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 __devinit ab8500_temp_probe(struct platform_device *pdev)
{
struct ab8500_temp *data;
int err;
data = kzalloc(sizeof(struct ab8500_temp), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->gpadc = ab8500_gpadc_get();
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;
}
INIT_DELAYED_WORK_DEFERRABLE(&data->work, gpadc_monitor);
INIT_DELAYED_WORK(&data->power_off_work, thermal_power_off);
/*
* Setup HW defined data.
*
* Reference hardware (HREF):
*
* GPADC - ADC_AUX1, connected to NTC R2148 next to RTC_XTAL on HREF
* GPADC - ADC_AUX2, connected to NTC R2150 near DB8500 on HREF
* Hence, temp#_min/max/max_hyst refer to millivolts and not
* millidegrees
*
* HREF HW does not support reading AB8500 temperature. BUT an
* AB8500 IRQ will be launched if die crit temp limit is reached.
*
* Also:
* Battery temperature (BatTemp and BatCtrl) thresholds will
* not be exposed via hwmon.
*
* Make sure indexes correspond to the attribute indexes
* used when calling SENSOR_DEVICE_ATRR
*/
data->gpadc_addr[0] = ADC_AUX1;
data->gpadc_addr[1] = ADC_AUX2;
data->gpadc_addr[2] = BTEMP_BALL;
data->gpadc_addr[4] = BAT_CTRL;
mutex_init(&data->lock);
data->pdev = pdev;
data->power_off_delay = DEFAULT_POWER_OFF_DELAY;
platform_set_drvdata(pdev, data);
err = sysfs_create_group(&pdev->dev.kobj, &ab8500_temp_group);
if (err < 0) {
dev_err(&pdev->dev, "Create sysfs group failed (%d)\n", err);
goto exit_platform_data;
}
err = setup_irqs(pdev);
if (err < 0)
goto exit_platform_data;
return 0;
exit_platform_data:
platform_set_drvdata(pdev, NULL);
exit:
kfree(data);
return err;
}
