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authorAaron Lu <aaron.lu@intel.com>2014-02-19 08:16:48 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-02-21 00:42:09 +0400
commitb9b8515f34fa182e26ee934c3a83f24e2d8bd846 (patch)
treede5413f115b9f0fd410a9c78a5010ec06cd9e7e7 /drivers/acpi/fan.c
parent5e2e46e84b6f77d4f8e51d6e33ff8eb0f47288f2 (diff)
downloadlinux-b9b8515f34fa182e26ee934c3a83f24e2d8bd846.tar.xz
ACPI / fan: do nothing in suspend and poweroff callback
We put fans to full speed in acpi_fan_suspend(), but that is only needed in the hibernation case when we are generating hibernation image, so this patch removes that when we are about to suspend or poweroff. References: http://www.spinics.net/lists/linux-acpi/msg48636.html Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/fan.c')
-rw-r--r--drivers/acpi/fan.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 09e423f3d8ad..8acf53e62966 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -55,11 +55,16 @@ MODULE_DEVICE_TABLE(acpi, fan_device_ids);
#ifdef CONFIG_PM_SLEEP
static int acpi_fan_suspend(struct device *dev);
static int acpi_fan_resume(struct device *dev);
+static struct dev_pm_ops acpi_fan_pm = {
+ .resume = acpi_fan_resume,
+ .freeze = acpi_fan_suspend,
+ .thaw = acpi_fan_resume,
+ .restore = acpi_fan_resume,
+};
+#define FAN_PM_OPS_PTR (&acpi_fan_pm)
#else
-#define acpi_fan_suspend NULL
-#define acpi_fan_resume NULL
+#define FAN_PM_OPS_PTR NULL
#endif
-static SIMPLE_DEV_PM_OPS(acpi_fan_pm, acpi_fan_suspend, acpi_fan_resume);
static struct acpi_driver acpi_fan_driver = {
.name = "fan",
@@ -69,7 +74,7 @@ static struct acpi_driver acpi_fan_driver = {
.add = acpi_fan_add,
.remove = acpi_fan_remove,
},
- .drv.pm = &acpi_fan_pm,
+ .drv.pm = FAN_PM_OPS_PTR,
};
/* thermal cooling device callbacks */