diff options
Diffstat (limited to 'drivers/acpi/processor_idle.c')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 53ae679c00f0..0ea5e677f00e 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1201,6 +1201,11 @@ static int flatten_lpi_states(struct acpi_processor *pr, return 0; } +int __weak acpi_processor_ffh_lpi_probe(unsigned int cpu) +{ + return -EOPNOTSUPP; +} + static int acpi_processor_get_lpi_info(struct acpi_processor *pr) { int ret, i; @@ -1209,6 +1214,11 @@ static int acpi_processor_get_lpi_info(struct acpi_processor *pr) struct acpi_device *d = NULL; struct acpi_lpi_states_array info[2], *tmp, *prev, *curr; + /* make sure our architecture has support */ + ret = acpi_processor_ffh_lpi_probe(pr->id); + if (ret == -EOPNOTSUPP) + return ret; + if (!osc_pc_lpi_support_confirmed) return -EOPNOTSUPP; @@ -1260,11 +1270,6 @@ static int acpi_processor_get_lpi_info(struct acpi_processor *pr) return 0; } -int __weak acpi_processor_ffh_lpi_probe(unsigned int cpu) -{ - return -ENODEV; -} - int __weak acpi_processor_ffh_lpi_enter(struct acpi_lpi_state *lpi) { return -ENODEV; |