From c0af41757f406651cdd32de3e915753746c2948a Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Mon, 4 Mar 2013 21:30:42 +0000 Subject: [PATCH] ACPI: Update PNPID set/free interfaces This patch introduces acpi_set_pnp_ids() and acpi_free_pnp_ids(), which are updated from acpi_device_set_id() and acpi_free_ids(), to setup and free acpi_device_pnp for a given acpi_handle. They can be called without acpi_device. Signed-off-by: Toshi Kani Signed-off-by: Rafael J. Wysocki --- drivers/acpi/internal.h | 2 +- drivers/acpi/power.c | 2 +- drivers/acpi/scan.c | 85 +++++++++++++++++++++++++------------------------ 3 files changed, 45 insertions(+), 44 deletions(-) diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 7215821..7f094ad 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -71,7 +71,7 @@ int acpi_device_add(struct acpi_device *device, void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, int type, unsigned long long sta); void acpi_device_add_finalize(struct acpi_device *device); -void acpi_free_ids(struct acpi_device *device); +void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); /* -------------------------------------------------------------------------- Power Resource diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 34f5ef1..0481b1b 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -824,7 +824,7 @@ static void acpi_release_power_resource(struct device *dev) list_del(&resource->list_node); mutex_unlock(&power_resource_list_lock); - acpi_free_ids(device); + acpi_free_pnp_ids(&device->pnp); kfree(resource); } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index f9c698d..e9a71ed 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -662,17 +662,6 @@ int acpi_match_device_ids(struct acpi_device *device, } EXPORT_SYMBOL(acpi_match_device_ids); -void acpi_free_ids(struct acpi_device *device) -{ - struct acpi_hardware_id *id, *tmp; - - list_for_each_entry_safe(id, tmp, &device->pnp.ids, list) { - kfree(id->id); - kfree(id); - } - kfree(device->pnp.unique_id); -} - static void acpi_free_power_resources_lists(struct acpi_device *device) { int i; @@ -693,7 +682,7 @@ static void acpi_device_release(struct device *dev) { struct acpi_device *acpi_dev = to_acpi_device(dev); - acpi_free_ids(acpi_dev); + acpi_free_pnp_ids(&acpi_dev->pnp); acpi_free_power_resources_lists(acpi_dev); kfree(acpi_dev); } @@ -1513,39 +1502,41 @@ out: return result; } -static void acpi_device_set_id(struct acpi_device *device) +static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, + int device_type) { acpi_status status; struct acpi_device_info *info; struct acpi_pnp_device_id_list *cid_list; int i; - switch (device->device_type) { + switch (device_type) { case ACPI_BUS_TYPE_DEVICE: - if (ACPI_IS_ROOT_DEVICE(device)) { - acpi_add_id(&device->pnp, ACPI_SYSTEM_HID); + if (handle == ACPI_ROOT_OBJECT) { + acpi_add_id(pnp, ACPI_SYSTEM_HID); break; } - status = acpi_get_object_info(device->handle, &info); + status = acpi_get_object_info(handle, &info); if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__); + pr_err(PREFIX "%s: Error reading device info\n", + __func__); return; } if (info->valid & ACPI_VALID_HID) - acpi_add_id(&device->pnp, info->hardware_id.string); + acpi_add_id(pnp, info->hardware_id.string); if (info->valid & ACPI_VALID_CID) { cid_list = &info->compatible_id_list; for (i = 0; i < cid_list->count; i++) - acpi_add_id(&device->pnp, cid_list->ids[i].string); + acpi_add_id(pnp, cid_list->ids[i].string); } if (info->valid & ACPI_VALID_ADR) { - device->pnp.bus_address = info->address; - device->pnp.type.bus_address = 1; + pnp->bus_address = info->address; + pnp->type.bus_address = 1; } if (info->valid & ACPI_VALID_UID) - device->pnp.unique_id = kstrdup(info->unique_id.string, + pnp->unique_id = kstrdup(info->unique_id.string, GFP_KERNEL); kfree(info); @@ -1554,40 +1545,50 @@ static void acpi_device_set_id(struct acpi_device *device) * Some devices don't reliably have _HIDs & _CIDs, so add * synthetic HIDs to make sure drivers can find them. */ - if (acpi_is_video_device(device->handle)) - acpi_add_id(&device->pnp, ACPI_VIDEO_HID); - else if (ACPI_SUCCESS(acpi_bay_match(device->handle))) - acpi_add_id(&device->pnp, ACPI_BAY_HID); - else if (ACPI_SUCCESS(acpi_dock_match(device->handle))) - acpi_add_id(&device->pnp, ACPI_DOCK_HID); - else if (!acpi_ibm_smbus_match(device->handle)) - acpi_add_id(&device->pnp, ACPI_SMBUS_IBM_HID); - else if (list_empty(&device->pnp.ids) && - ACPI_IS_ROOT_DEVICE(device->parent)) { - acpi_add_id(&device->pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ - strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); - strcpy(device->pnp.device_class, ACPI_BUS_CLASS); + if (acpi_is_video_device(handle)) + acpi_add_id(pnp, ACPI_VIDEO_HID); + else if (ACPI_SUCCESS(acpi_bay_match(handle))) + acpi_add_id(pnp, ACPI_BAY_HID); + else if (ACPI_SUCCESS(acpi_dock_match(handle))) + acpi_add_id(pnp, ACPI_DOCK_HID); + else if (!acpi_ibm_smbus_match(handle)) + acpi_add_id(pnp, ACPI_SMBUS_IBM_HID); + else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) { + acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ + strcpy(pnp->device_name, ACPI_BUS_DEVICE_NAME); + strcpy(pnp->device_class, ACPI_BUS_CLASS); } break; case ACPI_BUS_TYPE_POWER: - acpi_add_id(&device->pnp, ACPI_POWER_HID); + acpi_add_id(pnp, ACPI_POWER_HID); break; case ACPI_BUS_TYPE_PROCESSOR: - acpi_add_id(&device->pnp, ACPI_PROCESSOR_OBJECT_HID); + acpi_add_id(pnp, ACPI_PROCESSOR_OBJECT_HID); break; case ACPI_BUS_TYPE_THERMAL: - acpi_add_id(&device->pnp, ACPI_THERMAL_HID); + acpi_add_id(pnp, ACPI_THERMAL_HID); break; case ACPI_BUS_TYPE_POWER_BUTTON: - acpi_add_id(&device->pnp, ACPI_BUTTON_HID_POWERF); + acpi_add_id(pnp, ACPI_BUTTON_HID_POWERF); break; case ACPI_BUS_TYPE_SLEEP_BUTTON: - acpi_add_id(&device->pnp, ACPI_BUTTON_HID_SLEEPF); + acpi_add_id(pnp, ACPI_BUTTON_HID_SLEEPF); break; } } +void acpi_free_pnp_ids(struct acpi_device_pnp *pnp) +{ + struct acpi_hardware_id *id, *tmp; + + list_for_each_entry_safe(id, tmp, &pnp->ids, list) { + kfree(id->id); + kfree(id); + } + kfree(pnp->unique_id); +} + void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, int type, unsigned long long sta) { @@ -1597,7 +1598,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, device->parent = acpi_bus_get_parent(handle); STRUCT_TO_INT(device->status) = sta; acpi_device_get_busid(device); - acpi_device_set_id(device); + acpi_set_pnp_ids(handle, &device->pnp, type); acpi_bus_get_flags(device); device->flags.match_driver = false; device_initialize(&device->dev); -- 2.7.4