Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 1194 insertions, 0 deletions

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
new file mode 100644
index 000000000..105132ae8
--- /dev/null
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -0,0 +1,1194 @@
+// SPDX-License-Identifier: GPL-1.0+
+/*
+ * Renesas USB driver
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2019 Renesas Electronics Corporation
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ */
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
+#include "common.h"
+
+/*
+ *		struct
+ */
+struct usbhsg_request {
+	struct usb_request	req;
+	struct usbhs_pkt	pkt;
+};
+
+#define EP_NAME_SIZE 8
+struct usbhsg_gpriv;
+struct usbhsg_uep {
+	struct usb_ep		 ep;
+	struct usbhs_pipe	*pipe;
+	spinlock_t		lock;	/* protect the pipe */
+
+	char ep_name[EP_NAME_SIZE];
+
+	struct usbhsg_gpriv *gpriv;
+};
+
+struct usbhsg_gpriv {
+	struct usb_gadget	 gadget;
+	struct usbhs_mod	 mod;
+
+	struct usbhsg_uep	*uep;
+	int			 uep_size;
+
+	struct usb_gadget_driver	*driver;
+	struct usb_phy		*transceiver;
+	bool			 vbus_active;
+
+	u32	status;
+#define USBHSG_STATUS_STARTED		(1 << 0)
+#define USBHSG_STATUS_REGISTERD		(1 << 1)
+#define USBHSG_STATUS_WEDGE		(1 << 2)
+#define USBHSG_STATUS_SELF_POWERED	(1 << 3)
+#define USBHSG_STATUS_SOFT_CONNECT	(1 << 4)
+};
+
+struct usbhsg_recip_handle {
+	char *name;
+	int (*device)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
+		      struct usb_ctrlrequest *ctrl);
+	int (*interface)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
+			 struct usb_ctrlrequest *ctrl);
+	int (*endpoint)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
+			struct usb_ctrlrequest *ctrl);
+};
+
+/*
+ *		macro
+ */
+#define usbhsg_priv_to_gpriv(priv)			\
+	container_of(					\
+		usbhs_mod_get(priv, USBHS_GADGET),	\
+		struct usbhsg_gpriv, mod)
+
+#define __usbhsg_for_each_uep(start, pos, g, i)	\
+	for ((i) = start;					\
+	     ((i) < (g)->uep_size) && ((pos) = (g)->uep + (i));	\
+	     (i)++)
+
+#define usbhsg_for_each_uep(pos, gpriv, i)	\
+	__usbhsg_for_each_uep(1, pos, gpriv, i)
+
+#define usbhsg_for_each_uep_with_dcp(pos, gpriv, i)	\
+	__usbhsg_for_each_uep(0, pos, gpriv, i)
+
+#define usbhsg_gadget_to_gpriv(g)\
+	container_of(g, struct usbhsg_gpriv, gadget)
+
+#define usbhsg_req_to_ureq(r)\
+	container_of(r, struct usbhsg_request, req)
+
+#define usbhsg_ep_to_uep(e)		container_of(e, struct usbhsg_uep, ep)
+#define usbhsg_gpriv_to_dev(gp)		usbhs_priv_to_dev((gp)->mod.priv)
+#define usbhsg_gpriv_to_priv(gp)	((gp)->mod.priv)
+#define usbhsg_gpriv_to_dcp(gp)		((gp)->uep)
+#define usbhsg_gpriv_to_nth_uep(gp, i)	((gp)->uep + i)
+#define usbhsg_uep_to_gpriv(u)		((u)->gpriv)
+#define usbhsg_uep_to_pipe(u)		((u)->pipe)
+#define usbhsg_pipe_to_uep(p)		((p)->mod_private)
+#define usbhsg_is_dcp(u)		((u) == usbhsg_gpriv_to_dcp((u)->gpriv))
+
+#define usbhsg_ureq_to_pkt(u)		(&(u)->pkt)
+#define usbhsg_pkt_to_ureq(i)	\
+	container_of(i, struct usbhsg_request, pkt)
+
+#define usbhsg_is_not_connected(gp) ((gp)->gadget.speed == USB_SPEED_UNKNOWN)
+
+/* status */
+#define usbhsg_status_init(gp)   do {(gp)->status = 0; } while (0)
+#define usbhsg_status_set(gp, b) (gp->status |=  b)
+#define usbhsg_status_clr(gp, b) (gp->status &= ~b)
+#define usbhsg_status_has(gp, b) (gp->status &   b)
+
+/*
+ *		queue push/pop
+ */
+static void __usbhsg_queue_pop(struct usbhsg_uep *uep,
+			       struct usbhsg_request *ureq,
+			       int status)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+
+	if (pipe)
+		dev_dbg(dev, "pipe %d : queue pop\n", usbhs_pipe_number(pipe));
+
+	ureq->req.status = status;
+	spin_unlock(usbhs_priv_to_lock(priv));
+	usb_gadget_giveback_request(&uep->ep, &ureq->req);
+	spin_lock(usbhs_priv_to_lock(priv));
+}
+
+static void usbhsg_queue_pop(struct usbhsg_uep *uep,
+			     struct usbhsg_request *ureq,
+			     int status)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	__usbhsg_queue_pop(uep, ureq, status);
+	usbhs_unlock(priv, flags);
+}
+
+static void usbhsg_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
+{
+	struct usbhs_pipe *pipe = pkt->pipe;
+	struct usbhsg_uep *uep = usbhsg_pipe_to_uep(pipe);
+	struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt);
+	unsigned long flags;
+
+	ureq->req.actual = pkt->actual;
+
+	usbhs_lock(priv, flags);
+	if (uep)
+		__usbhsg_queue_pop(uep, ureq, 0);
+	usbhs_unlock(priv, flags);
+}
+
+static void usbhsg_queue_push(struct usbhsg_uep *uep,
+			      struct usbhsg_request *ureq)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pkt *pkt = usbhsg_ureq_to_pkt(ureq);
+	struct usb_request *req = &ureq->req;
+
+	req->actual = 0;
+	req->status = -EINPROGRESS;
+	usbhs_pkt_push(pipe, pkt, usbhsg_queue_done,
+		       req->buf, req->length, req->zero, -1);
+	usbhs_pkt_start(pipe);
+
+	dev_dbg(dev, "pipe %d : queue push (%d)\n",
+		usbhs_pipe_number(pipe),
+		req->length);
+}
+
+/*
+ *		dma map/unmap
+ */
+static int usbhsg_dma_map_ctrl(struct device *dma_dev, struct usbhs_pkt *pkt,
+			       int map)
+{
+	struct usbhsg_request *ureq = usbhsg_pkt_to_ureq(pkt);
+	struct usb_request *req = &ureq->req;
+	struct usbhs_pipe *pipe = pkt->pipe;
+	enum dma_data_direction dir;
+	int ret = 0;
+
+	dir = usbhs_pipe_is_dir_host(pipe);
+
+	if (map) {
+		/* it can not use scatter/gather */
+		WARN_ON(req->num_sgs);
+
+		ret = usb_gadget_map_request_by_dev(dma_dev, req, dir);
+		if (ret < 0)
+			return ret;
+
+		pkt->dma = req->dma;
+	} else {
+		usb_gadget_unmap_request_by_dev(dma_dev, req, dir);
+	}
+
+	return ret;
+}
+
+/*
+ *		USB_TYPE_STANDARD / clear feature functions
+ */
+static int usbhsg_recip_handler_std_control_done(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
+
+	usbhs_dcp_control_transfer_done(pipe);
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv,
+						   struct usbhsg_uep *uep,
+						   struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+
+	if (!usbhsg_status_has(gpriv, USBHSG_STATUS_WEDGE)) {
+		usbhs_pipe_disable(pipe);
+		usbhs_pipe_sequence_data0(pipe);
+		usbhs_pipe_enable(pipe);
+	}
+
+	usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+
+	usbhs_pkt_start(pipe);
+
+	return 0;
+}
+
+static struct usbhsg_recip_handle req_clear_feature = {
+	.name		= "clear feature",
+	.device		= usbhsg_recip_handler_std_control_done,
+	.interface	= usbhsg_recip_handler_std_control_done,
+	.endpoint	= usbhsg_recip_handler_std_clear_endpoint,
+};
+
+/*
+ *		USB_TYPE_STANDARD / set feature functions
+ */
+static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	switch (le16_to_cpu(ctrl->wValue)) {
+	case USB_DEVICE_TEST_MODE:
+		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+		udelay(100);
+		usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex) >> 8);
+		break;
+	default:
+		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+		break;
+	}
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+
+	usbhs_pipe_stall(pipe);
+
+	usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+
+	return 0;
+}
+
+static struct usbhsg_recip_handle req_set_feature = {
+	.name		= "set feature",
+	.device		= usbhsg_recip_handler_std_set_device,
+	.interface	= usbhsg_recip_handler_std_control_done,
+	.endpoint	= usbhsg_recip_handler_std_set_endpoint,
+};
+
+/*
+ *		USB_TYPE_STANDARD / get status functions
+ */
+static void __usbhsg_recip_send_complete(struct usb_ep *ep,
+					 struct usb_request *req)
+{
+	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+
+	/* free allocated recip-buffer/usb_request */
+	kfree(ureq->pkt.buf);
+	usb_ep_free_request(ep, req);
+}
+
+static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv,
+				       unsigned short status)
+{
+	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usb_request *req;
+	__le16 *buf;
+
+	/* alloc new usb_request for recip */
+	req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC);
+	if (!req) {
+		dev_err(dev, "recip request allocation fail\n");
+		return;
+	}
+
+	/* alloc recip data buffer */
+	buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
+	if (!buf) {
+		usb_ep_free_request(&dcp->ep, req);
+		return;
+	}
+
+	/* recip data is status */
+	*buf = cpu_to_le16(status);
+
+	/* allocated usb_request/buffer will be freed */
+	req->complete	= __usbhsg_recip_send_complete;
+	req->buf	= buf;
+	req->length	= sizeof(*buf);
+	req->zero	= 0;
+
+	/* push packet */
+	pipe->handler = &usbhs_fifo_pio_push_handler;
+	usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req));
+}
+
+static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv,
+					       struct usbhsg_uep *uep,
+					       struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	unsigned short status = 0;
+
+	if (usbhsg_status_has(gpriv, USBHSG_STATUS_SELF_POWERED))
+		status = 1 << USB_DEVICE_SELF_POWERED;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv,
+						  struct usbhsg_uep *uep,
+						  struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	unsigned short status = 0;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	unsigned short status = 0;
+
+	if (usbhs_pipe_is_stall(pipe))
+		status = 1 << USB_ENDPOINT_HALT;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+static struct usbhsg_recip_handle req_get_status = {
+	.name		= "get status",
+	.device		= usbhsg_recip_handler_std_get_device,
+	.interface	= usbhsg_recip_handler_std_get_interface,
+	.endpoint	= usbhsg_recip_handler_std_get_endpoint,
+};
+
+/*
+ *		USB_TYPE handler
+ */
+static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
+				   struct usbhsg_recip_handle *handler,
+				   struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usbhsg_uep *uep;
+	struct usbhs_pipe *pipe;
+	int recip = ctrl->bRequestType & USB_RECIP_MASK;
+	int nth = le16_to_cpu(ctrl->wIndex) & USB_ENDPOINT_NUMBER_MASK;
+	int ret = 0;
+	int (*func)(struct usbhs_priv *priv, struct usbhsg_uep *uep,
+		    struct usb_ctrlrequest *ctrl);
+	char *msg;
+
+	uep = usbhsg_gpriv_to_nth_uep(gpriv, nth);
+	pipe = usbhsg_uep_to_pipe(uep);
+	if (!pipe) {
+		dev_err(dev, "wrong recip request\n");
+		return -EINVAL;
+	}
+
+	switch (recip) {
+	case USB_RECIP_DEVICE:
+		msg	= "DEVICE";
+		func	= handler->device;
+		break;
+	case USB_RECIP_INTERFACE:
+		msg	= "INTERFACE";
+		func	= handler->interface;
+		break;
+	case USB_RECIP_ENDPOINT:
+		msg	= "ENDPOINT";
+		func	= handler->endpoint;
+		break;
+	default:
+		dev_warn(dev, "unsupported RECIP(%d)\n", recip);
+		func = NULL;
+		ret = -EINVAL;
+	}
+
+	if (func) {
+		dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg);
+		ret = func(priv, uep, ctrl);
+	}
+
+	return ret;
+}
+
+/*
+ *		irq functions
+ *
+ * it will be called from usbhs_interrupt
+ */
+static int usbhsg_irq_dev_state(struct usbhs_priv *priv,
+				struct usbhs_irq_state *irq_state)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	int state = usbhs_status_get_device_state(irq_state);
+
+	gpriv->gadget.speed = usbhs_bus_get_speed(priv);
+
+	dev_dbg(dev, "state = %x : speed : %d\n", state, gpriv->gadget.speed);
+
+	if (gpriv->gadget.speed != USB_SPEED_UNKNOWN &&
+	    (state & SUSPENDED_STATE)) {
+		if (gpriv->driver && gpriv->driver->suspend)
+			gpriv->driver->suspend(&gpriv->gadget);
+		usb_gadget_set_state(&gpriv->gadget, USB_STATE_SUSPENDED);
+	}
+
+	return 0;
+}
+
+static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv,
+				 struct usbhs_irq_state *irq_state)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usb_ctrlrequest ctrl;
+	struct usbhsg_recip_handle *recip_handler = NULL;
+	int stage = usbhs_status_get_ctrl_stage(irq_state);
+	int ret = 0;
+
+	dev_dbg(dev, "stage = %d\n", stage);
+
+	/*
+	 * see Manual
+	 *
+	 *  "Operation"
+	 *  - "Interrupt Function"
+	 *    - "Control Transfer Stage Transition Interrupt"
+	 *      - Fig. "Control Transfer Stage Transitions"
+	 */
+
+	switch (stage) {
+	case READ_DATA_STAGE:
+		pipe->handler = &usbhs_fifo_pio_push_handler;
+		break;
+	case WRITE_DATA_STAGE:
+		pipe->handler = &usbhs_fifo_pio_pop_handler;
+		break;
+	case NODATA_STATUS_STAGE:
+		pipe->handler = &usbhs_ctrl_stage_end_handler;
+		break;
+	case READ_STATUS_STAGE:
+	case WRITE_STATUS_STAGE:
+		usbhs_dcp_control_transfer_done(pipe);
+		fallthrough;
+	default:
+		return ret;
+	}
+
+	/*
+	 * get usb request
+	 */
+	usbhs_usbreq_get_val(priv, &ctrl);
+
+	switch (ctrl.bRequestType & USB_TYPE_MASK) {
+	case USB_TYPE_STANDARD:
+		switch (ctrl.bRequest) {
+		case USB_REQ_CLEAR_FEATURE:
+			recip_handler = &req_clear_feature;
+			break;
+		case USB_REQ_SET_FEATURE:
+			recip_handler = &req_set_feature;
+			break;
+		case USB_REQ_GET_STATUS:
+			recip_handler = &req_get_status;
+			break;
+		}
+	}
+
+	/*
+	 * setup stage / run recip
+	 */
+	if (recip_handler)
+		ret = usbhsg_recip_run_handle(priv, recip_handler, &ctrl);
+	else
+		ret = gpriv->driver->setup(&gpriv->gadget, &ctrl);
+
+	if (ret < 0)
+		usbhs_pipe_stall(pipe);
+
+	return ret;
+}
+
+/*
+ *
+ *		usb_dcp_ops
+ *
+ */
+static int usbhsg_pipe_disable(struct usbhsg_uep *uep)
+{
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhs_pkt *pkt;
+
+	while (1) {
+		pkt = usbhs_pkt_pop(pipe, NULL);
+		if (!pkt)
+			break;
+
+		usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ESHUTDOWN);
+	}
+
+	usbhs_pipe_disable(pipe);
+
+	return 0;
+}
+
+/*
+ *
+ *		usb_ep_ops
+ *
+ */
+static int usbhsg_ep_enable(struct usb_ep *ep,
+			 const struct usb_endpoint_descriptor *desc)
+{
+	struct usbhsg_uep *uep   = usbhsg_ep_to_uep(ep);
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	struct usbhs_pipe *pipe;
+	int ret = -EIO;
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+
+	/*
+	 * if it already have pipe,
+	 * nothing to do
+	 */
+	if (uep->pipe) {
+		usbhs_pipe_clear(uep->pipe);
+		usbhs_pipe_sequence_data0(uep->pipe);
+		ret = 0;
+		goto usbhsg_ep_enable_end;
+	}
+
+	pipe = usbhs_pipe_malloc(priv,
+				 usb_endpoint_type(desc),
+				 usb_endpoint_dir_in(desc));
+	if (pipe) {
+		uep->pipe		= pipe;
+		pipe->mod_private	= uep;
+
+		/* set epnum / maxp */
+		usbhs_pipe_config_update(pipe, 0,
+					 usb_endpoint_num(desc),
+					 usb_endpoint_maxp(desc));
+
+		/*
+		 * usbhs_fifo_dma_push/pop_handler try to
+		 * use dmaengine if possible.
+		 * It will use pio handler if impossible.
+		 */
+		if (usb_endpoint_dir_in(desc)) {
+			pipe->handler = &usbhs_fifo_dma_push_handler;
+		} else {
+			pipe->handler = &usbhs_fifo_dma_pop_handler;
+			usbhs_xxxsts_clear(priv, BRDYSTS,
+					   usbhs_pipe_number(pipe));
+		}
+
+		ret = 0;
+	}
+
+usbhsg_ep_enable_end:
+	usbhs_unlock(priv, flags);
+
+	return ret;
+}
+
+static int usbhsg_ep_disable(struct usb_ep *ep)
+{
+	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
+
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
+	if (!pipe)
+		goto out;
+
+	usbhsg_pipe_disable(uep);
+	usbhs_pipe_free(pipe);
+
+	uep->pipe->mod_private	= NULL;
+	uep->pipe		= NULL;
+
+out:
+	spin_unlock_irqrestore(&uep->lock, flags);
+
+	return 0;
+}
+
+static struct usb_request *usbhsg_ep_alloc_request(struct usb_ep *ep,
+						   gfp_t gfp_flags)
+{
+	struct usbhsg_request *ureq;
+
+	ureq = kzalloc(sizeof *ureq, gfp_flags);
+	if (!ureq)
+		return NULL;
+
+	usbhs_pkt_init(usbhsg_ureq_to_pkt(ureq));
+
+	return &ureq->req;
+}
+
+static void usbhsg_ep_free_request(struct usb_ep *ep,
+				   struct usb_request *req)
+{
+	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+
+	WARN_ON(!list_empty(&ureq->pkt.node));
+	kfree(ureq);
+}
+
+static int usbhsg_ep_queue(struct usb_ep *ep, struct usb_request *req,
+			  gfp_t gfp_flags)
+{
+	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+
+	/* param check */
+	if (usbhsg_is_not_connected(gpriv)	||
+	    unlikely(!gpriv->driver)		||
+	    unlikely(!pipe))
+		return -ESHUTDOWN;
+
+	usbhsg_queue_push(uep, ureq);
+
+	return 0;
+}
+
+static int usbhsg_ep_dequeue(struct usb_ep *ep, struct usb_request *req)
+{
+	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
+	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+	struct usbhs_pipe *pipe;
+	unsigned long flags;
+
+	spin_lock_irqsave(&uep->lock, flags);
+	pipe = usbhsg_uep_to_pipe(uep);
+	if (pipe)
+		usbhs_pkt_pop(pipe, usbhsg_ureq_to_pkt(ureq));
+
+	/*
+	 * To dequeue a request, this driver should call the usbhsg_queue_pop()
+	 * even if the pipe is NULL.
+	 */
+	usbhsg_queue_pop(uep, ureq, -ECONNRESET);
+	spin_unlock_irqrestore(&uep->lock, flags);
+
+	return 0;
+}
+
+static int __usbhsg_ep_set_halt_wedge(struct usb_ep *ep, int halt, int wedge)
+{
+	struct usbhsg_uep *uep = usbhsg_ep_to_uep(ep);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	unsigned long flags;
+	int ret = 0;
+
+	dev_dbg(dev, "set halt %d (pipe %d)\n",
+		halt, usbhs_pipe_number(pipe));
+
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	/*
+	 * According to usb_ep_set_halt()'s description, this function should
+	 * return -EAGAIN if the IN endpoint has any queue or data. Note
+	 * that the usbhs_pipe_is_dir_in() returns false if the pipe is an
+	 * IN endpoint in the gadget mode.
+	 */
+	if (!usbhs_pipe_is_dir_in(pipe) && (__usbhsf_pkt_get(pipe) ||
+	    usbhs_pipe_contains_transmittable_data(pipe))) {
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	if (halt)
+		usbhs_pipe_stall(pipe);
+	else
+		usbhs_pipe_disable(pipe);
+
+	if (halt && wedge)
+		usbhsg_status_set(gpriv, USBHSG_STATUS_WEDGE);
+	else
+		usbhsg_status_clr(gpriv, USBHSG_STATUS_WEDGE);
+
+out:
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
+
+	return ret;
+}
+
+static int usbhsg_ep_set_halt(struct usb_ep *ep, int value)
+{
+	return __usbhsg_ep_set_halt_wedge(ep, value, 0);
+}
+
+static int usbhsg_ep_set_wedge(struct usb_ep *ep)
+{
+	return __usbhsg_ep_set_halt_wedge(ep, 1, 1);
+}
+
+static const struct usb_ep_ops usbhsg_ep_ops = {
+	.enable		= usbhsg_ep_enable,
+	.disable	= usbhsg_ep_disable,
+
+	.alloc_request	= usbhsg_ep_alloc_request,
+	.free_request	= usbhsg_ep_free_request,
+
+	.queue		= usbhsg_ep_queue,
+	.dequeue	= usbhsg_ep_dequeue,
+
+	.set_halt	= usbhsg_ep_set_halt,
+	.set_wedge	= usbhsg_ep_set_wedge,
+};
+
+/*
+ *		pullup control
+ */
+static int usbhsg_can_pullup(struct usbhs_priv *priv)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+	return gpriv->driver &&
+	       usbhsg_status_has(gpriv, USBHSG_STATUS_SOFT_CONNECT);
+}
+
+static void usbhsg_update_pullup(struct usbhs_priv *priv)
+{
+	if (usbhsg_can_pullup(priv))
+		usbhs_sys_function_pullup(priv, 1);
+	else
+		usbhs_sys_function_pullup(priv, 0);
+}
+
+/*
+ *		usb module start/end
+ */
+static int usbhsg_try_start(struct usbhs_priv *priv, u32 status)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+	struct device *dev = usbhs_priv_to_dev(priv);
+	unsigned long flags;
+	int ret = 0;
+
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	usbhsg_status_set(gpriv, status);
+	if (!(usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
+	      usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD)))
+		ret = -1; /* not ready */
+
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ********************/
+
+	if (ret < 0)
+		return 0; /* not ready is not error */
+
+	/*
+	 * enable interrupt and systems if ready
+	 */
+	dev_dbg(dev, "start gadget\n");
+
+	/*
+	 * pipe initialize and enable DCP
+	 */
+	usbhs_fifo_init(priv);
+	usbhs_pipe_init(priv,
+			usbhsg_dma_map_ctrl);
+
+	/* dcp init instead of usbhsg_ep_enable() */
+	dcp->pipe		= usbhs_dcp_malloc(priv);
+	dcp->pipe->mod_private	= dcp;
+	usbhs_pipe_config_update(dcp->pipe, 0, 0, 64);
+
+	/*
+	 * system config enble
+	 * - HI speed
+	 * - function
+	 * - usb module
+	 */
+	usbhs_sys_function_ctrl(priv, 1);
+	usbhsg_update_pullup(priv);
+
+	/*
+	 * enable irq callback
+	 */
+	mod->irq_dev_state	= usbhsg_irq_dev_state;
+	mod->irq_ctrl_stage	= usbhsg_irq_ctrl_stage;
+	usbhs_irq_callback_update(priv, mod);
+
+	return 0;
+}
+
+static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+	struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+	struct usbhsg_uep *uep;
+	struct device *dev = usbhs_priv_to_dev(priv);
+	unsigned long flags;
+	int ret = 0, i;
+
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	usbhsg_status_clr(gpriv, status);
+	if (!usbhsg_status_has(gpriv, USBHSG_STATUS_STARTED) &&
+	    !usbhsg_status_has(gpriv, USBHSG_STATUS_REGISTERD))
+		ret = -1; /* already done */
+
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ********************/
+
+	if (ret < 0)
+		return 0; /* already done is not error */
+
+	/*
+	 * disable interrupt and systems if 1st try
+	 */
+	usbhs_fifo_quit(priv);
+
+	/* disable all irq */
+	mod->irq_dev_state	= NULL;
+	mod->irq_ctrl_stage	= NULL;
+	usbhs_irq_callback_update(priv, mod);
+
+	gpriv->gadget.speed = USB_SPEED_UNKNOWN;
+
+	/* disable sys */
+	usbhs_sys_set_test_mode(priv, 0);
+	usbhs_sys_function_ctrl(priv, 0);
+
+	/* disable all eps */
+	usbhsg_for_each_uep_with_dcp(uep, gpriv, i)
+		usbhsg_ep_disable(&uep->ep);
+
+	dev_dbg(dev, "stop gadget\n");
+
+	return 0;
+}
+
+/*
+ * VBUS provided by the PHY
+ */
+static int usbhsm_phy_get_vbus(struct platform_device *pdev)
+{
+	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+	return  gpriv->vbus_active;
+}
+
+static void usbhs_mod_phy_mode(struct usbhs_priv *priv)
+{
+	struct usbhs_mod_info *info = &priv->mod_info;
+
+	info->irq_vbus = NULL;
+	info->get_vbus = usbhsm_phy_get_vbus;
+
+	usbhs_irq_callback_update(priv, NULL);
+}
+
+/*
+ *
+ *		linux usb function
+ *
+ */
+static int usbhsg_gadget_start(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	struct device *dev = usbhs_priv_to_dev(priv);
+	int ret;
+
+	if (!driver		||
+	    !driver->setup	||
+	    driver->max_speed < USB_SPEED_FULL)
+		return -EINVAL;
+
+	/* connect to bus through transceiver */
+	if (!IS_ERR_OR_NULL(gpriv->transceiver)) {
+		ret = otg_set_peripheral(gpriv->transceiver->otg,
+					&gpriv->gadget);
+		if (ret) {
+			dev_err(dev, "%s: can't bind to transceiver\n",
+				gpriv->gadget.name);
+			return ret;
+		}
+
+		/* get vbus using phy versions */
+		usbhs_mod_phy_mode(priv);
+	}
+
+	/* first hook up the driver ... */
+	gpriv->driver = driver;
+
+	return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD);
+}
+
+static int usbhsg_gadget_stop(struct usb_gadget *gadget)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+
+	usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
+
+	if (!IS_ERR_OR_NULL(gpriv->transceiver))
+		otg_set_peripheral(gpriv->transceiver->otg, NULL);
+
+	gpriv->driver = NULL;
+
+	return 0;
+}
+
+/*
+ *		usb gadget ops
+ */
+static int usbhsg_get_frame(struct usb_gadget *gadget)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+
+	return usbhs_frame_get_num(priv);
+}
+
+static int usbhsg_pullup(struct usb_gadget *gadget, int is_on)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	unsigned long flags;
+
+	usbhs_lock(priv, flags);
+	if (is_on)
+		usbhsg_status_set(gpriv, USBHSG_STATUS_SOFT_CONNECT);
+	else
+		usbhsg_status_clr(gpriv, USBHSG_STATUS_SOFT_CONNECT);
+	usbhsg_update_pullup(priv);
+	usbhs_unlock(priv, flags);
+
+	return 0;
+}
+
+static int usbhsg_set_selfpowered(struct usb_gadget *gadget, int is_self)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+
+	if (is_self)
+		usbhsg_status_set(gpriv, USBHSG_STATUS_SELF_POWERED);
+	else
+		usbhsg_status_clr(gpriv, USBHSG_STATUS_SELF_POWERED);
+
+	gadget->is_selfpowered = (is_self != 0);
+
+	return 0;
+}
+
+static int usbhsg_vbus_session(struct usb_gadget *gadget, int is_active)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget);
+	struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv);
+	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
+
+	gpriv->vbus_active = !!is_active;
+
+	usbhsc_schedule_notify_hotplug(pdev);
+
+	return 0;
+}
+
+static const struct usb_gadget_ops usbhsg_gadget_ops = {
+	.get_frame		= usbhsg_get_frame,
+	.set_selfpowered	= usbhsg_set_selfpowered,
+	.udc_start		= usbhsg_gadget_start,
+	.udc_stop		= usbhsg_gadget_stop,
+	.pullup			= usbhsg_pullup,
+	.vbus_session		= usbhsg_vbus_session,
+};
+
+static int usbhsg_start(struct usbhs_priv *priv)
+{
+	return usbhsg_try_start(priv, USBHSG_STATUS_STARTED);
+}
+
+static int usbhsg_stop(struct usbhs_priv *priv)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+	/* cable disconnect */
+	if (gpriv->driver &&
+	    gpriv->driver->disconnect)
+		gpriv->driver->disconnect(&gpriv->gadget);
+
+	return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED);
+}
+
+int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
+{
+	struct usbhsg_gpriv *gpriv;
+	struct usbhsg_uep *uep;
+	struct device *dev = usbhs_priv_to_dev(priv);
+	struct renesas_usbhs_driver_pipe_config *pipe_configs =
+					usbhs_get_dparam(priv, pipe_configs);
+	int pipe_size = usbhs_get_dparam(priv, pipe_size);
+	int i;
+	int ret;
+
+	gpriv = kzalloc(sizeof(struct usbhsg_gpriv), GFP_KERNEL);
+	if (!gpriv)
+		return -ENOMEM;
+
+	uep = kcalloc(pipe_size, sizeof(struct usbhsg_uep), GFP_KERNEL);
+	if (!uep) {
+		ret = -ENOMEM;
+		goto usbhs_mod_gadget_probe_err_gpriv;
+	}
+
+	gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
+	dev_info(dev, "%stransceiver found\n",
+		 !IS_ERR(gpriv->transceiver) ? "" : "no ");
+
+	/*
+	 * CAUTION
+	 *
+	 * There is no guarantee that it is possible to access usb module here.
+	 * Don't accesses to it.
+	 * The accesse will be enable after "usbhsg_start"
+	 */
+
+	/*
+	 * register itself
+	 */
+	usbhs_mod_register(priv, &gpriv->mod, USBHS_GADGET);
+
+	/* init gpriv */
+	gpriv->mod.name		= "gadget";
+	gpriv->mod.start	= usbhsg_start;
+	gpriv->mod.stop		= usbhsg_stop;
+	gpriv->uep		= uep;
+	gpriv->uep_size		= pipe_size;
+	usbhsg_status_init(gpriv);
+
+	/*
+	 * init gadget
+	 */
+	gpriv->gadget.dev.parent	= dev;
+	gpriv->gadget.name		= "renesas_usbhs_udc";
+	gpriv->gadget.ops		= &usbhsg_gadget_ops;
+	gpriv->gadget.max_speed		= USB_SPEED_HIGH;
+	gpriv->gadget.quirk_avoids_skb_reserve = usbhs_get_dparam(priv,
+								has_usb_dmac);
+
+	INIT_LIST_HEAD(&gpriv->gadget.ep_list);
+
+	/*
+	 * init usb_ep
+	 */
+	usbhsg_for_each_uep_with_dcp(uep, gpriv, i) {
+		uep->gpriv	= gpriv;
+		uep->pipe	= NULL;
+		snprintf(uep->ep_name, EP_NAME_SIZE, "ep%d", i);
+
+		uep->ep.name		= uep->ep_name;
+		uep->ep.ops		= &usbhsg_ep_ops;
+		INIT_LIST_HEAD(&uep->ep.ep_list);
+		spin_lock_init(&uep->lock);
+
+		/* init DCP */
+		if (usbhsg_is_dcp(uep)) {
+			gpriv->gadget.ep0 = &uep->ep;
+			usb_ep_set_maxpacket_limit(&uep->ep, 64);
+			uep->ep.caps.type_control = true;
+		} else {
+			/* init normal pipe */
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_ISOC)
+				uep->ep.caps.type_iso = true;
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_BULK)
+				uep->ep.caps.type_bulk = true;
+			if (pipe_configs[i].type == USB_ENDPOINT_XFER_INT)
+				uep->ep.caps.type_int = true;
+			usb_ep_set_maxpacket_limit(&uep->ep,
+						   pipe_configs[i].bufsize);
+			list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
+		}
+		uep->ep.caps.dir_in = true;
+		uep->ep.caps.dir_out = true;
+	}
+
+	ret = usb_add_gadget_udc(dev, &gpriv->gadget);
+	if (ret)
+		goto err_add_udc;
+
+
+	dev_info(dev, "gadget probed\n");
+
+	return 0;
+
+err_add_udc:
+	kfree(gpriv->uep);
+
+usbhs_mod_gadget_probe_err_gpriv:
+	kfree(gpriv);
+
+	return ret;
+}
+
+void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_priv_to_gpriv(priv);
+
+	usb_del_gadget_udc(&gpriv->gadget);
+
+	kfree(gpriv->uep);
+	kfree(gpriv);
+}