forked from rpms/kernel
115 lines
3.9 KiB
Diff
115 lines
3.9 KiB
Diff
Experimental fixes for the interactions between runtime PM and ACPI power
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resources. Needs some work with upstream.
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diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
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index 310e3b9..371debe 100644
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--- a/drivers/acpi/bus.c
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+++ b/drivers/acpi/bus.c
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@@ -329,7 +329,8 @@ int acpi_bus_set_power(acpi_handle handle, int state)
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goto end;
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}
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}
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- if (device->power.flags.power_resources) {
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+ if (device->power.flags.power_resources &&
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+ !device->wakeup.run_wake_count) {
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result = acpi_power_transition(device, state);
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if (result)
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goto end;
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diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
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index 8b3cc6a..b013174 100644
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--- a/drivers/acpi/pci_bind.c
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+++ b/drivers/acpi/pci_bind.c
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@@ -33,6 +33,8 @@
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#include <acpi/acpi_bus.h>
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#include <acpi/acpi_drivers.h>
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+#include "internal.h"
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+
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#define _COMPONENT ACPI_PCI_COMPONENT
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ACPI_MODULE_NAME("pci_bind");
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@@ -173,6 +175,8 @@ static int acpi_pci_bind(struct acpi_device *device)
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device->ops.unbind = acpi_pci_unbind;
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}
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+ acpi_power_transition(device, acpi_power_get_inferred_state(device));
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+
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/*
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* Evaluate and parse _PRT, if exists. This code allows parsing of
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* _PRT objects within the scope of non-bridge devices. Note that
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diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
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index 844c155..8a42ddf 100644
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--- a/drivers/acpi/power.c
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+++ b/drivers/acpi/power.c
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@@ -394,7 +394,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
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* State Wake) for the device, if present
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* 2. Shutdown down the power resources
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*/
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-int acpi_disable_wakeup_device_power(struct acpi_device *dev)
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+int acpi_disable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
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{
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int i, err = 0;
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@@ -417,6 +417,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
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if (err)
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goto out;
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+ if (sleep_state == ACPI_STATE_S0)
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+ goto out;
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+
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/* Close power resource */
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for (i = 0; i < dev->wakeup.resources.count; i++) {
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int ret = acpi_power_off_device(
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diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
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index 2c5cd02..6bf016b 100644
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--- a/drivers/acpi/sleep.c
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+++ b/drivers/acpi/sleep.c
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@@ -670,7 +670,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
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error = enable ?
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acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
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- acpi_disable_wakeup_device_power(adev);
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+ acpi_disable_wakeup_device_power(adev, acpi_target_sleep_state);
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if (!error)
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dev_info(dev, "wake-up capability %s by ACPI\n",
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enable ? "enabled" : "disabled");
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diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
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index f62a50c..ff48a54 100644
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--- a/drivers/acpi/wakeup.c
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+++ b/drivers/acpi/wakeup.c
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@@ -71,7 +71,7 @@ void acpi_disable_wakeup_devices(u8 sleep_state)
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ACPI_GPE_DISABLE);
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if (dev->wakeup.state.enabled)
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- acpi_disable_wakeup_device_power(dev);
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+ acpi_disable_wakeup_device_power(dev, sleep_state);
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}
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}
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diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
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index 24e19c5..cd99494 100644
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--- a/drivers/pci/pci-acpi.c
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+++ b/drivers/pci/pci-acpi.c
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@@ -302,7 +302,7 @@ static int acpi_dev_run_wake(struct device *phys_dev, bool enable)
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if (!--dev->wakeup.run_wake_count) {
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acpi_disable_gpe(dev->wakeup.gpe_device,
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dev->wakeup.gpe_number);
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- acpi_disable_wakeup_device_power(dev);
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+ acpi_disable_wakeup_device_power(dev, ACPI_STATE_S0);
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}
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} else {
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error = -EALREADY;
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diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
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index 4de84ce..284f43c 100644
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--- a/include/acpi/acpi_bus.h
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+++ b/include/acpi/acpi_bus.h
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@@ -387,7 +387,7 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
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#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
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int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
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-int acpi_disable_wakeup_device_power(struct acpi_device *dev);
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+int acpi_disable_wakeup_device_power(struct acpi_device *dev, int state);
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#ifdef CONFIG_PM_OPS
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int acpi_pm_device_sleep_state(struct device *, int *);
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