usb: host: xhci: mvebu: add reset on resume quirk
The mvebu xHCI host driver does not have suspend/resume support. Use of
the XHCI_RESET_ON_RESUME quirk is mandatory in order to avoid failures
after resume. This will work only if no USB device is plugged-in.
While at it, mention in the Kconfig file that this IP is also present
on the A3700 SoC.
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[miquel.raynal@bootlin.com: Reword the commit message]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/xhci-mvebu.c b/drivers/usb/host/xhci-mvebu.c
index 32e1585..60651a5 100644
--- a/drivers/usb/host/xhci-mvebu.c
+++ b/drivers/usb/host/xhci-mvebu.c
@@ -13,6 +13,7 @@
#include <linux/usb/hcd.h>
#include "xhci-mvebu.h"
+#include "xhci.h"
#define USB3_MAX_WINDOWS 4
#define USB3_WIN_CTRL(w) (0x0 + ((w) * 8))
@@ -72,3 +73,13 @@ int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd)
return 0;
}
+
+int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd)
+{
+ struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+
+ /* Without reset on resume, the HC won't work at all */
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+
+ return 0;
+}