This always has a fixed ACPI name so add it as a driver function. Signed-off-by: Simon Glass <s...@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wall...@br-automation.com> ---
Changes in v2: None Changes in v1: - Capitalise ACPI_OPS_PTR drivers/core/root.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/core/root.c b/drivers/core/root.c index 7d257ea887..14ae8a953b 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -12,6 +12,7 @@ #include <log.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> @@ -373,10 +374,22 @@ 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_copy_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 */ -- 2.26.2.645.ge9eca65c58-goog