[PATCH] 2.4.1 ISA DMA hang on ALi15x3

[PATCH] 2.4.1 ISA DMA hang on ALi15x3

[Andreas Tscharner]

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Hello World,

This little patch enables the workaround for the ISA DMA bug on ALi15x3
chipsets with the PCI-ISA bridge. The patch was originally written by
Angelo Di Filippo <adifilip@ubiquity.it> for Kernel 2.3.45. I adapted it to
Kernel 2.4.1.

This chipset can be found in many laptops of the Acer Extensa series, and
the bug prevents the sound chip (an OPL3/SA2) from working.


--- drivers/pci/quirks.c.orig   Fri Mar  2 17:40:45 2001
+++ drivers/pci/quirks.c        Fri Mar  2 16:10:35 2001
@@ -261,6 +261,7 @@
        { PCI_FIXUP_FINAL,      PCI_VENDOR_ID_VIA,     
PCI_DEVICE_ID_VIA_82C586_0,     quirk_isa_dma_hangs },
        { PCI_FIXUP_FINAL,      PCI_VENDOR_ID_VIA,     
PCI_DEVICE_ID_VIA_82C596,       quirk_isa_dma_hangs },
        { PCI_FIXUP_FINAL,      PCI_VENDOR_ID_INTEL,   
PCI_DEVICE_ID_INTEL_82371SB_0,  quirk_isa_dma_hangs },
+       { PCI_FIXUP_FINAL,      PCI_VENDOR_ID_AL,      
PCI_DEVICE_ID_AL_M1533,         quirk_isa_dma_hangs },
        { PCI_FIXUP_HEADER,     PCI_VENDOR_ID_S3,      
PCI_DEVICE_ID_S3_868,           quirk_s3_64M },
        { PCI_FIXUP_HEADER,     PCI_VENDOR_ID_S3,      
PCI_DEVICE_ID_S3_968,           quirk_s3_64M },
        { PCI_FIXUP_FINAL,      PCI_VENDOR_ID_INTEL,   
PCI_DEVICE_ID_INTEL_82437,      quirk_triton }, 


The patch is also attached in case my mailtool kills the format (I don't
hope it does)

Best regards
	Andreas
-- 
Andreas Tscharner                                     starfire@dplanet.ch
-------------------------------------------------------------------------
"Programming today is a race between software engineers striving to build 
bigger and better idiot-proof programs, and the Universe trying to produce 
bigger and better idiots. So far, the Universe is winning." -- Rich Cook 

[-- Attachment #2: PCI_ISA_bridge.patch --]
[-- Type: application/octet-stream, Size: 761 bytes --]

--- drivers/pci/quirks.c.orig	Fri Mar  2 17:40:45 2001
+++ drivers/pci/quirks.c	Fri Mar  2 16:10:35 2001
@@ -261,6 +261,7 @@
 	{ PCI_FIXUP_FINAL,	PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C586_0,	quirk_isa_dma_hangs },
 	{ PCI_FIXUP_FINAL,	PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C596,	quirk_isa_dma_hangs },
 	{ PCI_FIXUP_FINAL,      PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82371SB_0,  quirk_isa_dma_hangs },
+	{ PCI_FIXUP_FINAL,      PCI_VENDOR_ID_AL,       PCI_DEVICE_ID_AL_M1533,         quirk_isa_dma_hangs },
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_S3,	PCI_DEVICE_ID_S3_868,		quirk_s3_64M },
 	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_S3,	PCI_DEVICE_ID_S3_968,		quirk_s3_64M },
 	{ PCI_FIXUP_FINAL,	PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82437, 	quirk_triton },