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, 440 insertions, 0 deletions

diff --git a/drivers/hwmon/max31730.c b/drivers/hwmon/max31730.c
new file mode 100644
index 000000000..746a767c9
--- /dev/null
+++ b/drivers/hwmon/max31730.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver for MAX31730 3-Channel Remote Temperature Sensor
+ *
+ * Copyright (c) 2019 Guenter Roeck <linux@roeck-us.net>
+ */
+
+#include <linux/bits.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/hwmon.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+/* Addresses scanned */
+static const unsigned short normal_i2c[] = { 0x1c, 0x1d, 0x1e, 0x1f, 0x4c,
+					     0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
+
+/* The MAX31730 registers */
+#define MAX31730_REG_TEMP		0x00
+#define MAX31730_REG_CONF		0x13
+#define  MAX31730_STOP			BIT(7)
+#define  MAX31730_EXTRANGE		BIT(1)
+#define MAX31730_REG_TEMP_OFFSET	0x16
+#define  MAX31730_TEMP_OFFSET_BASELINE	0x77
+#define MAX31730_REG_OFFSET_ENABLE	0x17
+#define MAX31730_REG_TEMP_MAX		0x20
+#define MAX31730_REG_TEMP_MIN		0x30
+#define MAX31730_REG_STATUS_HIGH	0x32
+#define MAX31730_REG_STATUS_LOW		0x33
+#define MAX31730_REG_CHANNEL_ENABLE	0x35
+#define MAX31730_REG_TEMP_FAULT		0x36
+
+#define MAX31730_REG_MFG_ID		0x50
+#define  MAX31730_MFG_ID		0x4d
+#define MAX31730_REG_MFG_REV		0x51
+#define  MAX31730_MFG_REV		0x01
+
+#define MAX31730_TEMP_MIN		(-128000)
+#define MAX31730_TEMP_MAX		127937
+
+/* Each client has this additional data */
+struct max31730_data {
+	struct i2c_client	*client;
+	u8			orig_conf;
+	u8			current_conf;
+	u8			offset_enable;
+	u8			channel_enable;
+};
+
+/*-----------------------------------------------------------------------*/
+
+static inline long max31730_reg_to_mc(s16 temp)
+{
+	return DIV_ROUND_CLOSEST((temp >> 4) * 1000, 16);
+}
+
+static int max31730_write_config(struct max31730_data *data, u8 set_mask,
+				 u8 clr_mask)
+{
+	u8 value;
+
+	clr_mask |= MAX31730_EXTRANGE;
+	value = data->current_conf & ~clr_mask;
+	value |= set_mask;
+
+	if (data->current_conf != value) {
+		s32 err;
+
+		err = i2c_smbus_write_byte_data(data->client, MAX31730_REG_CONF,
+						value);
+		if (err)
+			return err;
+		data->current_conf = value;
+	}
+	return 0;
+}
+
+static int max31730_set_enable(struct i2c_client *client, int reg,
+			       u8 *confdata, int channel, bool enable)
+{
+	u8 regval = *confdata;
+	int err;
+
+	if (enable)
+		regval |= BIT(channel);
+	else
+		regval &= ~BIT(channel);
+
+	if (regval != *confdata) {
+		err = i2c_smbus_write_byte_data(client, reg, regval);
+		if (err)
+			return err;
+		*confdata = regval;
+	}
+	return 0;
+}
+
+static int max31730_set_offset_enable(struct max31730_data *data, int channel,
+				      bool enable)
+{
+	return max31730_set_enable(data->client, MAX31730_REG_OFFSET_ENABLE,
+				   &data->offset_enable, channel, enable);
+}
+
+static int max31730_set_channel_enable(struct max31730_data *data, int channel,
+				       bool enable)
+{
+	return max31730_set_enable(data->client, MAX31730_REG_CHANNEL_ENABLE,
+				   &data->channel_enable, channel, enable);
+}
+
+static int max31730_read(struct device *dev, enum hwmon_sensor_types type,
+			 u32 attr, int channel, long *val)
+{
+	struct max31730_data *data = dev_get_drvdata(dev);
+	int regval, reg, offset;
+
+	if (type != hwmon_temp)
+		return -EINVAL;
+
+	switch (attr) {
+	case hwmon_temp_input:
+		if (!(data->channel_enable & BIT(channel)))
+			return -ENODATA;
+		reg = MAX31730_REG_TEMP + (channel * 2);
+		break;
+	case hwmon_temp_max:
+		reg = MAX31730_REG_TEMP_MAX + (channel * 2);
+		break;
+	case hwmon_temp_min:
+		reg = MAX31730_REG_TEMP_MIN;
+		break;
+	case hwmon_temp_enable:
+		*val = !!(data->channel_enable & BIT(channel));
+		return 0;
+	case hwmon_temp_offset:
+		if (!channel)
+			return -EINVAL;
+		if (!(data->offset_enable & BIT(channel))) {
+			*val = 0;
+			return 0;
+		}
+		offset = i2c_smbus_read_byte_data(data->client,
+						  MAX31730_REG_TEMP_OFFSET);
+		if (offset < 0)
+			return offset;
+		*val = (offset - MAX31730_TEMP_OFFSET_BASELINE) * 125;
+		return 0;
+	case hwmon_temp_fault:
+		regval = i2c_smbus_read_byte_data(data->client,
+						  MAX31730_REG_TEMP_FAULT);
+		if (regval < 0)
+			return regval;
+		*val = !!(regval & BIT(channel));
+		return 0;
+	case hwmon_temp_min_alarm:
+		regval = i2c_smbus_read_byte_data(data->client,
+						  MAX31730_REG_STATUS_LOW);
+		if (regval < 0)
+			return regval;
+		*val = !!(regval & BIT(channel));
+		return 0;
+	case hwmon_temp_max_alarm:
+		regval = i2c_smbus_read_byte_data(data->client,
+						  MAX31730_REG_STATUS_HIGH);
+		if (regval < 0)
+			return regval;
+		*val = !!(regval & BIT(channel));
+		return 0;
+	default:
+		return -EINVAL;
+	}
+	regval = i2c_smbus_read_word_swapped(data->client, reg);
+	if (regval < 0)
+		return regval;
+
+	*val = max31730_reg_to_mc(regval);
+
+	return 0;
+}
+
+static int max31730_write(struct device *dev, enum hwmon_sensor_types type,
+			  u32 attr, int channel, long val)
+{
+	struct max31730_data *data = dev_get_drvdata(dev);
+	int reg, err;
+
+	if (type != hwmon_temp)
+		return -EINVAL;
+
+	switch (attr) {
+	case hwmon_temp_max:
+		reg = MAX31730_REG_TEMP_MAX + channel * 2;
+		break;
+	case hwmon_temp_min:
+		reg = MAX31730_REG_TEMP_MIN;
+		break;
+	case hwmon_temp_enable:
+		if (val != 0 && val != 1)
+			return -EINVAL;
+		return max31730_set_channel_enable(data, channel, val);
+	case hwmon_temp_offset:
+		val = clamp_val(val, -14875, 17000) + 14875;
+		val = DIV_ROUND_CLOSEST(val, 125);
+		err = max31730_set_offset_enable(data, channel,
+					val != MAX31730_TEMP_OFFSET_BASELINE);
+		if (err)
+			return err;
+		return i2c_smbus_write_byte_data(data->client,
+						 MAX31730_REG_TEMP_OFFSET, val);
+	default:
+		return -EINVAL;
+	}
+
+	val = clamp_val(val, MAX31730_TEMP_MIN, MAX31730_TEMP_MAX);
+	val = DIV_ROUND_CLOSEST(val << 4, 1000) << 4;
+
+	return i2c_smbus_write_word_swapped(data->client, reg, (u16)val);
+}
+
+static umode_t max31730_is_visible(const void *data,
+				   enum hwmon_sensor_types type,
+				   u32 attr, int channel)
+{
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+		case hwmon_temp_min_alarm:
+		case hwmon_temp_max_alarm:
+		case hwmon_temp_fault:
+			return 0444;
+		case hwmon_temp_min:
+			return channel ? 0444 : 0644;
+		case hwmon_temp_offset:
+		case hwmon_temp_enable:
+		case hwmon_temp_max:
+			return 0644;
+		}
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static const struct hwmon_channel_info *max31730_info[] = {
+	HWMON_CHANNEL_INFO(chip,
+			   HWMON_C_REGISTER_TZ),
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+			   HWMON_T_ENABLE |
+			   HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM,
+			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+			   HWMON_T_OFFSET | HWMON_T_ENABLE |
+			   HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
+			   HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+			   HWMON_T_OFFSET | HWMON_T_ENABLE |
+			   HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
+			   HWMON_T_FAULT,
+			   HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
+			   HWMON_T_OFFSET | HWMON_T_ENABLE |
+			   HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM |
+			   HWMON_T_FAULT
+			   ),
+	NULL
+};
+
+static const struct hwmon_ops max31730_hwmon_ops = {
+	.is_visible = max31730_is_visible,
+	.read = max31730_read,
+	.write = max31730_write,
+};
+
+static const struct hwmon_chip_info max31730_chip_info = {
+	.ops = &max31730_hwmon_ops,
+	.info = max31730_info,
+};
+
+static void max31730_remove(void *data)
+{
+	struct max31730_data *max31730 = data;
+	struct i2c_client *client = max31730->client;
+
+	i2c_smbus_write_byte_data(client, MAX31730_REG_CONF,
+				  max31730->orig_conf);
+}
+
+static int
+max31730_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct max31730_data *data;
+	int status, err;
+
+	if (!i2c_check_functionality(client->adapter,
+			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+		return -EIO;
+
+	data = devm_kzalloc(dev, sizeof(struct max31730_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->client = client;
+
+	/* Cache original configuration and enable status */
+	status = i2c_smbus_read_byte_data(client, MAX31730_REG_CHANNEL_ENABLE);
+	if (status < 0)
+		return status;
+	data->channel_enable = status;
+
+	status = i2c_smbus_read_byte_data(client, MAX31730_REG_OFFSET_ENABLE);
+	if (status < 0)
+		return status;
+	data->offset_enable = status;
+
+	status = i2c_smbus_read_byte_data(client, MAX31730_REG_CONF);
+	if (status < 0)
+		return status;
+	data->orig_conf = status;
+	data->current_conf = status;
+
+	err = max31730_write_config(data,
+				    data->channel_enable ? 0 : MAX31730_STOP,
+				    data->channel_enable ? MAX31730_STOP : 0);
+	if (err)
+		return err;
+
+	dev_set_drvdata(dev, data);
+
+	err = devm_add_action_or_reset(dev, max31730_remove, data);
+	if (err)
+		return err;
+
+	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
+							 data,
+							 &max31730_chip_info,
+							 NULL);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id max31730_ids[] = {
+	{ "max31730", 0, },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max31730_ids);
+
+static const struct of_device_id __maybe_unused max31730_of_match[] = {
+	{
+		.compatible = "maxim,max31730",
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, max31730_of_match);
+
+static bool max31730_check_reg_temp(struct i2c_client *client,
+				    int reg)
+{
+	int regval;
+
+	regval = i2c_smbus_read_byte_data(client, reg + 1);
+	return regval < 0 || (regval & 0x0f);
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int max31730_detect(struct i2c_client *client,
+			   struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	int regval;
+	int i;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
+				     I2C_FUNC_SMBUS_WORD_DATA))
+		return -ENODEV;
+
+	regval = i2c_smbus_read_byte_data(client, MAX31730_REG_MFG_ID);
+	if (regval != MAX31730_MFG_ID)
+		return -ENODEV;
+	regval = i2c_smbus_read_byte_data(client, MAX31730_REG_MFG_REV);
+	if (regval != MAX31730_MFG_REV)
+		return -ENODEV;
+
+	/* lower 4 bit of temperature and limit registers must be 0 */
+	if (max31730_check_reg_temp(client, MAX31730_REG_TEMP_MIN))
+		return -ENODEV;
+
+	for (i = 0; i < 4; i++) {
+		if (max31730_check_reg_temp(client, MAX31730_REG_TEMP + i * 2))
+			return -ENODEV;
+		if (max31730_check_reg_temp(client,
+					    MAX31730_REG_TEMP_MAX + i * 2))
+			return -ENODEV;
+	}
+
+	strscpy(info->type, "max31730", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int max31730_suspend(struct device *dev)
+{
+	struct max31730_data *data = dev_get_drvdata(dev);
+
+	return max31730_write_config(data, MAX31730_STOP, 0);
+}
+
+static int max31730_resume(struct device *dev)
+{
+	struct max31730_data *data = dev_get_drvdata(dev);
+
+	return max31730_write_config(data, 0, MAX31730_STOP);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(max31730_pm_ops, max31730_suspend, max31730_resume);
+
+static struct i2c_driver max31730_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "max31730",
+		.of_match_table = of_match_ptr(max31730_of_match),
+		.pm	= pm_sleep_ptr(&max31730_pm_ops),
+	},
+	.probe_new	= max31730_probe,
+	.id_table	= max31730_ids,
+	.detect		= max31730_detect,
+	.address_list	= normal_i2c,
+};
+
+module_i2c_driver(max31730_driver);
+
+MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
+MODULE_DESCRIPTION("MAX31730 driver");
+MODULE_LICENSE("GPL");