diff options
| -rw-r--r-- | drivers/acpi/bus.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_acpi.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atpx_handler.c | 16 | ||||
| -rw-r--r-- | include/acpi/acpi_bus.h | 4 |
4 files changed, 5 insertions, 41 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 8581f5b84f48..8b67bd0f6bb5 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -177,16 +177,6 @@ void acpi_bus_detach_private_data(acpi_handle handle) } EXPORT_SYMBOL_GPL(acpi_bus_detach_private_data); -void acpi_bus_no_hotplug(acpi_handle handle) -{ - struct acpi_device *adev = NULL; - - acpi_bus_get_device(handle, &adev); - if (adev) - adev->flags.no_hotplug = true; -} -EXPORT_SYMBOL_GPL(acpi_bus_no_hotplug); - static void acpi_print_osc_error(acpi_handle handle, struct acpi_osc_context *context, char *error) { diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 279206997e5c..622424692b3b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -46,7 +46,6 @@ static struct nouveau_dsm_priv { bool dsm_detected; bool optimus_detected; acpi_handle dhandle; - acpi_handle other_handle; acpi_handle rom_handle; } nouveau_dsm_priv; @@ -222,10 +221,9 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev) if (!dhandle) return false; - if (!acpi_has_method(dhandle, "_DSM")) { - nouveau_dsm_priv.other_handle = dhandle; + if (!acpi_has_method(dhandle, "_DSM")) return false; - } + if (acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102, 1 << NOUVEAU_DSM_POWER)) retval |= NOUVEAU_DSM_HAS_MUX; @@ -301,16 +299,6 @@ static bool nouveau_dsm_detect(void) printk(KERN_INFO "VGA switcheroo: detected DSM switching method %s handle\n", acpi_method_name); nouveau_dsm_priv.dsm_detected = true; - /* - * On some systems hotplug events are generated for the device - * being switched off when _DSM is executed. They cause ACPI - * hotplug to trigger and attempt to remove the device from - * the system, which causes it to break down. Prevent that from - * happening by setting the no_hotplug flag for the involved - * ACPI device objects. - */ - acpi_bus_no_hotplug(nouveau_dsm_priv.dhandle); - acpi_bus_no_hotplug(nouveau_dsm_priv.other_handle); ret = true; } diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index a9fb0d016d38..8bc7d0bbd3c8 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -33,7 +33,6 @@ static struct radeon_atpx_priv { bool atpx_detected; /* handle for device - and atpx */ acpi_handle dhandle; - acpi_handle other_handle; struct radeon_atpx atpx; } radeon_atpx_priv; @@ -453,10 +452,9 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) return false; status = acpi_get_handle(dhandle, "ATPX", &atpx_handle); - if (ACPI_FAILURE(status)) { - radeon_atpx_priv.other_handle = dhandle; + if (ACPI_FAILURE(status)) return false; - } + radeon_atpx_priv.dhandle = dhandle; radeon_atpx_priv.atpx.handle = atpx_handle; return true; @@ -540,16 +538,6 @@ static bool radeon_atpx_detect(void) printk(KERN_INFO "VGA switcheroo: detected switching method %s handle\n", acpi_method_name); radeon_atpx_priv.atpx_detected = true; - /* - * On some systems hotplug events are generated for the device - * being switched off when ATPX is executed. They cause ACPI - * hotplug to trigger and attempt to remove the device from - * the system, which causes it to break down. Prevent that from - * happening by setting the no_hotplug flag for the involved - * ACPI device objects. - */ - acpi_bus_no_hotplug(radeon_atpx_priv.dhandle); - acpi_bus_no_hotplug(radeon_atpx_priv.other_handle); return true; } return false; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index bcfd808b1098..95c506961a13 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -204,10 +204,9 @@ struct acpi_device_flags { u32 match_driver:1; u32 initialized:1; u32 visited:1; - u32 no_hotplug:1; u32 hotplug_notify:1; u32 is_dock_station:1; - u32 reserved:22; + u32 reserved:23; }; /* File System */ @@ -412,7 +411,6 @@ void acpi_bus_private_data_handler(acpi_handle, void *); int acpi_bus_get_private_data(acpi_handle, void **); int acpi_bus_attach_private_data(acpi_handle, void *); void acpi_bus_detach_private_data(acpi_handle); -void acpi_bus_no_hotplug(acpi_handle handle); extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); extern int register_acpi_notifier(struct notifier_block *); extern int unregister_acpi_notifier(struct notifier_block *); |