hwmon.c (0fdc50dfab47d525b71a9f0d8310746cdc0c09c5) hwmon.c (44e3ad882bb268563766c45cd842a229dd3a4902)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * hwmon.c - part of lm_sensors, Linux kernel modules for hardware monitoring
4 *
5 * This file defines the sysfs class "hwmon", for use by sensors drivers.
6 *
7 * Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
8 */

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174 * If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
175 * so ignore that error but forward any other error.
176 */
177 if (IS_ERR(tzd) && (PTR_ERR(tzd) != -ENODEV))
178 return PTR_ERR(tzd);
179
180 return 0;
181}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * hwmon.c - part of lm_sensors, Linux kernel modules for hardware monitoring
4 *
5 * This file defines the sysfs class "hwmon", for use by sensors drivers.
6 *
7 * Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
8 */

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174 * If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
175 * so ignore that error but forward any other error.
176 */
177 if (IS_ERR(tzd) && (PTR_ERR(tzd) != -ENODEV))
178 return PTR_ERR(tzd);
179
180 return 0;
181}
182
183static int hwmon_thermal_register_sensors(struct device *dev)
184{
185 struct hwmon_device *hwdev = to_hwmon_device(dev);
186 const struct hwmon_chip_info *chip = hwdev->chip;
187 const struct hwmon_channel_info **info = chip->info;
188 void *drvdata = dev_get_drvdata(dev);
189 int i;
190
191 for (i = 1; info[i]; i++) {
192 int j;
193
194 if (info[i]->type != hwmon_temp)
195 continue;
196
197 for (j = 0; info[i]->config[j]; j++) {
198 int err;
199
200 if (!(info[i]->config[j] & HWMON_T_INPUT) ||
201 !chip->ops->is_visible(drvdata, hwmon_temp,
202 hwmon_temp_input, j))
203 continue;
204
205 err = hwmon_thermal_add_sensor(dev, j);
206 if (err)
207 return err;
208 }
209 }
210
211 return 0;
212}
213
182#else
214#else
183static int hwmon_thermal_add_sensor(struct device *dev, int index)
215static int hwmon_thermal_register_sensors(struct device *dev)
184{
185 return 0;
186}
187#endif /* IS_REACHABLE(CONFIG_THERMAL) && ... */
188
189static int hwmon_attr_base(enum hwmon_sensor_types type)
190{
191 if (type == hwmon_in || type == hwmon_intrusion)

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591
592static struct device *
593__hwmon_device_register(struct device *dev, const char *name, void *drvdata,
594 const struct hwmon_chip_info *chip,
595 const struct attribute_group **groups)
596{
597 struct hwmon_device *hwdev;
598 struct device *hdev;
216{
217 return 0;
218}
219#endif /* IS_REACHABLE(CONFIG_THERMAL) && ... */
220
221static int hwmon_attr_base(enum hwmon_sensor_types type)
222{
223 if (type == hwmon_in || type == hwmon_intrusion)

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623
624static struct device *
625__hwmon_device_register(struct device *dev, const char *name, void *drvdata,
626 const struct hwmon_chip_info *chip,
627 const struct attribute_group **groups)
628{
629 struct hwmon_device *hwdev;
630 struct device *hdev;
599 int i, j, err, id;
631 int i, err, id;
600
601 /* Complain about invalid characters in hwmon name attribute */
602 if (name && (!strlen(name) || strpbrk(name, "-* \t\n")))
603 dev_warn(dev,
604 "hwmon: '%s' is not a valid name attribute, please fix\n",
605 name);
606
607 id = ida_simple_get(&hwmon_ida, 0, 0, GFP_KERNEL);

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659 dev_set_name(hdev, HWMON_ID_FORMAT, id);
660 err = device_register(hdev);
661 if (err)
662 goto free_hwmon;
663
664 if (dev && dev->of_node && chip && chip->ops->read &&
665 chip->info[0]->type == hwmon_chip &&
666 (chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
632
633 /* Complain about invalid characters in hwmon name attribute */
634 if (name && (!strlen(name) || strpbrk(name, "-* \t\n")))
635 dev_warn(dev,
636 "hwmon: '%s' is not a valid name attribute, please fix\n",
637 name);
638
639 id = ida_simple_get(&hwmon_ida, 0, 0, GFP_KERNEL);

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691 dev_set_name(hdev, HWMON_ID_FORMAT, id);
692 err = device_register(hdev);
693 if (err)
694 goto free_hwmon;
695
696 if (dev && dev->of_node && chip && chip->ops->read &&
697 chip->info[0]->type == hwmon_chip &&
698 (chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {
667 const struct hwmon_channel_info **info = chip->info;
668
669 for (i = 1; info[i]; i++) {
670 if (info[i]->type != hwmon_temp)
671 continue;
672
673 for (j = 0; info[i]->config[j]; j++) {
674 if (!chip->ops->is_visible(drvdata, hwmon_temp,
675 hwmon_temp_input, j))
676 continue;
677 if (info[i]->config[j] & HWMON_T_INPUT) {
678 err = hwmon_thermal_add_sensor(hdev, j);
679 if (err) {
680 device_unregister(hdev);
681 /*
682 * Don't worry about hwdev;
683 * hwmon_dev_release(), called
684 * from device_unregister(),
685 * will free it.
686 */
687 goto ida_remove;
688 }
689 }
690 }
699 err = hwmon_thermal_register_sensors(hdev);
700 if (err) {
701 device_unregister(hdev);
702 /*
703 * Don't worry about hwdev; hwmon_dev_release(), called
704 * from device_unregister(), will free it.
705 */
706 goto ida_remove;
691 }
692 }
693
694 return hdev;
695
696free_hwmon:
697 hwmon_dev_release(hdev);
698ida_remove:

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708 }
709
710 return hdev;
711
712free_hwmon:
713 hwmon_dev_release(hdev);
714ida_remove:

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