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ACPI: Allow drivers to match using Device Tree compatible property

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We have lots of existing Device Tree enabled drivers and allocating
separate _HID for each is not feasible. Instead we allocate special _HID
"PRP0001" that means that the match should be done using Device Tree
compatible property using driver's .of_match_table instead if the driver
is missing .acpi_match_table.

If there is a need to distinguish from where the device is enumerated
(DT/ACPI) driver can check dev->of_node or ACPI_COMPATION(dev).

Signed-off-by: Mika Westerberg <[email protected]>
Acked-by: Grant Likely <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Mika Westerberg 2014-10-21 13:33:56 +02:00 • committed by Rafael J. Wysocki
commit 733e625139
4 changed files with 137 additions and 17 deletions
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1
include/acpi/acpi_bus.h
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@ -341,6 +341,7 @@ struct acpi_device_physical_node {
struct acpi_device_data {
const union acpi_object *pointer;
const union acpi_object *properties;
const union acpi_object *of_compatible;
};
/* Device */