bcma: add method to power up and down the PCIe core by wifi driver

[firefly-linux-kernel-4.4.55.git] / drivers / bcma / driver_pci.c

diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index cf7a476a519f1809ec5313765c4e236e074a5230..6ea817fae59f4c44127101ae9f416fa340f4e755 100644 (file)
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -275,3 +275,29 @@ void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend)
        bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_PMTHRESHREG);
 }
 EXPORT_SYMBOL_GPL(bcma_core_pci_extend_L1timer);
+
+void bcma_core_pci_up(struct bcma_bus *bus)
+{
+       struct bcma_drv_pci *pc;
+
+       if (bus->hosttype != BCMA_HOSTTYPE_PCI)
+               return;
+
+       pc = &bus->drv_pci[0];
+
+       bcma_core_pci_extend_L1timer(pc, true);
+}
+EXPORT_SYMBOL_GPL(bcma_core_pci_up);
+
+void bcma_core_pci_down(struct bcma_bus *bus)
+{
+       struct bcma_drv_pci *pc;
+
+       if (bus->hosttype != BCMA_HOSTTYPE_PCI)
+               return;
+
+       pc = &bus->drv_pci[0];
+
+       bcma_core_pci_extend_L1timer(pc, false);
+}
+EXPORT_SYMBOL_GPL(bcma_core_pci_down);