Commit e76d596a authored by Oza Pawandeep's avatar Oza Pawandeep Committed by Bjorn Helgaas
Browse files

PCI/portdrv: Add generic pcie_port_find_device() 



Add generic pcie_port_find_device() routine.

Signed-off-by: default avatarOza Pawandeep <poza@codeaurora.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarKeith Busch <keith.busch@intel.com>
parent f252d062

drivers/pci/pcie/portdrv.h

+1 −0
Original line number Diff line number Diff line
@@ -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_ */

drivers/pci/pcie/portdrv_core.c

+23 −0
Original line number Diff line number Diff line
@@ -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;

		}

	}
@@ -444,6 +446,27 @@ struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev, 
	return drv;

}



/**

 * 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