From patchwork Mon Jan 27 05:05:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 240190 List-Id: U-Boot discussion From: sjg at chromium.org (Simon Glass) Date: Sun, 26 Jan 2020 22:05:47 -0700 Subject: [PATCH 040/108] dm: core: Add an ACPI name for the root node In-Reply-To: <20200127050655.170614-1-sjg@chromium.org> References: <20200127050655.170614-1-sjg@chromium.org> Message-ID: <20200126220508.40.I3fc26919ac73d55741c6ee8098cc0d6df70bb23c@changeid> This always has a fixed ACPI name so add it as a driver function. Signed-off-by: Simon Glass --- 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 #include #include +#include #include #include #include @@ -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 */