diff options
| author | Josue David Hernandez Gutierrez <josue.d.hernandez.gutierrez@intel.com> | 2023-03-17 17:47:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-23 17:25:22 +0100 |
| commit | ed526ba2ecdfb77bcdbcf4331b8380b646252c20 (patch) | |
| tree | 40462ab813b6921a1800f61bf42e06d66ce11618 /drivers/usb/host/xhci-pci.c | |
| parent | fabbd95cc47cc412e68d03476367046f4cdbd838 (diff) | |
xhci: move PCI specific MSI/MSIX cleanup away from generic xhci functions
Call the PCI specific MSI/MSIX interrupt freeing code from the xhci-pci
callbacks instead of generic xhci code, decoupling PCI parts from
generic xhci functions.
Adds xhci_pci_stop() that overrides xhci_stop() for PCI xHC controllers.
This will free MSIX interrupts a bit later in the hc_driver stop
callback, but is still earlier than usb core frees "legacy" interrupts,
or interrupts for other hosts.
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/20230317154715.535523-12-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 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 2d56b7477fcd..b6cfc028f8f7 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -230,6 +230,16 @@ static int xhci_pci_run(struct usb_hcd *hcd) return xhci_run(hcd); } +static void xhci_pci_stop(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + + xhci_stop(hcd); + + if (usb_hcd_is_primary_hcd(hcd)) + xhci_cleanup_msix(xhci); +} + /* called after powerup, by probe or system-pm "wakeup" */ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev) { @@ -868,6 +878,7 @@ static void xhci_pci_shutdown(struct usb_hcd *hcd) struct pci_dev *pdev = to_pci_dev(hcd->self.controller); xhci_shutdown(hcd); + xhci_cleanup_msix(xhci); /* Yet another workaround for spurious wakeups at shutdown with HSW */ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) @@ -932,6 +943,7 @@ static int __init xhci_pci_init(void) xhci_pci_hc_driver.pci_poweroff_late = xhci_pci_poweroff_late; xhci_pci_hc_driver.shutdown = xhci_pci_shutdown; #endif + xhci_pci_hc_driver.stop = xhci_pci_stop; return pci_register_driver(&xhci_pci_driver); } module_init(xhci_pci_init); |