usb: gadget: add hnp_polling_support and host_request_flag in usb_gadget

Add 2 flags for USB OTG HNP polling, hnp_polling_support is to indicate
if the gadget can support HNP polling, host_request_flag is used for
gadget to store host request information from application, which can be
used to respond to HNP polling from host.

Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index dd7c53279e6ac4835dd999c6c3a088c09ba8365a..5d4e151c49bf73c2f3d9045685fb4a0ec448d412 100644 (file)
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -595,6 +595,10 @@ struct usb_gadget_ops {
  *     only supports HNP on a different root port.
  * @b_hnp_enable: OTG device feature flag, indicating that the A-Host
  *     enabled HNP support.
+ * @hnp_polling_support: OTG device feature flag, indicating if the OTG device
+ *     in peripheral mode can support HNP polling.
+ * @host_request_flag: OTG device feature flag, indicating if A-Peripheral
+ *     or B-Peripheral wants to take host role.
  * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
  *     MaxPacketSize.
  * @is_selfpowered: if the gadget is self-powered.
@@ -642,6 +646,8 @@ struct usb_gadget {
        unsigned                        b_hnp_enable:1;
        unsigned                        a_hnp_support:1;
        unsigned                        a_alt_hnp_support:1;
+       unsigned                        hnp_polling_support:1;
+       unsigned                        host_request_flag:1;
        unsigned                        quirk_ep_out_aligned_size:1;
        unsigned                        quirk_altset_not_supp:1;
        unsigned                        quirk_stall_not_supp:1;