NFS: Fix the XDR iovec calculation in nfs3_xdr_setaclargs

[safe/jmp/linux-2.6] / drivers / gpio / Kconfig

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index bbd2834..edb0253 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,44 +2,118 @@
 # GPIO infrastructure and expanders
 #
 
 # GPIO infrastructure and expanders
 #
 

-config HAVE_GPIO_LIB
+config ARCH_WANT_OPTIONAL_GPIOLIB

        bool
        help
        bool
        help

+         Select this config option from the architecture Kconfig, if
+         it is possible to use gpiolib on the architecture, but let the
+         user decide whether to actually build it or not.
+         Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
+         not depend on GPIOs being available, but rather let the user
+         decide whether he needs it or not.
+
+config ARCH_REQUIRE_GPIOLIB
+       bool
+       select GPIOLIB
+       help

          Platforms select gpiolib if they use this infrastructure
          for all their GPIOs, usually starting with ones integrated
          into SOC processors.
          Platforms select gpiolib if they use this infrastructure
          for all their GPIOs, usually starting with ones integrated
          into SOC processors.

+         Selecting this from the architecture code will cause the gpiolib
+         code to always get built in.

 
 

-menu "GPIO Support"
-       depends on HAVE_GPIO_LIB
+
+
+menuconfig GPIOLIB
+       bool "GPIO Support"
+       depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
+       select GENERIC_GPIO
+       help
+         This enables GPIO support through the generic GPIO library.
+         You only need to enable this, if you also want to enable
+         one or more of the GPIO expansion card drivers below.
+
+         If unsure, say N.
+
+if GPIOLIB

 
 config DEBUG_GPIO
        bool "Debug GPIO calls"
        depends on DEBUG_KERNEL
        help
          Say Y here to add some extra checks and diagnostics to GPIO calls.
 
 config DEBUG_GPIO
        bool "Debug GPIO calls"
        depends on DEBUG_KERNEL
        help
          Say Y here to add some extra checks and diagnostics to GPIO calls.

-         The checks help ensure that GPIOs have been properly initialized
-         before they are used and that sleeping calls aren not made from
-         nonsleeping contexts.  They can make bitbanged serial protocols
+         These checks help ensure that GPIOs have been properly initialized
+         before they are used, and that sleeping calls are not made from
+         non-sleeping contexts.  They can make bitbanged serial protocols

          slower.  The diagnostics help catch the type of setup errors
          that are most common when setting up new platforms or boards.
 
          slower.  The diagnostics help catch the type of setup errors
          that are most common when setting up new platforms or boards.
 

+config GPIO_SYSFS
+       bool "/sys/class/gpio/... (sysfs interface)"
+       depends on SYSFS && EXPERIMENTAL
+       help
+         Say Y here to add a sysfs interface for GPIOs.
+
+         This is mostly useful to work around omissions in a system's
+         kernel support.  Those are common in custom and semicustom
+         hardware assembled using standard kernels with a minimum of
+         custom patches.  In those cases, userspace code may import
+         a given GPIO from the kernel, if no kernel driver requested it.
+
+         Kernel drivers may also request that a particular GPIO be
+         exported to userspace; this can be useful when debugging.
+

 # put expanders in the right section, in alphabetical order
 
 # put expanders in the right section, in alphabetical order
 

+comment "Memory mapped GPIO expanders:"
+
+config GPIO_XILINX
+       bool "Xilinx GPIO support"
+       depends on PPC_OF
+       help
+         Say yes here to support the Xilinx FPGA GPIO device
+

 comment "I2C GPIO expanders:"
 
 comment "I2C GPIO expanders:"
 

+config GPIO_MAX732X
+       tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
+       depends on I2C
+       help
+         Say yes here to support the MAX7319, MAX7320-7327 series of I2C
+         Port Expanders. Each IO port on these chips has a fixed role of
+         Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
+         Input and Output (designed by 'P'). The combinations are listed
+         below:
+
+         8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
+                       max7322 (4I4O), max7323 (4P4O)
+
+         16 bits:      max7324 (8I8O), max7325 (8P8O),
+                       max7326 (4I12O), max7327 (4P12O)
+
+         Board setup code must specify the model to use, and the start
+         number for these GPIOs.
+

 config GPIO_PCA953X
 config GPIO_PCA953X

-       tristate "PCA953x I/O ports"
+       tristate "PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports"

        depends on I2C
        help
        depends on I2C
        help

-         Say yes here to support the PCA9534 (8-bit), PCA9535 (16-bit),
-         PCA9536 (4-bit), PCA9537 (4-bit), PCA9538 (8-bit), and PCA9539
-         (16-bit) I/O ports. These parts are made by NXP and TI.
+         Say yes here to provide access to several register-oriented
+         SMBus I/O expanders, made mostly by NXP or TI.  Compatible
+         models include:
+
+         4 bits:       pca9536, pca9537
+
+         8 bits:       max7310, pca9534, pca9538, pca9554, pca9557,
+                       tca6408
+
+         16 bits:      pca9535, pca9539, pca9555, tca6416

 
          This driver can also be built as a module.  If so, the module
          will be called pca953x.
 
 config GPIO_PCF857X
 
          This driver can also be built as a module.  If so, the module
          will be called pca953x.
 
 config GPIO_PCF857X

-       tristate "PCF857x, PCA857x, and PCA967x I2C GPIO expanders"
+       tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"

        depends on I2C
        help
          Say yes here to provide access to most "quasi-bidirectional" I2C
        depends on I2C
        help
          Say yes here to provide access to most "quasi-bidirectional" I2C


@@ -48,7 +122,8 @@ config GPIO_PCF857X
          some of them.  Compatible models include:
 
          8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
          some of them.  Compatible models include:
 
          8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,

-                   pca9670, pca9672, pca9674, pca9674a
+                   pca9670, pca9672, pca9674, pca9674a,
+                   max7328, max7329

 
          16 bits:  pcf8575, pcf8575c, pca8575,
                    pca9671, pca9673, pca9675
 
          16 bits:  pcf8575, pcf8575c, pca8575,
                    pca9671, pca9673, pca9675


@@ -61,8 +136,39 @@ config GPIO_PCF857X
          This driver provides an in-kernel interface to those GPIOs using
          platform-neutral GPIO calls.
 
          This driver provides an in-kernel interface to those GPIOs using
          platform-neutral GPIO calls.
 

+config GPIO_TWL4030
+       tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
+       depends on TWL4030_CORE
+       help
+         Say yes here to access the GPIO signals of various multi-function
+         power management chips from Texas Instruments.
+
+comment "PCI GPIO expanders:"
+
+config GPIO_BT8XX
+       tristate "BT8XX GPIO abuser"
+       depends on PCI && VIDEO_BT848=n
+       help
+         The BT8xx frame grabber chip has 24 GPIO pins than can be abused
+         as a cheap PCI GPIO card.
+
+         This chip can be found on Miro, Hauppauge and STB TV-cards.
+
+         The card needs to be physically altered for using it as a
+         GPIO card. For more information on how to build a GPIO card
+         from a BT8xx TV card, see the documentation file at
+         Documentation/bt8xxgpio.txt
+
+         If unsure, say N.
+

 comment "SPI GPIO expanders:"
 
 comment "SPI GPIO expanders:"
 

+config GPIO_MAX7301
+       tristate "Maxim MAX7301 GPIO expander"
+       depends on SPI_MASTER
+       help
+         gpio driver for Maxim MAX7301 SPI GPIO expander.
+

 config GPIO_MCP23S08
        tristate "Microchip MCP23S08 I/O expander"
        depends on SPI_MASTER
 config GPIO_MCP23S08
        tristate "Microchip MCP23S08 I/O expander"
        depends on SPI_MASTER


@@ -70,4 +176,4 @@ config GPIO_MCP23S08
          SPI driver for Microchip MCP23S08 I/O expander.  This provides
          a GPIO interface supporting inputs and outputs.
 
          SPI driver for Microchip MCP23S08 I/O expander.  This provides
          a GPIO interface supporting inputs and outputs.
 

-endmenu
+endif