diff options
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index d9fa730416f1..c2ab2783303f 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -112,6 +112,17 @@ int acpi_bus_get_status(struct acpi_device *device) if (ACPI_FAILURE(status)) return -ENODEV; + if (!device->status.present && device->status.enabled) { + pr_info(FW_BUG "Device [%s] status [%08x]: not present and enabled\n", + device->pnp.bus_id, (u32)sta); + device->status.enabled = 0; + /* + * The status is clearly invalid, so clear the functional bit as + * well to avoid attempting to use the device. + */ + device->status.functional = 0; + } + acpi_set_device_status(device, sta); if (device->status.functional && !device->status.present) { @@ -316,9 +327,16 @@ static void acpi_bus_osc_negotiate_platform_control(void) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT; if (IS_ENABLED(CONFIG_ACPI_PROCESSOR)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; + if (IS_ENABLED(CONFIG_ACPI_THERMAL)) + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_FAST_THERMAL_SAMPLING_SUPPORT; + if (IS_ENABLED(CONFIG_ACPI_BATTERY)) + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_BATTERY_CHARGE_LIMITING_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_OVER_16_PSTATES_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GED_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_IRQ_RESOURCE_SOURCE_SUPPORT; if (IS_ENABLED(CONFIG_ACPI_PRMT)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PRM_SUPPORT; if (IS_ENABLED(CONFIG_ACPI_FFH)) @@ -990,25 +1008,26 @@ EXPORT_SYMBOL_GPL(acpi_driver_match_device); -------------------------------------------------------------------------- */ /** - * acpi_bus_register_driver - register a driver with the ACPI bus + * __acpi_bus_register_driver - register a driver with the ACPI bus * @driver: driver being registered + * @owner: owning module/driver * * Registers a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and binds. Returns zero for * success or a negative error status for failure. */ -int acpi_bus_register_driver(struct acpi_driver *driver) +int __acpi_bus_register_driver(struct acpi_driver *driver, struct module *owner) { if (acpi_disabled) return -ENODEV; driver->drv.name = driver->name; driver->drv.bus = &acpi_bus_type; - driver->drv.owner = driver->owner; + driver->drv.owner = owner; return driver_register(&driver->drv); } -EXPORT_SYMBOL(acpi_bus_register_driver); +EXPORT_SYMBOL(__acpi_bus_register_driver); /** * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus @@ -1028,10 +1047,10 @@ EXPORT_SYMBOL(acpi_bus_unregister_driver); ACPI Bus operations -------------------------------------------------------------------------- */ -static int acpi_bus_match(struct device *dev, struct device_driver *drv) +static int acpi_bus_match(struct device *dev, const struct device_driver *drv) { struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_driver *acpi_drv = to_acpi_driver(drv); + const struct acpi_driver *acpi_drv = to_acpi_driver(drv); return acpi_dev->flags.match_driver && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); @@ -1184,6 +1203,9 @@ static int __init acpi_bus_init_irq(void) case ACPI_IRQ_MODEL_LPIC: message = "LPIC"; break; + case ACPI_IRQ_MODEL_RINTC: + message = "RINTC"; + break; default: pr_info("Unknown interrupt routing model\n"); return -ENODEV; @@ -1412,6 +1434,8 @@ static int __init acpi_bus_init(void) struct kobject *acpi_kobj; EXPORT_SYMBOL_GPL(acpi_kobj); +void __weak __init acpi_arch_init(void) { } + static int __init acpi_init(void) { int result; @@ -1422,8 +1446,10 @@ static int __init acpi_init(void) } acpi_kobj = kobject_create_and_add("acpi", firmware_kobj); - if (!acpi_kobj) - pr_debug("%s: kset create error\n", __func__); + if (!acpi_kobj) { + pr_err("Failed to register kobject\n"); + return -ENOMEM; + } init_prmt(); acpi_init_pcc(); @@ -1439,7 +1465,7 @@ static int __init acpi_init(void) acpi_viot_early_init(); acpi_hest_init(); acpi_ghes_init(); - acpi_arm_init(); + acpi_arch_init(); acpi_scan_init(); acpi_ec_init(); acpi_debugfs_init(); |