From 549e68455c6706796d9d244364dfbf5c575bd1a5 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 30 May 2014 04:26:18 +0200 Subject: [PATCH] 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 Reviewed-by: Mika Westerberg --- drivers/acpi/scan.c | 4 +++- include/acpi/acpi_bus.h | 3 ++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 19d524c..ebbd23c 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -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++) diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index c241c75..2147746 100644 --- a/include/acpi/acpi_bus.h +++ b/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 { -- 2.7.4