Staging: ipack: add support for IP-OCTAL mezzanine board

IP-OCTAL is a 8-channels serial port device. There are several models one per
each standard: RS-232, RS-422, RS-485.

This driver can manage all of them.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: samuelig

drivers/staging/ipack/Kconfig

@@ -9,6 +9,8 @@ menuconfig IPACK_BUS
 
 if IPACK_BUS
 
+source "drivers/staging/ipack/devices/Kconfig"
+
 source "drivers/staging/ipack/bridges/Kconfig"
 
 endif # IPACK

drivers/staging/ipack/Makefile

@@ -2,4 +2,5 @@
 # Makefile for the IPACK bridge device drivers.
 #
 obj-$(CONFIG_IPACK_BUS)		+= ipack.o
+obj-y				+= devices/
 obj-y				+= bridges/

drivers/staging/ipack/TODO

@@ -22,6 +22,15 @@ TPCI-200
 * It has a linked list with the tpci200 devices it is managing. Get rid of it
   and use driver_for_each_device() instead.
 
+IP-OCTAL
+--------
+
+* It has a linked list which saves the devices it is currently
+  managing. It should use the driver_for_each_device() function. It is not there
+  due to the impossibility of using container_of macro to recover the
+  corresponding "struct ipoctal" because the attribute "struct ipack_device" is
+  a pointer. This code should be refactored.
+
 Ipack
 -----
 

drivers/staging/ipack/devices/Kconfig

@@ -0,0 +1,7 @@
+config SERIAL_IPOCTAL
+	tristate "IndustryPack IP-OCTAL uart support"
+	depends on IPACK_BUS
+	help
+	  This driver supports the IPOCTAL serial port device for the IndustryPack bus.
+	default n
+

drivers/staging/ipack/devices/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_SERIAL_IPOCTAL) += ipoctal.o