From: Simon Glass <sjg@chromium.org> Date: Tue, 7 Jul 2020 19:11:38 +0000 (-0600) Subject: dm: core: Add an ACPI name for the root node X-Git-Tag: v2025.01-rc5-pxa1908~2304^2~77 X-Git-Url: http://git.dujemihanovic.xyz/%22/icons/right.gif/static/git-logo.png?a=commitdiff_plain;h=4b724a13770c39ee3806dd30d349b6f8d03cfbc6;p=u-boot.git dm: core: Add an ACPI name for the root node 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> --- 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 */