This is needed by atl1c.
This is compat-wireless upstream commit:
454fb1a4a698bd2935af76800bc17e14b086476a
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
compat/compat-2.6.28.c | 22 ++++++++++++++++++++++
include/linux/compat-2.6.28.h | 2 ++
2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/compat/compat-2.6.28.c b/compat/compat-2.6.28.c
index 7a834d2..72c9e09 100644
--- a/compat/compat-2.6.28.c
+++ b/compat/compat-2.6.28.c
@@ -439,3 +439,25 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
}
EXPORT_SYMBOL(n_tty_ioctl_helper);
+/**
+ * pci_wake_from_d3 - enable/disable device to wake up from D3_hot or D3_cold
+ * @dev: PCI device to prepare
+ * @enable: True to enable wake-up event generation; false to disable
+ *
+ * Many drivers want the device to wake up the system from D3_hot or D3_cold
+ * and this function allows them to set that up cleanly - pci_enable_wake()
+ * should not be called twice in a row to enable wake-up due to PCI PM vs ACPI
+ * ordering constraints.
+ *
+ * This function only returns error code if the device is not capable of
+ * generating PME# from both D3_hot and D3_cold, and the platform is unable to
+ * enable wake-up power for it.
+ */
+int pci_wake_from_d3(struct pci_dev *dev, bool enable)
+{
+ return pci_pme_capable(dev, PCI_D3cold) ?
+ pci_enable_wake(dev, PCI_D3cold, enable) :
+ pci_enable_wake(dev, PCI_D3hot, enable);
+}
+EXPORT_SYMBOL(pci_wake_from_d3);
+
diff --git a/include/linux/compat-2.6.28.h b/include/linux/compat-2.6.28.h
index 1de39ad..b9024d6 100644
--- a/include/linux/compat-2.6.28.h
+++ b/include/linux/compat-2.6.28.h
@@ -234,6 +234,8 @@ extern void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page,
extern int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
+int pci_wake_from_d3(struct pci_dev *dev, bool enable);
+
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)) */
#endif /* LINUX_26_28_COMPAT_H */
--
1.7.1
--
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