diff options
| author | Sergio Paracuellos <sergio.paracuellos@gmail.com> | 2021-12-07 11:49:20 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-01-12 15:37:10 -0600 |
| commit | 661c4c4f2693a8cdd42a93a2418244b8f5115e6b (patch) | |
| tree | 2ac86ced24876c4168536344b26475e2cd5eec7d /drivers/pci | |
| parent | da48157092e7dd25e8c0fa38e0ccd93219a66046 (diff) | |
| download | linux-661c4c4f2693a8cdd42a93a2418244b8f5115e6b.tar.bz2 | |
PCI: Let pcibios_root_bridge_prepare() access bridge->windows
When pci_register_host_bridge() is called, bridge->windows are already
available. However these windows are being moved temporarily from there.
To let pcibios_root_bridge_prepare() have access to these windows, move the
windows movement after calling this function. This is useful for the MIPS
ralink mt7621 platform so it can set up I/O coherence units and avoid
custom MIPS code in the mt7621 PCIe controller driver.
Link: https://lore.kernel.org/r/20211207104924.21327-2-sergio.paracuellos@gmail.com
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/probe.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 087d3658f75c..372a70efccc6 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -898,8 +898,6 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) bridge->bus = bus; - /* Temporarily move resources off the list */ - list_splice_init(&bridge->windows, &resources); bus->sysdata = bridge->sysdata; bus->ops = bridge->ops; bus->number = bus->busn_res.start = bridge->busnr; @@ -925,6 +923,8 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge) if (err) goto free; + /* Temporarily move resources off the list */ + list_splice_init(&bridge->windows, &resources); err = device_add(&bridge->dev); if (err) { put_device(&bridge->dev); |