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authorPaolo Abeni <pabeni@redhat.com>2022-09-08 18:34:54 +0200
committerPaolo Abeni <pabeni@redhat.com>2022-09-08 18:38:30 +0200
commit9f8f1933dce555d3c246f447f54fca8de8889da9 (patch)
treedc447d0174473de8385d47eb8aedc058a336e4a9 /drivers/usb/host/xhci-hub.c
parent75554fe00f941c3c3d9344e88708093a14d2b4b8 (diff)
parent26b1224903b3fb66e8aa564868d0d57648c32b15 (diff)
downloadlinux-9f8f1933dce555d3c246f447f54fca8de8889da9.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/freescale/fec.h
  7d650df99d52 ("net: fec: add pm_qos support on imx6q platform")
  40c79ce13b03 ("net: fec: add stop mode support for imx8 platform")

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
-rw-r--r--drivers/usb/host/xhci-hub.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 0fdc014c9401..4619d5e89d5b 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -652,7 +652,7 @@ struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd)
  * It will release and re-aquire the lock while calling ACPI
  * method.
  */
-void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd,
+static void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd,
 				u16 index, bool on, unsigned long *flags)
 	__must_hold(&xhci->lock)
 {
@@ -1648,6 +1648,17 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 
 	status = bus_state->resuming_ports;
 
+	/*
+	 * SS devices are only visible to roothub after link training completes.
+	 * Keep polling roothubs for a grace period after xHC start
+	 */
+	if (xhci->run_graceperiod) {
+		if (time_before(jiffies, xhci->run_graceperiod))
+			status = 1;
+		else
+			xhci->run_graceperiod = 0;
+	}
+
 	mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC | PORT_CEC;
 
 	/* For each port, did anything change?  If so, set that bit in buf. */