From b5183172f031603c5d861c34389f88a3c493cfd7 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 7 Jul 2020 13:12:03 -0600 Subject: acpi: Add support for SSDT generation Some devices need to generate code for the Secondary System Descriptor Table (SSDT). Add a method to handle this. Signed-off-by: Simon Glass Reviewed-by: Wolfgang Wallner Reviewed-by: Bin Meng --- drivers/core/acpi.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers') diff --git a/drivers/core/acpi.c b/drivers/core/acpi.c index 8ae6157..4497b5c 100644 --- a/drivers/core/acpi.c +++ b/drivers/core/acpi.c @@ -18,6 +18,7 @@ /* Type of method to call */ enum method_t { METHOD_WRITE_TABLES, + METHOD_FILL_SSDT, }; /* Prototype for all methods */ @@ -51,6 +52,8 @@ acpi_method acpi_get_method(struct udevice *dev, enum method_t method) switch (method) { case METHOD_WRITE_TABLES: return aops->write_tables; + case METHOD_FILL_SSDT: + return aops->fill_ssdt; } } @@ -84,6 +87,17 @@ int acpi_recurse_method(struct acpi_ctx *ctx, struct udevice *parent, return 0; } +int acpi_fill_ssdt(struct acpi_ctx *ctx) +{ + int ret; + + log_debug("Writing SSDT tables\n"); + ret = acpi_recurse_method(ctx, dm_root(), METHOD_FILL_SSDT); + log_debug("Writing SSDT finished, err=%d\n", ret); + + return ret; +} + int acpi_write_dev_tables(struct acpi_ctx *ctx) { int ret; -- cgit v1.1