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acpi: Support generation of a device

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Allow writing an ACPI device to the generated ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
[bmeng: Fix build failures on Sandbox]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2020-07-07 21:32:14 -06:00
committed by Bin Meng
parent 70303d2480
commit 91c2f9c32e
3 changed files with 43 additions and 0 deletions
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7
lib/acpi/acpigen.c
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@@ -291,6 +291,13 @@ void acpigen_write_method_serialized(struct acpi_ctx *ctx, const char *name,
ACPI_METHOD_SERIALIZED_MASK);
}
void acpigen_write_device(struct acpi_ctx *ctx, const char *name)
{
acpigen_emit_ext_op(ctx, DEVICE_OP);
acpigen_write_len_f(ctx);
acpigen_emit_namestring(ctx, name);
}
void acpigen_write_sta(struct acpi_ctx *ctx, uint status)
{
/* Method (_STA, 0, NotSerialized) { Return (status) } */