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[ACPI] re-enable platform-specific hotkey drivers by default

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When both platform-specific and generic drivers exist,
enable generic over-ride with "acpi_generic_hotkey".

http://bugzilla.kernel.org/show_bug.cgi?id=4953

Signed-off-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Luming Yu 2005-08-12 00:31:00 -04:00 committed by Len Brown
parent d4ab025b73
commit 30e332f330
3 changed files with 11 additions and 3 deletions
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3
Documentation/acpi-hotkey.txt
View File

@ -33,3 +33,6 @@ The result of the execution of this aml method is
attached to /proc/acpi/hotkey/poll_method, which is dnyamically attached to /proc/acpi/hotkey/poll_method, which is dnyamically
created. Please use command "cat /proc/acpi/hotkey/polling_method" created. Please use command "cat /proc/acpi/hotkey/polling_method"
to retrieve it. to retrieve it.
Note: Use cmdline "acpi_generic_hotkey" to over-ride
loading any platform specific drivers.

5
Documentation/kernel-parameters.txt
View File

@ -159,6 +159,11 @@ running once the system is up.
acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT
acpi_generic_hotkey [HW,ACPI]
Allow consolidated generic hotkey driver to
over-ride platform specific driver.
See also Documentation/acpi-hotkey.txt.
ad1816= [HW,OSS] ad1816= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2> Format: <io>,<irq>,<dma>,<dma2>
See also Documentation/sound/oss/AD1816. See also Documentation/sound/oss/AD1816.

6
drivers/acpi/osl.c
View File

@ -71,7 +71,7 @@ EXPORT_SYMBOL(acpi_in_debugger);
extern char line_buf[80]; extern char line_buf[80];
#endif /*ENABLE_DEBUGGER*/ #endif /*ENABLE_DEBUGGER*/
int acpi_specific_hotkey_enabled; int acpi_specific_hotkey_enabled = TRUE;
EXPORT_SYMBOL(acpi_specific_hotkey_enabled); EXPORT_SYMBOL(acpi_specific_hotkey_enabled);
static unsigned int acpi_irq_irq; static unsigned int acpi_irq_irq;
@ -1158,11 +1158,11 @@ __setup("acpi_wake_gpes_always_on", acpi_wake_gpes_always_on_setup);
int __init int __init
acpi_hotkey_setup(char *str) acpi_hotkey_setup(char *str)
{ {
acpi_specific_hotkey_enabled = TRUE; acpi_specific_hotkey_enabled = FALSE;
return 1; return 1;
} }
__setup("acpi_specific_hotkey", acpi_hotkey_setup); __setup("acpi_generic_hotkey", acpi_hotkey_setup);
/* /*
* max_cstate is defined in the base kernel so modules can * max_cstate is defined in the base kernel so modules can