1 // SPDX-License-Identifier: GPL-2.0-or-later
35 /* GPIO CONFIG bits */
91 	s64 delta = ktime_us_delta(ktime_get(), data->write_time);  in ucd90320_wait()
94 		udelay(UCD90320_WAIT_DELAY_US - delta);  in ucd90320_wait()
104 		return -ENXIO;  in ucd90320_read_word_data()
128 	data->write_time = ktime_get();  in ucd90320_write_word_data()
141 	data->write_time = ktime_get();  in ucd90320_write_byte()
152 	if (data->fan_data[fan][3] & 1)  in ucd9000_get_fan_config()
156 	fan_config |= (data->fan_data[fan][3] & 0x06) >> 1;  in ucd9000_get_fan_config()
169 			return -ENXIO;  in ucd9000_read_byte_data()
183 			return -ENXIO;  in ucd9000_read_byte_data()
196 		ret = -ENODATA;  in ucd9000_read_byte_data()
281 		dev_dbg(&client->dev, "failed to read GPIO %d config: %d\n",  in ucd9000_gpio_set()
303 		dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n",  in ucd9000_gpio_set()
312 		dev_dbg(&client->dev, "Failed to write GPIO %d config: %d\n",  in ucd9000_gpio_set()
334 	int ret, config, out_val;  in ucd9000_gpio_set_direction()  local
363 	config = ret;  in ucd9000_gpio_set_direction()
366 	ret = i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, config);  in ucd9000_gpio_set_direction()
370 	config &= ~UCD9000_GPIO_CONFIG_ENABLE;  in ucd9000_gpio_set_direction()
372 	return i2c_smbus_write_byte_data(client, UCD9000_GPIO_CONFIG, config);  in ucd9000_gpio_set_direction()
394 	switch (mid->driver_data) {  in ucd9000_probe_gpio()
396 		data->gpio.ngpio = UCD9090_NUM_GPIOS;  in ucd9000_probe_gpio()
401 		data->gpio.ngpio = UCD901XX_NUM_GPIOS;  in ucd9000_probe_gpio()
404 		data->gpio.ngpio = UCD90320_NUM_GPIOS;  in ucd9000_probe_gpio()
407 		data->gpio.ngpio = UCD90910_NUM_GPIOS;  in ucd9000_probe_gpio()
418 	data->gpio.label = client->name;  in ucd9000_probe_gpio()
419 	data->gpio.get_direction = ucd9000_gpio_get_direction;  in ucd9000_probe_gpio()
420 	data->gpio.direction_input = ucd9000_gpio_direction_input;  in ucd9000_probe_gpio()
421 	data->gpio.direction_output = ucd9000_gpio_direction_output;  in ucd9000_probe_gpio()
422 	data->gpio.get = ucd9000_gpio_get;  in ucd9000_probe_gpio()
423 	data->gpio.set = ucd9000_gpio_set;  in ucd9000_probe_gpio()
424 	data->gpio.can_sleep = true;  in ucd9000_probe_gpio()
425 	data->gpio.base = -1;  in ucd9000_probe_gpio()
426 	data->gpio.parent = &client->dev;  in ucd9000_probe_gpio()
428 	rc = devm_gpiochip_add_data(&client->dev, &data->gpio, client);  in ucd9000_probe_gpio()
430 		dev_warn(&client->dev, "Could not add gpiochip: %d\n", rc);  in ucd9000_probe_gpio()
454 	struct i2c_client *client = entry->client;  in ucd9000_debugfs_show_mfr_status_bit()
463 	 * GPI fault bits are in sets of 8, two bytes from end of response.  in ucd9000_debugfs_show_mfr_status_bit()
465 	i = ret - 3 - entry->index / 8;  in ucd9000_debugfs_show_mfr_status_bit()
467 		*val = !!(buffer[i] & BIT(entry->index % 8));  in ucd9000_debugfs_show_mfr_status_bit()
478 	struct i2c_client *client = file->private_data;  in ucd9000_debugfs_read_mfr_status()
492 	return simple_read_from_buffer(buf, count, ppos, str, res - str);  in ucd9000_debugfs_read_mfr_status()
512 		return -ENOENT;  in ucd9000_init_debugfs()
514 	data->debugfs = debugfs_create_dir(client->name, debugfs);  in ucd9000_init_debugfs()
518 	 * UCD90320, and UCD90910 report GPI faults in their MFR_STATUS  in ucd9000_init_debugfs()
519 	 * register, so only create the GPI fault debugfs attributes for those  in ucd9000_init_debugfs()
522 	if (mid->driver_data == ucd9090 || mid->driver_data == ucd90160 ||  in ucd9000_init_debugfs()
523 	    mid->driver_data == ucd90320 || mid->driver_data == ucd90910) {  in ucd9000_init_debugfs()
524 		gpi_count = mid->driver_data == ucd90320 ? UCD90320_GPI_COUNT  in ucd9000_init_debugfs()
526 		entries = devm_kcalloc(&client->dev,  in ucd9000_init_debugfs()
530 			return -ENOMEM;  in ucd9000_init_debugfs()
536 				  "gpi%d_alarm", i + 1);  in ucd9000_init_debugfs()
537 			debugfs_create_file(name, 0444, data->debugfs,  in ucd9000_init_debugfs()
544 	debugfs_create_file(name, 0444, data->debugfs, client,  in ucd9000_init_debugfs()
567 	if (!i2c_check_functionality(client->adapter,  in ucd9000_probe()
570 		return -ENODEV;  in ucd9000_probe()
575 		dev_err(&client->dev, "Failed to read device ID\n");  in ucd9000_probe()
579 	dev_info(&client->dev, "Device ID %s\n", block_buffer);  in ucd9000_probe()
581 	for (mid = ucd9000_id; mid->name[0]; mid++) {  in ucd9000_probe()
582 		if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))  in ucd9000_probe()
585 	if (!mid->name[0]) {  in ucd9000_probe()
586 		dev_err(&client->dev, "Unsupported device\n");  in ucd9000_probe()
587 		return -ENODEV;  in ucd9000_probe()
590 	if (client->dev.of_node)  in ucd9000_probe()
591 		chip = (uintptr_t)of_device_get_match_data(&client->dev);  in ucd9000_probe()
593 		chip = mid->driver_data;  in ucd9000_probe()
595 	if (chip != ucd9000 && strcmp(client->name, mid->name) != 0)  in ucd9000_probe()
596 		dev_notice(&client->dev,  in ucd9000_probe()
598 			   client->name, mid->name);  in ucd9000_probe()
600 	data = devm_kzalloc(&client->dev, sizeof(struct ucd9000_data),  in ucd9000_probe()
603 		return -ENOMEM;  in ucd9000_probe()
604 	info = &data->info;  in ucd9000_probe()
608 		dev_err(&client->dev,  in ucd9000_probe()
612 	info->pages = ret;  in ucd9000_probe()
613 	if (!info->pages) {  in ucd9000_probe()
614 		dev_err(&client->dev, "No pages configured\n");  in ucd9000_probe()
615 		return -ENODEV;  in ucd9000_probe()
619 	info->func[0] = PMBUS_HAVE_TEMP;  in ucd9000_probe()
625 		dev_err(&client->dev, "Failed to read configuration data\n");  in ucd9000_probe()
626 		return -ENODEV;  in ucd9000_probe()
631 		if (page >= info->pages)  in ucd9000_probe()
637 			info->func[page] |= PMBUS_HAVE_VOUT  in ucd9000_probe()
641 			info->func[page] |= PMBUS_HAVE_TEMP2  in ucd9000_probe()
645 			info->func[page] |= PMBUS_HAVE_IOUT  in ucd9000_probe()
654 	if (mid->driver_data == ucd90124) {  in ucd9000_probe()
660 							data->fan_data[i]);  in ucd9000_probe()
666 		info->read_byte_data = ucd9000_read_byte_data;  in ucd9000_probe()
667 		info->func[0] |= PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12  in ucd9000_probe()
669 	} else if (mid->driver_data == ucd90320) {  in ucd9000_probe()
670 		info->read_byte_data = ucd90320_read_byte_data;  in ucd9000_probe()
671 		info->read_word_data = ucd90320_read_word_data;  in ucd9000_probe()
672 		info->write_byte = ucd90320_write_byte;  in ucd9000_probe()
673 		info->write_word_data = ucd90320_write_word_data;  in ucd9000_probe()
684 		dev_warn(&client->dev, "Failed to register debugfs: %d\n",  in ucd9000_probe()