| Masahiro Yamada | d90a5a3 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 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 |
| Simon Glass | 458a070 | 2015-08-30 16:55:12 -0600 | [diff] [blame] | 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. |
| Masahiro Yamada | d90a5a3 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 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. |
| Simon Glass | 458a070 | 2015-08-30 16:55:12 -0600 | [diff] [blame] | 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. |
| Masahiro Yamada | d90a5a3 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 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 | |
| Masahiro Yamada | 9c6a3c6 | 2015-08-27 12:44:30 +0900 | [diff] [blame] | 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 | |
| Masahiro Yamada | d90a5a3 | 2015-08-27 12:44:29 +0900 | [diff] [blame] | 116 | endif |
| 117 | |
| 118 | endmenu |