Add of_scan_bus() to support some platforms scan bus by of_node. Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx> --- drivers/pci/host-bridge.c | 1 + drivers/pci/probe.c | 10 +++++++--- include/linux/pci.h | 3 +++ 3 files changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c index 872cae1..1a1f81b 100644 --- a/drivers/pci/host-bridge.c +++ b/drivers/pci/host-bridge.c @@ -52,6 +52,7 @@ struct pci_host_bridge *pci_create_host_bridge( return NULL; host->sysdata = info->arg; + host->node = info->node; host->busnum = PCI_BUSNUM(db); host->domain = PCI_DOMAIN(db); host->ops = ops; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 42158fd..2729c41 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -2126,9 +2126,13 @@ struct pci_host_bridge *pci_scan_host_bridge( pci_bus_insert_busn_res(host->bus, host->busnum, 255); } - max = pci_scan_child_bus(host->bus); - if (!found) - pci_bus_update_busn_res_end(host->bus, max); + if (info->of_scan_bus) { + info->of_scan_bus(host); + } else { + max = pci_scan_child_bus(host->bus); + if (!found) + pci_bus_update_busn_res_end(host->bus, max); + } return host; diff --git a/include/linux/pci.h b/include/linux/pci.h index af1ee86..c4f4438 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -407,6 +407,7 @@ struct pci_host_bridge { int busnum; int domain; void *sysdata; + struct device_node *node; struct pci_ops *ops; struct msi_controller *(*get_msi_ctrl)(struct pci_dev *pdev); void (*release_fn)(struct pci_host_bridge *); @@ -416,10 +417,12 @@ struct pci_host_bridge { struct pci_host_info { u8 res_type; void *arg; + struct device_node *node; struct list_head *resources; /*just for build, will clean up later */ struct msi_controller *(*get_msi_ctrl)(struct pci_dev *pdev); int (*init_res)(struct pci_host_bridge *host, struct pci_host_info *info); + void (*of_scan_bus)(struct pci_host_bridge *host); }; static inline void init_pci_host_info(struct pci_host_info *info) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html