From: Théo Lebrun Date: Wed, 5 Feb 2025 17:36:54 +0000 (+0100) Subject: usb: host: cdns3: forward lost power information to xhci X-Git-Tag: v6.15-rc1~46^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a85c10115407588fad696d6c121d54cd5ba5d72;p=thirdparty%2Fkernel%2Flinux.git usb: host: cdns3: forward lost power information to xhci cdns3-plat can know if power was lost across system-wide suspend. Forward that information: - Grab the lost_power bool from cdns_role_driver::resume(). Store it into the power_lost field in struct xhci_plat_priv. - xhci-plat will call xhci_resume() with that value (ORed to whether we are in a hibernation restore). Signed-off-by: Théo Lebrun Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-9-13658a271c3c@bootlin.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/cdns3/host.c b/drivers/usb/cdns3/host.c index 7ba760ee62e33..f0df114c2b53b 100644 --- a/drivers/usb/cdns3/host.c +++ b/drivers/usb/cdns3/host.c @@ -138,6 +138,16 @@ static void cdns_host_exit(struct cdns *cdns) cdns_drd_host_off(cdns); } +static int cdns_host_resume(struct cdns *cdns, bool power_lost) +{ + struct usb_hcd *hcd = platform_get_drvdata(cdns->host_dev); + struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); + + priv->power_lost = power_lost; + + return 0; +} + int cdns_host_init(struct cdns *cdns) { struct cdns_role_driver *rdrv; @@ -148,6 +158,7 @@ int cdns_host_init(struct cdns *cdns) rdrv->start = __cdns_host_init; rdrv->stop = cdns_host_exit; + rdrv->resume = cdns_host_resume; rdrv->state = CDNS_ROLE_STATE_INACTIVE; rdrv->name = "host";