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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-13 20:10:03 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-20 20:28:48 +0200 |
| commit | 2f6fe93fede802acfe010752db461ccd34745745 (patch) | |
| tree | 1f4dd186389ec16e1d184ffa06b7efd8393ee79a /include/acpi/acpi_bus.h | |
| parent | ACPI: glue: Introduce acpi_dev_has_children() (diff) | |
| download | linux-2f6fe93fede802acfe010752db461ccd34745745.tar.xz linux-2f6fe93fede802acfe010752db461ccd34745745.zip | |
ACPI: glue: Introduce acpi_find_child_by_adr()
Rearrange the ACPI device lookup code used internally by
acpi_find_child_device() so it can avoid extra checks after finding
one object with a matching _ADR and use it for defining
acpi_find_child_by_adr() that will allow the callers to find a given
ACPI device's child matching a given bus address without doing any
other checks in check_one_child().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'include/acpi/acpi_bus.h')
| -rw-r--r-- | include/acpi/acpi_bus.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 0dc1ea0b52f5..597961969ca1 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -622,6 +622,8 @@ static inline int acpi_dma_configure(struct device *dev, } struct acpi_device *acpi_find_child_device(struct acpi_device *parent, u64 address, bool check_children); +struct acpi_device *acpi_find_child_by_adr(struct acpi_device *adev, + acpi_bus_address adr); int acpi_is_root_bridge(acpi_handle); struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); |