diff options
Diffstat (limited to 'drivers/acpi/scan.c')
-rw-r--r-- | drivers/acpi/scan.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 1fcb8678665c..da1416af0c8b 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c | |||
@@ -965,8 +965,10 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) | |||
965 | * D3hot is only valid if _PR3 present. | 965 | * D3hot is only valid if _PR3 present. |
966 | */ | 966 | */ |
967 | if (ps->resources.count || | 967 | if (ps->resources.count || |
968 | (ps->flags.explicit_set && i < ACPI_STATE_D3_HOT)) | 968 | (ps->flags.explicit_set && i < ACPI_STATE_D3_HOT)) { |
969 | ps->flags.valid = 1; | 969 | ps->flags.valid = 1; |
970 | ps->flags.os_accessible = 1; | ||
971 | } | ||
970 | 972 | ||
971 | ps->power = -1; /* Unknown - driver assigned */ | 973 | ps->power = -1; /* Unknown - driver assigned */ |
972 | ps->latency = -1; /* Unknown - driver assigned */ | 974 | ps->latency = -1; /* Unknown - driver assigned */ |
@@ -982,6 +984,11 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) | |||
982 | if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set) | 984 | if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set) |
983 | device->power.states[ACPI_STATE_D3_COLD].flags.explicit_set = 1; | 985 | device->power.states[ACPI_STATE_D3_COLD].flags.explicit_set = 1; |
984 | 986 | ||
987 | /* Presence of _PS3 or _PRx means we can put the device into D3 cold */ | ||
988 | if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set || | ||
989 | device->power.flags.power_resources) | ||
990 | device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1; | ||
991 | |||
985 | acpi_bus_init_power(device); | 992 | acpi_bus_init_power(device); |
986 | 993 | ||
987 | return 0; | 994 | return 0; |