diff options
| author | Henry Lin <henryl@nvidia.com> | 2019-12-11 16:20:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-21 10:35:31 +0100 |
| commit | c312432b695e580a9395ae81b46cd6261e111927 (patch) | |
| tree | 46d8c84875496d43ca381db5a821a0d711ea096e /drivers/usb/host/xhci.c | |
| parent | 6403165fa75a72194f412c45aaff9df077e65fdb (diff) | |
usb: xhci: only set D3hot for pci device
[ Upstream commit f2c710f7dca8457e88b4ac9de2060f011254f9dd ]
Xhci driver cannot call pci_set_power_state() on non-pci xhci host
controllers. For example, NVIDIA Tegra XHCI host controller which acts
as platform device with XHCI_SPURIOUS_WAKEUP quirk set in some platform
hits this issue during shutdown.
Cc: <stable@vger.kernel.org>
Fixes: 638298dc66ea ("xhci: Fix spurious wakeups after S5 on Haswell")
Signed-off-by: Henry Lin <henryl@nvidia.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20191211142007.8847-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7a0db7fb731e..af4e68152776 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -754,11 +754,8 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_shutdown completed - status = %x", readl(&xhci->op_regs->status)); - - /* Yet another workaround for spurious wakeups at shutdown with HSW */ - if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) - pci_set_power_state(to_pci_dev(hcd->self.controller), PCI_D3hot); } +EXPORT_SYMBOL_GPL(xhci_shutdown); #ifdef CONFIG_PM static void xhci_save_registers(struct xhci_hcd *xhci) |