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drm/i915/opregion: move acpi notifier to dev_priv

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Get rid of the silly static variable.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613113927.30033-1-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2018-06-13 14:39:27 +03:00
parent 6ebb6d8ebe
commit 2e932b9cde
2 changed files with 13 additions and 19 deletions
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31
drivers/gpu/drm/i915/intel_opregion.c
View file

@ -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 */

1
drivers/gpu/drm/i915/intel_opregion.h
View file

@ -49,6 +49,7 @@ struct intel_opregion {
u32 vbt_size;
u32 *lid_state;
struct work_struct asle_work;
struct notifier_block acpi_notifier;
};
#define OPREGION_SIZE (8 * 1024)