gpio: add bt8xxgpio driver

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpio / Kconfig

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index bbd28342e771f415a4b7365653e3383757a398a2..de202dbe53008c2a7c8a5e24cf67256292148658 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -23,23 +23,44 @@ config DEBUG_GPIO
          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
 
 comment "I2C GPIO expanders:"
 
 config GPIO_PCA953X
 # put expanders in the right section, in alphabetical order
 
 comment "I2C GPIO expanders:"
 
 config GPIO_PCA953X

-       tristate "PCA953x I/O ports"
+       tristate "PCA953x, PCA955x, 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
+
+         16 bits:      pca9535, pca9539, pca9555

 
          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 +69,8 @@ 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 +83,32 @@ 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.
 

+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