Commit 3a85c101 authored by Théo Lebrun's avatar Théo Lebrun Committed by Greg Kroah-Hartman
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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: default avatarThéo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-9-13658a271c3c@bootlin.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 668cc6bc

drivers/usb/cdns3/host.c

+11 −0
Original line number Diff line number Diff line
@@ -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";