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Commit 549e6845 authored May 30, 2014 by Rafael J. Wysocki

ACPI / scan: introduce platform_id device PNP type flag



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 <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

parent 01cd4bac

drivers/acpi/scan.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1797,8 +1797,10 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
		return;
		}

		if (info->valid & ACPI_VALID_HID)
		if (info->valid & ACPI_VALID_HID) {
		acpi_add_id(pnp, info->hardware_id.string);
		pnp->type.platform_id = 1;
		}
		if (info->valid & ACPI_VALID_CID) {
		cid_list = &info->compatible_id_list;
		for (i = 0; i < cid_list->count; i++)

include/acpi/acpi_bus.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -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 {