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| author | Erik Kaneda <erik.kaneda@intel.com> | 2021-06-04 14:26:07 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-06-07 14:04:43 +0200 |
| commit | 04da290dd22c806c401913bcc1ed6356599b09c3 (patch) | |
| tree | 35e99c1a07e233a97c8f9bc82ff878382bfabcc8 /drivers/acpi/acpica/exserial.c | |
| parent | d71df85aacd26fe4ac5fbfd383e01e7552ccfcc3 (diff) | |
| download | linux-04da290dd22c806c401913bcc1ed6356599b09c3.tar.gz | |
ACPICA: Add support for PlatformRtMechanism OperationRegion handler
ACPICA commit cdf48b141d7da38e47fe4020310033ddd1971f9e Writing a buffer to a PlatformRtMechanism FieldUnit invokes a bidirectional transaction. The input buffer contains 26 bytes containing 9 bytes of status, a command byte and a 16-byte UUID. This change will will simply pass this incoming buffer to a handler registered by the OS. Link: https://github.com/acpica/acpica/commit/cdf48b14 Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/exserial.c')
| -rw-r--r-- | drivers/acpi/acpica/exserial.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exserial.c b/drivers/acpi/acpica/exserial.c index 8e8d95f7947b..10d68a5f76a3 100644 --- a/drivers/acpi/acpica/exserial.c +++ b/drivers/acpi/acpica/exserial.c @@ -195,6 +195,12 @@ acpi_ex_read_serial_bus(union acpi_operand_object *obj_desc, function = ACPI_READ | (accessor_type << 16); break; + case ACPI_ADR_SPACE_PLATFORM_RT: + + buffer_length = ACPI_PRM_INPUT_BUFFER_SIZE; + function = ACPI_READ; + break; + default: return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } @@ -311,6 +317,12 @@ acpi_ex_write_serial_bus(union acpi_operand_object *source_desc, function = ACPI_WRITE | (accessor_type << 16); break; + case ACPI_ADR_SPACE_PLATFORM_RT: + + buffer_length = ACPI_PRM_INPUT_BUFFER_SIZE; + function = ACPI_WRITE; + break; + default: return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } |