ti.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/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/i2c/twl.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/i2c/twl4030-madc.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/stddef.h> -#include <linux/sysfs.h> -#include <linux/err.h> -#include <linux/types.h> - -/* - * sysfs hook function - */ -static ssize_t madc_read(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct twl4030_madc_request req = { - .channels = 1 << attr->index, - .method = TWL4030_MADC_SW2, - .type = TWL4030_MADC_WAIT, - }; - long val; - - val = twl4030_madc_conversion(&req); - if (val < 0) - return val; - - return sprintf(buf, "%d\n", req.rbuf[attr->index]); -} - -/* sysfs nodes to read individual channels from user side */ -static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, madc_read, NULL, 0); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, madc_read, NULL, 1); -static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, madc_read, NULL, 2); -static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, madc_read, NULL, 3); -static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, madc_read, NULL, 4); -static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, madc_read, NULL, 5); -static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, madc_read, NULL, 6); -static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, madc_read, NULL, 7); -static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, madc_read, NULL, 8); -static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, madc_read, NULL, 9); -static SENSOR_DEVICE_ATTR(curr10_input, S_IRUGO, madc_read, NULL, 10); -static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, madc_read, NULL, 11); -static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, madc_read, NULL, 12); -static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, madc_read, NULL, 15); - -static struct attribute *twl4030_madc_attributes[] = { - &sensor_dev_attr_in0_input.dev_attr.attr, - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_in2_input.dev_attr.attr, - &sensor_dev_attr_in3_input.dev_attr.attr, - &sensor_dev_attr_in4_input.dev_attr.attr, - &sensor_dev_attr_in5_input.dev_attr.attr, - &sensor_dev_attr_in6_input.dev_attr.attr, - &sensor_dev_attr_in7_input.dev_attr.attr, - &sensor_dev_attr_in8_input.dev_attr.attr, - &sensor_dev_attr_in9_input.dev_attr.attr, - &sensor_dev_attr_curr10_input.dev_attr.attr, - &sensor_dev_attr_in11_input.dev_attr.attr, - &sensor_dev_attr_in12_input.dev_attr.attr, - &sensor_dev_attr_in15_input.dev_attr.attr, - NULL -}; - -static const struct attribute_group twl4030_madc_group = { - .attrs = twl4030_madc_attributes, -}; - -static int twl4030_madc_hwmon_probe(struct platform_device *pdev) -{ - int ret; - struct device *hwmon; - - ret = sysfs_create_group(&pdev->dev.kobj, &twl4030_madc_group); - if (ret) - goto err_sysfs; - hwmon = hwmon_device_register(&pdev->dev); - if (IS_ERR(hwmon)) { - dev_err(&pdev->dev, "hwmon_device_register failed.\n"); - ret = PTR_ERR(hwmon); - goto err_reg; - } - - return 0; - -err_reg: - sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); -err_sysfs: - - return ret; -} - -static int twl4030_madc_hwmon_remove(struct platform_device *pdev) -{ - hwmon_device_unregister(&pdev->dev); - sysfs_remove_group(&pdev->dev.kobj, &twl4030_madc_group); - - return 0; -} - -static struct platform_driver twl4030_madc_hwmon_driver = { - .probe = twl4030_madc_hwmon_probe, - .remove = twl4030_madc_hwmon_remove, - .driver = { - .name = "twl4030_madc_hwmon", - .owner = THIS_MODULE, - }, -}; - -module_platform_driver(twl4030_madc_hwmon_driver); - -MODULE_DESCRIPTION("TWL4030 ADC Hwmon driver"); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("J Keerthy"); -MODULE_ALIAS("platform:twl4030_madc_hwmon"); |