[PATCH] alim15x3.c: M5229 (rev c8) support for DMA cd-writer

Configuration bits are not set properly for DMA on some chipset revisions.
It has already been corrected for M5229 (rev c7) but not for M5229 (rev
c8).  This leads to the bug described at
http://bugzilla.kernel.org/show_bug.cgi?id=5786 (lost interrupt + ide bus
hangs).

Signed-off-by: Michael De Backer <micdb@skynet.be>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 351dab2fcacf730f0c070cf772383270efa186ab..d419e4bb54f4454e965aacbc32d1f7a902f62fdb 100644 (file)
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -730,7 +730,7 @@ static unsigned int __devinit ata66_ali15x3 (ide_hwif_t *hwif)
        
        if(m5229_revision <= 0x20)
                tmpbyte = (tmpbyte & (~0x02)) | 0x01;
-       else if (m5229_revision == 0xc7)
+       else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
                tmpbyte |= 0x03;
        else
                tmpbyte |= 0x01;