diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/video.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_opregion.c | 15 |
2 files changed, 15 insertions, 7 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index db39e9e607d8..ada4b4d9bdc8 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -46,7 +46,6 @@ #define PREFIX "ACPI: " -#define ACPI_VIDEO_CLASS "video" #define ACPI_VIDEO_BUS_NAME "Video Bus" #define ACPI_VIDEO_DEVICE_NAME "Video Device" #define ACPI_VIDEO_NOTIFY_SWITCH 0x80 @@ -1445,7 +1444,8 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, * most likely via hotkey. */ acpi_bus_generate_proc_event(device, event, 0); - keycode = KEY_SWITCHVIDEOMODE; + if (!acpi_notifier_call_chain(device, event, 0)) + keycode = KEY_SWITCHVIDEOMODE; break; case ACPI_VIDEO_NOTIFY_PROBE: /* User plugged in or removed a video @@ -1475,7 +1475,8 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) break; } - acpi_notifier_call_chain(device, event, 0); + if (event != ACPI_VIDEO_NOTIFY_SWITCH) + acpi_notifier_call_chain(device, event, 0); if (keycode) { input_report_key(input, keycode, 1); diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index d2c710422908..b7c5ddb564d1 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -297,19 +297,26 @@ static int intel_opregion_video_event(struct notifier_block *nb, /* 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. - We might want to fix the video driver to be opregion-aware in - future, but right now we just indicate to the firmware that the - request has been handled */ + */ struct opregion_acpi *acpi; + struct acpi_bus_event *event = data; + int ret = NOTIFY_OK; + + if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) + return NOTIFY_DONE; if (!system_opregion) return NOTIFY_DONE; acpi = system_opregion->acpi; + + if (event->type == 0x80 && !(acpi->cevt & 0x1)) + ret = NOTIFY_BAD; + acpi->csts = 0; - return NOTIFY_OK; + return ret; } static struct notifier_block intel_opregion_notifier = { |