diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2015-02-08 17:11:47 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2015-03-02 16:59:45 +0200 |
| commit | 4186721d02b71ae943e60bbf50d3488fd5fd6adb (patch) | |
| tree | 7623f94d3baa042f5090780bb285f5be1e6ff847 /drivers/bcma | |
| parent | ba8b6ae6e91ed4d866f83b026138cc75a955e101 (diff) | |
bcma: add helpers bringing PCIe hosted bus up / down
Bringing PCIe hosted bus up requires operating on host-related core.
Since we plan to support PCIe Gen 2 devices we should provide a helper
picking the correct one (PCIE or PCIE2).
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/bcma')
| -rw-r--r-- | drivers/bcma/bcma_private.h | 2 | ||||
| -rw-r--r-- | drivers/bcma/driver_pci.c | 20 | ||||
| -rw-r--r-- | drivers/bcma/host_pci.c | 28 |
3 files changed, 32 insertions, 18 deletions
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index ac6c5fca906d..351f4afdad25 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h @@ -101,6 +101,8 @@ static inline void __exit bcma_host_soc_unregister_driver(void) /* driver_pci.c */ u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address); +void bcma_core_pci_up(struct bcma_drv_pci *pc); +void bcma_core_pci_down(struct bcma_drv_pci *pc); extern int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc); diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c index 786666488a2d..cf92bfa7eae0 100644 --- a/drivers/bcma/driver_pci.c +++ b/drivers/bcma/driver_pci.c @@ -328,28 +328,12 @@ static void bcma_core_pci_extend_L1timer(struct bcma_drv_pci *pc, bool extend) bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_PMTHRESHREG); } -void bcma_core_pci_up(struct bcma_bus *bus) +void bcma_core_pci_up(struct bcma_drv_pci *pc) { - 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) +void bcma_core_pci_down(struct bcma_drv_pci *pc) { - 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); diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c index 53c6a8a58859..8dd37dc94cae 100644 --- a/drivers/bcma/host_pci.c +++ b/drivers/bcma/host_pci.c @@ -310,3 +310,31 @@ void __exit bcma_host_pci_exit(void) { pci_unregister_driver(&bcma_pci_bridge_driver); } + +/************************************************** + * Runtime ops for drivers. + **************************************************/ + +/* See also pcicore_up */ +void bcma_host_pci_up(struct bcma_bus *bus) +{ + if (bus->hosttype != BCMA_HOSTTYPE_PCI) + return; + + if (bus->host_is_pcie2) + pr_warn("Bringing up bus with PCIe Gen 2 host is unsupported yet\n"); + else + bcma_core_pci_up(&bus->drv_pci[0]); +} +EXPORT_SYMBOL_GPL(bcma_host_pci_up); + +/* See also pcicore_down */ +void bcma_host_pci_down(struct bcma_bus *bus) +{ + if (bus->hosttype != BCMA_HOSTTYPE_PCI) + return; + + if (!bus->host_is_pcie2) + bcma_core_pci_down(&bus->drv_pci[0]); +} +EXPORT_SYMBOL_GPL(bcma_host_pci_down); |