diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2018-05-15 11:07:06 +0200 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | f4d33cc0e2916f4d134f8704a403f8c6b3fcd54a (patch) | |
| tree | a9bd2859be1268ccc9ef4d1cb4e938bee35f824a /drivers/pci | |
| parent | de17c99a59e1a037f79b6620489220310d4ef94b (diff) | |
PCI: Add support for unbinding the generic PCI host controller
Add support for unbinding the generic PCI host controller. This is
particularly useful when working in virtual environments where the
controller may come and go, but possibly not only there.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Will Deacon <will.deacon@arm.com>
CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
(cherry picked from commit 01fcb7f777a9f5d216a1ff41228f15656e50fb63)
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/host/pci-host-common.c | 14 | ||||
| -rw-r--r-- | drivers/pci/host/pci-host-generic.c | 1 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pci/host/pci-host-common.c b/drivers/pci/host/pci-host-common.c index e3c48b5deb93..b2e2b518e589 100644 --- a/drivers/pci/host/pci-host-common.c +++ b/drivers/pci/host/pci-host-common.c @@ -163,5 +163,19 @@ int pci_host_common_probe(struct platform_device *pdev, } pci_bus_add_devices(bus); + + platform_set_drvdata(pdev, bus); + return 0; +} + +int pci_host_common_remove(struct platform_device *pdev) +{ + struct pci_bus *bus = platform_get_drvdata(pdev); + + pci_lock_rescan_remove(); + pci_stop_root_bus(bus); + pci_remove_root_bus(bus); + pci_unlock_rescan_remove(); + return 0; } diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c index c05ea9d72f69..326d6726347d 100644 --- a/drivers/pci/host/pci-host-generic.c +++ b/drivers/pci/host/pci-host-generic.c @@ -62,5 +62,6 @@ static struct platform_driver gen_pci_driver = { .of_match_table = gen_pci_of_match, }, .probe = gen_pci_probe, + .remove = pci_host_common_remove, }; builtin_platform_driver(gen_pci_driver); |