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| author | Simon Glass <sjg@chromium.org> | 2020-07-07 13:12:06 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | 0f7b111f70087f60e84f936fbe0c2a0a243a4fec (patch) | |
| tree | 7f0e2a35c81f35ad1642971dcea95900437c695b /doc | |
| parent | 64ba6f43ef83e3a87abf5705d57ffc9109b5aa55 (diff) | |
| download | u-boot-0f7b111f70087f60e84f936fbe0c2a0a243a4fec.tar.gz | |
acpi: Support ordering SSDT data by device
Add a /chosen property to control the order in which the data appears
in the SSDT. This allows matching up U-Boot's output from a dump of the
known-good data obtained from within Linux.
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>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/chosen.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/chosen.txt b/doc/device-tree-bindings/chosen.txt index 395c9501e3..d4dfc05847 100644 --- a/doc/device-tree-bindings/chosen.txt +++ b/doc/device-tree-bindings/chosen.txt @@ -134,3 +134,12 @@ Example phandlepart = <&mmc 1>; }; }; + +u-boot,acpi-ssdt-order +---------------------- + +This provides the ordering to use when writing device data to the ACPI SSDT +(Secondary System Descriptor Table). Each cell is a phandle pointer to a device +node to add. The ACPI information is written in this order. + +If the ordering does not include all nodes, an error is generated. |