1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2015 - 2016 Xilinx, Inc.
13 #include <asm-generic/gpio.h>
30 	u32 width;  member
35 	u32 width; /* I2C mux width - number of busses */  member
43 		.width = 4,
48 		.width = 8,
53 		.width = 8,
58 		.width = 4,
68 	return dm_i2c_write(mux, priv->addr, &byte, 1);  in pca954x_deselect()
78 	if (chip->muxtype == pca954x_ismux)  in pca954x_select()
79 		byte = channel | chip->enable;  in pca954x_select()
83 	return dm_i2c_write(mux, priv->addr, &byte, 1);  in pca954x_select()
104 	priv->addr = dev_read_u32_default(dev, "reg", 0);  in pca954x_ofdata_to_platdata()
105 	if (!priv->addr) {  in pca954x_ofdata_to_platdata()
107 		return -ENODEV;  in pca954x_ofdata_to_platdata()
109 	priv->width = chip->width;  in pca954x_ofdata_to_platdata()
111 	if (!priv->width) {  in pca954x_ofdata_to_platdata()
112 		debug("No I2C MUX width specified\n");  in pca954x_ofdata_to_platdata()
113 		return -EINVAL;  in pca954x_ofdata_to_platdata()
116 	debug("Device %s at 0x%x with width %d\n",  in pca954x_ofdata_to_platdata()
117 	      dev->name, priv->addr, priv->width);  in pca954x_ofdata_to_platdata()
128 		err = gpio_request_by_name(dev, "reset-gpios", 0,  in pca954x_probe()
129 				&priv->gpio_mux_reset, GPIOD_IS_OUT);  in pca954x_probe()
132 		if (err && (err != -ENOENT))  in pca954x_probe()
136 		if (dm_gpio_is_valid(&priv->gpio_mux_reset))  in pca954x_probe()
137 			dm_gpio_set_value(&priv->gpio_mux_reset, 0);  in pca954x_probe()
148 		if (dm_gpio_is_valid(&priv->gpio_mux_reset))  in pca954x_remove()
149 			dm_gpio_free(dev, &priv->gpio_mux_reset);  in pca954x_remove()