[PATCH] IDE: claim extra DMA ports regardless of channel

- Claim extra DMA I/O ports regardless of what IDE channels are
  present/enabled.

- Remove extra ports handling from ide_mapped_mmio_dma() since it's not
  applicable to the custom-mapping IDE drivers.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 99620451d958..11608cd03d4c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -775,10 +775,12 @@ typedef struct hwif_s {
         unsigned long   dma_prdtable;   /* actual prd table address */
         unsigned long   dma_base2;      /* extended base addr for dma ports */
 
-        unsigned        dma_extra;      /* extra addr for dma ports */
         unsigned long   config_data;    /* for use by chipset-specific code */
         unsigned long   select_data;    /* for use by chipset-specific code */
 
+        unsigned long   extra_base;     /* extra addr for dma ports */
+        unsigned        extra_ports;    /* number of extra dma ports */
+
         unsigned        noprobe    : 1; /* don't probe for this interface */
         unsigned        present    : 1; /* this interface exists */
         unsigned        hold       : 1; /* this interface is always present */