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, 1051 insertions, 0 deletions

diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
new file mode 100644
index 000000000..2b01873ba
--- /dev/null
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -0,0 +1,1051 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for M-5MOLS 8M Pixel camera sensor with ISP
+ *
+ * Copyright (C) 2011 Samsung Electronics Co., Ltd.
+ * Author: HeungJun Kim <riverful.kim@samsung.com>
+ *
+ * Copyright (C) 2009 Samsung Electronics Co., Ltd.
+ * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
+ */
+
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+#include <linux/videodev2.h>
+#include <linux/module.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include <media/i2c/m5mols.h>
+
+#include "m5mols.h"
+#include "m5mols_reg.h"
+
+int m5mols_debug;
+module_param(m5mols_debug, int, 0644);
+
+#define MODULE_NAME		"M5MOLS"
+#define M5MOLS_I2C_CHECK_RETRY	500
+
+/* The regulator consumer names for external voltage regulators */
+static struct regulator_bulk_data supplies[] = {
+	{
+		.supply = "core",	/* ARM core power, 1.2V */
+	}, {
+		.supply	= "dig_18",	/* digital power 1, 1.8V */
+	}, {
+		.supply	= "d_sensor",	/* sensor power 1, 1.8V */
+	}, {
+		.supply	= "dig_28",	/* digital power 2, 2.8V */
+	}, {
+		.supply	= "a_sensor",	/* analog power */
+	}, {
+		.supply	= "dig_12",	/* digital power 3, 1.2V */
+	},
+};
+
+static struct v4l2_mbus_framefmt m5mols_default_ffmt[M5MOLS_RESTYPE_MAX] = {
+	[M5MOLS_RESTYPE_MONITOR] = {
+		.width		= 1920,
+		.height		= 1080,
+		.code		= MEDIA_BUS_FMT_VYUY8_2X8,
+		.field		= V4L2_FIELD_NONE,
+		.colorspace	= V4L2_COLORSPACE_JPEG,
+	},
+	[M5MOLS_RESTYPE_CAPTURE] = {
+		.width		= 1920,
+		.height		= 1080,
+		.code		= MEDIA_BUS_FMT_JPEG_1X8,
+		.field		= V4L2_FIELD_NONE,
+		.colorspace	= V4L2_COLORSPACE_JPEG,
+	},
+};
+#define SIZE_DEFAULT_FFMT	ARRAY_SIZE(m5mols_default_ffmt)
+
+static const struct m5mols_resolution m5mols_reg_res[] = {
+	{ 0x01, M5MOLS_RESTYPE_MONITOR, 128, 96 },	/* SUB-QCIF */
+	{ 0x03, M5MOLS_RESTYPE_MONITOR, 160, 120 },	/* QQVGA */
+	{ 0x05, M5MOLS_RESTYPE_MONITOR, 176, 144 },	/* QCIF */
+	{ 0x06, M5MOLS_RESTYPE_MONITOR, 176, 176 },
+	{ 0x08, M5MOLS_RESTYPE_MONITOR, 240, 320 },	/* QVGA */
+	{ 0x09, M5MOLS_RESTYPE_MONITOR, 320, 240 },	/* QVGA */
+	{ 0x0c, M5MOLS_RESTYPE_MONITOR, 240, 400 },	/* WQVGA */
+	{ 0x0d, M5MOLS_RESTYPE_MONITOR, 400, 240 },	/* WQVGA */
+	{ 0x0e, M5MOLS_RESTYPE_MONITOR, 352, 288 },	/* CIF */
+	{ 0x13, M5MOLS_RESTYPE_MONITOR, 480, 360 },
+	{ 0x15, M5MOLS_RESTYPE_MONITOR, 640, 360 },	/* qHD */
+	{ 0x17, M5MOLS_RESTYPE_MONITOR, 640, 480 },	/* VGA */
+	{ 0x18, M5MOLS_RESTYPE_MONITOR, 720, 480 },
+	{ 0x1a, M5MOLS_RESTYPE_MONITOR, 800, 480 },	/* WVGA */
+	{ 0x1f, M5MOLS_RESTYPE_MONITOR, 800, 600 },	/* SVGA */
+	{ 0x21, M5MOLS_RESTYPE_MONITOR, 1280, 720 },	/* HD */
+	{ 0x25, M5MOLS_RESTYPE_MONITOR, 1920, 1080 },	/* 1080p */
+	{ 0x29, M5MOLS_RESTYPE_MONITOR, 3264, 2448 },	/* 2.63fps 8M */
+	{ 0x39, M5MOLS_RESTYPE_MONITOR, 800, 602 },	/* AHS_MON debug */
+
+	{ 0x02, M5MOLS_RESTYPE_CAPTURE, 320, 240 },	/* QVGA */
+	{ 0x04, M5MOLS_RESTYPE_CAPTURE, 400, 240 },	/* WQVGA */
+	{ 0x07, M5MOLS_RESTYPE_CAPTURE, 480, 360 },
+	{ 0x08, M5MOLS_RESTYPE_CAPTURE, 640, 360 },	/* qHD */
+	{ 0x09, M5MOLS_RESTYPE_CAPTURE, 640, 480 },	/* VGA */
+	{ 0x0a, M5MOLS_RESTYPE_CAPTURE, 800, 480 },	/* WVGA */
+	{ 0x10, M5MOLS_RESTYPE_CAPTURE, 1280, 720 },	/* HD */
+	{ 0x14, M5MOLS_RESTYPE_CAPTURE, 1280, 960 },	/* 1M */
+	{ 0x17, M5MOLS_RESTYPE_CAPTURE, 1600, 1200 },	/* 2M */
+	{ 0x19, M5MOLS_RESTYPE_CAPTURE, 1920, 1080 },	/* Full-HD */
+	{ 0x1a, M5MOLS_RESTYPE_CAPTURE, 2048, 1152 },	/* 3Mega */
+	{ 0x1b, M5MOLS_RESTYPE_CAPTURE, 2048, 1536 },
+	{ 0x1c, M5MOLS_RESTYPE_CAPTURE, 2560, 1440 },	/* 4Mega */
+	{ 0x1d, M5MOLS_RESTYPE_CAPTURE, 2560, 1536 },
+	{ 0x1f, M5MOLS_RESTYPE_CAPTURE, 2560, 1920 },	/* 5Mega */
+	{ 0x21, M5MOLS_RESTYPE_CAPTURE, 3264, 1836 },	/* 6Mega */
+	{ 0x22, M5MOLS_RESTYPE_CAPTURE, 3264, 1960 },
+	{ 0x25, M5MOLS_RESTYPE_CAPTURE, 3264, 2448 },	/* 8Mega */
+};
+
+/**
+ * m5mols_swap_byte - an byte array to integer conversion function
+ * @data: byte array
+ * @length: size in bytes of I2C packet defined in the M-5MOLS datasheet
+ *
+ * Convert I2C data byte array with performing any required byte
+ * reordering to assure proper values for each data type, regardless
+ * of the architecture endianness.
+ */
+static u32 m5mols_swap_byte(u8 *data, u8 length)
+{
+	if (length == 1)
+		return *data;
+	else if (length == 2)
+		return be16_to_cpu(*((__be16 *)data));
+	else
+		return be32_to_cpu(*((__be32 *)data));
+}
+
+/**
+ * m5mols_read -  I2C read function
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @size: desired size of I2C packet
+ * @reg: combination of size, category and command for the I2C packet
+ * @val: read value
+ *
+ * Returns 0 on success, or else negative errno.
+ */
+static int m5mols_read(struct v4l2_subdev *sd, u32 size, u32 reg, u32 *val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct m5mols_info *info = to_m5mols(sd);
+	u8 rbuf[M5MOLS_I2C_MAX_SIZE + 1];
+	u8 category = I2C_CATEGORY(reg);
+	u8 cmd = I2C_COMMAND(reg);
+	struct i2c_msg msg[2];
+	u8 wbuf[5];
+	int ret;
+
+	if (!client->adapter)
+		return -ENODEV;
+
+	msg[0].addr = client->addr;
+	msg[0].flags = 0;
+	msg[0].len = 5;
+	msg[0].buf = wbuf;
+	wbuf[0] = 5;
+	wbuf[1] = M5MOLS_BYTE_READ;
+	wbuf[2] = category;
+	wbuf[3] = cmd;
+	wbuf[4] = size;
+
+	msg[1].addr = client->addr;
+	msg[1].flags = I2C_M_RD;
+	msg[1].len = size + 1;
+	msg[1].buf = rbuf;
+
+	/* minimum stabilization time */
+	usleep_range(200, 300);
+
+	ret = i2c_transfer(client->adapter, msg, 2);
+
+	if (ret == 2) {
+		*val = m5mols_swap_byte(&rbuf[1], size);
+		return 0;
+	}
+
+	if (info->isp_ready)
+		v4l2_err(sd, "read failed: size:%d cat:%02x cmd:%02x. %d\n",
+			 size, category, cmd, ret);
+
+	return ret < 0 ? ret : -EIO;
+}
+
+int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg, u8 *val)
+{
+	u32 val_32;
+	int ret;
+
+	if (I2C_SIZE(reg) != 1) {
+		v4l2_err(sd, "Wrong data size\n");
+		return -EINVAL;
+	}
+
+	ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32);
+	if (ret)
+		return ret;
+
+	*val = (u8)val_32;
+	return ret;
+}
+
+int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg, u16 *val)
+{
+	u32 val_32;
+	int ret;
+
+	if (I2C_SIZE(reg) != 2) {
+		v4l2_err(sd, "Wrong data size\n");
+		return -EINVAL;
+	}
+
+	ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32);
+	if (ret)
+		return ret;
+
+	*val = (u16)val_32;
+	return ret;
+}
+
+int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg, u32 *val)
+{
+	if (I2C_SIZE(reg) != 4) {
+		v4l2_err(sd, "Wrong data size\n");
+		return -EINVAL;
+	}
+
+	return m5mols_read(sd, I2C_SIZE(reg), reg, val);
+}
+
+/**
+ * m5mols_write - I2C command write function
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @reg: combination of size, category and command for the I2C packet
+ * @val: value to write
+ *
+ * Returns 0 on success, or else negative errno.
+ */
+int m5mols_write(struct v4l2_subdev *sd, u32 reg, u32 val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct m5mols_info *info = to_m5mols(sd);
+	u8 wbuf[M5MOLS_I2C_MAX_SIZE + 4];
+	u8 category = I2C_CATEGORY(reg);
+	u8 cmd = I2C_COMMAND(reg);
+	u8 size	= I2C_SIZE(reg);
+	u32 *buf = (u32 *)&wbuf[4];
+	struct i2c_msg msg[1];
+	int ret;
+
+	if (!client->adapter)
+		return -ENODEV;
+
+	if (size != 1 && size != 2 && size != 4) {
+		v4l2_err(sd, "Wrong data size\n");
+		return -EINVAL;
+	}
+
+	msg->addr = client->addr;
+	msg->flags = 0;
+	msg->len = (u16)size + 4;
+	msg->buf = wbuf;
+	wbuf[0] = size + 4;
+	wbuf[1] = M5MOLS_BYTE_WRITE;
+	wbuf[2] = category;
+	wbuf[3] = cmd;
+
+	*buf = m5mols_swap_byte((u8 *)&val, size);
+
+	/* minimum stabilization time */
+	usleep_range(200, 300);
+
+	ret = i2c_transfer(client->adapter, msg, 1);
+	if (ret == 1)
+		return 0;
+
+	if (info->isp_ready)
+		v4l2_err(sd, "write failed: cat:%02x cmd:%02x ret:%d\n",
+			 category, cmd, ret);
+
+	return ret < 0 ? ret : -EIO;
+}
+
+/**
+ * m5mols_busy_wait - Busy waiting with I2C register polling
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @reg: the I2C_REG() address of an 8-bit status register to check
+ * @value: expected status register value
+ * @mask: bit mask for the read status register value
+ * @timeout: timeout in milliseconds, or -1 for default timeout
+ *
+ * The @reg register value is ORed with @mask before comparing with @value.
+ *
+ * Return: 0 if the requested condition became true within less than
+ *         @timeout ms, or else negative errno.
+ */
+int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask,
+		     int timeout)
+{
+	int ms = timeout < 0 ? M5MOLS_BUSY_WAIT_DEF_TIMEOUT : timeout;
+	unsigned long end = jiffies + msecs_to_jiffies(ms);
+	u8 status;
+
+	do {
+		int ret = m5mols_read_u8(sd, reg, &status);
+
+		if (ret < 0 && !(mask & M5MOLS_I2C_RDY_WAIT_FL))
+			return ret;
+		if (!ret && (status & mask & 0xff) == (value & 0xff))
+			return 0;
+		usleep_range(100, 250);
+	} while (ms > 0 && time_is_after_jiffies(end));
+
+	return -EBUSY;
+}
+
+/**
+ * m5mols_enable_interrupt - Clear interrupt pending bits and unmask interrupts
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @reg: combination of size, category and command for the I2C packet
+ *
+ * Before writing desired interrupt value the INT_FACTOR register should
+ * be read to clear pending interrupts.
+ */
+int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	u8 mask = is_available_af(info) ? REG_INT_AF : 0;
+	u8 dummy;
+	int ret;
+
+	ret = m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &dummy);
+	if (!ret)
+		ret = m5mols_write(sd, SYSTEM_INT_ENABLE, reg & ~mask);
+	return ret;
+}
+
+int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 irq_mask, u32 timeout)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+
+	int ret = wait_event_interruptible_timeout(info->irq_waitq,
+				atomic_add_unless(&info->irq_done, -1, 0),
+				msecs_to_jiffies(timeout));
+	if (ret <= 0)
+		return ret ? ret : -ETIMEDOUT;
+
+	return m5mols_busy_wait(sd, SYSTEM_INT_FACTOR, irq_mask,
+				M5MOLS_I2C_RDY_WAIT_FL | irq_mask, -1);
+}
+
+/**
+ * m5mols_reg_mode - Write the mode and check busy status
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @mode: the required operation mode
+ *
+ * It always accompanies a little delay changing the M-5MOLS mode, so it is
+ * needed checking current busy status to guarantee right mode.
+ */
+static int m5mols_reg_mode(struct v4l2_subdev *sd, u8 mode)
+{
+	int ret = m5mols_write(sd, SYSTEM_SYSMODE, mode);
+	if (ret < 0)
+		return ret;
+	return m5mols_busy_wait(sd, SYSTEM_SYSMODE, mode, 0xff,
+				M5MOLS_MODE_CHANGE_TIMEOUT);
+}
+
+/**
+ * m5mols_set_mode - set the M-5MOLS controller mode
+ * @info: M-5MOLS driver data structure
+ * @mode: the required operation mode
+ *
+ * The commands of M-5MOLS are grouped into specific modes. Each functionality
+ * can be guaranteed only when the sensor is operating in mode which a command
+ * belongs to.
+ */
+int m5mols_set_mode(struct m5mols_info *info, u8 mode)
+{
+	struct v4l2_subdev *sd = &info->sd;
+	int ret = -EINVAL;
+	u8 reg;
+
+	if (mode < REG_PARAMETER || mode > REG_CAPTURE)
+		return ret;
+
+	ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, &reg);
+	if (ret || reg == mode)
+		return ret;
+
+	switch (reg) {
+	case REG_PARAMETER:
+		ret = m5mols_reg_mode(sd, REG_MONITOR);
+		if (mode == REG_MONITOR)
+			break;
+		if (!ret)
+			ret = m5mols_reg_mode(sd, REG_CAPTURE);
+		break;
+
+	case REG_MONITOR:
+		if (mode == REG_PARAMETER) {
+			ret = m5mols_reg_mode(sd, REG_PARAMETER);
+			break;
+		}
+
+		ret = m5mols_reg_mode(sd, REG_CAPTURE);
+		break;
+
+	case REG_CAPTURE:
+		ret = m5mols_reg_mode(sd, REG_MONITOR);
+		if (mode == REG_MONITOR)
+			break;
+		if (!ret)
+			ret = m5mols_reg_mode(sd, REG_PARAMETER);
+		break;
+
+	default:
+		v4l2_warn(sd, "Wrong mode: %d\n", mode);
+	}
+
+	if (!ret)
+		info->mode = mode;
+
+	return ret;
+}
+
+/**
+ * m5mols_get_version - retrieve full revisions information of M-5MOLS
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ *
+ * The version information includes revisions of hardware and firmware,
+ * AutoFocus alghorithm version and the version string.
+ */
+static int m5mols_get_version(struct v4l2_subdev *sd)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	struct m5mols_version *ver = &info->ver;
+	u8 *str = ver->str;
+	int i;
+	int ret;
+
+	ret = m5mols_read_u8(sd, SYSTEM_VER_CUSTOMER, &ver->customer);
+	if (!ret)
+		ret = m5mols_read_u8(sd, SYSTEM_VER_PROJECT, &ver->project);
+	if (!ret)
+		ret = m5mols_read_u16(sd, SYSTEM_VER_FIRMWARE, &ver->fw);
+	if (!ret)
+		ret = m5mols_read_u16(sd, SYSTEM_VER_HARDWARE, &ver->hw);
+	if (!ret)
+		ret = m5mols_read_u16(sd, SYSTEM_VER_PARAMETER, &ver->param);
+	if (!ret)
+		ret = m5mols_read_u16(sd, SYSTEM_VER_AWB, &ver->awb);
+	if (!ret)
+		ret = m5mols_read_u8(sd, AF_VERSION, &ver->af);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < VERSION_STRING_SIZE; i++) {
+		ret = m5mols_read_u8(sd, SYSTEM_VER_STRING, &str[i]);
+		if (ret)
+			return ret;
+	}
+
+	v4l2_info(sd, "Manufacturer\t[%s]\n",
+			is_manufacturer(info, REG_SAMSUNG_ELECTRO) ?
+			"Samsung Electro-Mechanics" :
+			is_manufacturer(info, REG_SAMSUNG_OPTICS) ?
+			"Samsung Fiber-Optics" :
+			is_manufacturer(info, REG_SAMSUNG_TECHWIN) ?
+			"Samsung Techwin" : "None");
+	v4l2_info(sd, "Customer/Project\t[0x%02x/0x%02x]\n",
+			info->ver.customer, info->ver.project);
+
+	if (!is_available_af(info))
+		v4l2_info(sd, "No support Auto Focus on this firmware\n");
+
+	return ret;
+}
+
+/**
+ * __find_restype - Lookup M-5MOLS resolution type according to pixel code
+ * @code: pixel code
+ */
+static enum m5mols_restype __find_restype(u32 code)
+{
+	enum m5mols_restype type = M5MOLS_RESTYPE_MONITOR;
+
+	do {
+		if (code == m5mols_default_ffmt[type].code)
+			return type;
+	} while (type++ != SIZE_DEFAULT_FFMT);
+
+	return 0;
+}
+
+/**
+ * __find_resolution - Lookup preset and type of M-5MOLS's resolution
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @mf: pixel format to find/negotiate the resolution preset for
+ * @type: M-5MOLS resolution type
+ * @resolution:	M-5MOLS resolution preset register value
+ *
+ * Find nearest resolution matching resolution preset and adjust mf
+ * to supported values.
+ */
+static int __find_resolution(struct v4l2_subdev *sd,
+			     struct v4l2_mbus_framefmt *mf,
+			     enum m5mols_restype *type,
+			     u32 *resolution)
+{
+	const struct m5mols_resolution *fsize = &m5mols_reg_res[0];
+	const struct m5mols_resolution *match = NULL;
+	enum m5mols_restype stype = __find_restype(mf->code);
+	int i = ARRAY_SIZE(m5mols_reg_res);
+	unsigned int min_err = ~0;
+
+	while (i--) {
+		int err;
+		if (stype == fsize->type) {
+			err = abs(fsize->width - mf->width)
+				+ abs(fsize->height - mf->height);
+
+			if (err < min_err) {
+				min_err = err;
+				match = fsize;
+			}
+		}
+		fsize++;
+	}
+	if (match) {
+		mf->width  = match->width;
+		mf->height = match->height;
+		*resolution = match->reg;
+		*type = stype;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static struct v4l2_mbus_framefmt *__find_format(struct m5mols_info *info,
+				struct v4l2_subdev_state *sd_state,
+				enum v4l2_subdev_format_whence which,
+				enum m5mols_restype type)
+{
+	if (which == V4L2_SUBDEV_FORMAT_TRY)
+		return sd_state ? v4l2_subdev_get_try_format(&info->sd,
+							     sd_state, 0) : NULL;
+
+	return &info->ffmt[type];
+}
+
+static int m5mols_get_fmt(struct v4l2_subdev *sd,
+			  struct v4l2_subdev_state *sd_state,
+			  struct v4l2_subdev_format *fmt)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	struct v4l2_mbus_framefmt *format;
+	int ret = 0;
+
+	mutex_lock(&info->lock);
+
+	format = __find_format(info, sd_state, fmt->which, info->res_type);
+	if (format)
+		fmt->format = *format;
+	else
+		ret = -EINVAL;
+
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int m5mols_set_fmt(struct v4l2_subdev *sd,
+			  struct v4l2_subdev_state *sd_state,
+			  struct v4l2_subdev_format *fmt)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	struct v4l2_mbus_framefmt *format = &fmt->format;
+	struct v4l2_mbus_framefmt *sfmt;
+	enum m5mols_restype type;
+	u32 resolution = 0;
+	int ret;
+
+	ret = __find_resolution(sd, format, &type, &resolution);
+	if (ret < 0)
+		return ret;
+
+	sfmt = __find_format(info, sd_state, fmt->which, type);
+	if (!sfmt)
+		return 0;
+
+	mutex_lock(&info->lock);
+
+	format->code = m5mols_default_ffmt[type].code;
+	format->colorspace = V4L2_COLORSPACE_JPEG;
+	format->field = V4L2_FIELD_NONE;
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		*sfmt = *format;
+		info->resolution = resolution;
+		info->res_type = type;
+	}
+
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int m5mols_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+				 struct v4l2_mbus_frame_desc *fd)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+
+	if (pad != 0 || fd == NULL)
+		return -EINVAL;
+
+	mutex_lock(&info->lock);
+	/*
+	 * .get_frame_desc is only used for compressed formats,
+	 * thus we always return the capture frame parameters here.
+	 */
+	fd->entry[0].length = info->cap.buf_size;
+	fd->entry[0].pixelcode = info->ffmt[M5MOLS_RESTYPE_CAPTURE].code;
+	mutex_unlock(&info->lock);
+
+	fd->entry[0].flags = V4L2_MBUS_FRAME_DESC_FL_LEN_MAX;
+	fd->num_entries = 1;
+
+	return 0;
+}
+
+static int m5mols_set_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
+				 struct v4l2_mbus_frame_desc *fd)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	struct v4l2_mbus_framefmt *mf = &info->ffmt[M5MOLS_RESTYPE_CAPTURE];
+
+	if (pad != 0 || fd == NULL)
+		return -EINVAL;
+
+	fd->entry[0].flags = V4L2_MBUS_FRAME_DESC_FL_LEN_MAX;
+	fd->num_entries = 1;
+	fd->entry[0].length = clamp_t(u32, fd->entry[0].length,
+				      mf->width * mf->height,
+				      M5MOLS_MAIN_JPEG_SIZE_MAX);
+	mutex_lock(&info->lock);
+	info->cap.buf_size = fd->entry[0].length;
+	mutex_unlock(&info->lock);
+
+	return 0;
+}
+
+
+static int m5mols_enum_mbus_code(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_state *sd_state,
+				 struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (!code || code->index >= SIZE_DEFAULT_FFMT)
+		return -EINVAL;
+
+	code->code = m5mols_default_ffmt[code->index].code;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_pad_ops m5mols_pad_ops = {
+	.enum_mbus_code	= m5mols_enum_mbus_code,
+	.get_fmt	= m5mols_get_fmt,
+	.set_fmt	= m5mols_set_fmt,
+	.get_frame_desc	= m5mols_get_frame_desc,
+	.set_frame_desc	= m5mols_set_frame_desc,
+};
+
+/**
+ * m5mols_restore_controls - Apply current control values to the registers
+ * @info: M-5MOLS driver data structure
+ *
+ * m5mols_do_scenemode() handles all parameters for which there is yet no
+ * individual control. It should be replaced at some point by setting each
+ * control individually, in required register set up order.
+ */
+int m5mols_restore_controls(struct m5mols_info *info)
+{
+	int ret;
+
+	if (info->ctrl_sync)
+		return 0;
+
+	ret = m5mols_do_scenemode(info, REG_SCENE_NORMAL);
+	if (ret)
+		return ret;
+
+	ret = v4l2_ctrl_handler_setup(&info->handle);
+	info->ctrl_sync = !ret;
+
+	return ret;
+}
+
+/**
+ * m5mols_start_monitor - Start the monitor mode
+ * @info: M-5MOLS driver data structure
+ *
+ * Before applying the controls setup the resolution and frame rate
+ * in PARAMETER mode, and then switch over to MONITOR mode.
+ */
+static int m5mols_start_monitor(struct m5mols_info *info)
+{
+	struct v4l2_subdev *sd = &info->sd;
+	int ret;
+
+	ret = m5mols_set_mode(info, REG_PARAMETER);
+	if (!ret)
+		ret = m5mols_write(sd, PARM_MON_SIZE, info->resolution);
+	if (!ret)
+		ret = m5mols_write(sd, PARM_MON_FPS, REG_FPS_30);
+	if (!ret)
+		ret = m5mols_set_mode(info, REG_MONITOR);
+	if (!ret)
+		ret = m5mols_restore_controls(info);
+
+	return ret;
+}
+
+static int m5mols_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	u32 code;
+	int ret;
+
+	mutex_lock(&info->lock);
+	code = info->ffmt[info->res_type].code;
+
+	if (enable) {
+		if (is_code(code, M5MOLS_RESTYPE_MONITOR))
+			ret = m5mols_start_monitor(info);
+		else if (is_code(code, M5MOLS_RESTYPE_CAPTURE))
+			ret = m5mols_start_capture(info);
+		else
+			ret = -EINVAL;
+	} else {
+		ret = m5mols_set_mode(info, REG_PARAMETER);
+	}
+
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static const struct v4l2_subdev_video_ops m5mols_video_ops = {
+	.s_stream	= m5mols_s_stream,
+};
+
+static int m5mols_sensor_power(struct m5mols_info *info, bool enable)
+{
+	struct v4l2_subdev *sd = &info->sd;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret;
+
+	if (info->power == enable)
+		return 0;
+
+	if (enable) {
+		if (info->set_power) {
+			ret = info->set_power(&client->dev, 1);
+			if (ret)
+				return ret;
+		}
+
+		ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
+		if (ret) {
+			if (info->set_power)
+				info->set_power(&client->dev, 0);
+			return ret;
+		}
+
+		gpiod_set_value(info->reset, 0);
+		info->power = 1;
+
+		return ret;
+	}
+
+	ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies);
+	if (ret)
+		return ret;
+
+	if (info->set_power)
+		info->set_power(&client->dev, 0);
+
+	gpiod_set_value(info->reset, 1);
+
+	info->isp_ready = 0;
+	info->power = 0;
+
+	return ret;
+}
+
+/* m5mols_update_fw - optional firmware update routine */
+int __attribute__ ((weak)) m5mols_update_fw(struct v4l2_subdev *sd,
+		int (*set_power)(struct m5mols_info *, bool))
+{
+	return 0;
+}
+
+/**
+ * m5mols_fw_start - M-5MOLS internal ARM controller initialization
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ *
+ * Execute the M-5MOLS internal ARM controller initialization sequence.
+ * This function should be called after the supply voltage has been
+ * applied and before any requests to the device are made.
+ */
+static int m5mols_fw_start(struct v4l2_subdev *sd)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	int ret;
+
+	atomic_set(&info->irq_done, 0);
+	/* Wait until I2C slave is initialized in Flash Writer mode */
+	ret = m5mols_busy_wait(sd, FLASH_CAM_START, REG_IN_FLASH_MODE,
+			       M5MOLS_I2C_RDY_WAIT_FL | 0xff, -1);
+	if (!ret)
+		ret = m5mols_write(sd, FLASH_CAM_START, REG_START_ARM_BOOT);
+	if (!ret)
+		ret = m5mols_wait_interrupt(sd, REG_INT_MODE, 2000);
+	if (ret < 0)
+		return ret;
+
+	info->isp_ready = 1;
+
+	ret = m5mols_get_version(sd);
+	if (!ret)
+		ret = m5mols_update_fw(sd, m5mols_sensor_power);
+	if (ret)
+		return ret;
+
+	v4l2_dbg(1, m5mols_debug, sd, "Success ARM Booting\n");
+
+	ret = m5mols_write(sd, PARM_INTERFACE, REG_INTERFACE_MIPI);
+	if (!ret)
+		ret = m5mols_enable_interrupt(sd,
+				REG_INT_AF | REG_INT_CAPTURE);
+
+	return ret;
+}
+
+/* Execute the lens soft-landing algorithm */
+static int m5mols_auto_focus_stop(struct m5mols_info *info)
+{
+	int ret;
+
+	ret = m5mols_write(&info->sd, AF_EXECUTE, REG_AF_STOP);
+	if (!ret)
+		ret = m5mols_write(&info->sd, AF_MODE, REG_AF_POWEROFF);
+	if (!ret)
+		ret = m5mols_busy_wait(&info->sd, SYSTEM_STATUS, REG_AF_IDLE,
+				       0xff, -1);
+	return ret;
+}
+
+/**
+ * m5mols_s_power - Main sensor power control function
+ * @sd: sub-device, as pointed by struct v4l2_subdev
+ * @on: if true, powers on the device; powers off otherwise.
+ *
+ * To prevent breaking the lens when the sensor is powered off the Soft-Landing
+ * algorithm is called where available. The Soft-Landing algorithm availability
+ * dependends on the firmware provider.
+ */
+static int m5mols_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+	int ret;
+
+	mutex_lock(&info->lock);
+
+	if (on) {
+		ret = m5mols_sensor_power(info, true);
+		if (!ret)
+			ret = m5mols_fw_start(sd);
+	} else {
+		if (is_manufacturer(info, REG_SAMSUNG_TECHWIN)) {
+			ret = m5mols_set_mode(info, REG_MONITOR);
+			if (!ret)
+				ret = m5mols_auto_focus_stop(info);
+			if (ret < 0)
+				v4l2_warn(sd, "Soft landing lens failed\n");
+		}
+		ret = m5mols_sensor_power(info, false);
+
+		info->ctrl_sync = 0;
+	}
+
+	mutex_unlock(&info->lock);
+	return ret;
+}
+
+static int m5mols_log_status(struct v4l2_subdev *sd)
+{
+	struct m5mols_info *info = to_m5mols(sd);
+
+	v4l2_ctrl_handler_log_status(&info->handle, sd->name);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_core_ops m5mols_core_ops = {
+	.s_power	= m5mols_s_power,
+	.log_status	= m5mols_log_status,
+};
+
+/*
+ * V4L2 subdev internal operations
+ */
+static int m5mols_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+	struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(sd,
+								       fh->state,
+								       0);
+
+	*format = m5mols_default_ffmt[0];
+	return 0;
+}
+
+static const struct v4l2_subdev_internal_ops m5mols_subdev_internal_ops = {
+	.open		= m5mols_open,
+};
+
+static const struct v4l2_subdev_ops m5mols_ops = {
+	.core		= &m5mols_core_ops,
+	.pad		= &m5mols_pad_ops,
+	.video		= &m5mols_video_ops,
+};
+
+static irqreturn_t m5mols_irq_handler(int irq, void *data)
+{
+	struct m5mols_info *info = to_m5mols(data);
+
+	atomic_set(&info->irq_done, 1);
+	wake_up_interruptible(&info->irq_waitq);
+
+	return IRQ_HANDLED;
+}
+
+static int m5mols_probe(struct i2c_client *client)
+{
+	const struct m5mols_platform_data *pdata = client->dev.platform_data;
+	struct m5mols_info *info;
+	struct v4l2_subdev *sd;
+	int ret;
+
+	if (pdata == NULL) {
+		dev_err(&client->dev, "No platform data\n");
+		return -EINVAL;
+	}
+
+	if (!client->irq) {
+		dev_err(&client->dev, "Interrupt not assigned\n");
+		return -EINVAL;
+	}
+
+	info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	/* This asserts reset, descriptor shall have polarity specified */
+	info->reset = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(info->reset))
+		return PTR_ERR(info->reset);
+	/* Notice: the "N" in M5MOLS_NRST implies active low */
+	gpiod_set_consumer_name(info->reset, "M5MOLS_NRST");
+
+	info->pdata = pdata;
+	info->set_power	= pdata->set_power;
+
+	ret = devm_regulator_bulk_get(&client->dev, ARRAY_SIZE(supplies),
+				      supplies);
+	if (ret) {
+		dev_err(&client->dev, "Failed to get regulators: %d\n", ret);
+		return ret;
+	}
+
+	sd = &info->sd;
+	v4l2_i2c_subdev_init(sd, client, &m5mols_ops);
+	/* Static name; NEVER use in new drivers! */
+	strscpy(sd->name, MODULE_NAME, sizeof(sd->name));
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+	sd->internal_ops = &m5mols_subdev_internal_ops;
+	info->pad.flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&sd->entity, 1, &info->pad);
+	if (ret < 0)
+		return ret;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+	init_waitqueue_head(&info->irq_waitq);
+	mutex_init(&info->lock);
+
+	ret = devm_request_irq(&client->dev, client->irq, m5mols_irq_handler,
+			       IRQF_TRIGGER_RISING, MODULE_NAME, sd);
+	if (ret) {
+		dev_err(&client->dev, "Interrupt request failed: %d\n", ret);
+		goto error;
+	}
+	info->res_type = M5MOLS_RESTYPE_MONITOR;
+	info->ffmt[0] = m5mols_default_ffmt[0];
+	info->ffmt[1] =	m5mols_default_ffmt[1];
+
+	ret = m5mols_sensor_power(info, true);
+	if (ret)
+		goto error;
+
+	ret = m5mols_fw_start(sd);
+	if (!ret)
+		ret = m5mols_init_controls(sd);
+
+	ret = m5mols_sensor_power(info, false);
+	if (!ret)
+		return 0;
+error:
+	media_entity_cleanup(&sd->entity);
+	return ret;
+}
+
+static void m5mols_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	v4l2_ctrl_handler_free(sd->ctrl_handler);
+	media_entity_cleanup(&sd->entity);
+}
+
+static const struct i2c_device_id m5mols_id[] = {
+	{ MODULE_NAME, 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, m5mols_id);
+
+static struct i2c_driver m5mols_i2c_driver = {
+	.driver = {
+		.name	= MODULE_NAME,
+	},
+	.probe_new	= m5mols_probe,
+	.remove		= m5mols_remove,
+	.id_table	= m5mols_id,
+};
+
+module_i2c_driver(m5mols_i2c_driver);
+
+MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>");
+MODULE_AUTHOR("Dongsoo Kim <dongsoo45.kim@samsung.com>");
+MODULE_DESCRIPTION("Fujitsu M-5MOLS 8M Pixel camera driver");
+MODULE_LICENSE("GPL");