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ACPI / scan: introduce platform_id device PNP type flag

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Only certain types of ACPI device objects can be enumerated as
platform devices, so in order to distinguish them from the others
introduce a new ACPI device PNP type flag, platform_id, and set it
for devices with a valid _HID to start with.

This change is based on a Zhang Rui's prototype.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2014-05-30 04:26:18 +02:00
commit 549e68455c
2 changed files with 5 additions and 2 deletions
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3
include/acpi/acpi_bus.h
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@ -233,7 +233,8 @@ struct acpi_hardware_id {
struct acpi_pnp_type {
u32 hardware_id:1;
u32 bus_address:1;
u32 reserved:30;
u32 platform_id:1;
u32 reserved:29;
};
struct acpi_device_pnp {