1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Multiplexer I2C chip drivers configuration
4#
5
6menu "Multiplexer I2C Chip support"
7	depends on I2C_MUX
8
9config I2C_ARB_GPIO_CHALLENGE
10	tristate "GPIO-based I2C arbitration"
11	depends on GPIOLIB || COMPILE_TEST
12	depends on OF || COMPILE_TEST
13	help
14	  If you say yes to this option, support will be included for an
15	  I2C multimaster arbitration scheme using GPIOs and a challenge &
16	  response mechanism where masters have to claim the bus by asserting
17	  a GPIO.
18
19	  This driver can also be built as a module.  If so, the module
20	  will be called i2c-arb-gpio-challenge.
21
22config I2C_MUX_GPIO
23	tristate "GPIO-based I2C multiplexer"
24	depends on GPIOLIB
25	help
26	  If you say yes to this option, support will be included for a
27	  GPIO based I2C multiplexer. This driver provides access to
28	  I2C busses connected through a MUX, which is controlled
29	  through GPIO pins.
30
31	  This driver can also be built as a module.  If so, the module
32	  will be called i2c-mux-gpio.
33
34config I2C_MUX_GPMUX
35	tristate "General Purpose I2C multiplexer"
36	select MULTIPLEXER
37	depends on OF || COMPILE_TEST
38	help
39	  If you say yes to this option, support will be included for a
40	  general purpose I2C multiplexer. This driver provides access to
41	  I2C busses connected through a MUX, which in turn is controlled
42	  by a MUX-controller from the MUX subsystem.
43
44	  This driver can also be built as a module.  If so, the module
45	  will be called i2c-mux-gpmux.
46
47config I2C_MUX_LTC4306
48	tristate "LTC LTC4306/5 I2C multiplexer"
49	select GPIOLIB
50	select REGMAP_I2C
51	help
52	  If you say yes here you get support for the Analog Devices
53	  LTC4306 or LTC4305 I2C mux/switch devices.
54
55	  This driver can also be built as a module.  If so, the module
56	  will be called i2c-mux-ltc4306.
57
58config I2C_MUX_PCA9541
59	tristate "NXP PCA9541 I2C Master Selector"
60	help
61	  If you say yes here you get support for the NXP PCA9541
62	  I2C Master Selector.
63
64	  This driver can also be built as a module.  If so, the module
65	  will be called i2c-mux-pca9541.
66
67config I2C_MUX_PCA954x
68	tristate "NXP PCA954x and PCA984x I2C Mux/switches"
69	depends on GPIOLIB || COMPILE_TEST
70	help
71	  If you say yes here you get support for the NXP PCA954x
72	  and PCA984x I2C mux/switch devices.
73
74	  This driver can also be built as a module.  If so, the module
75	  will be called i2c-mux-pca954x.
76
77config I2C_MUX_PINCTRL
78	tristate "pinctrl-based I2C multiplexer"
79	depends on PINCTRL
80	depends on OF || COMPILE_TEST
81	help
82	  If you say yes to this option, support will be included for an I2C
83	  multiplexer that uses the pinctrl subsystem, i.e. pin multiplexing.
84	  This is useful for SoCs whose I2C module's signals can be routed to
85	  different sets of pins at run-time.
86
87	  This driver can also be built as a module. If so, the module will be
88	  called i2c-mux-pinctrl.
89
90config I2C_MUX_REG
91	tristate "Register-based I2C multiplexer"
92	depends on HAS_IOMEM
93	help
94	  If you say yes to this option, support will be included for a
95	  register based I2C multiplexer. This driver provides access to
96	  I2C busses connected through a MUX, which is controlled
97	  by a single register.
98
99	  This driver can also be built as a module.  If so, the module
100	  will be called i2c-mux-reg.
101
102config I2C_DEMUX_PINCTRL
103	tristate "pinctrl-based I2C demultiplexer"
104	depends on PINCTRL && OF
105	select OF_DYNAMIC
106	help
107	  If you say yes to this option, support will be included for an I2C
108	  demultiplexer that uses the pinctrl subsystem. This is useful if you
109	  want to change the I2C master at run-time depending on features.
110
111config I2C_MUX_MLXCPLD
112	tristate "Mellanox CPLD based I2C multiplexer"
113	help
114	  If you say yes to this option, support will be included for a
115	  CPLD based I2C multiplexer. This driver provides access to
116	  I2C busses connected through a MUX, which is controlled
117	  by a CPLD register.
118
119	  This driver can also be built as a module.  If so, the module
120	  will be called i2c-mux-mlxcpld.
121
122endmenu
123