diff options
| author | Oza Pawandeep <poza@codeaurora.org> | 2018-05-17 16:44:17 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-06-02 19:29:24 -0500 |
| commit | e76d596aef0caa7296e42e29a0a81bc4155807df (patch) | |
| tree | 0d5b2cf3543ff675bad410bf05a600ebc62fbf63 | |
| parent | f252d0621a1102a66aa833f09531a3baec261288 (diff) | |
PCI/portdrv: Add generic pcie_port_find_device()
Add generic pcie_port_find_device() routine.
Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
| -rw-r--r-- | drivers/pci/pcie/portdrv.h | 1 | ||||
| -rw-r--r-- | drivers/pci/pcie/portdrv_core.c | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index ba6c9636fd9f..d82401acb831 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -114,4 +114,5 @@ static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {} struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev, u32 service); +struct device *pcie_port_find_device(struct pci_dev *dev, u32 service); #endif /* _PORTDRV_H_ */ diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 62468d2f2056..a9c581df7a62 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -21,6 +21,7 @@ struct portdrv_service_data { struct pcie_port_service_driver *drv; + struct device *dev; u32 service; }; @@ -416,6 +417,7 @@ static int find_service_iter(struct device *device, void *data) service_driver = to_service_driver(device->driver); if (service_driver->service == service) { pdrvs->drv = service_driver; + pdrvs->dev = device; return 1; } } @@ -445,6 +447,27 @@ struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev, } /** + * pcie_port_find_device - find the struct device + * @dev: PCI Express port the service is associated with + * @service: For the service to find + * + * Find the struct device associated with given service on a pci_dev + */ +struct device *pcie_port_find_device(struct pci_dev *dev, + u32 service) +{ + struct device *device; + struct portdrv_service_data pdrvs; + + pdrvs.dev = NULL; + pdrvs.service = service; + device_for_each_child(&dev->dev, &pdrvs, find_service_iter); + + device = pdrvs.dev; + return device; +} + +/** * pcie_port_device_remove - unregister PCI Express port service devices * @dev: PCI Express port the service devices to unregister are associated with * |