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Merge branch 'pm-core'

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* pm-core:
  driver core: Avoid NULL pointer dereferences in device_is_bound()
  platform: Do not detach from PM domains on shutdown
  USB / PM: Allow USB devices to remain runtime-suspended when sleeping
  PM / sleep: Go direct_complete if driver has no callbacks
  PM / Domains: add setter for dev.pm_domain
  device core: add device_is_bound()
This commit is contained in:
Rafael J. Wysocki 2016-01-21 00:42:59 +01:00
commit 6efd3f8cde
18 changed files with 132 additions and 23 deletions
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5
drivers/acpi/acpi_lpss.c
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@ -18,6 +18,7 @@
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/platform_data/clk-lpss.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/delay.h>
@ -875,13 +876,14 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb,
switch (action) {
case BUS_NOTIFY_BIND_DRIVER:
pdev->dev.pm_domain = &acpi_lpss_pm_domain;
dev_pm_domain_set(&pdev->dev, &acpi_lpss_pm_domain);
break;
case BUS_NOTIFY_DRIVER_NOT_BOUND:
case BUS_NOTIFY_UNBOUND_DRIVER:
pdev->dev.pm_domain = NULL;
break;
case BUS_NOTIFY_ADD_DEVICE:
dev_pm_domain_set(&pdev->dev, &acpi_lpss_pm_domain);
if (pdata->dev_desc->flags & LPSS_LTR)
return sysfs_create_group(&pdev->dev.kobj,
&lpss_attr_group);
@ -889,6 +891,7 @@ static int acpi_lpss_platform_notify(struct notifier_block *nb,
case BUS_NOTIFY_DEL_DEVICE:
if (pdata->dev_desc->flags & LPSS_LTR)
sysfs_remove_group(&pdev->dev.kobj, &lpss_attr_group);
dev_pm_domain_set(&pdev->dev, NULL);
break;
default:
break;

5
drivers/acpi/device_pm.c
View file

@ -22,6 +22,7 @@
#include <linux/export.h>
#include <linux/mutex.h>
#include <linux/pm_qos.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include "internal.h"
@ -1059,7 +1060,7 @@ static void acpi_dev_pm_detach(struct device *dev, bool power_off)
struct acpi_device *adev = ACPI_COMPANION(dev);
if (adev && dev->pm_domain == &acpi_general_pm_domain) {
dev->pm_domain = NULL;
dev_pm_domain_set(dev, NULL);
acpi_remove_pm_notifier(adev);
if (power_off) {
/*
@ -1111,7 +1112,7 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
return -EBUSY;
acpi_add_pm_notifier(adev, dev, acpi_pm_notify_work_func);
dev->pm_domain = &acpi_general_pm_domain;
dev_pm_domain_set(dev, &acpi_general_pm_domain);
if (power_on) {
acpi_dev_pm_full_power(adev);
acpi_device_wakeup(adev, ACPI_STATE_S0, false);