[PATCH] ioc4: CONFIG split

The SGI IOC4 I/O controller chip drivers are currently all configured by
CONFIG_BLK_DEV_SGIIOC4.  This is undesirable as not all IOC4 hardware features
are needed by all systems.

This patch adds two configuration variables, CONFIG_SGI_IOC4 for core IOC4
driver support (see patch 1/3 in this series for further explanation) and
CONFIG_SERIAL_SGI_IOC4 to independently enable serial port support.

Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Acked-by: Pat Gefre <pfg@sgi.com>
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 6a15703f1cb9..25fcef2c42de 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -843,4 +843,13 @@ config SERIAL_JSM
           To compile this driver as a module, choose M here: the
           module will be called jsm.
 
+config SERIAL_SGI_IOC4
+        tristate "SGI IOC4 controller serial support"
+        depends on (IA64_GENERIC || IA64_SGI_SN2) && SGI_IOC4
+        select SERIAL_CORE
+        help
+                If you have an SGI Altix with an IOC4 based Base IO card
+                and wish to use the serial ports on this card, say Y.
+                Otherwise, say N.
+
 endmenu