1 // SPDX-License-Identifier: GPL-2.0-only
3  * Windfarm PowerMac thermal control.  MAX6690 sensor.
34 static int wf_max6690_get(struct wf_sensor *sr, s32 *value)  in wf_max6690_get()  argument
36 	struct wf_6690_sensor *max = wf_to_6690(sr);  in wf_max6690_get()
39 	if (max->i2c == NULL)  in wf_max6690_get()
40 		return -ENODEV;  in wf_max6690_get()
43 	data = i2c_smbus_read_byte_data(max->i2c, MAX6690_EXTERNAL_TEMP);  in wf_max6690_get()
50 static void wf_max6690_release(struct wf_sensor *sr)  in wf_max6690_release()  argument
52 	struct wf_6690_sensor *max = wf_to_6690(sr);  in wf_max6690_release()
69 	loc = of_get_property(client->dev.of_node, "hwsensor-location", NULL);  in wf_max6690_probe()
71 		dev_warn(&client->dev, "Missing hwsensor-location property!\n");  in wf_max6690_probe()
72 		return -ENXIO;  in wf_max6690_probe()
80 		name = "backside-temp";  in wf_max6690_probe()
82 		name = "north-bridge-temp";  in wf_max6690_probe()
84 		name = "gpu-temp";  in wf_max6690_probe()
86 		return -ENXIO;  in wf_max6690_probe()
92 		return -ENOMEM;  in wf_max6690_probe()
95 	max->i2c = client;  in wf_max6690_probe()
96 	max->sens.name = name;  in wf_max6690_probe()
97 	max->sens.ops = &wf_max6690_ops;  in wf_max6690_probe()
100 	rc = wf_register_sensor(&max->sens);  in wf_max6690_probe()
110 	max->i2c = NULL;  in wf_max6690_remove()
111 	wf_unregister_sensor(&max->sens);  in wf_max6690_remove()
139 MODULE_DESCRIPTION("MAX6690 sensor objects for PowerMac thermal control");