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nexedi
linux
Commits
a438ced7
Commit
a438ced7
authored
Apr 02, 2002
by
Dave Jones
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[PATCH] DMI entries for HP Pavillion laptops.
These things have USB IRQ routing problems we can work around..
parent
6d956df7
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2 changed files
with
34 additions
and
1 deletion
+34
-1
arch/i386/kernel/dmi_scan.c
arch/i386/kernel/dmi_scan.c
+24
-1
arch/i386/kernel/pci-irq.c
arch/i386/kernel/pci-irq.c
+10
-0
No files found.
arch/i386/kernel/dmi_scan.c
View file @
a438ced7
...
...
@@ -295,6 +295,22 @@ static __init int apm_is_horked(struct dmi_blacklist *d)
return
0
;
}
/*
* Work around broken HP Pavilion Notebooks which assign USB to
* IRQ 9 even though it is actually wired to IRQ 11
*/
static
__init
int
fix_broken_hp_bios_irq9
(
struct
dmi_blacklist
*
d
)
{
#ifdef CONFIG_PCI
extern
int
broken_hp_bios_irq9
;
if
(
broken_hp_bios_irq9
==
0
)
{
broken_hp_bios_irq9
=
1
;
printk
(
KERN_INFO
"%s detected - fixing broken IRQ routing
\n
"
,
d
->
ident
);
}
#endif
return
0
;
}
/*
* Check for clue free BIOS implementations who use
...
...
@@ -730,7 +746,14 @@ static __initdata struct dmi_blacklist dmi_blacklist[]={
NO_MATCH
,
NO_MATCH
}
},
{
fix_broken_hp_bios_irq9
,
"HP Pavilion N5400 Series Laptop"
,
{
MATCH
(
DMI_SYS_VENDOR
,
"Hewlett-Packard"
),
MATCH
(
DMI_BIOS_VERSION
,
"GE.M1.03"
),
MATCH
(
DMI_PRODUCT_VERSION
,
"HP Pavilion Notebook Model GE"
),
MATCH
(
DMI_BOARD_VERSION
,
"OmniBook N32N-736"
)
}
},
/*
* Generic per vendor APM settings
*/
...
...
arch/i386/kernel/pci-irq.c
View file @
a438ced7
...
...
@@ -23,6 +23,7 @@
#define PIRQ_VERSION 0x0100
int
pci_use_acpi_routing
=
0
;
int
broken_hp_bios_irq9
;
static
struct
irq_routing_table
*
pirq_table
;
...
...
@@ -614,6 +615,15 @@ static int pirq_lookup_irq(struct pci_dev *dev, u8 pin, int assign)
DBG
(
" -> PIRQ %02x, mask %04x, excl %04x"
,
pirq
,
mask
,
pirq_table
->
exclusive_irqs
);
mask
&=
pcibios_irq_mask
;
/* Work around broken HP Pavilion Notebooks which assign USB to
IRQ 9 even though it is actually wired to IRQ 11 */
if
(
broken_hp_bios_irq9
&&
pirq
==
0x59
&&
dev
->
irq
==
9
)
{
dev
->
irq
=
11
;
pci_write_config_byte
(
dev
,
PCI_INTERRUPT_LINE
,
11
);
r
->
set
(
pirq_router_dev
,
dev
,
pirq
,
11
);
}
/*
* Find the best IRQ to assign: use the one
* reported by the device if possible.
...
...
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