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 core (PCIE or PCIE2).
Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
What do you think about this? Any comments?
Do you think putting such a helper in host_pci.c is OK?
I plan to provide similar changes for bcma_core_pci_down & bcma_core_pci_irq_ctl
---
drivers/bcma/bcma_private.h | 1 +
drivers/bcma/driver_pci.c | 10 +---------
drivers/bcma/host_pci.c | 17 +++++++++++++++++
drivers/net/wireless/b43/main.c | 2 +-
drivers/net/wireless/brcm80211/brcmsmac/main.c | 2 +-
include/linux/bcma/bcma.h | 2 ++
include/linux/bcma/bcma_driver_pci.h | 1 -
7 files changed, 23 insertions(+), 12 deletions(-)
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
index ac6c5fc..9123741 100644
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -101,6 +101,7 @@ 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);
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 7866664..1014ab4 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -328,18 +328,10 @@ 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)
{
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index 53c6a8a..9a89f3d 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -310,3 +310,20 @@ 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);
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index edf535e..f59c25d 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4847,7 +4847,7 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
case B43_BUS_BCMA:
bcma_core_pci_irq_ctl(&dev->dev->bdev->bus->drv_pci[0],
dev->dev->bdev, true);
- bcma_core_pci_up(dev->dev->bdev->bus);
+ bcma_host_pci_up(dev->dev->bdev->bus);
break;
#endif
#ifdef CONFIG_B43_SSB
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index eb8584a..aa7629f 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -4974,7 +4974,7 @@ static int brcms_b_up_prep(struct brcms_hardware *wlc_hw)
return -ENOMEDIUM;
}
- bcma_core_pci_up(wlc_hw->d11core->bus);
+ bcma_host_pci_up(wlc_hw->d11core->bus);
/* reset the d11 core */
brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS);
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 994739d..6f0c734 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -434,6 +434,8 @@ static inline struct bcma_device *bcma_find_core(struct bcma_bus *bus,
return bcma_find_core_unit(bus, coreid, 0);
}
+extern void bcma_host_pci_up(struct bcma_bus *bus);
+
extern bool bcma_core_is_enabled(struct bcma_device *core);
extern void bcma_core_disable(struct bcma_device *core, u32 flags);
extern int bcma_core_enable(struct bcma_device *core, u32 flags);
diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h
index 3f809ae..c7a7db5 100644
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -242,7 +242,6 @@ extern void bcma_core_pci_early_init(struct bcma_drv_pci *pc);
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_up(struct bcma_bus *bus);
extern void bcma_core_pci_down(struct bcma_bus *bus);
extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
--
1.8.4.5
--
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