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| author | Simon Glass <sjg@chromium.org> | 2020-07-07 21:32:08 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | b4e843341816395ef8a9d48793322617f9a50f9f (patch) | |
| tree | 5d100bfaadb5c083b1206974a0789a648fac83d4 /drivers | |
| parent | f18589576cb87e76c20046b335124a8af6feb6ac (diff) | |
| download | u-boot-b4e843341816395ef8a9d48793322617f9a50f9f.zip u-boot-b4e843341816395ef8a9d48793322617f9a50f9f.tar.gz u-boot-b4e843341816395ef8a9d48793322617f9a50f9f.tar.bz2 | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/core/acpi.c | 15 |
1 files changed, 15 insertions, 0 deletions
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 @@ enum method_t { METHOD_WRITE_TABLES, METHOD_FILL_SSDT, METHOD_INJECT_DSDT, + METHOD_SETUP_NHLT, }; /* Prototype for all methods */ @@ -248,6 +249,8 @@ acpi_method acpi_get_method(struct udevice *dev, enum method_t method) return aops->fill_ssdt; case METHOD_INJECT_DSDT: return aops->inject_dsdt; + case METHOD_SETUP_NHLT: + return aops->setup_nhlt; } } @@ -334,3 +337,15 @@ int acpi_write_dev_tables(struct acpi_ctx *ctx) 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; +} |