ide: remove CONFIG_BLK_DEV_HD_IDE config option (take 2)

* Remove CONFIG_BLK_DEV_HD hack from init_hwif_default()
  ("hda=noprobe hdb=noprobe" kernel parameters should be used
  instead if somebody wishes to use the old "hd" driver).

* Make CONFIG_BLK_DEV_HD_ONLY config option available also when
  IDE subsystem is used and update help entry.

* Remove no longer needed CONFIG_BLK_DEV_HD_IDE config option.

v2:
* Update documentation to suggest "hda=noprobe hdb=noprobe"
  instead of obsoleted "ide0=noprobe".

* Update Documentation/ide/ide.txt.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

2 files changed, 5 insertions, 24 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index ac5875783430..4dc2761e9704 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -122,24 +122,6 @@ config BLK_DEV_IDE_SATA
 
           If unsure, say N.
 
-config BLK_DEV_HD_IDE
-        bool "Use old disk-only driver on primary interface"
-        depends on (X86 || SH_MPC1211)
-        ---help---
-          There are two drivers for MFM/RLL/IDE disks.  Most people use just
-          the new enhanced driver by itself.  This option however installs the
-          old hard disk driver to control the primary IDE/disk interface in
-          the system, leaving the new enhanced IDE driver to take care of only
-          the 2nd/3rd/4th IDE interfaces.  Doing this will prevent you from
-          having an IDE/ATAPI CD-ROM or tape drive connected to the primary
-          IDE interface.  Choosing this option may be useful for older systems
-          which have MFM/RLL/ESDI controller+drives at the primary port
-          address (0x1f0), along with IDE drives at the secondary/3rd/4th port
-          addresses.
-
-          Normally, just say N here; you will then use the new driver for all
-          4 interfaces.
-
 config BLK_DEV_IDEDISK
         tristate "Include IDE/ATA-2 DISK support"
         ---help---
@@ -1114,7 +1096,6 @@ endif
 
 config BLK_DEV_HD_ONLY
         bool "Old hard disk (MFM/RLL/IDE) driver"
-        depends on BLK_DEV_IDE=n
         help
           There are two drivers for MFM/RLL/IDE hard disks. Most people use
           the newer enhanced driver, but this old one is still around for two
@@ -1126,12 +1107,16 @@ config BLK_DEV_HD_ONLY
           for systems with only older MFM/RLL/ESDI drives. Choosing the old
           driver can save 13 KB or so of kernel memory.
 
+          If you want to use this driver together with the new one you have
+          to use "hda=noprobe hdb=noprobe" kernel parameters to prevent the new
+          driver from probing the primary interface.
+
           If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
           instead of this one. For more detailed information, read the
           Disk-HOWTO, available from
           <http://www.tldp.org/docs.html#howto>.
 
 config BLK_DEV_HD
-        def_bool BLK_DEV_HD_IDE || BLK_DEV_HD_ONLY
+        def_bool BLK_DEV_HD_ONLY
 
 endif # IDE
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index d791b1ffb586..96126b3b12e9 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -177,10 +177,6 @@ static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
         memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
 
         hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
-#ifdef CONFIG_BLK_DEV_HD
-        if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA)
-                hwif->noprobe = 1;      /* may be overridden by ide_setup() */
-#endif
 }
 
 /*