diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index c58e5f53bab0..e034b4166d32 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -608,16 +608,16 @@ void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) #define ACPI_EV_LID (1<<1) #define ACPI_EV_DOCK (1<<2) -static struct intel_opregion *system_opregion; - +/* + * The only video events relevant to opregion are 0x80. These indicate either a + * docking event, lid switch or display switch request. In Linux, these are + * handled by the dock, button and video drivers. + */ static int intel_opregion_video_event(struct notifier_block *nb, unsigned long val, void *data) { - /* The only video events relevant to opregion are 0x80. These indicate - either a docking event, lid switch or display switch request. In - Linux, these are handled by the dock, button and video drivers. - */ - + struct intel_opregion *opregion = container_of(nb, struct intel_opregion, + acpi_notifier); struct acpi_bus_event *event = data; struct opregion_acpi *acpi; int ret = NOTIFY_OK; @@ -625,10 +625,7 @@ static int intel_opregion_video_event(struct notifier_block *nb, if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) return NOTIFY_DONE; - if (!system_opregion) - return NOTIFY_DONE; - - acpi = system_opregion->acpi; + acpi = opregion->acpi; if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) ret = NOTIFY_BAD; @@ -638,10 +635,6 @@ static int intel_opregion_video_event(struct notifier_block *nb, return ret; } -static struct notifier_block intel_opregion_notifier = { - .notifier_call = intel_opregion_video_event, -}; - /* * Initialise the DIDL field in opregion. This passes a list of devices to * the firmware. Values are defined by section B.4.2 of the ACPI specification @@ -797,8 +790,8 @@ void intel_opregion_register(struct drm_i915_private *dev_priv) opregion->acpi->csts = 0; opregion->acpi->drdy = 1; - system_opregion = opregion; - register_acpi_notifier(&intel_opregion_notifier); + opregion->acpi_notifier.notifier_call = intel_opregion_video_event; + register_acpi_notifier(&opregion->acpi_notifier); } if (opregion->asle) { @@ -822,8 +815,8 @@ void intel_opregion_unregister(struct drm_i915_private *dev_priv) if (opregion->acpi) { opregion->acpi->drdy = 0; - system_opregion = NULL; - unregister_acpi_notifier(&intel_opregion_notifier); + unregister_acpi_notifier(&opregion->acpi_notifier); + opregion->acpi_notifier.notifier_call = NULL; } /* just clear all opregion memory pointers now */ |