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| author | Calvin Johnson <[email protected]> | 2021-06-11 10:53:56 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-06-11 20:08:53 +0000 |
| commit | 7ec16433cf1e97cfc823e50e9ee4e2fd3abfc4ee (patch) | |
| tree | 299d86d04da0895a3513fc3305df914bd2db6eea /drivers/acpi/utils.c | |
| parent | of: mdio: Refactor of_mdiobus_register_phy() (diff) | |
| download | kernel-7ec16433cf1e97cfc823e50e9ee4e2fd3abfc4ee.tar.gz kernel-7ec16433cf1e97cfc823e50e9ee4e2fd3abfc4ee.zip | |
ACPI: utils: Introduce acpi_get_local_address()
Introduce a wrapper around the _ADR evaluation.
Signed-off-by: Calvin Johnson <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Ioana Ciornei <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Acked-by: Grant Likely <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/acpi/utils.c')
| -rw-r--r-- | drivers/acpi/utils.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 3b54b8fd7396..e7ddd281afff 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -277,6 +277,20 @@ acpi_evaluate_integer(acpi_handle handle, EXPORT_SYMBOL(acpi_evaluate_integer); +int acpi_get_local_address(acpi_handle handle, u32 *addr) +{ + unsigned long long adr; + acpi_status status; + + status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr); + if (ACPI_FAILURE(status)) + return -ENODATA; + + *addr = (u32)adr; + return 0; +} +EXPORT_SYMBOL(acpi_get_local_address); + acpi_status acpi_evaluate_reference(acpi_handle handle, acpi_string pathname, |