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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-29 18:48:02 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-29 18:48:02 +0400 |
| commit | 129961ecaf21c9ee899ad9067d917c1aa172fb7a (patch) | |
| tree | 49eafdcf4d6ac490ecdd92c36c285817872eaf34 /drivers/acpi/acpica/evxfevnt.c | |
| parent | 392c57a2ec811db37ae45adc513704cf92ba3e69 (diff) | |
| parent | cccf59abea4e1c36322e365d6e61ff7de1f3ee07 (diff) | |
| download | linux-129961ecaf21c9ee899ad9067d917c1aa172fb7a.tar.xz | |
Merge branch 'wells/lpc32xx-arch_v2' of git://git.lpclinux.com/linux-2.6-lpc into devel-stable
Diffstat (limited to 'drivers/acpi/acpica/evxfevnt.c')
| -rw-r--r-- | drivers/acpi/acpica/evxfevnt.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index d97b8dce1668..18b3f1468b7d 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -70,6 +70,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, acpi_status acpi_enable(void) { acpi_status status; + int retry; ACPI_FUNCTION_TRACE(acpi_enable); @@ -98,16 +99,18 @@ acpi_status acpi_enable(void) /* Sanity check that transition succeeded */ - if (acpi_hw_get_mode() != ACPI_SYS_MODE_ACPI) { - ACPI_ERROR((AE_INFO, - "Hardware did not enter ACPI mode")); - return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); + for (retry = 0; retry < 30000; ++retry) { + if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { + if (retry != 0) + ACPI_WARNING((AE_INFO, + "Platform took > %d00 usec to enter ACPI mode", retry)); + return_ACPI_STATUS(AE_OK); + } + acpi_os_stall(100); /* 100 usec */ } - ACPI_DEBUG_PRINT((ACPI_DB_INIT, - "Transition to ACPI mode successful\n")); - - return_ACPI_STATUS(AE_OK); + ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode")); + return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } ACPI_EXPORT_SYMBOL(acpi_enable) |