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ACPI: fix "Time Problems with 2.6.23-rc1-gf695baf2"

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Enable C3 without bm control only for CST based C3.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Venki Pallipadi
2007-07-31 12:04:31 -07:00
committed by Len Brown
parent d4ac2477fa
commit ed3110efb5
1 changed files with 10 additions and 4 deletions
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12
drivers/acpi/processor_idle.c
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@@ -969,11 +969,17 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
} }
if (pr->flags.bm_check) { if (pr->flags.bm_check) {
/* bus mastering control is necessary */
if (!pr->flags.bm_control) { if (!pr->flags.bm_control) {
/* In this case we enter C3 without bus mastering */ if (pr->flags.has_cst != 1) {
/* bus mastering control is necessary */
ACPI_DEBUG_PRINT((ACPI_DB_INFO, ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"C3 support without bus mastering control\n")); "C3 support requires BM control\n"));
return;
} else {
/* Here we enter C3 without bus mastering */
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"C3 support without BM control\n"));
}
} }
} else { } else {
/* /*