+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson 2010 - 2013
- * Author: Martin Persson <martin.persson@stericsson.com>
- * Hongbo Zhang <hongbo.zhang@linaro.org>
- *
- * When the AB8500 thermal warning temperature is reached (threshold cannot
- * be changed by SW), an interrupt is set, and if no further action is taken
- * within a certain time frame, kernel_power_off will be called.
- *
- * When AB8500 thermal shutdown temperature is reached a hardware shutdown of
- * the AB8500 will occur.
- */
-
-#include <linux/err.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-#include <linux/mfd/abx500.h>
-#include <linux/mfd/abx500/ab8500-bm.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/power/ab8500.h>
-#include <linux/reboot.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/iio/consumer.h>
-#include "abx500.h"
-
-#define DEFAULT_POWER_OFF_DELAY (HZ * 10)
-#define THERMAL_VCC 1800
-#define PULL_UP_RESISTOR 47000
-
-#define AB8500_SENSOR_AUX1 0
-#define AB8500_SENSOR_AUX2 1
-#define AB8500_SENSOR_BTEMP_BALL 2
-#define AB8500_SENSOR_BAT_CTRL 3
-#define NUM_MONITORED_SENSORS 4
-
-struct ab8500_gpadc_cfg {
- const struct abx500_res_to_temp *temp_tbl;
- int tbl_sz;
- int vcc;
- int r_up;
-};
-
-struct ab8500_temp {
- struct iio_channel *aux1;
- struct iio_channel *aux2;
- struct ab8500_btemp *btemp;
- struct delayed_work power_off_work;
- struct ab8500_gpadc_cfg cfg;
- struct abx500_temp *abx500_data;
-};
-
-/*
- * The hardware connection is like this:
- * VCC----[ R_up ]-----[ NTC ]----GND
- * where R_up is pull-up resistance, and GPADC measures voltage on NTC.
- * and res_to_temp table is strictly sorted by falling resistance values.
- */
-static int ab8500_voltage_to_temp(struct ab8500_gpadc_cfg *cfg,
- int v_ntc, int *temp)
-{
- int r_ntc, i = 0, tbl_sz = cfg->tbl_sz;
- const struct abx500_res_to_temp *tbl = cfg->temp_tbl;
-
- if (cfg->vcc < 0 || v_ntc >= cfg->vcc)
- return -EINVAL;
-
- r_ntc = v_ntc * cfg->r_up / (cfg->vcc - v_ntc);
- if (r_ntc > tbl[0].resist || r_ntc < tbl[tbl_sz - 1].resist)
- return -EINVAL;
-
- while (!(r_ntc <= tbl[i].resist && r_ntc > tbl[i + 1].resist) &&
- i < tbl_sz - 2)
- i++;
-
- /* return milli-Celsius */
- *temp = tbl[i].temp * 1000 + ((tbl[i + 1].temp - tbl[i].temp) * 1000 *
- (r_ntc - tbl[i].resist)) / (tbl[i + 1].resist - tbl[i].resist);
-
- return 0;
-}
-
-static int ab8500_read_sensor(struct abx500_temp *data, u8 sensor, int *temp)
-{
- int voltage, ret;
- struct ab8500_temp *ab8500_data = data->plat_data;
-
- if (sensor == AB8500_SENSOR_BTEMP_BALL) {
- *temp = ab8500_btemp_get_temp(ab8500_data->btemp);
- } else if (sensor == AB8500_SENSOR_BAT_CTRL) {
- *temp = ab8500_btemp_get_batctrl_temp(ab8500_data->btemp);
- } else if (sensor == AB8500_SENSOR_AUX1) {
- ret = iio_read_channel_processed(ab8500_data->aux1, &voltage);
- if (ret < 0)
- return ret;
- ret = ab8500_voltage_to_temp(&ab8500_data->cfg, voltage, temp);
- if (ret < 0)
- return ret;
- } else if (sensor == AB8500_SENSOR_AUX2) {
- ret = iio_read_channel_processed(ab8500_data->aux2, &voltage);
- if (ret < 0)
- return ret;
- ret = ab8500_voltage_to_temp(&ab8500_data->cfg, voltage, temp);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-
-static void ab8500_thermal_power_off(struct work_struct *work)
-{
- struct ab8500_temp *ab8500_data = container_of(work,
- struct ab8500_temp, power_off_work.work);
- struct abx500_temp *abx500_data = ab8500_data->abx500_data;
-
- dev_warn(&abx500_data->pdev->dev, "Power off due to critical temp\n");
-
- kernel_power_off();
-}
-
-static ssize_t ab8500_show_name(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- return sprintf(buf, "ab8500\n");
-}
-
-static ssize_t ab8500_show_label(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- char *label;
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- int index = attr->index;
-
- switch (index) {
- case 1:
- label = "ext_adc1";
- break;
- case 2:
- label = "ext_adc2";
- break;
- case 3:
- label = "bat_temp";
- break;
- case 4:
- label = "bat_ctrl";
- break;
- default:
- return -EINVAL;
- }
-
- return sprintf(buf, "%s\n", label);
-}
-
-static int ab8500_temp_irq_handler(int irq, struct abx500_temp *data)
-{
- struct ab8500_temp *ab8500_data = data->plat_data;
-
- dev_warn(&data->pdev->dev, "Power off in %d s\n",
- DEFAULT_POWER_OFF_DELAY / HZ);
-
- schedule_delayed_work(&ab8500_data->power_off_work,
- DEFAULT_POWER_OFF_DELAY);
- return 0;
-}
-
-int abx500_hwmon_init(struct abx500_temp *data)
-{
- struct ab8500_temp *ab8500_data;
-
- ab8500_data = devm_kzalloc(&data->pdev->dev, sizeof(*ab8500_data),
- GFP_KERNEL);
- if (!ab8500_data)
- return -ENOMEM;
-
- ab8500_data->btemp = ab8500_btemp_get();
- if (IS_ERR(ab8500_data->btemp))
- return PTR_ERR(ab8500_data->btemp);
-
- INIT_DELAYED_WORK(&ab8500_data->power_off_work,
- ab8500_thermal_power_off);
-
- ab8500_data->cfg.vcc = THERMAL_VCC;
- ab8500_data->cfg.r_up = PULL_UP_RESISTOR;
- ab8500_data->cfg.temp_tbl = ab8500_temp_tbl_a_thermistor;
- ab8500_data->cfg.tbl_sz = ab8500_temp_tbl_a_size;
-
- data->plat_data = ab8500_data;
- ab8500_data->aux1 = devm_iio_channel_get(&data->pdev->dev, "aux1");
- if (IS_ERR(ab8500_data->aux1)) {
- if (PTR_ERR(ab8500_data->aux1) == -ENODEV)
- return -EPROBE_DEFER;
- dev_err(&data->pdev->dev, "failed to get AUX1 ADC channel\n");
- return PTR_ERR(ab8500_data->aux1);
- }
- ab8500_data->aux2 = devm_iio_channel_get(&data->pdev->dev, "aux2");
- if (IS_ERR(ab8500_data->aux2)) {
- if (PTR_ERR(ab8500_data->aux2) == -ENODEV)
- return -EPROBE_DEFER;
- dev_err(&data->pdev->dev, "failed to get AUX2 ADC channel\n");
- return PTR_ERR(ab8500_data->aux2);
- }
-
- data->gpadc_addr[0] = AB8500_SENSOR_AUX1;
- data->gpadc_addr[1] = AB8500_SENSOR_AUX2;
- data->gpadc_addr[2] = AB8500_SENSOR_BTEMP_BALL;
- data->gpadc_addr[3] = AB8500_SENSOR_BAT_CTRL;
- data->monitored_sensors = NUM_MONITORED_SENSORS;
-
- data->ops.read_sensor = ab8500_read_sensor;
- data->ops.irq_handler = ab8500_temp_irq_handler;
- data->ops.show_name = ab8500_show_name;
- data->ops.show_label = ab8500_show_label;
- data->ops.is_visible = NULL;
-
- return 0;
-}
-EXPORT_SYMBOL(abx500_hwmon_init);
-
-MODULE_AUTHOR("Hongbo Zhang <hongbo.zhang@linaro.org>");
-MODULE_DESCRIPTION("AB8500 temperature driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson 2010 - 2013
- * Author: Martin Persson <martin.persson@stericsson.com>
- * Hongbo Zhang <hongbo.zhang@linaro.org>
- *
- * ABX500 does not provide auto ADC, so to monitor the required temperatures,
- * a periodic work is used. It is more important to not wake up the CPU than
- * to perform this job, hence the use of a deferred delay.
- *
- * A deferred delay for thermal monitor is considered safe because:
- * If the chip gets too hot during a sleep state it's most likely due to
- * external factors, such as the surrounding temperature. I.e. no SW decisions
- * will make any difference.
- */
-
-#include <linux/err.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-#include <linux/interrupt.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/pm.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/workqueue.h>
-#include "abx500.h"
-
-#define DEFAULT_MONITOR_DELAY HZ
-#define DEFAULT_MAX_TEMP 130
-
-static inline void schedule_monitor(struct abx500_temp *data)
-{
- data->work_active = true;
- schedule_delayed_work(&data->work, DEFAULT_MONITOR_DELAY);
-}
-
-static void threshold_updated(struct abx500_temp *data)
-{
- int i;
- for (i = 0; i < data->monitored_sensors; i++)
- if (data->max[i] != 0 || data->min[i] != 0) {
- schedule_monitor(data);
- return;
- }
-
- dev_dbg(&data->pdev->dev, "No active thresholds.\n");
- cancel_delayed_work_sync(&data->work);
- data->work_active = false;
-}
-
-static void gpadc_monitor(struct work_struct *work)
-{
- int temp, i, ret;
- char alarm_node[30];
- bool updated_min_alarm, updated_max_alarm;
- struct abx500_temp *data;
-
- data = container_of(work, struct abx500_temp, work.work);
- mutex_lock(&data->lock);
-
- for (i = 0; i < data->monitored_sensors; i++) {
- /* Thresholds are considered inactive if set to 0 */
- if (data->max[i] == 0 && data->min[i] == 0)
- continue;
-
- if (data->max[i] < data->min[i])
- continue;
-
- ret = data->ops.read_sensor(data, data->gpadc_addr[i], &temp);
- if (ret < 0) {
- dev_err(&data->pdev->dev, "GPADC read failed\n");
- continue;
- }
-
- updated_min_alarm = false;
- updated_max_alarm = false;
-
- if (data->min[i] != 0) {
- if (temp < data->min[i]) {
- if (data->min_alarm[i] == false) {
- data->min_alarm[i] = true;
- updated_min_alarm = true;
- }
- } else {
- if (data->min_alarm[i] == true) {
- data->min_alarm[i] = false;
- updated_min_alarm = true;
- }
- }
- }
- if (data->max[i] != 0) {
- if (temp > data->max[i]) {
- if (data->max_alarm[i] == false) {
- data->max_alarm[i] = true;
- updated_max_alarm = true;
- }
- } else if (temp < data->max[i] - data->max_hyst[i]) {
- if (data->max_alarm[i] == true) {
- data->max_alarm[i] = false;
- updated_max_alarm = true;
- }
- }
- }
-
- if (updated_min_alarm) {
- ret = sprintf(alarm_node, "temp%d_min_alarm", i + 1);
- sysfs_notify(&data->pdev->dev.kobj, NULL, alarm_node);
- }
- if (updated_max_alarm) {
- ret = sprintf(alarm_node, "temp%d_max_alarm", i + 1);
- sysfs_notify(&data->pdev->dev.kobj, NULL, alarm_node);
- }
- }
-
- schedule_monitor(data);
- mutex_unlock(&data->lock);
-}
-
-/* HWMON sysfs interfaces */
-static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- /* Show chip name */
- return data->ops.show_name(dev, devattr, buf);
-}
-
-static ssize_t label_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- /* Show each sensor label */
- return data->ops.show_label(dev, devattr, buf);
-}
-
-static ssize_t input_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- int ret, temp;
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- u8 gpadc_addr = data->gpadc_addr[attr->index];
-
- ret = data->ops.read_sensor(data, gpadc_addr, &temp);
- if (ret < 0)
- return ret;
-
- return sprintf(buf, "%d\n", temp);
-}
-
-/* Set functions (RW nodes) */
-static ssize_t min_store(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
-{
- unsigned long val;
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- int res = kstrtol(buf, 10, &val);
- if (res < 0)
- return res;
-
- val = clamp_val(val, 0, DEFAULT_MAX_TEMP);
-
- mutex_lock(&data->lock);
- data->min[attr->index] = val;
- threshold_updated(data);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t max_store(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
-{
- unsigned long val;
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- int res = kstrtol(buf, 10, &val);
- if (res < 0)
- return res;
-
- val = clamp_val(val, 0, DEFAULT_MAX_TEMP);
-
- mutex_lock(&data->lock);
- data->max[attr->index] = val;
- threshold_updated(data);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-static ssize_t max_hyst_store(struct device *dev,
- struct device_attribute *devattr,
- const char *buf, size_t count)
-{
- unsigned long val;
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- int res = kstrtoul(buf, 10, &val);
- if (res < 0)
- return res;
-
- val = clamp_val(val, 0, DEFAULT_MAX_TEMP);
-
- mutex_lock(&data->lock);
- data->max_hyst[attr->index] = val;
- threshold_updated(data);
- mutex_unlock(&data->lock);
-
- return count;
-}
-
-/* Show functions (RO nodes) */
-static ssize_t min_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-
- return sprintf(buf, "%lu\n", data->min[attr->index]);
-}
-
-static ssize_t max_show(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-
- return sprintf(buf, "%lu\n", data->max[attr->index]);
-}
-
-static ssize_t max_hyst_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-
- return sprintf(buf, "%lu\n", data->max_hyst[attr->index]);
-}
-
-static ssize_t min_alarm_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-
- return sprintf(buf, "%d\n", data->min_alarm[attr->index]);
-}
-
-static ssize_t max_alarm_show(struct device *dev,
- struct device_attribute *devattr, char *buf)
-{
- struct abx500_temp *data = dev_get_drvdata(dev);
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
-
- return sprintf(buf, "%d\n", data->max_alarm[attr->index]);
-}
-
-static umode_t abx500_attrs_visible(struct kobject *kobj,
- struct attribute *attr, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
- struct abx500_temp *data = dev_get_drvdata(dev);
-
- if (data->ops.is_visible)
- return data->ops.is_visible(attr, n);
-
- return attr->mode;
-}
-
-/* Chip name, required by hwmon */
-static SENSOR_DEVICE_ATTR_RO(name, name, 0);
-
-/* GPADC - SENSOR1 */
-static SENSOR_DEVICE_ATTR_RO(temp1_label, label, 0);
-static SENSOR_DEVICE_ATTR_RO(temp1_input, input, 0);
-static SENSOR_DEVICE_ATTR_RW(temp1_min, min, 0);
-static SENSOR_DEVICE_ATTR_RW(temp1_max, max, 0);
-static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, max_hyst, 0);
-static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, min_alarm, 0);
-static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, max_alarm, 0);
-
-/* GPADC - SENSOR2 */
-static SENSOR_DEVICE_ATTR_RO(temp2_label, label, 1);
-static SENSOR_DEVICE_ATTR_RO(temp2_input, input, 1);
-static SENSOR_DEVICE_ATTR_RW(temp2_min, min, 1);
-static SENSOR_DEVICE_ATTR_RW(temp2_max, max, 1);
-static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, max_hyst, 1);
-static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, min_alarm, 1);
-static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, max_alarm, 1);
-
-/* GPADC - SENSOR3 */
-static SENSOR_DEVICE_ATTR_RO(temp3_label, label, 2);
-static SENSOR_DEVICE_ATTR_RO(temp3_input, input, 2);
-static SENSOR_DEVICE_ATTR_RW(temp3_min, min, 2);
-static SENSOR_DEVICE_ATTR_RW(temp3_max, max, 2);
-static SENSOR_DEVICE_ATTR_RW(temp3_max_hyst, max_hyst, 2);
-static SENSOR_DEVICE_ATTR_RO(temp3_min_alarm, min_alarm, 2);
-static SENSOR_DEVICE_ATTR_RO(temp3_max_alarm, max_alarm, 2);
-
-/* GPADC - SENSOR4 */
-static SENSOR_DEVICE_ATTR_RO(temp4_label, label, 3);
-static SENSOR_DEVICE_ATTR_RO(temp4_input, input, 3);
-static SENSOR_DEVICE_ATTR_RW(temp4_min, min, 3);
-static SENSOR_DEVICE_ATTR_RW(temp4_max, max, 3);
-static SENSOR_DEVICE_ATTR_RW(temp4_max_hyst, max_hyst, 3);
-static SENSOR_DEVICE_ATTR_RO(temp4_min_alarm, min_alarm, 3);
-static SENSOR_DEVICE_ATTR_RO(temp4_max_alarm, max_alarm, 3);
-
-static struct attribute *abx500_temp_attributes[] = {
- &sensor_dev_attr_name.dev_attr.attr,
-
- &sensor_dev_attr_temp1_label.dev_attr.attr,
- &sensor_dev_attr_temp1_input.dev_attr.attr,
- &sensor_dev_attr_temp1_min.dev_attr.attr,
- &sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
- &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
-
- &sensor_dev_attr_temp2_label.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
- &sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
- &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
-
- &sensor_dev_attr_temp3_label.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr,
- &sensor_dev_attr_temp3_min.dev_attr.attr,
- &sensor_dev_attr_temp3_max.dev_attr.attr,
- &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
- &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
-
- &sensor_dev_attr_temp4_label.dev_attr.attr,
- &sensor_dev_attr_temp4_input.dev_attr.attr,
- &sensor_dev_attr_temp4_min.dev_attr.attr,
- &sensor_dev_attr_temp4_max.dev_attr.attr,
- &sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
- &sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
- &sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
- NULL
-};
-
-static const struct attribute_group abx500_temp_group = {
- .attrs = abx500_temp_attributes,
- .is_visible = abx500_attrs_visible,
-};
-
-static irqreturn_t abx500_temp_irq_handler(int irq, void *irq_data)
-{
- struct platform_device *pdev = irq_data;
- struct abx500_temp *data = platform_get_drvdata(pdev);
-
- data->ops.irq_handler(irq, data);
- return IRQ_HANDLED;
-}
-
-static int setup_irqs(struct platform_device *pdev)
-{
- int ret;
- int irq = platform_get_irq_byname(pdev, "ABX500_TEMP_WARM");
-
- if (irq < 0) {
- dev_err(&pdev->dev, "Get irq by name failed\n");
- return irq;
- }
-
- ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
- abx500_temp_irq_handler, 0, "abx500-temp", pdev);
- if (ret < 0)
- dev_err(&pdev->dev, "Request threaded irq failed (%d)\n", ret);
-
- return ret;
-}
-
-static int abx500_temp_probe(struct platform_device *pdev)
-{
- struct abx500_temp *data;
- int err;
-
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- data->pdev = pdev;
- mutex_init(&data->lock);
-
- /* Chip specific initialization */
- err = abx500_hwmon_init(data);
- if (err < 0 || !data->ops.read_sensor || !data->ops.show_name ||
- !data->ops.show_label)
- return err;
-
- INIT_DEFERRABLE_WORK(&data->work, gpadc_monitor);
-
- platform_set_drvdata(pdev, data);
-
- err = sysfs_create_group(&pdev->dev.kobj, &abx500_temp_group);
- if (err < 0) {
- dev_err(&pdev->dev, "Create sysfs group failed (%d)\n", err);
- return err;
- }
-
- data->hwmon_dev = hwmon_device_register(&pdev->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
- goto exit_sysfs_group;
- }
-
- if (data->ops.irq_handler) {
- err = setup_irqs(pdev);
- if (err < 0)
- goto exit_hwmon_reg;
- }
- return 0;
-
-exit_hwmon_reg:
- hwmon_device_unregister(data->hwmon_dev);
-exit_sysfs_group:
- sysfs_remove_group(&pdev->dev.kobj, &abx500_temp_group);
- return err;
-}
-
-static int abx500_temp_remove(struct platform_device *pdev)
-{
- struct abx500_temp *data = platform_get_drvdata(pdev);
-
- cancel_delayed_work_sync(&data->work);
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&pdev->dev.kobj, &abx500_temp_group);
-
- return 0;
-}
-
-static int abx500_temp_suspend(struct platform_device *pdev,
- pm_message_t state)
-{
- struct abx500_temp *data = platform_get_drvdata(pdev);
-
- if (data->work_active)
- cancel_delayed_work_sync(&data->work);
-
- return 0;
-}
-
-static int abx500_temp_resume(struct platform_device *pdev)
-{
- struct abx500_temp *data = platform_get_drvdata(pdev);
-
- if (data->work_active)
- schedule_monitor(data);
-
- return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id abx500_temp_match[] = {
- { .compatible = "stericsson,abx500-temp" },
- {},
-};
-MODULE_DEVICE_TABLE(of, abx500_temp_match);
-#endif
-
-static struct platform_driver abx500_temp_driver = {
- .driver = {
- .name = "abx500-temp",
- .of_match_table = of_match_ptr(abx500_temp_match),
- },
- .suspend = abx500_temp_suspend,
- .resume = abx500_temp_resume,
- .probe = abx500_temp_probe,
- .remove = abx500_temp_remove,
-};
-
-module_platform_driver(abx500_temp_driver);
-
-MODULE_AUTHOR("Martin Persson <martin.persson@stericsson.com>");
-MODULE_DESCRIPTION("ABX500 temperature driver");
-MODULE_LICENSE("GPL");
projects / users / jedix / linux-maple.git / commitdiff