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, 466 insertions, 0 deletions

diff --git a/drivers/hwmon/smpro-hwmon.c b/drivers/hwmon/smpro-hwmon.c
new file mode 100644
index 000000000..a76c49dd8
--- /dev/null
+++ b/drivers/hwmon/smpro-hwmon.c
@@ -0,0 +1,466 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Ampere Computing SoC's SMPro Hardware Monitoring Driver
+ *
+ * Copyright (c) 2022, Ampere Computing LLC
+ */
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+
+/* Logical Power Sensor Registers */
+#define SOC_TEMP		0x10
+#define SOC_VRD_TEMP		0x11
+#define DIMM_VRD_TEMP		0x12
+#define CORE_VRD_TEMP		0x13
+#define CH0_DIMM_TEMP		0x14
+#define CH1_DIMM_TEMP		0x15
+#define CH2_DIMM_TEMP		0x16
+#define CH3_DIMM_TEMP		0x17
+#define CH4_DIMM_TEMP		0x18
+#define CH5_DIMM_TEMP		0x19
+#define CH6_DIMM_TEMP		0x1A
+#define CH7_DIMM_TEMP		0x1B
+#define RCA_VRD_TEMP		0x1C
+
+#define CORE_VRD_PWR		0x20
+#define SOC_PWR			0x21
+#define DIMM_VRD1_PWR		0x22
+#define DIMM_VRD2_PWR		0x23
+#define CORE_VRD_PWR_MW		0x26
+#define SOC_PWR_MW		0x27
+#define DIMM_VRD1_PWR_MW	0x28
+#define DIMM_VRD2_PWR_MW	0x29
+#define RCA_VRD_PWR		0x2A
+#define RCA_VRD_PWR_MW		0x2B
+
+#define MEM_HOT_THRESHOLD	0x32
+#define SOC_VR_HOT_THRESHOLD	0x33
+#define CORE_VRD_VOLT		0x34
+#define SOC_VRD_VOLT		0x35
+#define DIMM_VRD1_VOLT		0x36
+#define DIMM_VRD2_VOLT		0x37
+#define RCA_VRD_VOLT		0x38
+
+#define CORE_VRD_CURR		0x39
+#define SOC_VRD_CURR		0x3A
+#define DIMM_VRD1_CURR		0x3B
+#define DIMM_VRD2_CURR		0x3C
+#define RCA_VRD_CURR		0x3D
+
+struct smpro_hwmon {
+	struct regmap *regmap;
+};
+
+struct smpro_sensor {
+	const u8 reg;
+	const u8 reg_ext;
+	const char *label;
+};
+
+static const struct smpro_sensor temperature[] = {
+	{
+		.reg = SOC_TEMP,
+		.label = "temp1 SoC"
+	},
+	{
+		.reg = SOC_VRD_TEMP,
+		.reg_ext = SOC_VR_HOT_THRESHOLD,
+		.label = "temp2 SoC VRD"
+	},
+	{
+		.reg = DIMM_VRD_TEMP,
+		.label = "temp3 DIMM VRD"
+	},
+	{
+		.reg = CORE_VRD_TEMP,
+		.label = "temp4 CORE VRD"
+	},
+	{
+		.reg = CH0_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp5 CH0 DIMM"
+	},
+	{
+		.reg = CH1_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp6 CH1 DIMM"
+	},
+	{
+		.reg = CH2_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp7 CH2 DIMM"
+	},
+	{
+		.reg = CH3_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp8 CH3 DIMM"
+	},
+	{
+		.reg = CH4_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp9 CH4 DIMM"
+	},
+	{
+		.reg = CH5_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp10 CH5 DIMM"
+	},
+	{
+		.reg = CH6_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp11 CH6 DIMM"
+	},
+	{
+		.reg = CH7_DIMM_TEMP,
+		.reg_ext = MEM_HOT_THRESHOLD,
+		.label = "temp12 CH7 DIMM"
+	},
+	{
+		.reg = RCA_VRD_TEMP,
+		.label = "temp13 RCA VRD"
+	},
+};
+
+static const struct smpro_sensor voltage[] = {
+	{
+		.reg = CORE_VRD_VOLT,
+		.label = "vout0 CORE VRD"
+	},
+	{
+		.reg = SOC_VRD_VOLT,
+		.label = "vout1 SoC VRD"
+	},
+	{
+		.reg = DIMM_VRD1_VOLT,
+		.label = "vout2 DIMM VRD1"
+	},
+	{
+		.reg = DIMM_VRD2_VOLT,
+		.label = "vout3 DIMM VRD2"
+	},
+	{
+		.reg = RCA_VRD_VOLT,
+		.label = "vout4 RCA VRD"
+	},
+};
+
+static const struct smpro_sensor curr_sensor[] = {
+	{
+		.reg = CORE_VRD_CURR,
+		.label = "iout1 CORE VRD"
+	},
+	{
+		.reg = SOC_VRD_CURR,
+		.label = "iout2 SoC VRD"
+	},
+	{
+		.reg = DIMM_VRD1_CURR,
+		.label = "iout3 DIMM VRD1"
+	},
+	{
+		.reg = DIMM_VRD2_CURR,
+		.label = "iout4 DIMM VRD2"
+	},
+	{
+		.reg = RCA_VRD_CURR,
+		.label = "iout5 RCA VRD"
+	},
+};
+
+static const struct smpro_sensor power[] = {
+	{
+		.reg = CORE_VRD_PWR,
+		.reg_ext = CORE_VRD_PWR_MW,
+		.label = "power1 CORE VRD"
+	},
+	{
+		.reg = SOC_PWR,
+		.reg_ext = SOC_PWR_MW,
+		.label = "power2 SoC"
+	},
+	{
+		.reg = DIMM_VRD1_PWR,
+		.reg_ext = DIMM_VRD1_PWR_MW,
+		.label = "power3 DIMM VRD1"
+	},
+	{
+		.reg = DIMM_VRD2_PWR,
+		.reg_ext = DIMM_VRD2_PWR_MW,
+		.label = "power4 DIMM VRD2"
+	},
+	{
+		.reg = RCA_VRD_PWR,
+		.reg_ext = RCA_VRD_PWR_MW,
+		.label = "power5 RCA VRD"
+	},
+};
+
+static int smpro_read_temp(struct device *dev, u32 attr, int channel, long *val)
+{
+	struct smpro_hwmon *hwmon = dev_get_drvdata(dev);
+	unsigned int value;
+	int ret;
+
+	switch (attr) {
+	case hwmon_temp_input:
+		ret = regmap_read(hwmon->regmap, temperature[channel].reg, &value);
+		if (ret)
+			return ret;
+		break;
+	case hwmon_temp_crit:
+		ret = regmap_read(hwmon->regmap, temperature[channel].reg_ext, &value);
+		if (ret)
+			return ret;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	*val = sign_extend32(value, 8) * 1000;
+	return 0;
+}
+
+static int smpro_read_in(struct device *dev, u32 attr, int channel, long *val)
+{
+	struct smpro_hwmon *hwmon = dev_get_drvdata(dev);
+	unsigned int value;
+	int ret;
+
+	switch (attr) {
+	case hwmon_in_input:
+		ret = regmap_read(hwmon->regmap, voltage[channel].reg, &value);
+		if (ret < 0)
+			return ret;
+		/* 15-bit value in 1mV */
+		*val = value & 0x7fff;
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int smpro_read_curr(struct device *dev, u32 attr, int channel, long *val)
+{
+	struct smpro_hwmon *hwmon = dev_get_drvdata(dev);
+	unsigned int value;
+	int ret;
+
+	switch (attr) {
+	case hwmon_curr_input:
+		ret = regmap_read(hwmon->regmap, curr_sensor[channel].reg, &value);
+		if (ret < 0)
+			return ret;
+		/* Scale reported by the hardware is 1mA */
+		*val = value & 0x7fff;
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int smpro_read_power(struct device *dev, u32 attr, int channel, long *val_pwr)
+{
+	struct smpro_hwmon *hwmon = dev_get_drvdata(dev);
+	unsigned int val = 0, val_mw = 0;
+	int ret;
+
+	switch (attr) {
+	case hwmon_power_input:
+		ret = regmap_read(hwmon->regmap, power[channel].reg, &val);
+		if (ret)
+			return ret;
+
+		ret = regmap_read(hwmon->regmap, power[channel].reg_ext, &val_mw);
+		if (ret)
+			return ret;
+		/* 10-bit value */
+		*val_pwr = (val & 0x3ff) * 1000000 + (val_mw & 0x3ff) * 1000;
+		return 0;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int smpro_read(struct device *dev, enum hwmon_sensor_types type,
+		      u32 attr, int channel, long *val)
+{
+	switch (type) {
+	case hwmon_temp:
+		return smpro_read_temp(dev, attr, channel, val);
+	case hwmon_in:
+		return smpro_read_in(dev, attr, channel, val);
+	case hwmon_power:
+		return smpro_read_power(dev, attr, channel, val);
+	case hwmon_curr:
+		return smpro_read_curr(dev, attr, channel, val);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int smpro_read_string(struct device *dev, enum hwmon_sensor_types type,
+			     u32 attr, int channel, const char **str)
+{
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_label:
+			*str = temperature[channel].label;
+			return 0;
+		default:
+			break;
+		}
+		break;
+
+	case hwmon_in:
+		switch (attr) {
+		case hwmon_in_label:
+			*str = voltage[channel].label;
+			return 0;
+		default:
+			break;
+		}
+		break;
+
+	case hwmon_curr:
+		switch (attr) {
+		case hwmon_curr_label:
+			*str = curr_sensor[channel].label;
+			return 0;
+		default:
+			break;
+		}
+		break;
+
+	case hwmon_power:
+		switch (attr) {
+		case hwmon_power_label:
+			*str = power[channel].label;
+			return 0;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static umode_t smpro_is_visible(const void *data, enum hwmon_sensor_types type,
+				u32 attr, int channel)
+{
+	const struct smpro_hwmon *hwmon = data;
+	unsigned int value;
+	int ret;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+		case hwmon_temp_label:
+		case hwmon_temp_crit:
+			ret = regmap_read(hwmon->regmap, temperature[channel].reg, &value);
+			if (ret || value == 0xFFFF)
+				return 0;
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0444;
+}
+
+static const struct hwmon_channel_info *smpro_info[] = {
+	HWMON_CHANNEL_INFO(temp,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_CRIT,
+			   HWMON_T_INPUT | HWMON_T_LABEL),
+	HWMON_CHANNEL_INFO(in,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL,
+			   HWMON_I_INPUT | HWMON_I_LABEL),
+	HWMON_CHANNEL_INFO(power,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL,
+			   HWMON_P_INPUT | HWMON_P_LABEL),
+	HWMON_CHANNEL_INFO(curr,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL,
+			   HWMON_C_INPUT | HWMON_C_LABEL),
+	NULL
+};
+
+static const struct hwmon_ops smpro_hwmon_ops = {
+	.is_visible = smpro_is_visible,
+	.read = smpro_read,
+	.read_string = smpro_read_string,
+};
+
+static const struct hwmon_chip_info smpro_chip_info = {
+	.ops = &smpro_hwmon_ops,
+	.info = smpro_info,
+};
+
+static int smpro_hwmon_probe(struct platform_device *pdev)
+{
+	struct smpro_hwmon *hwmon;
+	struct device *hwmon_dev;
+
+	hwmon = devm_kzalloc(&pdev->dev, sizeof(struct smpro_hwmon), GFP_KERNEL);
+	if (!hwmon)
+		return -ENOMEM;
+
+	hwmon->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!hwmon->regmap)
+		return -ENODEV;
+
+	hwmon_dev = devm_hwmon_device_register_with_info(&pdev->dev, "smpro_hwmon",
+							 hwmon, &smpro_chip_info, NULL);
+
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static struct platform_driver smpro_hwmon_driver = {
+	.probe		= smpro_hwmon_probe,
+	.driver = {
+		.name	= "smpro-hwmon",
+	},
+};
+
+module_platform_driver(smpro_hwmon_driver);
+
+MODULE_AUTHOR("Thu Nguyen <thu@os.amperecomputing.com>");
+MODULE_AUTHOR("Quan Nguyen <quan@os.amperecomputing.com>");
+MODULE_DESCRIPTION("Ampere Altra SMPro hwmon driver");
+MODULE_LICENSE("GPL");