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acpi/device: Add a helper function to write SoundWire _ADR

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This change adds a help function to write a SoundWire ACPI address
object that conforms to the SoundWire DisCo Specification Version 1.0

The SoundWire address structure is defined in include/device/soundwire.h
and provides the properties that are used to form the _ADR object.

BUG=b:146482091

Signed-off-by: Duncan Laurie <dlaurie@google.com>
Change-Id: I6efbf52ce20b53f96d69efe2bf004b98dbe06552
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40885
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Duncan Laurie
2020-04-29 12:13:14 -07:00
committed by Duncan Laurie
parent e8189b7426
commit 08a942fd32
2 changed files with 30 additions and 0 deletions
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2
src/include/acpi/acpigen.h
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@@ -374,6 +374,8 @@ void acpigen_write_pld(const struct acpi_pld *pld);
void acpigen_write_ADR(uint64_t adr);
void acpigen_write_ADR_pci_devfn(pci_devfn_t devfn);
void acpigen_write_ADR_pci_device(const struct device *dev);
struct soundwire_address;
void acpigen_write_ADR_soundwire_device(const struct soundwire_address *address);
/*
* Generate ACPI AML code for _DSM method.
* This function takes as input uuid for the device, set of callbacks and