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, 408 insertions, 0 deletions

diff --git a/drivers/input/joystick/psxpad-spi.c b/drivers/input/joystick/psxpad-spi.c
new file mode 100644
index 000000000..de734a927
--- /dev/null
+++ b/drivers/input/joystick/psxpad-spi.c
@@ -0,0 +1,408 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PlayStation 1/2 joypads via SPI interface Driver
+ *
+ * Copyright (C) 2017 Tomohiro Yoshidomi <sylph23k@gmail.com>
+ *
+ * PlayStation 1/2 joypad's plug (not socket)
+ *  123 456 789
+ * (...|...|...)
+ *
+ * 1: DAT -> MISO (pullup with 1k owm to 3.3V)
+ * 2: CMD -> MOSI
+ * 3: 9V (for motor, if not use N.C.)
+ * 4: GND
+ * 5: 3.3V
+ * 6: Attention -> CS(SS)
+ * 7: SCK -> SCK
+ * 8: N.C.
+ * 9: ACK -> N.C.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+
+#define REVERSE_BIT(x) ((((x) & 0x80) >> 7) | (((x) & 0x40) >> 5) | \
+	(((x) & 0x20) >> 3) | (((x) & 0x10) >> 1) | (((x) & 0x08) << 1) | \
+	(((x) & 0x04) << 3) | (((x) & 0x02) << 5) | (((x) & 0x01) << 7))
+
+/* PlayStation 1/2 joypad command and response are LSBFIRST. */
+
+/*
+ *	0x01, 0x42, 0x00, 0x00, 0x00,
+ *	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ *	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ */
+static const u8 PSX_CMD_POLL[] = {
+	0x80, 0x42, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+#ifdef CONFIG_JOYSTICK_PSXPAD_SPI_FF
+/*	0x01, 0x43, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 */
+static const u8 PSX_CMD_ENTER_CFG[] = {
+	0x80, 0xC2, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+/*	0x01, 0x43, 0x00, 0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A */
+static const u8 PSX_CMD_EXIT_CFG[] = {
+	0x80, 0xC2, 0x00, 0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A
+};
+/*	0x01, 0x4D, 0x00, 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF */
+static const u8 PSX_CMD_ENABLE_MOTOR[]	= {
+	0x80, 0xB2, 0x00, 0x00, 0x80, 0xFF, 0xFF, 0xFF, 0xFF
+};
+#endif /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
+
+struct psxpad {
+	struct spi_device *spi;
+	struct input_dev *idev;
+	char phys[0x20];
+	bool motor1enable;
+	bool motor2enable;
+	u8 motor1level;
+	u8 motor2level;
+	u8 sendbuf[0x20] ____cacheline_aligned;
+	u8 response[sizeof(PSX_CMD_POLL)] ____cacheline_aligned;
+};
+
+static int psxpad_command(struct psxpad *pad, const u8 sendcmdlen)
+{
+	struct spi_transfer xfers = {
+		.tx_buf		= pad->sendbuf,
+		.rx_buf		= pad->response,
+		.len		= sendcmdlen,
+	};
+	int err;
+
+	err = spi_sync_transfer(pad->spi, &xfers, 1);
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to SPI xfers mode: %d\n",
+			__func__, err);
+		return err;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_JOYSTICK_PSXPAD_SPI_FF
+static void psxpad_control_motor(struct psxpad *pad,
+				 bool motor1enable, bool motor2enable)
+{
+	int err;
+
+	pad->motor1enable = motor1enable;
+	pad->motor2enable = motor2enable;
+
+	memcpy(pad->sendbuf, PSX_CMD_ENTER_CFG, sizeof(PSX_CMD_ENTER_CFG));
+	err = psxpad_command(pad, sizeof(PSX_CMD_ENTER_CFG));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to enter config mode: %d\n",
+			__func__, err);
+		return;
+	}
+
+	memcpy(pad->sendbuf, PSX_CMD_ENABLE_MOTOR,
+	       sizeof(PSX_CMD_ENABLE_MOTOR));
+	pad->sendbuf[3] = pad->motor1enable ? 0x00 : 0xFF;
+	pad->sendbuf[4] = pad->motor2enable ? 0x80 : 0xFF;
+	err = psxpad_command(pad, sizeof(PSX_CMD_ENABLE_MOTOR));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to enable motor mode: %d\n",
+			__func__, err);
+		return;
+	}
+
+	memcpy(pad->sendbuf, PSX_CMD_EXIT_CFG, sizeof(PSX_CMD_EXIT_CFG));
+	err = psxpad_command(pad, sizeof(PSX_CMD_EXIT_CFG));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: failed to exit config mode: %d\n",
+			__func__, err);
+		return;
+	}
+}
+
+static void psxpad_set_motor_level(struct psxpad *pad,
+				   u8 motor1level, u8 motor2level)
+{
+	pad->motor1level = motor1level ? 0xFF : 0x00;
+	pad->motor2level = REVERSE_BIT(motor2level);
+}
+
+static int psxpad_spi_play_effect(struct input_dev *idev,
+				  void *data, struct ff_effect *effect)
+{
+	struct psxpad *pad = input_get_drvdata(idev);
+
+	switch (effect->type) {
+	case FF_RUMBLE:
+		psxpad_set_motor_level(pad,
+			(effect->u.rumble.weak_magnitude >> 8) & 0xFFU,
+			(effect->u.rumble.strong_magnitude >> 8) & 0xFFU);
+		break;
+	}
+
+	return 0;
+}
+
+static int psxpad_spi_init_ff(struct psxpad *pad)
+{
+	int err;
+
+	input_set_capability(pad->idev, EV_FF, FF_RUMBLE);
+
+	err = input_ff_create_memless(pad->idev, NULL, psxpad_spi_play_effect);
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"input_ff_create_memless() failed: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+#else	/* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
+
+static void psxpad_control_motor(struct psxpad *pad,
+				 bool motor1enable, bool motor2enable)
+{
+}
+
+static void psxpad_set_motor_level(struct psxpad *pad,
+				   u8 motor1level, u8 motor2level)
+{
+}
+
+static inline int psxpad_spi_init_ff(struct psxpad *pad)
+{
+	return 0;
+}
+#endif	/* CONFIG_JOYSTICK_PSXPAD_SPI_FF */
+
+static int psxpad_spi_poll_open(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+
+	pm_runtime_get_sync(&pad->spi->dev);
+
+	return 0;
+}
+
+static void psxpad_spi_poll_close(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+
+	pm_runtime_put_sync(&pad->spi->dev);
+}
+
+static void psxpad_spi_poll(struct input_dev *input)
+{
+	struct psxpad *pad = input_get_drvdata(input);
+	u8 b_rsp3, b_rsp4;
+	int err;
+
+	psxpad_control_motor(pad, true, true);
+
+	memcpy(pad->sendbuf, PSX_CMD_POLL, sizeof(PSX_CMD_POLL));
+	pad->sendbuf[3] = pad->motor1enable ? pad->motor1level : 0x00;
+	pad->sendbuf[4] = pad->motor2enable ? pad->motor2level : 0x00;
+	err = psxpad_command(pad, sizeof(PSX_CMD_POLL));
+	if (err) {
+		dev_err(&pad->spi->dev,
+			"%s: poll command failed mode: %d\n", __func__, err);
+		return;
+	}
+
+	switch (pad->response[1]) {
+	case 0xCE:	/* 0x73 : analog 1 */
+		/* button data is inverted */
+		b_rsp3 = ~pad->response[3];
+		b_rsp4 = ~pad->response[4];
+
+		input_report_abs(input, ABS_X, REVERSE_BIT(pad->response[7]));
+		input_report_abs(input, ABS_Y, REVERSE_BIT(pad->response[8]));
+		input_report_abs(input, ABS_RX, REVERSE_BIT(pad->response[5]));
+		input_report_abs(input, ABS_RY, REVERSE_BIT(pad->response[6]));
+		input_report_key(input, BTN_DPAD_UP, b_rsp3 & BIT(3));
+		input_report_key(input, BTN_DPAD_DOWN, b_rsp3 & BIT(1));
+		input_report_key(input, BTN_DPAD_LEFT, b_rsp3 & BIT(0));
+		input_report_key(input, BTN_DPAD_RIGHT, b_rsp3 & BIT(2));
+		input_report_key(input, BTN_X, b_rsp4 & BIT(3));
+		input_report_key(input, BTN_A, b_rsp4 & BIT(2));
+		input_report_key(input, BTN_B, b_rsp4 & BIT(1));
+		input_report_key(input, BTN_Y, b_rsp4 & BIT(0));
+		input_report_key(input, BTN_TL, b_rsp4 & BIT(5));
+		input_report_key(input, BTN_TR, b_rsp4 & BIT(4));
+		input_report_key(input, BTN_TL2, b_rsp4 & BIT(7));
+		input_report_key(input, BTN_TR2, b_rsp4 & BIT(6));
+		input_report_key(input, BTN_THUMBL, b_rsp3 & BIT(6));
+		input_report_key(input, BTN_THUMBR, b_rsp3 & BIT(5));
+		input_report_key(input, BTN_SELECT, b_rsp3 & BIT(7));
+		input_report_key(input, BTN_START, b_rsp3 & BIT(4));
+		break;
+
+	case 0x82:	/* 0x41 : digital */
+		/* button data is inverted */
+		b_rsp3 = ~pad->response[3];
+		b_rsp4 = ~pad->response[4];
+
+		input_report_abs(input, ABS_X, 0x80);
+		input_report_abs(input, ABS_Y, 0x80);
+		input_report_abs(input, ABS_RX, 0x80);
+		input_report_abs(input, ABS_RY, 0x80);
+		input_report_key(input, BTN_DPAD_UP, b_rsp3 & BIT(3));
+		input_report_key(input, BTN_DPAD_DOWN, b_rsp3 & BIT(1));
+		input_report_key(input, BTN_DPAD_LEFT, b_rsp3 & BIT(0));
+		input_report_key(input, BTN_DPAD_RIGHT, b_rsp3 & BIT(2));
+		input_report_key(input, BTN_X, b_rsp4 & BIT(3));
+		input_report_key(input, BTN_A, b_rsp4 & BIT(2));
+		input_report_key(input, BTN_B, b_rsp4 & BIT(1));
+		input_report_key(input, BTN_Y, b_rsp4 & BIT(0));
+		input_report_key(input, BTN_TL, b_rsp4 & BIT(5));
+		input_report_key(input, BTN_TR, b_rsp4 & BIT(4));
+		input_report_key(input, BTN_TL2, b_rsp4 & BIT(7));
+		input_report_key(input, BTN_TR2, b_rsp4 & BIT(6));
+		input_report_key(input, BTN_THUMBL, false);
+		input_report_key(input, BTN_THUMBR, false);
+		input_report_key(input, BTN_SELECT, b_rsp3 & BIT(7));
+		input_report_key(input, BTN_START, b_rsp3 & BIT(4));
+		break;
+	}
+
+	input_sync(input);
+}
+
+static int psxpad_spi_probe(struct spi_device *spi)
+{
+	struct psxpad *pad;
+	struct input_dev *idev;
+	int err;
+
+	pad = devm_kzalloc(&spi->dev, sizeof(struct psxpad), GFP_KERNEL);
+	if (!pad)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(&spi->dev);
+	if (!idev) {
+		dev_err(&spi->dev, "failed to allocate input device\n");
+		return -ENOMEM;
+	}
+
+	/* input poll device settings */
+	pad->idev = idev;
+	pad->spi = spi;
+
+	/* input device settings */
+	input_set_drvdata(idev, pad);
+
+	idev->name = "PlayStation 1/2 joypad";
+	snprintf(pad->phys, sizeof(pad->phys), "%s/input", dev_name(&spi->dev));
+	idev->id.bustype = BUS_SPI;
+
+	idev->open = psxpad_spi_poll_open;
+	idev->close = psxpad_spi_poll_close;
+
+	/* key/value map settings */
+	input_set_abs_params(idev, ABS_X, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_Y, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_RX, 0, 255, 0, 0);
+	input_set_abs_params(idev, ABS_RY, 0, 255, 0, 0);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_UP);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_DOWN);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_LEFT);
+	input_set_capability(idev, EV_KEY, BTN_DPAD_RIGHT);
+	input_set_capability(idev, EV_KEY, BTN_A);
+	input_set_capability(idev, EV_KEY, BTN_B);
+	input_set_capability(idev, EV_KEY, BTN_X);
+	input_set_capability(idev, EV_KEY, BTN_Y);
+	input_set_capability(idev, EV_KEY, BTN_TL);
+	input_set_capability(idev, EV_KEY, BTN_TR);
+	input_set_capability(idev, EV_KEY, BTN_TL2);
+	input_set_capability(idev, EV_KEY, BTN_TR2);
+	input_set_capability(idev, EV_KEY, BTN_THUMBL);
+	input_set_capability(idev, EV_KEY, BTN_THUMBR);
+	input_set_capability(idev, EV_KEY, BTN_SELECT);
+	input_set_capability(idev, EV_KEY, BTN_START);
+
+	err = psxpad_spi_init_ff(pad);
+	if (err)
+		return err;
+
+	/* SPI settings */
+	spi->mode = SPI_MODE_3;
+	spi->bits_per_word = 8;
+	/* (PlayStation 1/2 joypad might be possible works 250kHz/500kHz) */
+	spi->master->min_speed_hz = 125000;
+	spi->master->max_speed_hz = 125000;
+	spi_setup(spi);
+
+	/* pad settings */
+	psxpad_set_motor_level(pad, 0, 0);
+
+
+	err = input_setup_polling(idev, psxpad_spi_poll);
+	if (err) {
+		dev_err(&spi->dev, "failed to set up polling: %d\n", err);
+		return err;
+	}
+
+	/* poll interval is about 60fps */
+	input_set_poll_interval(idev, 16);
+	input_set_min_poll_interval(idev, 8);
+	input_set_max_poll_interval(idev, 32);
+
+	/* register input poll device */
+	err = input_register_device(idev);
+	if (err) {
+		dev_err(&spi->dev,
+			"failed to register input device: %d\n", err);
+		return err;
+	}
+
+	pm_runtime_enable(&spi->dev);
+
+	return 0;
+}
+
+static int psxpad_spi_suspend(struct device *dev)
+{
+	struct spi_device *spi = to_spi_device(dev);
+	struct psxpad *pad = spi_get_drvdata(spi);
+
+	psxpad_set_motor_level(pad, 0, 0);
+
+	return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(psxpad_spi_pm, psxpad_spi_suspend, NULL);
+
+static const struct spi_device_id psxpad_spi_id[] = {
+	{ "psxpad-spi", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, psxpad_spi_id);
+
+static struct spi_driver psxpad_spi_driver = {
+	.driver = {
+		.name = "psxpad-spi",
+		.pm = pm_sleep_ptr(&psxpad_spi_pm),
+	},
+	.id_table = psxpad_spi_id,
+	.probe   = psxpad_spi_probe,
+};
+
+module_spi_driver(psxpad_spi_driver);
+
+MODULE_AUTHOR("Tomohiro Yoshidomi <sylph23k@gmail.com>");
+MODULE_DESCRIPTION("PlayStation 1/2 joypads via SPI interface Driver");
+MODULE_LICENSE("GPL");