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| author | Josue David Hernandez Gutierrez <josue.d.hernandez.gutierrez@intel.com> | 2023-03-17 18:47:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-23 19:25:23 +0300 |
| commit | ba47b1aa7640cb98bb3e4c06f37afdbeb5c5d9ba (patch) | |
| tree | f81002dacc541bdd72796ff5d5e7bbca641e7d67 /drivers/usb/host/xhci-pci.c | |
| parent | ed526ba2ecdfb77bcdbcf4331b8380b646252c20 (diff) | |
| download | linux-ba47b1aa7640cb98bb3e4c06f37afdbeb5c5d9ba.tar.xz | |
xhci: Move functions to cleanup MSI to xhci-pci
Move function to cleanup MSI from xhci.c to xhci-pci.c
This is to decouple PCI specific code from generic xhci code.
No functional changes, function is an exact copy
Signed-off-by: Josue David Hernandez Gutierrez <josue.d.hernandez.gutierrez@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230317154715.535523-13-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index b6cfc028f8f7..1e84a842e2a9 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -88,6 +88,32 @@ static const struct xhci_driver_overrides xhci_pci_overrides __initconst = { .update_hub_device = xhci_pci_update_hub_device, }; +/* Free any IRQs and disable MSI-X */ +static void xhci_cleanup_msix(struct xhci_hcd *xhci) +{ + struct usb_hcd *hcd = xhci_to_hcd(xhci); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + + if (xhci->quirks & XHCI_PLAT) + return; + + /* return if using legacy interrupt */ + if (hcd->irq > 0) + return; + + if (hcd->msix_enabled) { + int i; + + for (i = 0; i < xhci->msix_count; i++) + free_irq(pci_irq_vector(pdev, i), xhci_to_hcd(xhci)); + } else { + free_irq(pci_irq_vector(pdev, 0), xhci_to_hcd(xhci)); + } + + pci_free_irq_vectors(pdev); + hcd->msix_enabled = 0; +} + /* * Set up MSI */ |