drivers/pinctrl/Kconfig

   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
  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.
  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.
  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.
  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
 108 config ROCKCHIP_PINCTRL
 109         bool "Rockchip pin control driver"
 110         depends on DM
 111         help
 112           Support pin multiplexing control on Rockchip SoCs. The driver is
 113           controlled by a device tree node which contains both the GPIO
 114           definitions and pin control functions for each available multiplex
 115           function.
 116
 117 config ROCKCHIP_3036_PINCTRL
 118         bool "Rockchip rk3036 pin control driver"
 119         depends on DM
 120         help
 121           Support pin multiplexing control on Rockchip rk3036 SoCs. The driver is
 122           controlled by a device tree node which contains both the GPIO
 123           definitions and pin control functions for each available multiplex
 124           function.
 125
 126 config PINCTRL_SANDBOX
 127         bool "Sandbox pinctrl driver"
 128         depends on SANDBOX
 129         help
 130           This enables pinctrl driver for sandbox.  Currently, this driver
 131           actually does nothing but print debug messages when pinctrl
 132           operations are invoked.
 133
 134 config PIC32_PINCTRL
 135         bool "Microchip PIC32 pin-control and pin-mux driver"
 136         depends on DM && MACH_PIC32
 137         default y
 138         help
 139           Supports individual pin selection and configuration for each remappable
 140           peripheral available on Microchip PIC32 SoCs. This driver is controlled
 141           by a device tree node which contains both GPIO defintion and pin control
 142           functions.
 143
 144 endif
 145
 146 source "drivers/pinctrl/uniphier/Kconfig"
 147
 148 endmenu