Now some usb controllers (such as dwc3 controller) need 'XHCI_SLOW_SUSPEND'
quirk when suspending the xhci, thus we need to add 'usb3_slow_suspend' member
in xhci platform data to support this.
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
---
drivers/usb/host/xhci-plat.c | 3 +++
include/linux/usb/xhci_pdriver.h | 3 +++
2 files changed, 6 insertions(+)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index e2e2487..162f17c 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -250,6 +250,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
(pdata && pdata->usb3_lpm_capable))
xhci->quirks |= XHCI_LPM_SUPPORT;
+ if (pdata && pdata->usb3_slow_suspend)
+ xhci->quirks |= XHCI_SLOW_SUSPEND;
+
return 0;
diff --git a/include/linux/usb/xhci_pdriver.h b/include/linux/usb/xhci_pdriver.h
index 376654b..1276de1 100644
--- a/include/linux/usb/xhci_pdriver.h
+++ b/include/linux/usb/xhci_pdriver.h
@@ -18,10 +18,13 @@
*
* @usb3_lpm_capable: determines if this xhci platform supports USB3
* LPM capability
+ * @usb3_slow_suspend: determines if it need an extraordinary delay when
+ * suspending xhci.
*
*/
struct usb_xhci_pdata {
unsigned usb3_lpm_capable:1;
+ unsigned usb3_slow_suspend:1;
};
#endif /* __USB_CORE_XHCI_PDRIVER_H */
--
1.7.9.5
--
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