1 // SPDX-License-Identifier: GPL-2.0
23 	char input[20];  member
57 static void scpi_scale_reading(u64 *value, struct sensor_data *sensor)  in scpi_scale_reading()  argument
59 	if (scpi_scale[sensor->info.class] != sensor->scale) {  in scpi_scale_reading()
60 		*value *= scpi_scale[sensor->info.class];  in scpi_scale_reading()
61 		do_div(*value, sensor->scale);  in scpi_scale_reading()
68 	struct scpi_sensors *scpi_sensors = zone->scpi_sensors;  in scpi_read_temp()
69 	struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;  in scpi_read_temp()
70 	struct sensor_data *sensor = &scpi_sensors->data[zone->sensor_id];  in scpi_read_temp()
71 	u64 value;  in scpi_read_temp()  local
74 	ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);  in scpi_read_temp()
78 	scpi_scale_reading(&value, sensor);  in scpi_read_temp()
80 	*temp = value;  in scpi_read_temp()
89 	struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;  in scpi_show_sensor()
91 	u64 value;  in scpi_show_sensor()  local
96 	ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);  in scpi_show_sensor()
100 	scpi_scale_reading(&value, sensor);  in scpi_show_sensor()
108 	if (sensor->info.class == TEMPERATURE)  in scpi_show_sensor()
109 		return sprintf(buf, "%lld\n", (s64)value);  in scpi_show_sensor()
111 	return sprintf(buf, "%llu\n", value);  in scpi_show_sensor()
121 	return sprintf(buf, "%s\n", sensor->info.name);  in scpi_show_label()
129 	{.compatible = "arm,scpi-sensors", .data = &scpi_scale},
130 	{.compatible = "amlogic,meson-gxbb-scpi-sensors", .data = &gxbb_scpi_scale},
142 	struct device *hwdev, *dev = &pdev->dev;  in scpi_hwmon_probe()
149 		return -EPROBE_DEFER;  in scpi_hwmon_probe()
151 	ret = scpi_ops->sensor_get_capability(&nr_sensors);  in scpi_hwmon_probe()
156 		return -ENODEV;  in scpi_hwmon_probe()
160 		return -ENOMEM;  in scpi_hwmon_probe()
162 	scpi_sensors->data = devm_kcalloc(dev, nr_sensors,  in scpi_hwmon_probe()
163 				   sizeof(*scpi_sensors->data), GFP_KERNEL);  in scpi_hwmon_probe()
164 	if (!scpi_sensors->data)  in scpi_hwmon_probe()
165 		return -ENOMEM;  in scpi_hwmon_probe()
167 	scpi_sensors->attrs = devm_kcalloc(dev, (nr_sensors * 2) + 1,  in scpi_hwmon_probe()
168 				   sizeof(*scpi_sensors->attrs), GFP_KERNEL);  in scpi_hwmon_probe()
169 	if (!scpi_sensors->attrs)  in scpi_hwmon_probe()
170 		return -ENOMEM;  in scpi_hwmon_probe()
172 	scpi_sensors->scpi_ops = scpi_ops;  in scpi_hwmon_probe()
174 	of_id = of_match_device(scpi_of_match, &pdev->dev);  in scpi_hwmon_probe()
176 		dev_err(&pdev->dev, "Unable to initialize scpi-hwmon data\n");  in scpi_hwmon_probe()
177 		return -ENODEV;  in scpi_hwmon_probe()
179 	scale = of_id->data;  in scpi_hwmon_probe()
182 		struct sensor_data *sensor = &scpi_sensors->data[idx];  in scpi_hwmon_probe()
184 		ret = scpi_ops->sensor_get_info(i, &sensor->info);  in scpi_hwmon_probe()
188 		switch (sensor->info.class) {  in scpi_hwmon_probe()
190 			snprintf(sensor->input, sizeof(sensor->input),  in scpi_hwmon_probe()
192 			snprintf(sensor->label, sizeof(sensor->input),  in scpi_hwmon_probe()
197 			snprintf(sensor->input, sizeof(sensor->input),  in scpi_hwmon_probe()
199 			snprintf(sensor->label, sizeof(sensor->input),  in scpi_hwmon_probe()
204 			snprintf(sensor->input, sizeof(sensor->input),  in scpi_hwmon_probe()
206 			snprintf(sensor->label, sizeof(sensor->input),  in scpi_hwmon_probe()
211 			snprintf(sensor->input, sizeof(sensor->input),  in scpi_hwmon_probe()
213 			snprintf(sensor->label, sizeof(sensor->input),  in scpi_hwmon_probe()
218 			snprintf(sensor->input, sizeof(sensor->input),  in scpi_hwmon_probe()
220 			snprintf(sensor->label, sizeof(sensor->input),  in scpi_hwmon_probe()
228 		sensor->scale = scale[sensor->info.class];  in scpi_hwmon_probe()
230 		sensor->dev_attr_input.attr.mode = 0444;  in scpi_hwmon_probe()
231 		sensor->dev_attr_input.show = scpi_show_sensor;  in scpi_hwmon_probe()
232 		sensor->dev_attr_input.attr.name = sensor->input;  in scpi_hwmon_probe()
234 		sensor->dev_attr_label.attr.mode = 0444;  in scpi_hwmon_probe()
235 		sensor->dev_attr_label.show = scpi_show_label;  in scpi_hwmon_probe()
236 		sensor->dev_attr_label.attr.name = sensor->label;  in scpi_hwmon_probe()
238 		scpi_sensors->attrs[idx << 1] = &sensor->dev_attr_input.attr;  in scpi_hwmon_probe()
239 		scpi_sensors->attrs[(idx << 1) + 1] = &sensor->dev_attr_label.attr;  in scpi_hwmon_probe()
241 		sysfs_attr_init(scpi_sensors->attrs[idx << 1]);  in scpi_hwmon_probe()
242 		sysfs_attr_init(scpi_sensors->attrs[(idx << 1) + 1]);  in scpi_hwmon_probe()
246 	scpi_sensors->group.attrs = scpi_sensors->attrs;  in scpi_hwmon_probe()
247 	scpi_sensors->groups[0] = &scpi_sensors->group;  in scpi_hwmon_probe()
252 			"scpi_sensors", scpi_sensors, scpi_sensors->groups);  in scpi_hwmon_probe()
265 	INIT_LIST_HEAD(&scpi_sensors->thermal_zones);  in scpi_hwmon_probe()
267 		struct sensor_data *sensor = &scpi_sensors->data[i];  in scpi_hwmon_probe()
271 		if (sensor->info.class != TEMPERATURE)  in scpi_hwmon_probe()
276 			return -ENOMEM;  in scpi_hwmon_probe()
278 		zone->sensor_id = i;  in scpi_hwmon_probe()
279 		zone->scpi_sensors = scpi_sensors;  in scpi_hwmon_probe()
281 							 sensor->info.sensor_id,  in scpi_hwmon_probe()
299 		.name	= "scpi-hwmon",