Commit 6032649d authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau: hook up acpi power supply change tracking 



Not used at all yet, but lets hook it up now anyway.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 18a16a76

drivers/gpu/drm/nouveau/nouveau_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -439,6 +439,7 @@ struct nouveau_pm_engine { 
	struct nouveau_pm_level *cur;



	struct device *hwmon;

	struct notifier_block acpi_nb;



	int (*clock_get)(struct drm_device *, u32 id);

	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,

drivers/gpu/drm/nouveau/nouveau_pm.c

+30 −0
Original line number Diff line number Diff line
@@ -27,6 +27,10 @@ 
#include "nouveau_drv.h"

#include "nouveau_pm.h"



#ifdef CONFIG_ACPI

#include <linux/acpi.h>

#endif

#include <linux/power_supply.h>

#include <linux/hwmon.h>

#include <linux/hwmon-sysfs.h>
@@ -446,6 +450,25 @@ nouveau_hwmon_fini(struct drm_device *dev) 
#endif

}



#ifdef CONFIG_ACPI

static int

nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)

{

	struct drm_nouveau_private *dev_priv =

		container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb);

	struct drm_device *dev = dev_priv->dev;

	struct acpi_bus_event *entry = (struct acpi_bus_event *)data;



	if (strcmp(entry->device_class, "ac_adapter") == 0) {

		bool ac = power_supply_is_system_supplied();



		NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC");

	}



	return NOTIFY_OK;

}

#endif



int

nouveau_pm_init(struct drm_device *dev)

{
@@ -485,6 +508,10 @@ nouveau_pm_init(struct drm_device *dev) 


	nouveau_sysfs_init(dev);

	nouveau_hwmon_init(dev);

#ifdef CONFIG_ACPI

	pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;

	register_acpi_notifier(&pm->acpi_nb);

#endif



	return 0;

}
@@ -503,6 +530,9 @@ nouveau_pm_fini(struct drm_device *dev) 
	nouveau_perf_fini(dev);

	nouveau_volt_fini(dev);



#ifdef CONFIG_ACPI

	unregister_acpi_notifier(&pm->acpi_nb);

#endif

	nouveau_hwmon_fini(dev);

	nouveau_sysfs_fini(dev);

}