Commit 88055d8f authored Mar 27, 2020 by Cezary Rojewski Committed by Rafael J. Wysocki Mar 30, 2020

ACPICA: Add NHLT table signature

ACPICA commit 422166b656565d180bb3aac712009bdce5e70cdd

NHLT (Non-HDAudio Link Table) provides configuration of audio
endpoints for Intel SST (Smart Sound Technology) DSP products.
Similarly to other ACPI tables, data provided by BIOS may not
describe it correctly, thus overriding is required.

ACPI override mechanism checks for unknown signature before
proceeding. Update known signatures array to support NHLT.

Link: https://github.com/acpica/acpica/commit/422166b6


Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent afb90870

drivers/acpi/tables.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -501,7 +501,7 @@ static const char * const table_sigs[] = {
		ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT,
		ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,
		ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,
		NULL };
		ACPI_SIG_NHLT, NULL };

		#define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)

include/acpi/actbl2.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,7 @@
		#define ACPI_SIG_SBST "SBST" /* Smart Battery Specification Table */
		#define ACPI_SIG_SDEI "SDEI" /* Software Delegated Exception Interface Table */
		#define ACPI_SIG_SDEV "SDEV" /* Secure Devices table */
		#define ACPI_SIG_NHLT "NHLT" /* Non-HDAudio Link Table */

		/*
		* All tables must be byte-packed to match the ACPI specification, since

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