Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

[linux-2.6-omap-h63xx.git] / drivers / gpio / Kconfig

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index de202dbe53008c2a7c8a5e24cf67256292148658..7f2ee27fe76be15a947db4f5fdf1f7690cbe4caa 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,15 +2,40 @@
 # GPIO infrastructure and expanders
 #
 
-config HAVE_GPIO_LIB
+config ARCH_WANT_OPTIONAL_GPIOLIB
        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.
+         Selecting this from the architecture code will cause the gpiolib
+         code to always get built in.
+
+
+
+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.
 
-menu "GPIO Support"
-       depends on HAVE_GPIO_LIB
+if GPIOLIB
 
 config DEBUG_GPIO
        bool "Debug GPIO calls"
@@ -42,6 +67,25 @@ config GPIO_SYSFS
 
 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
        tristate "PCA953x, PCA955x, and MAX7310 I/O ports"
        depends on I2C
@@ -83,6 +127,13 @@ config GPIO_PCF857X
          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
@@ -116,4 +167,4 @@ config GPIO_MCP23S08
          SPI driver for Microchip MCP23S08 I/O expander.  This provides
          a GPIO interface supporting inputs and outputs.
 
-endmenu
+endif