1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/i2c.h>
30 	switch (st->chip_type) {  in inv_mpu_i2c_aux_bus()
39 		/* no i2c auxiliary bus on the chip */  in inv_mpu_i2c_aux_bus()
44 		if (st->magn_disabled)  in inv_mpu_i2c_aux_bus()
56 	struct device *dev = indio_dev->dev.parent;  in inv_mpu_i2c_aux_setup()
61 	 * MPU9xxx magnetometer support requires to disable i2c auxiliary bus.  in inv_mpu_i2c_aux_setup()
63 	 * i2c auxiliary bus if it used.  in inv_mpu_i2c_aux_setup()
64 	 * Check for i2c-gate node in devicetree and set magnetometer disabled.  in inv_mpu_i2c_aux_setup()
67 	switch (st->chip_type) {  in inv_mpu_i2c_aux_setup()
71 		mux_node = device_get_named_child_node(dev, "i2c-gate");  in inv_mpu_i2c_aux_setup()
73 			st->magn_disabled = true;  in inv_mpu_i2c_aux_setup()
82 	/* enable i2c bypass when using i2c auxiliary bus */  in inv_mpu_i2c_aux_setup()
84 		ret = regmap_write(st->map, st->reg->int_pin_cfg,  in inv_mpu_i2c_aux_setup()
85 				   st->irq_mask | INV_MPU6050_BIT_BYPASS_EN);  in inv_mpu_i2c_aux_setup()
94  *  inv_mpu_probe() - probe function.
95  *  @client:          i2c client.
109 	if (!i2c_check_functionality(client->adapter,  in inv_mpu_probe()
111 		return -EOPNOTSUPP;  in inv_mpu_probe()
113 	match = device_get_match_data(&client->dev);  in inv_mpu_probe()
116 		name = client->name;  in inv_mpu_probe()
119 			id->driver_data;  in inv_mpu_probe()
120 		name = id->name;  in inv_mpu_probe()
122 		return -ENOSYS;  in inv_mpu_probe()
127 		dev_err(&client->dev, "Failed to register i2c regmap: %pe\n",  in inv_mpu_probe()
132 	result = inv_mpu_core_probe(regmap, client->irq, name,  in inv_mpu_probe()
137 	st = iio_priv(dev_get_drvdata(&client->dev));  in inv_mpu_probe()
138 	if (inv_mpu_i2c_aux_bus(&client->dev)) {  in inv_mpu_probe()
139 		/* declare i2c auxiliary bus */  in inv_mpu_probe()
140 		st->muxc = i2c_mux_alloc(client->adapter, &client->dev,  in inv_mpu_probe()
143 		if (!st->muxc)  in inv_mpu_probe()
144 			return -ENOMEM;  in inv_mpu_probe()
145 		st->muxc->priv = dev_get_drvdata(&client->dev);  in inv_mpu_probe()
146 		result = i2c_mux_add_adapter(st->muxc, 0, 0);  in inv_mpu_probe()
157 	i2c_mux_del_adapters(st->muxc);  in inv_mpu_probe()
166 	if (st->muxc) {  in inv_mpu_remove()
168 		i2c_mux_del_adapters(st->muxc);  in inv_mpu_remove()
198 MODULE_DEVICE_TABLE(i2c, inv_mpu_id);
290 		.name	=	"inv-mpu6050-i2c",