1 // SPDX-License-Identifier: GPL-2.0-or-later
10 #include <linux/hwmon-sysfs.h>
63 static int nct7363_read_fan(struct device *dev, u32 attr, int channel,  in nct7363_read_fan()  argument
70 	u16 cnt;  in nct7363_read_fan()  local
72 	switch (attr) {  in nct7363_read_fan()
75 		 * High-byte register should be read first to latch  in nct7363_read_fan()
76 		 * synchronous low-byte value  in nct7363_read_fan()
78 		ret = regmap_bulk_read(data->regmap,  in nct7363_read_fan()
84 		cnt = (regval[0] << 5) | (regval[1] & NCT7363_FANINX_LVAL_MASK);  in nct7363_read_fan()
85 		*val = fan_from_reg(cnt);  in nct7363_read_fan()
88 		ret = regmap_bulk_read(data->regmap,  in nct7363_read_fan()
94 		cnt = (regval[0] << 5) | (regval[1] & NCT7363_FANINX_LVAL_MASK);  in nct7363_read_fan()
95 		*val = fan_from_reg(cnt);  in nct7363_read_fan()
98 		ret = regmap_read(data->regmap,  in nct7363_read_fan()
106 		return -EOPNOTSUPP;  in nct7363_read_fan()
110 static int nct7363_write_fan(struct device *dev, u32 attr, int channel,  in nct7363_write_fan()  argument
118 		return -EINVAL;  in nct7363_write_fan()
120 	switch (attr) {  in nct7363_write_fan()
127 		ret = regmap_bulk_write(data->regmap,  in nct7363_write_fan()
132 		return -EOPNOTSUPP;  in nct7363_write_fan()
136 static umode_t nct7363_fan_is_visible(const void *_data, u32 attr, int channel)  in nct7363_fan_is_visible()  argument
140 	switch (attr) {  in nct7363_fan_is_visible()
143 		if (data->fanin_mask & BIT(channel))  in nct7363_fan_is_visible()
147 		if (data->fanin_mask & BIT(channel))  in nct7363_fan_is_visible()
157 static int nct7363_read_pwm(struct device *dev, u32 attr, int channel,  in nct7363_read_pwm()  argument
164 	switch (attr) {  in nct7363_read_pwm()
166 		ret = regmap_read(data->regmap,  in nct7363_read_pwm()
174 		return -EOPNOTSUPP;  in nct7363_read_pwm()
178 static int nct7363_write_pwm(struct device *dev, u32 attr, int channel,  in nct7363_write_pwm()  argument
184 	switch (attr) {  in nct7363_write_pwm()
187 			return -EINVAL;  in nct7363_write_pwm()
189 		ret = regmap_write(data->regmap,  in nct7363_write_pwm()
195 		return -EOPNOTSUPP;  in nct7363_write_pwm()
199 static umode_t nct7363_pwm_is_visible(const void *_data, u32 attr, int channel)  in nct7363_pwm_is_visible()  argument
203 	switch (attr) {  in nct7363_pwm_is_visible()
205 		if (data->pwm_mask & BIT(channel))  in nct7363_pwm_is_visible()
216 			u32 attr, int channel, long *val)  in nct7363_read()  argument
220 		return nct7363_read_fan(dev, attr, channel, val);  in nct7363_read()
222 		return nct7363_read_pwm(dev, attr, channel, val);  in nct7363_read()
224 		return -EOPNOTSUPP;  in nct7363_read()
229 			 u32 attr, int channel, long val)  in nct7363_write()  argument
233 		return nct7363_write_fan(dev, attr, channel, val);  in nct7363_write()
235 		return nct7363_write_pwm(dev, attr, channel, val);  in nct7363_write()
237 		return -EOPNOTSUPP;  in nct7363_write()
243 				  u32 attr, int channel)  in nct7363_is_visible()  argument
247 		return nct7363_fan_is_visible(data, attr, channel);  in nct7363_is_visible()
249 		return nct7363_pwm_is_visible(data, attr, channel);  in nct7363_is_visible()
311 		if (data->pwm_mask & BIT(i))  in nct7363_init_chip()
313 		if (data->fanin_mask & BIT(i))  in nct7363_init_chip()
318 		ret = regmap_write(data->regmap, NCT7363_REG_FUNC_CFG_BASE(i),  in nct7363_init_chip()
326 		ret = regmap_write(data->regmap, NCT7363_REG_PWMEN_BASE(i),  in nct7363_init_chip()
327 				   VALUE_TO_REG(data->pwm_mask, i));  in nct7363_init_chip()
331 		ret = regmap_write(data->regmap, NCT7363_REG_FANINEN_BASE(i),  in nct7363_init_chip()
332 				   VALUE_TO_REG(data->fanin_mask, i));  in nct7363_init_chip()
349 	ret = of_parse_phandle_with_args(child, "pwms", "#pwm-cells",  in nct7363_present_pwm_fanin()
355 		return -EINVAL;  in nct7363_present_pwm_fanin()
356 	data->pwm_mask |= BIT(args.args[0]);  in nct7363_present_pwm_fanin()
358 	fanin_cnt = of_property_count_u8_elems(child, "tach-ch");  in nct7363_present_pwm_fanin()
360 		return -EINVAL;  in nct7363_present_pwm_fanin()
362 	ret = of_property_read_u8_array(child, "tach-ch", fanin_ch, fanin_cnt);  in nct7363_present_pwm_fanin()
369 			return -EINVAL;  in nct7363_present_pwm_fanin()
370 		data->fanin_mask |= BIT(index);  in nct7363_present_pwm_fanin()
400 	struct device *dev = &client->dev;  in nct7363_probe()
408 		return -ENOMEM;  in nct7363_probe()
410 	data->regmap = devm_regmap_init_i2c(client, &nct7363_regmap_config);  in nct7363_probe()
411 	if (IS_ERR(data->regmap))  in nct7363_probe()
412 		return PTR_ERR(data->regmap);  in nct7363_probe()
414 	for_each_child_of_node(dev->of_node, child) {  in nct7363_probe()
428 		devm_hwmon_device_register_with_info(dev, client->name, data,  in nct7363_probe()
436 		.name = "nct7363",