[SERIAL] Allow 8250 PCI, PNP, GSC and HP300 support to be disabled

Allow the 8250 probe modules to be disabled if we're building for
with EMBEDDED enabled.  This reduces the kernel size by not including
unnecessary probe module support.

Original idea from Matt Mackall for PCI only, expanded to others by
rmk.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/serial/Kconfig

@@ -63,6 +63,33 @@ config SERIAL_8250_CONSOLE
 
 	  If unsure, say N.
 
+config SERIAL_8250_GSC
+	tristate
+	depends on SERIAL_8250 && GSC
+	default SERIAL_8250
+
+config SERIAL_8250_PCI
+	tristate "8250/16550 PCI device support" if EMBEDDED
+	depends on SERIAL_8250 && PCI
+	default SERIAL_8250
+	help
+	  This builds standard PCI serial support. You may be able to
+	  disable this feature if you only need legacy serial support.
+	  Saves about 9K.
+
+config SERIAL_8250_PNP
+	tristate "8250/16550 PNP device support" if EMBEDDED
+	depends on SERIAL_8250 && PNP
+	default SERIAL_8250
+	help
+	  This builds standard PNP serial support. You may be able to
+	  disable this feature if you only need legacy serial support.
+
+config SERIAL_8250_HP300
+	tristate
+	depends on SERIAL_8250 && HP300
+	default SERIAL_8250
+
 config SERIAL_8250_CS
 	tristate "8250/16550 PCMCIA device support"
 	depends on PCMCIA && SERIAL_8250

drivers/serial/Makefile

@@ -4,15 +4,13 @@
 #  $Id: Makefile,v 1.8 2002/07/21 21:32:30 rmk Exp $
 #
 
-serial-8250-y :=
-serial-8250-$(CONFIG_PNP) += 8250_pnp.o
-serial-8250-$(CONFIG_GSC) += 8250_gsc.o
-serial-8250-$(CONFIG_PCI) += 8250_pci.o
-serial-8250-$(CONFIG_HP300) += 8250_hp300.o
-
 obj-$(CONFIG_SERIAL_CORE) += serial_core.o
 obj-$(CONFIG_SERIAL_21285) += 21285.o
-obj-$(CONFIG_SERIAL_8250) += 8250.o $(serial-8250-y)
+obj-$(CONFIG_SERIAL_8250) += 8250.o
+obj-$(CONFIG_SERIAL_8250_PNP) += 8250_pnp.o
+obj-$(CONFIG_SERIAL_8250_GSC) += 8250_gsc.o
+obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o
+obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o
 obj-$(CONFIG_SERIAL_8250_CS) += serial_cs.o
 obj-$(CONFIG_SERIAL_8250_ACORN) += 8250_acorn.o
 obj-$(CONFIG_SERIAL_8250_CONSOLE) += 8250_early.o