This always has a fixed ACPI name so add it as a driver function.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Wolfgang Wallner wolfgang.wallner@br-automation.com Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
(no changes since v1)
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 0de5d7c70d..0726be6b79 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> @@ -377,10 +378,22 @@ 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 */