1 // SPDX-License-Identifier: GPL-2.0-or-later
75 /* Client data (each client gets its own) */
80 	unsigned long interval;		/* in milli-seconds */
102 	struct lm95241_data *data = dev_get_drvdata(dev);  in lm95241_update_device()  local
103 	struct i2c_client *client = data->client;  in lm95241_update_device()
105 	mutex_lock(&data->update_lock);  in lm95241_update_device()
107 	if (time_after(jiffies, data->last_updated  in lm95241_update_device()
108 		       + msecs_to_jiffies(data->interval)) ||  in lm95241_update_device()
109 	    !data->valid) {  in lm95241_update_device()
112 		dev_dbg(dev, "Updating lm95241 data.\n");  in lm95241_update_device()
114 			data->temp[i]  in lm95241_update_device()
118 		data->status = i2c_smbus_read_byte_data(client,  in lm95241_update_device()
120 		data->last_updated = jiffies;  in lm95241_update_device()
121 		data->valid = true;  in lm95241_update_device()
124 	mutex_unlock(&data->update_lock);  in lm95241_update_device()
126 	return data;  in lm95241_update_device()
129 static int lm95241_read_chip(struct device *dev, u32 attr, int channel,  in lm95241_read_chip()  argument
132 	struct lm95241_data *data = dev_get_drvdata(dev);  in lm95241_read_chip()  local
136 		*val = data->interval;  in lm95241_read_chip()
139 		return -EOPNOTSUPP;  in lm95241_read_chip()
143 static int lm95241_read_temp(struct device *dev, u32 attr, int channel,  in lm95241_read_temp()  argument
146 	struct lm95241_data *data = lm95241_update_device(dev);  in lm95241_read_temp()  local
150 		if (!channel || (data->config & BIT(channel - 1)))  in lm95241_read_temp()
151 			*val = temp_from_reg_signed(data->temp[channel * 2],  in lm95241_read_temp()
152 						data->temp[channel * 2 + 1]);  in lm95241_read_temp()
154 			*val = temp_from_reg_unsigned(data->temp[channel * 2],  in lm95241_read_temp()
155 						data->temp[channel * 2 + 1]);  in lm95241_read_temp()
158 		if (channel == 1)  in lm95241_read_temp()
159 			*val = (data->config & R1DF_MASK) ? -128000 : 0;  in lm95241_read_temp()
161 			*val = (data->config & R2DF_MASK) ? -128000 : 0;  in lm95241_read_temp()
164 		if (channel == 1)  in lm95241_read_temp()
165 			*val = (data->config & R1DF_MASK) ? 127875 : 255875;  in lm95241_read_temp()
167 			*val = (data->config & R2DF_MASK) ? 127875 : 255875;  in lm95241_read_temp()
170 		if (channel == 1)  in lm95241_read_temp()
171 			*val = (data->model & R1MS_MASK) ? 1 : 2;  in lm95241_read_temp()
173 			*val = (data->model & R2MS_MASK) ? 1 : 2;  in lm95241_read_temp()
176 		if (channel == 1)  in lm95241_read_temp()
177 			*val = !!(data->status & R1DM);  in lm95241_read_temp()
179 			*val = !!(data->status & R2DM);  in lm95241_read_temp()
182 		return -EOPNOTSUPP;  in lm95241_read_temp()
187 			u32 attr, int channel, long *val)  in lm95241_read()  argument
191 		return lm95241_read_chip(dev, attr, channel, val);  in lm95241_read()
193 		return lm95241_read_temp(dev, attr, channel, val);  in lm95241_read()
195 		return -EOPNOTSUPP;  in lm95241_read()
199 static int lm95241_write_chip(struct device *dev, u32 attr, int channel,  in lm95241_write_chip()  argument
202 	struct lm95241_data *data = dev_get_drvdata(dev);  in lm95241_write_chip()  local
207 	mutex_lock(&data->update_lock);  in lm95241_write_chip()
211 		config = data->config & ~CFG_CRMASK;  in lm95241_write_chip()
225 		data->interval = convrate;  in lm95241_write_chip()
226 		data->config = config;  in lm95241_write_chip()
227 		ret = i2c_smbus_write_byte_data(data->client,  in lm95241_write_chip()
231 		ret = -EOPNOTSUPP;  in lm95241_write_chip()
234 	mutex_unlock(&data->update_lock);  in lm95241_write_chip()
238 static int lm95241_write_temp(struct device *dev, u32 attr, int channel,  in lm95241_write_temp()  argument
241 	struct lm95241_data *data = dev_get_drvdata(dev);  in lm95241_write_temp()  local
242 	struct i2c_client *client = data->client;  in lm95241_write_temp()
245 	mutex_lock(&data->update_lock);  in lm95241_write_temp()
249 		if (channel == 1) {  in lm95241_write_temp()
251 				data->config |= R1DF_MASK;  in lm95241_write_temp()
253 				data->config &= ~R1DF_MASK;  in lm95241_write_temp()
256 				data->config |= R2DF_MASK;  in lm95241_write_temp()
258 				data->config &= ~R2DF_MASK;  in lm95241_write_temp()
260 		data->valid = false;  in lm95241_write_temp()
262 						data->config);  in lm95241_write_temp()
265 		if (channel == 1) {  in lm95241_write_temp()
267 				data->config |= R1DF_MASK;  in lm95241_write_temp()
269 				data->config &= ~R1DF_MASK;  in lm95241_write_temp()
272 				data->config |= R2DF_MASK;  in lm95241_write_temp()
274 				data->config &= ~R2DF_MASK;  in lm95241_write_temp()
276 		data->valid = false;  in lm95241_write_temp()
278 						data->config);  in lm95241_write_temp()
282 			ret = -EINVAL;  in lm95241_write_temp()
285 		if (channel == 1) {  in lm95241_write_temp()
286 			data->trutherm &= ~(TT_MASK << TT1_SHIFT);  in lm95241_write_temp()
288 				data->model |= R1MS_MASK;  in lm95241_write_temp()
289 				data->trutherm |= (TT_ON << TT1_SHIFT);  in lm95241_write_temp()
291 				data->model &= ~R1MS_MASK;  in lm95241_write_temp()
292 				data->trutherm |= (TT_OFF << TT1_SHIFT);  in lm95241_write_temp()
295 			data->trutherm &= ~(TT_MASK << TT2_SHIFT);  in lm95241_write_temp()
297 				data->model |= R2MS_MASK;  in lm95241_write_temp()
298 				data->trutherm |= (TT_ON << TT2_SHIFT);  in lm95241_write_temp()
300 				data->model &= ~R2MS_MASK;  in lm95241_write_temp()
301 				data->trutherm |= (TT_OFF << TT2_SHIFT);  in lm95241_write_temp()
306 						data->model);  in lm95241_write_temp()
310 						data->trutherm);  in lm95241_write_temp()
313 		ret = -EOPNOTSUPP;  in lm95241_write_temp()
317 	mutex_unlock(&data->update_lock);  in lm95241_write_temp()
323 			 u32 attr, int channel, long val)  in lm95241_write()  argument
327 		return lm95241_write_chip(dev, attr, channel, val);  in lm95241_write()
329 		return lm95241_write_temp(dev, attr, channel, val);  in lm95241_write()
331 		return -EOPNOTSUPP;  in lm95241_write()
335 static umode_t lm95241_is_visible(const void *data,  in lm95241_is_visible()  argument
337 				  u32 attr, int channel)  in lm95241_is_visible()  argument
364 /* Return 0 if detection is successful, -ENODEV otherwise */
368 	struct i2c_adapter *adapter = new_client->adapter;  in lm95241_detect()
373 		return -ENODEV;  in lm95241_detect()
377 		return -ENODEV;  in lm95241_detect()
388 		return -ENODEV;  in lm95241_detect()
392 	strscpy(info->type, name, I2C_NAME_SIZE);  in lm95241_detect()
397 				struct lm95241_data *data)  in lm95241_init_client()  argument
399 	data->interval = 1000;  in lm95241_init_client()
400 	data->config = CFG_CR1000;  in lm95241_init_client()
401 	data->trutherm = (TT_OFF << TT1_SHIFT) | (TT_OFF << TT2_SHIFT);  in lm95241_init_client()
403 	i2c_smbus_write_byte_data(client, LM95241_REG_RW_CONFIG, data->config);  in lm95241_init_client()
407 				  data->trutherm);  in lm95241_init_client()
409 				  data->model);  in lm95241_init_client()
437 	struct device *dev = &client->dev;  in lm95241_probe()
438 	struct lm95241_data *data;  in lm95241_probe()  local
441 	data = devm_kzalloc(dev, sizeof(struct lm95241_data), GFP_KERNEL);  in lm95241_probe()
442 	if (!data)  in lm95241_probe()
443 		return -ENOMEM;  in lm95241_probe()
445 	data->client = client;  in lm95241_probe()
446 	mutex_init(&data->update_lock);  in lm95241_probe()
449 	lm95241_init_client(client, data);  in lm95241_probe()
451 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,  in lm95241_probe()
452 							   data,  in lm95241_probe()
458 /* Driver data (common to all clients) */