Commit cfe51ec1 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by John W. Linville
Browse files

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



The wifi driver should tell the PCIe core that it is now in operation
so that some workarounds can be applied and the power state is changed.
This should replace the call to bcma_core_pci_extend_L1timer by the
brcmsmac driver.

Signed-off-by: default avatarHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent f4a83e57

drivers/bcma/driver_pci.c

+26 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/bcma/bcma_driver_pci.h

+3 −0
Original line number Diff line number Diff line
@@ -185,6 +185,7 @@ struct pci_dev; 
#define BCMA_CORE_PCI_RC_CRS_VISIBILITY		0x0001



struct bcma_drv_pci;

struct bcma_bus;



#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE

struct bcma_drv_pci_host {
@@ -220,6 +221,8 @@ extern void bcma_core_pci_init(struct bcma_drv_pci *pc); 
extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc,

				 struct bcma_device *core, bool enable);

extern void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend);

extern void bcma_core_pci_up(struct bcma_bus *bus);

extern void bcma_core_pci_down(struct bcma_bus *bus);



extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);

extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);

CRA Git | Maintained and supported by SUSTech CRA and CCSE