dm: acpi: Add support for the NHLT table
The Intel Non-High-Definition-Audio Link Table (NHLT) table describes the
audio codecs and connections in a system. Various devices can contribute
information to produce the table.
Add core support for this, based on a structure which is built up through
calls to the driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
diff --git a/drivers/core/acpi.c b/drivers/core/acpi.c
index ae69258..cdbc2c5 100644
--- a/drivers/core/acpi.c
+++ b/drivers/core/acpi.c
@@ -31,6 +31,7 @@
METHOD_WRITE_TABLES,
METHOD_FILL_SSDT,
METHOD_INJECT_DSDT,
+ METHOD_SETUP_NHLT,
};
/* Prototype for all methods */
@@ -248,6 +249,8 @@
return aops->fill_ssdt;
case METHOD_INJECT_DSDT:
return aops->inject_dsdt;
+ case METHOD_SETUP_NHLT:
+ return aops->setup_nhlt;
}
}
@@ -334,3 +337,15 @@
return ret;
}
+
+int acpi_setup_nhlt(struct acpi_ctx *ctx, struct nhlt *nhlt)
+{
+ int ret;
+
+ log_debug("Setup NHLT\n");
+ ctx->nhlt = nhlt;
+ ret = acpi_recurse_method(ctx, dm_root(), METHOD_SETUP_NHLT, TYPE_NONE);
+ log_debug("Setup finished, err=%d\n", ret);
+
+ return ret;
+}