From: Rafael J. Wysocki <[email protected]> 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]> --- drivers/acpi/scan.c | 9 ++++++++- drivers/acpi/scan.c | 4 +++- include/acpi/acpi_bus.h | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) Index: linux-pm/drivers/acpi/scan.c =================================================================== --- linux-pm.orig/drivers/acpi/scan.c +++ linux-pm/drivers/acpi/scan.c @@ -1797,8 +1797,10 @@ static void acpi_set_pnp_ids(acpi_handle 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++) Index: linux-pm/include/acpi/acpi_bus.h =================================================================== --- linux-pm.orig/include/acpi/acpi_bus.h +++ linux-pm/include/acpi/acpi_bus.h @@ -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 { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
