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, 689 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c
new file mode 100644
index 000000000..e6ade3775
--- /dev/null
+++ b/drivers/input/touchscreen/ilitek_ts_i2c.c
@@ -0,0 +1,689 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ILITEK Touch IC driver for 23XX, 25XX and Lego series
+ *
+ * Copyright (C) 2011 ILI Technology Corporation.
+ * Copyright (C) 2020 Luca Hsu <luca_hsu@ilitek.com>
+ * Copyright (C) 2021 Joe Hung <joe_hung@ilitek.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/input/touchscreen.h>
+#include <asm/unaligned.h>
+
+
+#define ILITEK_TS_NAME					"ilitek_ts"
+#define BL_V1_8						0x108
+#define BL_V1_7						0x107
+#define BL_V1_6						0x106
+
+#define ILITEK_TP_CMD_GET_TP_RES			0x20
+#define ILITEK_TP_CMD_GET_SCRN_RES			0x21
+#define ILITEK_TP_CMD_SET_IC_SLEEP			0x30
+#define ILITEK_TP_CMD_SET_IC_WAKE			0x31
+#define ILITEK_TP_CMD_GET_FW_VER			0x40
+#define ILITEK_TP_CMD_GET_PRL_VER			0x42
+#define ILITEK_TP_CMD_GET_MCU_VER			0x61
+#define ILITEK_TP_CMD_GET_IC_MODE			0xC0
+
+#define REPORT_COUNT_ADDRESS				61
+#define ILITEK_SUPPORT_MAX_POINT			40
+
+struct ilitek_protocol_info {
+	u16 ver;
+	u8 ver_major;
+};
+
+struct ilitek_ts_data {
+	struct i2c_client		*client;
+	struct gpio_desc		*reset_gpio;
+	struct input_dev		*input_dev;
+	struct touchscreen_properties	prop;
+
+	const struct ilitek_protocol_map *ptl_cb_func;
+	struct ilitek_protocol_info	ptl;
+
+	char				product_id[30];
+	u16				mcu_ver;
+	u8				ic_mode;
+	u8				firmware_ver[8];
+
+	s32				reset_time;
+	s32				screen_max_x;
+	s32				screen_max_y;
+	s32				screen_min_x;
+	s32				screen_min_y;
+	s32				max_tp;
+};
+
+struct ilitek_protocol_map {
+	u16 cmd;
+	const char *name;
+	int (*func)(struct ilitek_ts_data *ts, u16 cmd, u8 *inbuf, u8 *outbuf);
+};
+
+enum ilitek_cmds {
+	/* common cmds */
+	GET_PTL_VER = 0,
+	GET_FW_VER,
+	GET_SCRN_RES,
+	GET_TP_RES,
+	GET_IC_MODE,
+	GET_MCU_VER,
+	SET_IC_SLEEP,
+	SET_IC_WAKE,
+
+	/* ALWAYS keep at the end */
+	MAX_CMD_CNT
+};
+
+/* ILITEK I2C R/W APIs */
+static int ilitek_i2c_write_and_read(struct ilitek_ts_data *ts,
+				     u8 *cmd, int write_len, int delay,
+				     u8 *data, int read_len)
+{
+	int error;
+	struct i2c_client *client = ts->client;
+	struct i2c_msg msgs[] = {
+		{
+			.addr = client->addr,
+			.flags = 0,
+			.len = write_len,
+			.buf = cmd,
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = read_len,
+			.buf = data,
+		},
+	};
+
+	if (delay == 0 && write_len > 0 && read_len > 0) {
+		error = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+		if (error < 0)
+			return error;
+	} else {
+		if (write_len > 0) {
+			error = i2c_transfer(client->adapter, msgs, 1);
+			if (error < 0)
+				return error;
+		}
+		if (delay > 0)
+			mdelay(delay);
+
+		if (read_len > 0) {
+			error = i2c_transfer(client->adapter, msgs + 1, 1);
+			if (error < 0)
+				return error;
+		}
+	}
+
+	return 0;
+}
+
+/* ILITEK ISR APIs */
+static void ilitek_touch_down(struct ilitek_ts_data *ts, unsigned int id,
+			      unsigned int x, unsigned int y)
+{
+	struct input_dev *input = ts->input_dev;
+
+	input_mt_slot(input, id);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
+
+	touchscreen_report_pos(input, &ts->prop, x, y, true);
+}
+
+static int ilitek_process_and_report_v6(struct ilitek_ts_data *ts)
+{
+	int error = 0;
+	u8 buf[512];
+	int packet_len = 5;
+	int packet_max_point = 10;
+	int report_max_point;
+	int i, count;
+	struct input_dev *input = ts->input_dev;
+	struct device *dev = &ts->client->dev;
+	unsigned int x, y, status, id;
+
+	error = ilitek_i2c_write_and_read(ts, NULL, 0, 0, buf, 64);
+	if (error) {
+		dev_err(dev, "get touch info failed, err:%d\n", error);
+		goto err_sync_frame;
+	}
+
+	report_max_point = buf[REPORT_COUNT_ADDRESS];
+	if (report_max_point > ts->max_tp) {
+		dev_err(dev, "FW report max point:%d > panel info. max:%d\n",
+			report_max_point, ts->max_tp);
+		error = -EINVAL;
+		goto err_sync_frame;
+	}
+
+	count = DIV_ROUND_UP(report_max_point, packet_max_point);
+	for (i = 1; i < count; i++) {
+		error = ilitek_i2c_write_and_read(ts, NULL, 0, 0,
+						  buf + i * 64, 64);
+		if (error) {
+			dev_err(dev, "get touch info. failed, cnt:%d, err:%d\n",
+				count, error);
+			goto err_sync_frame;
+		}
+	}
+
+	for (i = 0; i < report_max_point; i++) {
+		status = buf[i * packet_len + 1] & 0x40;
+		if (!status)
+			continue;
+
+		id = buf[i * packet_len + 1] & 0x3F;
+
+		x = get_unaligned_le16(buf + i * packet_len + 2);
+		y = get_unaligned_le16(buf + i * packet_len + 4);
+
+		if (x > ts->screen_max_x || x < ts->screen_min_x ||
+		    y > ts->screen_max_y || y < ts->screen_min_y) {
+			dev_warn(dev, "invalid position, X[%d,%u,%d], Y[%d,%u,%d]\n",
+				 ts->screen_min_x, x, ts->screen_max_x,
+				 ts->screen_min_y, y, ts->screen_max_y);
+			continue;
+		}
+
+		ilitek_touch_down(ts, id, x, y);
+	}
+
+err_sync_frame:
+	input_mt_sync_frame(input);
+	input_sync(input);
+	return error;
+}
+
+/* APIs of cmds for ILITEK Touch IC */
+static int api_protocol_set_cmd(struct ilitek_ts_data *ts,
+				u16 idx, u8 *inbuf, u8 *outbuf)
+{
+	u16 cmd;
+	int error;
+
+	if (idx >= MAX_CMD_CNT)
+		return -EINVAL;
+
+	cmd = ts->ptl_cb_func[idx].cmd;
+	error = ts->ptl_cb_func[idx].func(ts, cmd, inbuf, outbuf);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static int api_protocol_get_ptl_ver(struct ilitek_ts_data *ts,
+				    u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 3);
+	if (error)
+		return error;
+
+	ts->ptl.ver = get_unaligned_be16(outbuf);
+	ts->ptl.ver_major = outbuf[0];
+
+	return 0;
+}
+
+static int api_protocol_get_mcu_ver(struct ilitek_ts_data *ts,
+				    u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 32);
+	if (error)
+		return error;
+
+	ts->mcu_ver = get_unaligned_le16(outbuf);
+	memset(ts->product_id, 0, sizeof(ts->product_id));
+	memcpy(ts->product_id, outbuf + 6, 26);
+
+	return 0;
+}
+
+static int api_protocol_get_fw_ver(struct ilitek_ts_data *ts,
+				   u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 8);
+	if (error)
+		return error;
+
+	memcpy(ts->firmware_ver, outbuf, 8);
+
+	return 0;
+}
+
+static int api_protocol_get_scrn_res(struct ilitek_ts_data *ts,
+				     u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 8);
+	if (error)
+		return error;
+
+	ts->screen_min_x = get_unaligned_le16(outbuf);
+	ts->screen_min_y = get_unaligned_le16(outbuf + 2);
+	ts->screen_max_x = get_unaligned_le16(outbuf + 4);
+	ts->screen_max_y = get_unaligned_le16(outbuf + 6);
+
+	return 0;
+}
+
+static int api_protocol_get_tp_res(struct ilitek_ts_data *ts,
+				   u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 15);
+	if (error)
+		return error;
+
+	ts->max_tp = outbuf[8];
+	if (ts->max_tp > ILITEK_SUPPORT_MAX_POINT) {
+		dev_err(&ts->client->dev, "Invalid MAX_TP:%d from FW\n",
+			ts->max_tp);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int api_protocol_get_ic_mode(struct ilitek_ts_data *ts,
+				    u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	int error;
+	u8 buf[64];
+
+	buf[0] = cmd;
+	error = ilitek_i2c_write_and_read(ts, buf, 1, 5, outbuf, 2);
+	if (error)
+		return error;
+
+	ts->ic_mode = outbuf[0];
+	return 0;
+}
+
+static int api_protocol_set_ic_sleep(struct ilitek_ts_data *ts,
+				     u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	u8 buf[64];
+
+	buf[0] = cmd;
+	return ilitek_i2c_write_and_read(ts, buf, 1, 0, NULL, 0);
+}
+
+static int api_protocol_set_ic_wake(struct ilitek_ts_data *ts,
+				    u16 cmd, u8 *inbuf, u8 *outbuf)
+{
+	u8 buf[64];
+
+	buf[0] = cmd;
+	return ilitek_i2c_write_and_read(ts, buf, 1, 0, NULL, 0);
+}
+
+static const struct ilitek_protocol_map ptl_func_map[] = {
+	/* common cmds */
+	[GET_PTL_VER] = {
+		ILITEK_TP_CMD_GET_PRL_VER, "GET_PTL_VER",
+		api_protocol_get_ptl_ver
+	},
+	[GET_FW_VER] = {
+		ILITEK_TP_CMD_GET_FW_VER, "GET_FW_VER",
+		api_protocol_get_fw_ver
+	},
+	[GET_SCRN_RES] = {
+		ILITEK_TP_CMD_GET_SCRN_RES, "GET_SCRN_RES",
+		api_protocol_get_scrn_res
+	},
+	[GET_TP_RES] = {
+		ILITEK_TP_CMD_GET_TP_RES, "GET_TP_RES",
+		api_protocol_get_tp_res
+	},
+	[GET_IC_MODE] = {
+		ILITEK_TP_CMD_GET_IC_MODE, "GET_IC_MODE",
+			   api_protocol_get_ic_mode
+	},
+	[GET_MCU_VER] = {
+		ILITEK_TP_CMD_GET_MCU_VER, "GET_MOD_VER",
+			   api_protocol_get_mcu_ver
+	},
+	[SET_IC_SLEEP] = {
+		ILITEK_TP_CMD_SET_IC_SLEEP, "SET_IC_SLEEP",
+		api_protocol_set_ic_sleep
+	},
+	[SET_IC_WAKE] = {
+		ILITEK_TP_CMD_SET_IC_WAKE, "SET_IC_WAKE",
+		api_protocol_set_ic_wake
+	},
+};
+
+/* Probe APIs */
+static void ilitek_reset(struct ilitek_ts_data *ts, int delay)
+{
+	if (ts->reset_gpio) {
+		gpiod_set_value(ts->reset_gpio, 1);
+		mdelay(10);
+		gpiod_set_value(ts->reset_gpio, 0);
+		mdelay(delay);
+	}
+}
+
+static int ilitek_protocol_init(struct ilitek_ts_data *ts)
+{
+	int error;
+	u8 outbuf[64];
+
+	ts->ptl_cb_func = ptl_func_map;
+	ts->reset_time = 600;
+
+	error = api_protocol_set_cmd(ts, GET_PTL_VER, NULL, outbuf);
+	if (error)
+		return error;
+
+	/* Protocol v3 is not support currently */
+	if (ts->ptl.ver_major == 0x3 ||
+	    ts->ptl.ver == BL_V1_6 ||
+	    ts->ptl.ver == BL_V1_7)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int ilitek_read_tp_info(struct ilitek_ts_data *ts, bool boot)
+{
+	u8 outbuf[256];
+	int error;
+
+	error = api_protocol_set_cmd(ts, GET_PTL_VER, NULL, outbuf);
+	if (error)
+		return error;
+
+	error = api_protocol_set_cmd(ts, GET_MCU_VER, NULL, outbuf);
+	if (error)
+		return error;
+
+	error = api_protocol_set_cmd(ts, GET_FW_VER, NULL, outbuf);
+	if (error)
+		return error;
+
+	if (boot) {
+		error = api_protocol_set_cmd(ts, GET_SCRN_RES, NULL,
+					     outbuf);
+		if (error)
+			return error;
+	}
+
+	error = api_protocol_set_cmd(ts, GET_TP_RES, NULL, outbuf);
+	if (error)
+		return error;
+
+	error = api_protocol_set_cmd(ts, GET_IC_MODE, NULL, outbuf);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static int ilitek_input_dev_init(struct device *dev, struct ilitek_ts_data *ts)
+{
+	int error;
+	struct input_dev *input;
+
+	input = devm_input_allocate_device(dev);
+	if (!input)
+		return -ENOMEM;
+
+	ts->input_dev = input;
+	input->name = ILITEK_TS_NAME;
+	input->id.bustype = BUS_I2C;
+
+	__set_bit(INPUT_PROP_DIRECT, input->propbit);
+
+	input_set_abs_params(input, ABS_MT_POSITION_X,
+			     ts->screen_min_x, ts->screen_max_x, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_Y,
+			     ts->screen_min_y, ts->screen_max_y, 0, 0);
+
+	touchscreen_parse_properties(input, true, &ts->prop);
+
+	error = input_mt_init_slots(input, ts->max_tp,
+				    INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+	if (error) {
+		dev_err(dev, "initialize MT slots failed, err:%d\n", error);
+		return error;
+	}
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(dev, "register input device failed, err:%d\n", error);
+		return error;
+	}
+
+	return 0;
+}
+
+static irqreturn_t ilitek_i2c_isr(int irq, void *dev_id)
+{
+	struct ilitek_ts_data *ts = dev_id;
+	int error;
+
+	error = ilitek_process_and_report_v6(ts);
+	if (error < 0) {
+		dev_err(&ts->client->dev, "[%s] err:%d\n", __func__, error);
+		return IRQ_NONE;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static ssize_t firmware_version_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ilitek_ts_data *ts = i2c_get_clientdata(client);
+
+	return scnprintf(buf, PAGE_SIZE,
+			 "fw version: [%02X%02X.%02X%02X.%02X%02X.%02X%02X]\n",
+			 ts->firmware_ver[0], ts->firmware_ver[1],
+			 ts->firmware_ver[2], ts->firmware_ver[3],
+			 ts->firmware_ver[4], ts->firmware_ver[5],
+			 ts->firmware_ver[6], ts->firmware_ver[7]);
+}
+static DEVICE_ATTR_RO(firmware_version);
+
+static ssize_t product_id_show(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ilitek_ts_data *ts = i2c_get_clientdata(client);
+
+	return scnprintf(buf, PAGE_SIZE, "product id: [%04X], module: [%s]\n",
+			 ts->mcu_ver, ts->product_id);
+}
+static DEVICE_ATTR_RO(product_id);
+
+static struct attribute *ilitek_sysfs_attrs[] = {
+	&dev_attr_firmware_version.attr,
+	&dev_attr_product_id.attr,
+	NULL
+};
+
+static struct attribute_group ilitek_attrs_group = {
+	.attrs = ilitek_sysfs_attrs,
+};
+
+static int ilitek_ts_i2c_probe(struct i2c_client *client)
+{
+	struct ilitek_ts_data *ts;
+	struct device *dev = &client->dev;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(dev, "i2c check functionality failed\n");
+		return -ENXIO;
+	}
+
+	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	ts->client = client;
+	i2c_set_clientdata(client, ts);
+
+	ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(ts->reset_gpio)) {
+		error = PTR_ERR(ts->reset_gpio);
+		dev_err(dev, "request gpiod failed: %d", error);
+		return error;
+	}
+
+	ilitek_reset(ts, 1000);
+
+	error = ilitek_protocol_init(ts);
+	if (error) {
+		dev_err(dev, "protocol init failed: %d", error);
+		return error;
+	}
+
+	error = ilitek_read_tp_info(ts, true);
+	if (error) {
+		dev_err(dev, "read tp info failed: %d", error);
+		return error;
+	}
+
+	error = ilitek_input_dev_init(dev, ts);
+	if (error) {
+		dev_err(dev, "input dev init failed: %d", error);
+		return error;
+	}
+
+	error = devm_request_threaded_irq(dev, ts->client->irq,
+					  NULL, ilitek_i2c_isr, IRQF_ONESHOT,
+					  "ilitek_touch_irq", ts);
+	if (error) {
+		dev_err(dev, "request threaded irq failed: %d\n", error);
+		return error;
+	}
+
+	error = devm_device_add_group(dev, &ilitek_attrs_group);
+	if (error) {
+		dev_err(dev, "sysfs create group failed: %d\n", error);
+		return error;
+	}
+
+	return 0;
+}
+
+static int __maybe_unused ilitek_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ilitek_ts_data *ts = i2c_get_clientdata(client);
+	int error;
+
+	disable_irq(client->irq);
+
+	if (!device_may_wakeup(dev)) {
+		error = api_protocol_set_cmd(ts, SET_IC_SLEEP, NULL, NULL);
+		if (error)
+			return error;
+	}
+
+	return 0;
+}
+
+static int __maybe_unused ilitek_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct ilitek_ts_data *ts = i2c_get_clientdata(client);
+	int error;
+
+	if (!device_may_wakeup(dev)) {
+		error = api_protocol_set_cmd(ts, SET_IC_WAKE, NULL, NULL);
+		if (error)
+			return error;
+
+		ilitek_reset(ts, ts->reset_time);
+	}
+
+	enable_irq(client->irq);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(ilitek_pm_ops, ilitek_suspend, ilitek_resume);
+
+static const struct i2c_device_id ilitek_ts_i2c_id[] = {
+	{ ILITEK_TS_NAME, 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, ilitek_ts_i2c_id);
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ilitekts_acpi_id[] = {
+	{ "ILTK0001", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, ilitekts_acpi_id);
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id ilitek_ts_i2c_match[] = {
+	{.compatible = "ilitek,ili2130",},
+	{.compatible = "ilitek,ili2131",},
+	{.compatible = "ilitek,ili2132",},
+	{.compatible = "ilitek,ili2316",},
+	{.compatible = "ilitek,ili2322",},
+	{.compatible = "ilitek,ili2323",},
+	{.compatible = "ilitek,ili2326",},
+	{.compatible = "ilitek,ili2520",},
+	{.compatible = "ilitek,ili2521",},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, ilitek_ts_i2c_match);
+#endif
+
+static struct i2c_driver ilitek_ts_i2c_driver = {
+	.driver = {
+		.name = ILITEK_TS_NAME,
+		.pm = &ilitek_pm_ops,
+		.of_match_table = of_match_ptr(ilitek_ts_i2c_match),
+		.acpi_match_table = ACPI_PTR(ilitekts_acpi_id),
+	},
+	.probe_new = ilitek_ts_i2c_probe,
+	.id_table = ilitek_ts_i2c_id,
+};
+module_i2c_driver(ilitek_ts_i2c_driver);
+
+MODULE_AUTHOR("ILITEK");
+MODULE_DESCRIPTION("ILITEK I2C Touchscreen Driver");
+MODULE_LICENSE("GPL");