gpio: Add VIA VX855 GPIO driver

This is needed for supporting the upcoming VX855 camera and OLPC DCON
drivers, as well as the advanced viafb features on non-OLPC hardware
based on this chip.

Based on earlier work by Harald Welte.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index dd9b4ba8d32d..3143ac795eb0 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -116,6 +116,18 @@ config GPIO_SCH
           This driver can also be built as a module. If so, the module
           will be called sch-gpio.
 
+config GPIO_VX855
+        tristate "VIA VX855/VX875 GPIO"
+        depends on GPIOLIB
+        select MFD_CORE
+        select MFD_VX855
+        help
+          Support access to the VX855/VX875 GPIO lines through the gpio library.
+
+          This driver provides common support for accessing the device,
+          additional drivers must be enabled in order to use the
+          functionality of the device.
+
 comment "I2C GPIO expanders:"
 
 config GPIO_MAX7300