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| author | Daniel Scally <djrscally@gmail.com> | 2021-06-04 00:40:03 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-06-07 16:48:05 +0200 |
| commit | b83e2b306736cb0d108df791fd4ee39f6d52184f (patch) | |
| tree | e00bcf6b0796c06391c931e7452e1adaafa4a4df /include/acpi | |
| parent | ACPI: scan: Extend acpi_walk_dep_device_list() (diff) | |
| download | linux-b83e2b306736cb0d108df791fd4ee39f6d52184f.tar.xz linux-b83e2b306736cb0d108df791fd4ee39f6d52184f.zip | |
ACPI: scan: Add function to fetch dependent of ACPI device
In some ACPI tables we encounter, devices use the _DEP method to assert
a dependence on other ACPI devices as opposed to the OpRegions that the
specification intends.
We need to be able to find those devices "from" the dependee, so add
a callback and a wrapper to walk over the acpi_dep_list and return
the dependent ACPI device.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpi_bus.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 0b2c4f170f4d..4bed30e61c5b 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -692,6 +692,7 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev) bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2); void acpi_dev_clear_dependencies(struct acpi_device *supplier); +struct acpi_device *acpi_dev_get_first_consumer_dev(struct acpi_device *supplier); struct acpi_device * acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv); struct acpi_device * |