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d90a5a30 MY |
1 | # |
2 | # PINCTRL infrastructure and drivers | |
3 | # | |
4 | ||
5 | menu "Pin controllers" | |
6 | ||
7 | config PINCTRL | |
8 | bool "Support pin controllers" | |
9 | depends on DM | |
10 | help | |
11 | This enables the basic support for pinctrl framework. You may want | |
12 | to enable some more options depending on what you want to do. | |
13 | ||
14 | config PINCTRL_FULL | |
15 | bool "Support full pin controllers" | |
16 | depends on PINCTRL && OF_CONTROL | |
17 | default y | |
18 | help | |
19 | This provides Linux-compatible device tree interface for the pinctrl | |
20 | subsystem. This feature depends on device tree configuration because | |
21 | it parses a device tree to look for the pinctrl device which the | |
22 | peripheral device is associated with. | |
23 | ||
24 | If this option is disabled (it is the only possible choice for non-DT | |
25 | boards), the pinctrl core provides no systematic mechanism for | |
26 | identifying peripheral devices, applying needed pinctrl settings. | |
27 | It is totally up to the implementation of each low-level driver. | |
28 | You can save memory footprint in return for some limitations. | |
29 | ||
30 | config PINCTRL_GENERIC | |
31 | bool "Support generic pin controllers" | |
32 | depends on PINCTRL_FULL | |
33 | default y | |
34 | help | |
35 | Say Y here if you want to use the pinctrl subsystem through the | |
36 | generic DT interface. If enabled, some functions become available | |
37 | to parse common properties such as "pins", "groups", "functions" and | |
38 | some pin configuration parameters. It would be easier if you only | |
39 | need the generic DT interface for pin muxing and pin configuration. | |
40 | If you need to handle vendor-specific DT properties, you can disable | |
41 | this option and implement your own set_state callback in the pinctrl | |
42 | operations. | |
43 | ||
44 | config PINMUX | |
45 | bool "Support pin multiplexing controllers" | |
46 | depends on PINCTRL_GENERIC | |
47 | default y | |
48 | help | |
49 | This option enables pin multiplexing through the generic pinctrl | |
458a0700 SG |
50 | framework. Most SoCs have their own own multiplexing arrangement |
51 | where a single pin can be used for several functions. An SoC pinctrl | |
52 | driver allows the required function to be selected for each pin. | |
53 | The driver is typically controlled by the device tree. | |
d90a5a30 MY |
54 | |
55 | config PINCONF | |
56 | bool "Support pin configuration controllers" | |
57 | depends on PINCTRL_GENERIC | |
58 | help | |
59 | This option enables pin configuration through the generic pinctrl | |
60 | framework. | |
61 | ||
62 | config SPL_PINCTRL | |
63 | bool "Support pin controlloers in SPL" | |
64 | depends on SPL && SPL_DM | |
65 | help | |
66 | This option is an SPL-variant of the PINCTRL option. | |
67 | See the help of PINCTRL for details. | |
68 | ||
69 | config SPL_PINCTRL_FULL | |
70 | bool "Support full pin controllers in SPL" | |
71 | depends on SPL_PINCTRL && SPL_OF_CONTROL | |
72 | default y | |
73 | help | |
74 | This option is an SPL-variant of the PINCTRL_FULL option. | |
75 | See the help of PINCTRL_FULL for details. | |
76 | ||
77 | config SPL_PINCTRL_GENERIC | |
78 | bool "Support generic pin controllers in SPL" | |
79 | depends on SPL_PINCTRL_FULL | |
80 | default y | |
81 | help | |
82 | This option is an SPL-variant of the PINCTRL_GENERIC option. | |
83 | See the help of PINCTRL_GENERIC for details. | |
84 | ||
85 | config SPL_PINMUX | |
86 | bool "Support pin multiplexing controllers in SPL" | |
87 | depends on SPL_PINCTRL_GENERIC | |
88 | default y | |
89 | help | |
90 | This option is an SPL-variant of the PINMUX option. | |
91 | See the help of PINMUX for details. | |
458a0700 SG |
92 | The pinctrl subsystem can add a substantial overhead to the SPL |
93 | image since it typically requires quite a few tables either in the | |
94 | driver or in the device tree. If this is acceptable and you need | |
95 | to adjust pin multiplexing in SPL in order to boot into U-Boot, | |
96 | enable this option. You will need to enable device tree in SPL | |
97 | for this to work. | |
d90a5a30 MY |
98 | |
99 | config SPL_PINCONF | |
100 | bool "Support pin configuration controllers in SPL" | |
101 | depends on SPL_PINCTRL_GENERIC | |
102 | help | |
103 | This option is an SPL-variant of the PINCONF option. | |
104 | See the help of PINCONF for details. | |
105 | ||
106 | if PINCTRL || SPL_PINCTRL | |
107 | ||
9c6a3c67 MY |
108 | config PINCTRL_SANDBOX |
109 | bool "Sandbox pinctrl driver" | |
110 | depends on SANDBOX | |
111 | help | |
112 | This enables pinctrl driver for sandbox. Currently, this driver | |
113 | actually does nothing but print debug messages when pinctrl | |
114 | operations are invoked. | |
115 | ||
d90a5a30 MY |
116 | endif |
117 | ||
118 | endmenu |