diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/ec.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 3fcb9132881e..2c790b5badb3 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -120,6 +120,7 @@ static struct acpi_ec { static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */ static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */ +static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ /* -------------------------------------------------------------------------- Transaction Management @@ -900,6 +901,13 @@ static const struct acpi_device_id ec_device_ids[] = { {"", 0}, }; +/* Some BIOS do not survive early DSDT scan, skip it */ +static int ec_skip_dsdt_scan(const struct dmi_system_id *id) +{ + EC_FLAGS_SKIP_DSDT_SCAN = 1; + return 0; +} + /* ASUStek often supplies us with broken ECDT, validate it */ static int ec_validate_ecdt(const struct dmi_system_id *id) { @@ -917,6 +925,10 @@ static int ec_flag_msi(const struct dmi_system_id *id) static struct dmi_system_id __initdata ec_dmi_table[] = { { + ec_skip_dsdt_scan, "Compal JFL92", { + DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), + DMI_MATCH(DMI_BOARD_NAME, "JFL92") }, NULL}, + { ec_flag_msi, "MSI hardware", { DMI_MATCH(DMI_BIOS_VENDOR, "Micro-Star"), DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-Star") }, NULL}, @@ -959,6 +971,9 @@ int __init acpi_ec_ecdt_probe(void) /* fall through */ } + if (EC_FLAGS_SKIP_DSDT_SCAN) + return -ENODEV; + /* This workaround is needed only on some broken machines, * which require early EC, but fail to provide ECDT */ printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n"); |