ide: make remaining built-in only IDE host drivers modular (take 2)

* Make remaining built-in only IDE host drivers modular, add ide-scan-pci.c
  file for probing PCI host drivers registered with IDE core (special case
  for built-in IDE and CONFIG_IDEPCI_PCIBUS_ORDER=y) and then take care of
  the ordering in which all IDE host drivers are probed when IDE is built-in
  during link time.

* Move probing of gayle, falconide, macide, q40ide and buddha (m68k arch
  specific) host drivers, before PCI ones (no PCI on m68k), ide-cris (cris
  arch specific), cmd640 (x86 arch specific) and pmac (ppc arch specific).

* Move probing of ide-cris (cris arch specific) host driver before cmd640
  (x86 arch specific).

* Move probing of mpc8xx (ppc specific) host driver before ide-pnp (depends
  on ISA and none of ppc platform that use mpc8xx supports ISA) and ide-h8300
  (h8300 arch specific).

* Add "probe_vlb" kernel parameter to cmd640 host driver and update
  Documentation/ide.txt accordingly.

* Make IDE_ARM config option visible so it can also be disabled if needed.

* Remove bogus comment from ide.c while at it.

v2:
* Fix two issues spotted by Sergei:
  - replace ENOMEM error value by ENOENT in ide-h8300 host driver
  - fix MODULE_PARM_DESC() in cmd640 host driver

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 14 insertions, 5 deletions

diff --git a/drivers/ide/legacy/Makefile b/drivers/ide/legacy/Makefile
index 409822349f10..7043ec7d1e05 100644
--- a/drivers/ide/legacy/Makefile
+++ b/drivers/ide/legacy/Makefile
@@ -1,15 +1,24 @@
 
+# link order is important here
+
 obj-$(CONFIG_BLK_DEV_ALI14XX)           += ali14xx.o
+obj-$(CONFIG_BLK_DEV_UMC8672)           += umc8672.o
 obj-$(CONFIG_BLK_DEV_DTC2278)           += dtc2278.o
 obj-$(CONFIG_BLK_DEV_HT6560B)           += ht6560b.o
 obj-$(CONFIG_BLK_DEV_QD65XX)            += qd65xx.o
-obj-$(CONFIG_BLK_DEV_UMC8672)           += umc8672.o
 
-obj-$(CONFIG_BLK_DEV_IDECS)             += ide-cs.o
+obj-$(CONFIG_BLK_DEV_GAYLE)             += gayle.o
+obj-$(CONFIG_BLK_DEV_FALCON_IDE)        += falconide.o
+obj-$(CONFIG_BLK_DEV_MAC_IDE)           += macide.o
+obj-$(CONFIG_BLK_DEV_Q40IDE)            += q40ide.o
+obj-$(CONFIG_BLK_DEV_BUDDHA)            += buddha.o
 
-obj-$(CONFIG_BLK_DEV_PLATFORM)          += ide_platform.o
+ifeq ($(CONFIG_BLK_DEV_IDECS), m)
+        obj-m += ide-cs.o
+endif
 
-# Last of all
-obj-$(CONFIG_BLK_DEV_HD)                += hd.o
+ifeq ($(CONFIG_BLK_DEV_PLATFORM), m)
+        obj-m += ide_platform.o
+endif
 
 EXTRA_CFLAGS    := -Idrivers/ide