This always has a fixed ACPI name so add it as a driver function.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/core/root.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/core/root.c b/drivers/core/root.c index e85643819e..431c8c7246 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -11,6 +11,7 @@ #include <fdtdec.h> #include <malloc.h> #include <linux/libfdt.h> +#include <dm/acpi.h> #include <dm/device.h> #include <dm/device-internal.h> #include <dm/lists.h> @@ -390,10 +391,22 @@ int dm_init_and_scan(bool pre_reloc_only) return 0; }
+#ifdef CONFIG_ACPIGEN +static int root_acpi_get_name(const struct udevice *dev, char *out_name) +{ + return acpi_return_name(out_name, "\_SB"); +} + +struct acpi_ops root_acpi_ops = { + .get_name = root_acpi_get_name, +}; +#endif + /* This is the root driver - all drivers are children of this */ U_BOOT_DRIVER(root_driver) = { .name = "root_driver", .id = UCLASS_ROOT, + acpi_ops_ptr(&root_acpi_ops) };
/* This is the root uclass */