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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-09-04 19:27:43 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-09-04 20:34:15 +0300 |
| commit | f06011ad6225b0f5e4246b5635c5570fa8d5fcdf (patch) | |
| tree | 39e4d0fe7a3b7bfb307d20e1786cd7ee0da367fc /drivers/acpi/acpica/achware.h | |
| parent | 84b43284af40742abeb2cdd6998a4084866ba015 (diff) | |
| download | linux-f06011ad6225b0f5e4246b5635c5570fa8d5fcdf.tar.xz | |
ACPICA: Introduce acpi_hw_gpe_read() and acpi_hw_gpe_write()
Now that GPE blocks are validated at the initialization time, accesses
to GPE registers can be made more straightforward by ommitting all of
the redundant checks in acpi_hw_read() and acpi_hw_write() and only
invoking the OS-provided helper for the given type of access (read or
write) and the address space holding these registers.
For this reason, introduce simplified routines for accessing GPE
registers, acpi_hw_gpe_read() and acpi_hw_gpe_write(), designed in
accordance with the above observation, and modify all of the code
accessing GPE registers to use them instead of acpi_hw_read() and
acpi_hw_write(), respectively.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/achware.h')
| -rw-r--r-- | drivers/acpi/acpica/achware.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index f1f644b58b15..4dba7229f9c1 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -78,6 +78,10 @@ acpi_status acpi_hw_validate_io_block(u64 address, u32 bit_width, u32 count); /* * hwgpe - GPE support */ +acpi_status acpi_hw_gpe_read(u64 *value, struct acpi_generic_address *reg); + +acpi_status acpi_hw_gpe_write(u64 value, struct acpi_generic_address *reg); + u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info); acpi_status |