1 // SPDX-License-Identifier: GPL-2.0+
3  * I2C multi-instantiate driver, pseudo driver to instantiate multiple
4  * i2c-clients from a single fwnode.
37 	struct i2c_multi_inst_data *multi;  in i2c_multi_inst_probe()  local
40 	struct device *dev = &pdev->dev;  in i2c_multi_inst_probe()
48 		return -ENODEV;  in i2c_multi_inst_probe()
58 	multi = devm_kmalloc(dev, struct_size(multi, clients, ret), GFP_KERNEL);  in i2c_multi_inst_probe()
59 	if (!multi)  in i2c_multi_inst_probe()
60 		return -ENOMEM;  in i2c_multi_inst_probe()
62 	multi->num_clients = ret;  in i2c_multi_inst_probe()
64 	for (i = 0; i < multi->num_clients && inst_data[i].type; i++) {  in i2c_multi_inst_probe()
67 		snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev),  in i2c_multi_inst_probe()
93 		multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info);  in i2c_multi_inst_probe()
94 		if (IS_ERR(multi->clients[i])) {  in i2c_multi_inst_probe()
95 			ret = dev_err_probe(dev, PTR_ERR(multi->clients[i]),  in i2c_multi_inst_probe()
96 					    "Error creating i2c-client, idx %d\n", i);  in i2c_multi_inst_probe()
100 	if (i < multi->num_clients) {  in i2c_multi_inst_probe()
102 		ret = -ENODEV;  in i2c_multi_inst_probe()
106 	platform_set_drvdata(pdev, multi);  in i2c_multi_inst_probe()
110 	while (--i >= 0)  in i2c_multi_inst_probe()
111 		i2c_unregister_device(multi->clients[i]);  in i2c_multi_inst_probe()
118 	struct i2c_multi_inst_data *multi = platform_get_drvdata(pdev);  in i2c_multi_inst_remove()  local
121 	for (i = 0; i < multi->num_clients; i++)  in i2c_multi_inst_remove()
122 		i2c_unregister_device(multi->clients[i]);  in i2c_multi_inst_remove()
148  * are not one-to-one mapped like in the array below. Secondly, on some boards
149  * the IRQ line from the PD controller is not actually connected at all. But the
167  * Note new device-ids must also be added to i2c_multi_instantiate_ids in
179 		.name = "I2C multi instantiate pseudo device driver",
187 MODULE_DESCRIPTION("I2C multi instantiate pseudo device driver");