diff options
| -rw-r--r-- | drivers/acpi/utils.c | 11 | ||||
| -rw-r--r-- | include/acpi/acpi_bus.h | 1 | ||||
| -rw-r--r-- | include/linux/acpi.h | 5 |
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 682edd913b3b..b20774c48c74 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -872,6 +872,17 @@ acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) } EXPORT_SYMBOL(acpi_dev_get_first_match_dev); +/** + * acpi_reduced_hardware - Return if this is an ACPI-reduced-hw machine + * + * Return true when running on an ACPI-reduced-hw machine, false otherwise. + */ +bool acpi_reduced_hardware(void) +{ + return acpi_gbl_reduced_hardware; +} +EXPORT_SYMBOL_GPL(acpi_reduced_hardware); + /* * acpi_backlight= handling, this is done here rather then in video_detect.c * because __setup cannot be used in modules. diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index f28b097c658f..d631cb52283e 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -78,6 +78,7 @@ acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev, bool acpi_dev_found(const char *hid); bool acpi_dev_present(const char *hid, const char *uid, s64 hrv); +bool acpi_reduced_hardware(void); #ifdef CONFIG_ACPI diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 3bdcfc4401b7..e2e6db8313c8 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -748,6 +748,11 @@ acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) return NULL; } +static inline bool acpi_reduced_hardware(void) +{ + return false; +} + static inline void acpi_dev_put(struct acpi_device *adev) {} static inline bool is_acpi_node(const struct fwnode_handle *fwnode) |