Lines Matching +full:mule +full:- +full:i2c +full:- +full:mux

1 // SPDX-License-Identifier: GPL-2.0
3  * Theobroma Systems Mule I2C device multiplexer
8 #include <linux/i2c-mux.h>
9 #include <linux/i2c.h>
25 	struct mule_i2c_reg_mux *mux = muxc->priv;  in mule_i2c_mux_select()  local
27 	return regmap_write(mux->regmap, MULE_I2C_MUX_CONFIG_REG, dev);  in mule_i2c_mux_select()
46 	struct device *mux_dev = &pdev->dev;  in mule_i2c_mux_probe()
55 	/* Count devices on the mux */  in mule_i2c_mux_probe()
56 	ndev = of_get_child_count(mux_dev->of_node);  in mule_i2c_mux_probe()
57 	dev_dbg(mux_dev, "%d devices on the mux\n", ndev);  in mule_i2c_mux_probe()
59 	client = to_i2c_client(mux_dev->parent);  in mule_i2c_mux_probe()
61 	muxc = i2c_mux_alloc(client->adapter, mux_dev, ndev, sizeof(*priv),  in mule_i2c_mux_probe()
64 		return -ENOMEM;  in mule_i2c_mux_probe()
68 	priv->regmap = dev_get_regmap(mux_dev->parent, NULL);  in mule_i2c_mux_probe()
69 	if (!priv->regmap)  in mule_i2c_mux_probe()
70 		return dev_err_probe(mux_dev, -ENODEV,  in mule_i2c_mux_probe()
71 				     "No parent i2c register map\n");  in mule_i2c_mux_probe()
77 	 * mule fw. Mule fw without mux support will accept write ops to the  in mule_i2c_mux_probe()
85 	ret = regmap_read(priv->regmap, MULE_I2C_MUX_CONFIG_REG, &readback);  in mule_i2c_mux_probe()
95 				     "Failed to register mux remove\n");  in mule_i2c_mux_probe()
98 	for_each_child_of_node(mux_dev->of_node, dev) {  in mule_i2c_mux_probe()
109 				 "Mux is not supported, please update Mule FW\n");  in mule_i2c_mux_probe()
116 				 "Device %d not supported, please update Mule FW\n", reg);  in mule_i2c_mux_probe()
131 	{ .compatible = "tsd,mule-i2c-mux", },
138 		.name	= "mule-i2c-mux",
147 MODULE_DESCRIPTION("I2C mux driver for Theobroma Systems Mule");