1 // SPDX-License-Identifier: GPL-2.0-only
3 #include <linux/i2c.h>
4 #include <linux/i2c-mux.h>
17 static int mpu3050_i2c_bypass_select(struct i2c_mux_core *mux, u32 chan_id)  in mpu3050_i2c_bypass_select()  argument
19 	struct mpu3050 *mpu3050 = i2c_mux_priv(mux);  in mpu3050_i2c_bypass_select()
22 	pm_runtime_get_sync(mpu3050->dev);  in mpu3050_i2c_bypass_select()
26 static int mpu3050_i2c_bypass_deselect(struct i2c_mux_core *mux, u32 chan_id)  in mpu3050_i2c_bypass_deselect()  argument
28 	struct mpu3050 *mpu3050 = i2c_mux_priv(mux);  in mpu3050_i2c_bypass_deselect()
30 	pm_runtime_mark_last_busy(mpu3050->dev);  in mpu3050_i2c_bypass_deselect()
31 	pm_runtime_put_autosuspend(mpu3050->dev);  in mpu3050_i2c_bypass_deselect()
43 	if (!i2c_check_functionality(client->adapter,  in mpu3050_i2c_probe()
45 		return -EOPNOTSUPP;  in mpu3050_i2c_probe()
48 		name = id->name;  in mpu3050_i2c_probe()
50 		return -ENODEV;  in mpu3050_i2c_probe()
54 		dev_err(&client->dev, "Failed to register i2c regmap: %pe\n",  in mpu3050_i2c_probe()
59 	ret = mpu3050_common_probe(&client->dev, regmap, client->irq, name);  in mpu3050_i2c_probe()
63 	/* The main driver is up, now register the I2C mux */  in mpu3050_i2c_probe()
64 	mpu3050 = iio_priv(dev_get_drvdata(&client->dev));  in mpu3050_i2c_probe()
65 	mpu3050->i2cmux = i2c_mux_alloc(client->adapter, &client->dev,  in mpu3050_i2c_probe()
69 	/* Just fail the mux, there is no point in killing the driver */  in mpu3050_i2c_probe()
70 	if (!mpu3050->i2cmux)  in mpu3050_i2c_probe()
71 		dev_err(&client->dev, "failed to allocate I2C mux\n");  in mpu3050_i2c_probe()
73 		mpu3050->i2cmux->priv = mpu3050;  in mpu3050_i2c_probe()
75 		i2c_mux_add_adapter(mpu3050->i2cmux, 0, 0, 0);  in mpu3050_i2c_probe()
83 	struct iio_dev *indio_dev = dev_get_drvdata(&client->dev);  in mpu3050_i2c_remove()
86 	if (mpu3050->i2cmux)  in mpu3050_i2c_remove()
87 		i2c_mux_del_adapters(mpu3050->i2cmux);  in mpu3050_i2c_remove()
89 	mpu3050_common_remove(&client->dev);  in mpu3050_i2c_remove()
100 MODULE_DEVICE_TABLE(i2c, mpu3050_i2c_id);
116 		.name = "mpu3050-i2c",