openwrt/target/linux/generic/patches-3.18/020-ssb_update.patch

79 lines
2.0 KiB
Diff

--- a/drivers/ssb/pcihost_wrapper.c
+++ b/drivers/ssb/pcihost_wrapper.c
@@ -11,15 +11,17 @@
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include <linux/pm.h>
#include <linux/pci.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/ssb/ssb.h>
-#ifdef CONFIG_PM
-static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int ssb_pcihost_suspend(struct device *d)
{
+ struct pci_dev *dev = to_pci_dev(d);
struct ssb_bus *ssb = pci_get_drvdata(dev);
int err;
@@ -28,17 +30,23 @@ static int ssb_pcihost_suspend(struct pc
return err;
pci_save_state(dev);
pci_disable_device(dev);
- pci_set_power_state(dev, pci_choose_state(dev, state));
+
+ /* if there is a wakeup enabled child device on ssb bus,
+ enable pci wakeup posibility. */
+ device_set_wakeup_enable(d, d->power.wakeup_path);
+
+ pci_prepare_to_sleep(dev);
return 0;
}
-static int ssb_pcihost_resume(struct pci_dev *dev)
+static int ssb_pcihost_resume(struct device *d)
{
+ struct pci_dev *dev = to_pci_dev(d);
struct ssb_bus *ssb = pci_get_drvdata(dev);
int err;
- pci_set_power_state(dev, PCI_D0);
+ pci_back_from_sleep(dev);
err = pci_enable_device(dev);
if (err)
return err;
@@ -49,10 +57,12 @@ static int ssb_pcihost_resume(struct pci
return 0;
}
-#else /* CONFIG_PM */
-# define ssb_pcihost_suspend NULL
-# define ssb_pcihost_resume NULL
-#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops ssb_pcihost_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ssb_pcihost_suspend, ssb_pcihost_resume)
+};
+
+#endif /* CONFIG_PM_SLEEP */
static int ssb_pcihost_probe(struct pci_dev *dev,
const struct pci_device_id *id)
@@ -115,8 +125,9 @@ int ssb_pcihost_register(struct pci_driv
{
driver->probe = ssb_pcihost_probe;
driver->remove = ssb_pcihost_remove;
- driver->suspend = ssb_pcihost_suspend;
- driver->resume = ssb_pcihost_resume;
+#ifdef CONFIG_PM_SLEEP
+ driver->driver.pm = &ssb_pcihost_pm_ops;
+#endif
return pci_register_driver(driver);
}