1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * A driver for the Integrated Circuits ICS932S401
19 static const unsigned short normal_i2c[] = { 0x69, I2C_CLIENT_END };
122 	mutex_lock(&data->lock);  in ics932s401_update_device()
123 	if (time_before(local_jiffies, data->sensors_last_updated +  in ics932s401_update_device()
125 		&& data->sensors_valid)  in ics932s401_update_device()
137 		data->regs[regs_to_copy[i]] = temp >> 8;  in ics932s401_update_device()
140 	data->sensors_last_updated = local_jiffies;  in ics932s401_update_device()
141 	data->sensors_valid = 1;  in ics932s401_update_device()
144 	mutex_unlock(&data->lock);  in ics932s401_update_device()
154 	if (data->regs[ICS932S401_REG_CFG2] & ICS932S401_CFG1_SPREAD)  in show_spread_enabled()
181 	m = data->regs[ICS932S401_REG_CPU_M_CTRL] & ICS932S401_M_MASK;  in calculate_cpu_freq()
182 	n = data->regs[ICS932S401_REG_CPU_N_CTRL];  in calculate_cpu_freq()
185 	n |= ((int)data->regs[ICS932S401_REG_CPU_M_CTRL] & 0x80) << 1;  in calculate_cpu_freq()
186 	n |= ((int)data->regs[ICS932S401_REG_CPU_M_CTRL] & 0x40) << 3;  in calculate_cpu_freq()
189 	freq /= divisors[data->regs[ICS932S401_REG_CPU_DIVISOR] >>  in calculate_cpu_freq()
211 	if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)  in show_cpu_clock_sel()
215 		int fid = data->regs[ICS932S401_REG_CFG7] & ICS932S401_FS_MASK;  in show_cpu_clock_sel()
218 		if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_CPU_ALT) {  in show_cpu_clock_sel()
238 	m = data->regs[ICS932S401_REG_SRC_M_CTRL] & ICS932S401_M_MASK;  in calculate_src_freq()
239 	n = data->regs[ICS932S401_REG_SRC_N_CTRL];  in calculate_src_freq()
242 	n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x80) << 1;  in calculate_src_freq()
243 	n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x40) << 3;  in calculate_src_freq()
246 	freq /= divisors[data->regs[ICS932S401_REG_PCISRC_DIVISOR] &  in calculate_src_freq()
268 	if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)  in show_src_clock_sel()
272 		if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_CPU_ALT &&  in show_src_clock_sel()
273 		    data->regs[ICS932S401_REG_CTRL] & ICS932S401_SRC_ALT)  in show_src_clock_sel()
286 	m = data->regs[ICS932S401_REG_SRC_M_CTRL] & ICS932S401_M_MASK;  in calculate_pci_freq()
287 	n = data->regs[ICS932S401_REG_SRC_N_CTRL];  in calculate_pci_freq()
290 	n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x80) << 1;  in calculate_pci_freq()
291 	n |= ((int)data->regs[ICS932S401_REG_SRC_M_CTRL] & 0x40) << 3;  in calculate_pci_freq()
294 	freq /= divisors[data->regs[ICS932S401_REG_PCISRC_DIVISOR] >>  in calculate_pci_freq()
316 	if (data->regs[ICS932S401_REG_CTRL] & ICS932S401_MN_ENABLED)  in show_pci_clock_sel()
383 	if (!(data->regs[ICS932S401_REG_CFG2] & ICS932S401_CFG1_SPREAD))  in show_spread()
393 	val = data->regs[reg] | (data->regs[reg + 1] << 8);  in show_spread()
396 	/* Scale 0..2^14 to -0.5. */  in show_spread()
398 	return sprintf(buf, "-0.%lu%%\n", val);  in show_spread()
401 /* Return 0 if detection is successful, -ENODEV otherwise */
405 	struct i2c_adapter *adapter = client->adapter;  in ics932s401_detect()
409 		return -ENODEV;  in ics932s401_detect()
416 		return -ENODEV;  in ics932s401_detect()
421 		return -ENODEV;  in ics932s401_detect()
424 		dev_info(&adapter->dev, "Unknown revision %d\n", revision);  in ics932s401_detect()
426 	strscpy(info->type, "ics932s401", I2C_NAME_SIZE);  in ics932s401_detect()
438 		err = -ENOMEM;  in ics932s401_probe()
443 	mutex_init(&data->lock);  in ics932s401_probe()
445 	dev_info(&client->dev, "%s chip found\n", client->name);  in ics932s401_probe()
448 	data->attrs.attrs = ics932s401_attr;  in ics932s401_probe()
449 	err = sysfs_create_group(&client->dev.kobj, &data->attrs);  in ics932s401_probe()
465 	sysfs_remove_group(&client->dev.kobj, &data->attrs);  in ics932s401_remove()