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, 650 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
new file mode 100644
index 000000000..758b66939
--- /dev/null
+++ b/drivers/input/touchscreen/mms114.c
@@ -0,0 +1,650 @@
+// SPDX-License-Identifier: GPL-2.0
+// Melfas MMS114/MMS136/MMS152 touchscreen device driver
+//
+// Copyright (c) 2012 Samsung Electronics Co., Ltd.
+// Author: Joonyoung Shim <jy0922.shim@samsung.com>
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/i2c.h>
+#include <linux/input/mt.h>
+#include <linux/input/touchscreen.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+/* Write only registers */
+#define MMS114_MODE_CONTROL		0x01
+#define MMS114_OPERATION_MODE_MASK	0xE
+#define MMS114_ACTIVE			BIT(1)
+
+#define MMS114_XY_RESOLUTION_H		0x02
+#define MMS114_X_RESOLUTION		0x03
+#define MMS114_Y_RESOLUTION		0x04
+#define MMS114_CONTACT_THRESHOLD	0x05
+#define MMS114_MOVING_THRESHOLD		0x06
+
+/* Read only registers */
+#define MMS114_PACKET_SIZE		0x0F
+#define MMS114_INFORMATION		0x10
+#define MMS114_TSP_REV			0xF0
+
+#define MMS152_FW_REV			0xE1
+#define MMS152_COMPAT_GROUP		0xF2
+
+/* Minimum delay time is 50us between stop and start signal of i2c */
+#define MMS114_I2C_DELAY		50
+
+/* 200ms needs after power on */
+#define MMS114_POWERON_DELAY		200
+
+/* Touchscreen absolute values */
+#define MMS114_MAX_AREA			0xff
+
+#define MMS114_MAX_TOUCH		10
+#define MMS114_EVENT_SIZE		8
+#define MMS136_EVENT_SIZE		6
+
+/* Touch type */
+#define MMS114_TYPE_NONE		0
+#define MMS114_TYPE_TOUCHSCREEN		1
+#define MMS114_TYPE_TOUCHKEY		2
+
+enum mms_type {
+	TYPE_MMS114	= 114,
+	TYPE_MMS134S	= 134,
+	TYPE_MMS136	= 136,
+	TYPE_MMS152	= 152,
+	TYPE_MMS345L	= 345,
+};
+
+struct mms114_data {
+	struct i2c_client	*client;
+	struct input_dev	*input_dev;
+	struct regulator	*core_reg;
+	struct regulator	*io_reg;
+	struct touchscreen_properties props;
+	enum mms_type		type;
+	unsigned int		contact_threshold;
+	unsigned int		moving_threshold;
+
+	/* Use cache data for mode control register(write only) */
+	u8			cache_mode_control;
+};
+
+struct mms114_touch {
+	u8 id:4, reserved_bit4:1, type:2, pressed:1;
+	u8 x_hi:4, y_hi:4;
+	u8 x_lo;
+	u8 y_lo;
+	u8 width;
+	u8 strength;
+	u8 reserved[2];
+} __packed;
+
+static int __mms114_read_reg(struct mms114_data *data, unsigned int reg,
+			     unsigned int len, u8 *val)
+{
+	struct i2c_client *client = data->client;
+	struct i2c_msg xfer[2];
+	u8 buf = reg & 0xff;
+	int error;
+
+	if (reg <= MMS114_MODE_CONTROL && reg + len > MMS114_MODE_CONTROL)
+		BUG();
+
+	/* Write register */
+	xfer[0].addr = client->addr;
+	xfer[0].flags = client->flags & I2C_M_TEN;
+	xfer[0].len = 1;
+	xfer[0].buf = &buf;
+
+	/* Read data */
+	xfer[1].addr = client->addr;
+	xfer[1].flags = (client->flags & I2C_M_TEN) | I2C_M_RD;
+	xfer[1].len = len;
+	xfer[1].buf = val;
+
+	error = i2c_transfer(client->adapter, xfer, 2);
+	if (error != 2) {
+		dev_err(&client->dev,
+			"%s: i2c transfer failed (%d)\n", __func__, error);
+		return error < 0 ? error : -EIO;
+	}
+	udelay(MMS114_I2C_DELAY);
+
+	return 0;
+}
+
+static int mms114_read_reg(struct mms114_data *data, unsigned int reg)
+{
+	u8 val;
+	int error;
+
+	if (reg == MMS114_MODE_CONTROL)
+		return data->cache_mode_control;
+
+	error = __mms114_read_reg(data, reg, 1, &val);
+	return error < 0 ? error : val;
+}
+
+static int mms114_write_reg(struct mms114_data *data, unsigned int reg,
+			    unsigned int val)
+{
+	struct i2c_client *client = data->client;
+	u8 buf[2];
+	int error;
+
+	buf[0] = reg & 0xff;
+	buf[1] = val & 0xff;
+
+	error = i2c_master_send(client, buf, 2);
+	if (error != 2) {
+		dev_err(&client->dev,
+			"%s: i2c send failed (%d)\n", __func__, error);
+		return error < 0 ? error : -EIO;
+	}
+	udelay(MMS114_I2C_DELAY);
+
+	if (reg == MMS114_MODE_CONTROL)
+		data->cache_mode_control = val;
+
+	return 0;
+}
+
+static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *touch)
+{
+	struct i2c_client *client = data->client;
+	struct input_dev *input_dev = data->input_dev;
+	unsigned int id;
+	unsigned int x;
+	unsigned int y;
+
+	if (touch->id > MMS114_MAX_TOUCH) {
+		dev_err(&client->dev, "Wrong touch id (%d)\n", touch->id);
+		return;
+	}
+
+	if (touch->type != MMS114_TYPE_TOUCHSCREEN) {
+		dev_err(&client->dev, "Wrong touch type (%d)\n", touch->type);
+		return;
+	}
+
+	id = touch->id - 1;
+	x = touch->x_lo | touch->x_hi << 8;
+	y = touch->y_lo | touch->y_hi << 8;
+
+	dev_dbg(&client->dev,
+		"id: %d, type: %d, pressed: %d, x: %d, y: %d, width: %d, strength: %d\n",
+		id, touch->type, touch->pressed,
+		x, y, touch->width, touch->strength);
+
+	input_mt_slot(input_dev, id);
+	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, touch->pressed);
+
+	if (touch->pressed) {
+		touchscreen_report_pos(input_dev, &data->props, x, y, true);
+		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, touch->width);
+		input_report_abs(input_dev, ABS_MT_PRESSURE, touch->strength);
+	}
+}
+
+static irqreturn_t mms114_interrupt(int irq, void *dev_id)
+{
+	struct mms114_data *data = dev_id;
+	struct input_dev *input_dev = data->input_dev;
+	struct mms114_touch touch[MMS114_MAX_TOUCH];
+	int packet_size;
+	int touch_size;
+	int index;
+	int error;
+
+	mutex_lock(&input_dev->mutex);
+	if (!input_device_enabled(input_dev)) {
+		mutex_unlock(&input_dev->mutex);
+		goto out;
+	}
+	mutex_unlock(&input_dev->mutex);
+
+	packet_size = mms114_read_reg(data, MMS114_PACKET_SIZE);
+	if (packet_size <= 0)
+		goto out;
+
+	/* MMS136 has slightly different event size */
+	if (data->type == TYPE_MMS134S || data->type == TYPE_MMS136)
+		touch_size = packet_size / MMS136_EVENT_SIZE;
+	else
+		touch_size = packet_size / MMS114_EVENT_SIZE;
+
+	error = __mms114_read_reg(data, MMS114_INFORMATION, packet_size,
+			(u8 *)touch);
+	if (error < 0)
+		goto out;
+
+	for (index = 0; index < touch_size; index++)
+		mms114_process_mt(data, touch + index);
+
+	input_mt_report_pointer_emulation(data->input_dev, true);
+	input_sync(data->input_dev);
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int mms114_set_active(struct mms114_data *data, bool active)
+{
+	int val;
+
+	val = mms114_read_reg(data, MMS114_MODE_CONTROL);
+	if (val < 0)
+		return val;
+
+	val &= ~MMS114_OPERATION_MODE_MASK;
+
+	/* If active is false, sleep mode */
+	if (active)
+		val |= MMS114_ACTIVE;
+
+	return mms114_write_reg(data, MMS114_MODE_CONTROL, val);
+}
+
+static int mms114_get_version(struct mms114_data *data)
+{
+	struct device *dev = &data->client->dev;
+	u8 buf[6];
+	int group;
+	int error;
+
+	switch (data->type) {
+	case TYPE_MMS345L:
+		error = __mms114_read_reg(data, MMS152_FW_REV, 3, buf);
+		if (error)
+			return error;
+
+		dev_info(dev, "TSP FW Rev: bootloader 0x%x / core 0x%x / config 0x%x\n",
+			 buf[0], buf[1], buf[2]);
+		break;
+
+	case TYPE_MMS152:
+		error = __mms114_read_reg(data, MMS152_FW_REV, 3, buf);
+		if (error)
+			return error;
+
+		group = i2c_smbus_read_byte_data(data->client,
+						  MMS152_COMPAT_GROUP);
+		if (group < 0)
+			return group;
+
+		dev_info(dev, "TSP FW Rev: bootloader 0x%x / core 0x%x / config 0x%x, Compat group: %c\n",
+			 buf[0], buf[1], buf[2], group);
+		break;
+
+	case TYPE_MMS114:
+	case TYPE_MMS134S:
+	case TYPE_MMS136:
+		error = __mms114_read_reg(data, MMS114_TSP_REV, 6, buf);
+		if (error)
+			return error;
+
+		dev_info(dev, "TSP Rev: 0x%x, HW Rev: 0x%x, Firmware Ver: 0x%x\n",
+			 buf[0], buf[1], buf[3]);
+		break;
+	}
+
+	return 0;
+}
+
+static int mms114_setup_regs(struct mms114_data *data)
+{
+	const struct touchscreen_properties *props = &data->props;
+	int val;
+	int error;
+
+	error = mms114_get_version(data);
+	if (error < 0)
+		return error;
+
+	/* MMS114, MMS134S and MMS136 have configuration and power on registers */
+	if (data->type != TYPE_MMS114 && data->type != TYPE_MMS134S &&
+	    data->type != TYPE_MMS136)
+		return 0;
+
+	error = mms114_set_active(data, true);
+	if (error < 0)
+		return error;
+
+	val = (props->max_x >> 8) & 0xf;
+	val |= ((props->max_y >> 8) & 0xf) << 4;
+	error = mms114_write_reg(data, MMS114_XY_RESOLUTION_H, val);
+	if (error < 0)
+		return error;
+
+	val = props->max_x & 0xff;
+	error = mms114_write_reg(data, MMS114_X_RESOLUTION, val);
+	if (error < 0)
+		return error;
+
+	val = props->max_x & 0xff;
+	error = mms114_write_reg(data, MMS114_Y_RESOLUTION, val);
+	if (error < 0)
+		return error;
+
+	if (data->contact_threshold) {
+		error = mms114_write_reg(data, MMS114_CONTACT_THRESHOLD,
+				data->contact_threshold);
+		if (error < 0)
+			return error;
+	}
+
+	if (data->moving_threshold) {
+		error = mms114_write_reg(data, MMS114_MOVING_THRESHOLD,
+				data->moving_threshold);
+		if (error < 0)
+			return error;
+	}
+
+	return 0;
+}
+
+static int mms114_start(struct mms114_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+
+	error = regulator_enable(data->core_reg);
+	if (error) {
+		dev_err(&client->dev, "Failed to enable avdd: %d\n", error);
+		return error;
+	}
+
+	error = regulator_enable(data->io_reg);
+	if (error) {
+		dev_err(&client->dev, "Failed to enable vdd: %d\n", error);
+		regulator_disable(data->core_reg);
+		return error;
+	}
+
+	msleep(MMS114_POWERON_DELAY);
+
+	error = mms114_setup_regs(data);
+	if (error < 0) {
+		regulator_disable(data->io_reg);
+		regulator_disable(data->core_reg);
+		return error;
+	}
+
+	enable_irq(client->irq);
+
+	return 0;
+}
+
+static void mms114_stop(struct mms114_data *data)
+{
+	struct i2c_client *client = data->client;
+	int error;
+
+	disable_irq(client->irq);
+
+	error = regulator_disable(data->io_reg);
+	if (error)
+		dev_warn(&client->dev, "Failed to disable vdd: %d\n", error);
+
+	error = regulator_disable(data->core_reg);
+	if (error)
+		dev_warn(&client->dev, "Failed to disable avdd: %d\n", error);
+}
+
+static int mms114_input_open(struct input_dev *dev)
+{
+	struct mms114_data *data = input_get_drvdata(dev);
+
+	return mms114_start(data);
+}
+
+static void mms114_input_close(struct input_dev *dev)
+{
+	struct mms114_data *data = input_get_drvdata(dev);
+
+	mms114_stop(data);
+}
+
+static int mms114_parse_legacy_bindings(struct mms114_data *data)
+{
+	struct device *dev = &data->client->dev;
+	struct touchscreen_properties *props = &data->props;
+
+	if (device_property_read_u32(dev, "x-size", &props->max_x)) {
+		dev_dbg(dev, "failed to get legacy x-size property\n");
+		return -EINVAL;
+	}
+
+	if (device_property_read_u32(dev, "y-size", &props->max_y)) {
+		dev_dbg(dev, "failed to get legacy y-size property\n");
+		return -EINVAL;
+	}
+
+	device_property_read_u32(dev, "contact-threshold",
+				&data->contact_threshold);
+	device_property_read_u32(dev, "moving-threshold",
+				&data->moving_threshold);
+
+	if (device_property_read_bool(dev, "x-invert"))
+		props->invert_x = true;
+	if (device_property_read_bool(dev, "y-invert"))
+		props->invert_y = true;
+
+	props->swap_x_y = false;
+
+	return 0;
+}
+
+static int mms114_probe(struct i2c_client *client)
+{
+	struct mms114_data *data;
+	struct input_dev *input_dev;
+	const void *match_data;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "Not supported I2C adapter\n");
+		return -ENODEV;
+	}
+
+	data = devm_kzalloc(&client->dev, sizeof(struct mms114_data),
+			    GFP_KERNEL);
+	input_dev = devm_input_allocate_device(&client->dev);
+	if (!data || !input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	data->client = client;
+	data->input_dev = input_dev;
+
+	match_data = device_get_match_data(&client->dev);
+	if (!match_data)
+		return -EINVAL;
+
+	data->type = (enum mms_type)match_data;
+
+	input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X);
+	input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y);
+	input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+			     0, MMS114_MAX_AREA, 0, 0);
+
+	touchscreen_parse_properties(input_dev, true, &data->props);
+	if (!data->props.max_x || !data->props.max_y) {
+		dev_dbg(&client->dev,
+			"missing X/Y size properties, trying legacy bindings\n");
+		error = mms114_parse_legacy_bindings(data);
+		if (error)
+			return error;
+
+		input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+				     0, data->props.max_x, 0, 0);
+		input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+				     0, data->props.max_y, 0, 0);
+	}
+
+	if (data->type == TYPE_MMS114 || data->type == TYPE_MMS134S ||
+	    data->type == TYPE_MMS136) {
+		/*
+		 * The firmware handles movement and pressure fuzz, so
+		 * don't duplicate that in software.
+		 */
+		data->moving_threshold = input_abs_get_fuzz(input_dev,
+							    ABS_MT_POSITION_X);
+		data->contact_threshold = input_abs_get_fuzz(input_dev,
+							     ABS_MT_PRESSURE);
+		input_abs_set_fuzz(input_dev, ABS_MT_POSITION_X, 0);
+		input_abs_set_fuzz(input_dev, ABS_MT_POSITION_Y, 0);
+		input_abs_set_fuzz(input_dev, ABS_MT_PRESSURE, 0);
+	}
+
+	input_dev->name = devm_kasprintf(&client->dev, GFP_KERNEL,
+					 "MELFAS MMS%d Touchscreen",
+					 data->type);
+	if (!input_dev->name)
+		return -ENOMEM;
+
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+	input_dev->open = mms114_input_open;
+	input_dev->close = mms114_input_close;
+
+	error = input_mt_init_slots(input_dev, MMS114_MAX_TOUCH,
+				    INPUT_MT_DIRECT);
+	if (error)
+		return error;
+
+	input_set_drvdata(input_dev, data);
+	i2c_set_clientdata(client, data);
+
+	data->core_reg = devm_regulator_get(&client->dev, "avdd");
+	if (IS_ERR(data->core_reg)) {
+		error = PTR_ERR(data->core_reg);
+		dev_err(&client->dev,
+			"Unable to get the Core regulator (%d)\n", error);
+		return error;
+	}
+
+	data->io_reg = devm_regulator_get(&client->dev, "vdd");
+	if (IS_ERR(data->io_reg)) {
+		error = PTR_ERR(data->io_reg);
+		dev_err(&client->dev,
+			"Unable to get the IO regulator (%d)\n", error);
+		return error;
+	}
+
+	error = devm_request_threaded_irq(&client->dev, client->irq,
+					  NULL, mms114_interrupt,
+					  IRQF_ONESHOT | IRQF_NO_AUTOEN,
+					  dev_name(&client->dev), data);
+	if (error) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		return error;
+	}
+
+	error = input_register_device(data->input_dev);
+	if (error) {
+		dev_err(&client->dev, "Failed to register input device\n");
+		return error;
+	}
+
+	return 0;
+}
+
+static int __maybe_unused mms114_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mms114_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+	int id;
+
+	/* Release all touch */
+	for (id = 0; id < MMS114_MAX_TOUCH; id++) {
+		input_mt_slot(input_dev, id);
+		input_mt_report_slot_inactive(input_dev);
+	}
+
+	input_mt_report_pointer_emulation(input_dev, true);
+	input_sync(input_dev);
+
+	mutex_lock(&input_dev->mutex);
+	if (input_device_enabled(input_dev))
+		mms114_stop(data);
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static int __maybe_unused mms114_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mms114_data *data = i2c_get_clientdata(client);
+	struct input_dev *input_dev = data->input_dev;
+	int error;
+
+	mutex_lock(&input_dev->mutex);
+	if (input_device_enabled(input_dev)) {
+		error = mms114_start(data);
+		if (error < 0) {
+			mutex_unlock(&input_dev->mutex);
+			return error;
+		}
+	}
+	mutex_unlock(&input_dev->mutex);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(mms114_pm_ops, mms114_suspend, mms114_resume);
+
+static const struct i2c_device_id mms114_id[] = {
+	{ "mms114", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mms114_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id mms114_dt_match[] = {
+	{
+		.compatible = "melfas,mms114",
+		.data = (void *)TYPE_MMS114,
+	}, {
+		.compatible = "melfas,mms134s",
+		.data = (void *)TYPE_MMS134S,
+	}, {
+		.compatible = "melfas,mms136",
+		.data = (void *)TYPE_MMS136,
+	}, {
+		.compatible = "melfas,mms152",
+		.data = (void *)TYPE_MMS152,
+	}, {
+		.compatible = "melfas,mms345l",
+		.data = (void *)TYPE_MMS345L,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mms114_dt_match);
+#endif
+
+static struct i2c_driver mms114_driver = {
+	.driver = {
+		.name	= "mms114",
+		.pm	= &mms114_pm_ops,
+		.of_match_table = of_match_ptr(mms114_dt_match),
+	},
+	.probe_new	= mms114_probe,
+	.id_table	= mms114_id,
+};
+
+module_i2c_driver(mms114_driver);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("MELFAS mms114 Touchscreen driver");
+MODULE_LICENSE("GPL v2");