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| author | Stefan Binding <sbinding@opensource.cirrus.com> | 2022-07-07 18:10:36 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-07-15 14:35:09 +0300 |
| commit | 93064e15c8a3a8394319a11b8037666e4b7d653d (patch) | |
| tree | d79de005f58dc99cbc565c421178b865a1ddb1b4 /include/linux/acpi.h | |
| parent | 7fb72b7bf167a8047204d30e0e8affe6023363d9 (diff) | |
| download | linux-93064e15c8a3a8394319a11b8037666e4b7d653d.tar.xz | |
ACPI: utils: Add api to read _SUB from ACPI
Add a wrapper function to read the _SUB string from ACPI.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220707151037.3901050-2-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 4f82a5bc6d98..968a187f14f0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -762,6 +762,7 @@ static inline u64 acpi_arch_get_root_pointer(void) #endif int acpi_get_local_address(acpi_handle handle, u32 *addr); +const char *acpi_get_subsystem_id(acpi_handle handle); #else /* !CONFIG_ACPI */ @@ -1023,6 +1024,11 @@ static inline int acpi_get_local_address(acpi_handle handle, u32 *addr) return -ENODEV; } +static inline const char *acpi_get_subsystem_id(acpi_handle handle) +{ + return ERR_PTR(-ENODEV); +} + static inline int acpi_register_wakeup_handler(int wake_irq, bool (*wakeup)(void *context), void *context) { |