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, 492 insertions, 0 deletions

diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c
new file mode 100644
index 000000000..7890c0993
--- /dev/null
+++ b/drivers/iio/potentiometer/mcp4131.c
@@ -0,0 +1,492 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Industrial I/O driver for Microchip digital potentiometers
+ *
+ * Copyright (c) 2016 Slawomir Stepien
+ * Based on: Peter Rosin's code from mcp4531.c
+ *
+ * Datasheet: https://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf
+ *
+ * DEVID	#Wipers	#Positions	Resistor Opts (kOhm)
+ * mcp4131	1	129		5, 10, 50, 100
+ * mcp4132	1	129		5, 10, 50, 100
+ * mcp4141	1	129		5, 10, 50, 100
+ * mcp4142	1	129		5, 10, 50, 100
+ * mcp4151	1	257		5, 10, 50, 100
+ * mcp4152	1	257		5, 10, 50, 100
+ * mcp4161	1	257		5, 10, 50, 100
+ * mcp4162	1	257		5, 10, 50, 100
+ * mcp4231	2	129		5, 10, 50, 100
+ * mcp4232	2	129		5, 10, 50, 100
+ * mcp4241	2	129		5, 10, 50, 100
+ * mcp4242	2	129		5, 10, 50, 100
+ * mcp4251	2	257		5, 10, 50, 100
+ * mcp4252	2	257		5, 10, 50, 100
+ * mcp4261	2	257		5, 10, 50, 100
+ * mcp4262	2	257		5, 10, 50, 100
+ */
+
+/*
+ * TODO:
+ * 1. Write wiper setting to EEPROM for EEPROM capable models.
+ */
+
+#include <linux/cache.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/types.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/mutex.h>
+#include <linux/property.h>
+#include <linux/spi/spi.h>
+
+#define MCP4131_WRITE		(0x00 << 2)
+#define MCP4131_READ		(0x03 << 2)
+
+#define MCP4131_WIPER_SHIFT	4
+#define MCP4131_CMDERR(r)	((r[0]) & 0x02)
+#define MCP4131_RAW(r)		((r[0]) == 0xff ? 0x100 : (r[1]))
+
+struct mcp4131_cfg {
+	int wipers;
+	int max_pos;
+	int kohms;
+};
+
+enum mcp4131_type {
+	MCP413x_502 = 0,
+	MCP413x_103,
+	MCP413x_503,
+	MCP413x_104,
+	MCP414x_502,
+	MCP414x_103,
+	MCP414x_503,
+	MCP414x_104,
+	MCP415x_502,
+	MCP415x_103,
+	MCP415x_503,
+	MCP415x_104,
+	MCP416x_502,
+	MCP416x_103,
+	MCP416x_503,
+	MCP416x_104,
+	MCP423x_502,
+	MCP423x_103,
+	MCP423x_503,
+	MCP423x_104,
+	MCP424x_502,
+	MCP424x_103,
+	MCP424x_503,
+	MCP424x_104,
+	MCP425x_502,
+	MCP425x_103,
+	MCP425x_503,
+	MCP425x_104,
+	MCP426x_502,
+	MCP426x_103,
+	MCP426x_503,
+	MCP426x_104,
+};
+
+static const struct mcp4131_cfg mcp4131_cfg[] = {
+	[MCP413x_502] = { .wipers = 1, .max_pos = 128, .kohms =   5, },
+	[MCP413x_103] = { .wipers = 1, .max_pos = 128, .kohms =  10, },
+	[MCP413x_503] = { .wipers = 1, .max_pos = 128, .kohms =  50, },
+	[MCP413x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, },
+	[MCP414x_502] = { .wipers = 1, .max_pos = 128, .kohms =   5, },
+	[MCP414x_103] = { .wipers = 1, .max_pos = 128, .kohms =  10, },
+	[MCP414x_503] = { .wipers = 1, .max_pos = 128, .kohms =  50, },
+	[MCP414x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, },
+	[MCP415x_502] = { .wipers = 1, .max_pos = 256, .kohms =   5, },
+	[MCP415x_103] = { .wipers = 1, .max_pos = 256, .kohms =  10, },
+	[MCP415x_503] = { .wipers = 1, .max_pos = 256, .kohms =  50, },
+	[MCP415x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, },
+	[MCP416x_502] = { .wipers = 1, .max_pos = 256, .kohms =   5, },
+	[MCP416x_103] = { .wipers = 1, .max_pos = 256, .kohms =  10, },
+	[MCP416x_503] = { .wipers = 1, .max_pos = 256, .kohms =  50, },
+	[MCP416x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, },
+	[MCP423x_502] = { .wipers = 2, .max_pos = 128, .kohms =   5, },
+	[MCP423x_103] = { .wipers = 2, .max_pos = 128, .kohms =  10, },
+	[MCP423x_503] = { .wipers = 2, .max_pos = 128, .kohms =  50, },
+	[MCP423x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, },
+	[MCP424x_502] = { .wipers = 2, .max_pos = 128, .kohms =   5, },
+	[MCP424x_103] = { .wipers = 2, .max_pos = 128, .kohms =  10, },
+	[MCP424x_503] = { .wipers = 2, .max_pos = 128, .kohms =  50, },
+	[MCP424x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, },
+	[MCP425x_502] = { .wipers = 2, .max_pos = 256, .kohms =   5, },
+	[MCP425x_103] = { .wipers = 2, .max_pos = 256, .kohms =  10, },
+	[MCP425x_503] = { .wipers = 2, .max_pos = 256, .kohms =  50, },
+	[MCP425x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, },
+	[MCP426x_502] = { .wipers = 2, .max_pos = 256, .kohms =   5, },
+	[MCP426x_103] = { .wipers = 2, .max_pos = 256, .kohms =  10, },
+	[MCP426x_503] = { .wipers = 2, .max_pos = 256, .kohms =  50, },
+	[MCP426x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, },
+};
+
+struct mcp4131_data {
+	struct spi_device *spi;
+	const struct mcp4131_cfg *cfg;
+	struct mutex lock;
+	u8 buf[2] __aligned(IIO_DMA_MINALIGN);
+};
+
+#define MCP4131_CHANNEL(ch) {					\
+	.type = IIO_RESISTANCE,					\
+	.indexed = 1,						\
+	.output = 1,						\
+	.channel = (ch),					\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+}
+
+static const struct iio_chan_spec mcp4131_channels[] = {
+	MCP4131_CHANNEL(0),
+	MCP4131_CHANNEL(1),
+};
+
+static int mcp4131_read(struct spi_device *spi, void *buf, size_t len)
+{
+	struct spi_transfer t = {
+		.tx_buf = buf, /* We need to send addr, cmd and 12 bits */
+		.rx_buf	= buf,
+		.len = len,
+	};
+	struct spi_message m;
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t, &m);
+
+	return spi_sync(spi, &m);
+}
+
+static int mcp4131_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long mask)
+{
+	int err;
+	struct mcp4131_data *data = iio_priv(indio_dev);
+	int address = chan->channel;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&data->lock);
+
+		data->buf[0] = (address << MCP4131_WIPER_SHIFT) | MCP4131_READ;
+		data->buf[1] = 0;
+
+		err = mcp4131_read(data->spi, data->buf, 2);
+		if (err) {
+			mutex_unlock(&data->lock);
+			return err;
+		}
+
+		/* Error, bad address/command combination */
+		if (!MCP4131_CMDERR(data->buf)) {
+			mutex_unlock(&data->lock);
+			return -EIO;
+		}
+
+		*val = MCP4131_RAW(data->buf);
+		mutex_unlock(&data->lock);
+
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+		*val = 1000 * data->cfg->kohms;
+		*val2 = data->cfg->max_pos;
+		return IIO_VAL_FRACTIONAL;
+	}
+
+	return -EINVAL;
+}
+
+static int mcp4131_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	int err;
+	struct mcp4131_data *data = iio_priv(indio_dev);
+	int address = chan->channel << MCP4131_WIPER_SHIFT;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (val > data->cfg->max_pos || val < 0)
+			return -EINVAL;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&data->lock);
+
+	data->buf[0] = address << MCP4131_WIPER_SHIFT;
+	data->buf[0] |= MCP4131_WRITE | (val >> 8);
+	data->buf[1] = val & 0xFF; /* 8 bits here */
+
+	err = spi_write(data->spi, data->buf, 2);
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static const struct iio_info mcp4131_info = {
+	.read_raw = mcp4131_read_raw,
+	.write_raw = mcp4131_write_raw,
+};
+
+static int mcp4131_probe(struct spi_device *spi)
+{
+	int err;
+	struct device *dev = &spi->dev;
+	unsigned long devid;
+	struct mcp4131_data *data;
+	struct iio_dev *indio_dev;
+
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	spi_set_drvdata(spi, indio_dev);
+	data->spi = spi;
+	data->cfg = device_get_match_data(&spi->dev);
+	if (!data->cfg) {
+		devid = spi_get_device_id(spi)->driver_data;
+		data->cfg = &mcp4131_cfg[devid];
+	}
+
+	mutex_init(&data->lock);
+
+	indio_dev->info = &mcp4131_info;
+	indio_dev->channels = mcp4131_channels;
+	indio_dev->num_channels = data->cfg->wipers;
+	indio_dev->name = spi_get_device_id(spi)->name;
+
+	err = devm_iio_device_register(dev, indio_dev);
+	if (err) {
+		dev_info(&spi->dev, "Unable to register %s\n", indio_dev->name);
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id mcp4131_dt_ids[] = {
+	{ .compatible = "microchip,mcp4131-502",
+		.data = &mcp4131_cfg[MCP413x_502] },
+	{ .compatible = "microchip,mcp4131-103",
+		.data = &mcp4131_cfg[MCP413x_103] },
+	{ .compatible = "microchip,mcp4131-503",
+		.data = &mcp4131_cfg[MCP413x_503] },
+	{ .compatible = "microchip,mcp4131-104",
+		.data = &mcp4131_cfg[MCP413x_104] },
+	{ .compatible = "microchip,mcp4132-502",
+		.data = &mcp4131_cfg[MCP413x_502] },
+	{ .compatible = "microchip,mcp4132-103",
+		.data = &mcp4131_cfg[MCP413x_103] },
+	{ .compatible = "microchip,mcp4132-503",
+		.data = &mcp4131_cfg[MCP413x_503] },
+	{ .compatible = "microchip,mcp4132-104",
+		.data = &mcp4131_cfg[MCP413x_104] },
+	{ .compatible = "microchip,mcp4141-502",
+		.data = &mcp4131_cfg[MCP414x_502] },
+	{ .compatible = "microchip,mcp4141-103",
+		.data = &mcp4131_cfg[MCP414x_103] },
+	{ .compatible = "microchip,mcp4141-503",
+		.data = &mcp4131_cfg[MCP414x_503] },
+	{ .compatible = "microchip,mcp4141-104",
+		.data = &mcp4131_cfg[MCP414x_104] },
+	{ .compatible = "microchip,mcp4142-502",
+		.data = &mcp4131_cfg[MCP414x_502] },
+	{ .compatible = "microchip,mcp4142-103",
+		.data = &mcp4131_cfg[MCP414x_103] },
+	{ .compatible = "microchip,mcp4142-503",
+		.data = &mcp4131_cfg[MCP414x_503] },
+	{ .compatible = "microchip,mcp4142-104",
+		.data = &mcp4131_cfg[MCP414x_104] },
+	{ .compatible = "microchip,mcp4151-502",
+		.data = &mcp4131_cfg[MCP415x_502] },
+	{ .compatible = "microchip,mcp4151-103",
+		.data = &mcp4131_cfg[MCP415x_103] },
+	{ .compatible = "microchip,mcp4151-503",
+		.data = &mcp4131_cfg[MCP415x_503] },
+	{ .compatible = "microchip,mcp4151-104",
+		.data = &mcp4131_cfg[MCP415x_104] },
+	{ .compatible = "microchip,mcp4152-502",
+		.data = &mcp4131_cfg[MCP415x_502] },
+	{ .compatible = "microchip,mcp4152-103",
+		.data = &mcp4131_cfg[MCP415x_103] },
+	{ .compatible = "microchip,mcp4152-503",
+		.data = &mcp4131_cfg[MCP415x_503] },
+	{ .compatible = "microchip,mcp4152-104",
+		.data = &mcp4131_cfg[MCP415x_104] },
+	{ .compatible = "microchip,mcp4161-502",
+		.data = &mcp4131_cfg[MCP416x_502] },
+	{ .compatible = "microchip,mcp4161-103",
+		.data = &mcp4131_cfg[MCP416x_103] },
+	{ .compatible = "microchip,mcp4161-503",
+		.data = &mcp4131_cfg[MCP416x_503] },
+	{ .compatible = "microchip,mcp4161-104",
+		.data = &mcp4131_cfg[MCP416x_104] },
+	{ .compatible = "microchip,mcp4162-502",
+		.data = &mcp4131_cfg[MCP416x_502] },
+	{ .compatible = "microchip,mcp4162-103",
+		.data = &mcp4131_cfg[MCP416x_103] },
+	{ .compatible = "microchip,mcp4162-503",
+		.data = &mcp4131_cfg[MCP416x_503] },
+	{ .compatible = "microchip,mcp4162-104",
+		.data = &mcp4131_cfg[MCP416x_104] },
+	{ .compatible = "microchip,mcp4231-502",
+		.data = &mcp4131_cfg[MCP423x_502] },
+	{ .compatible = "microchip,mcp4231-103",
+		.data = &mcp4131_cfg[MCP423x_103] },
+	{ .compatible = "microchip,mcp4231-503",
+		.data = &mcp4131_cfg[MCP423x_503] },
+	{ .compatible = "microchip,mcp4231-104",
+		.data = &mcp4131_cfg[MCP423x_104] },
+	{ .compatible = "microchip,mcp4232-502",
+		.data = &mcp4131_cfg[MCP423x_502] },
+	{ .compatible = "microchip,mcp4232-103",
+		.data = &mcp4131_cfg[MCP423x_103] },
+	{ .compatible = "microchip,mcp4232-503",
+		.data = &mcp4131_cfg[MCP423x_503] },
+	{ .compatible = "microchip,mcp4232-104",
+		.data = &mcp4131_cfg[MCP423x_104] },
+	{ .compatible = "microchip,mcp4241-502",
+		.data = &mcp4131_cfg[MCP424x_502] },
+	{ .compatible = "microchip,mcp4241-103",
+		.data = &mcp4131_cfg[MCP424x_103] },
+	{ .compatible = "microchip,mcp4241-503",
+		.data = &mcp4131_cfg[MCP424x_503] },
+	{ .compatible = "microchip,mcp4241-104",
+		.data = &mcp4131_cfg[MCP424x_104] },
+	{ .compatible = "microchip,mcp4242-502",
+		.data = &mcp4131_cfg[MCP424x_502] },
+	{ .compatible = "microchip,mcp4242-103",
+		.data = &mcp4131_cfg[MCP424x_103] },
+	{ .compatible = "microchip,mcp4242-503",
+		.data = &mcp4131_cfg[MCP424x_503] },
+	{ .compatible = "microchip,mcp4242-104",
+		.data = &mcp4131_cfg[MCP424x_104] },
+	{ .compatible = "microchip,mcp4251-502",
+		.data = &mcp4131_cfg[MCP425x_502] },
+	{ .compatible = "microchip,mcp4251-103",
+		.data = &mcp4131_cfg[MCP425x_103] },
+	{ .compatible = "microchip,mcp4251-503",
+		.data = &mcp4131_cfg[MCP425x_503] },
+	{ .compatible = "microchip,mcp4251-104",
+		.data = &mcp4131_cfg[MCP425x_104] },
+	{ .compatible = "microchip,mcp4252-502",
+		.data = &mcp4131_cfg[MCP425x_502] },
+	{ .compatible = "microchip,mcp4252-103",
+		.data = &mcp4131_cfg[MCP425x_103] },
+	{ .compatible = "microchip,mcp4252-503",
+		.data = &mcp4131_cfg[MCP425x_503] },
+	{ .compatible = "microchip,mcp4252-104",
+		.data = &mcp4131_cfg[MCP425x_104] },
+	{ .compatible = "microchip,mcp4261-502",
+		.data = &mcp4131_cfg[MCP426x_502] },
+	{ .compatible = "microchip,mcp4261-103",
+		.data = &mcp4131_cfg[MCP426x_103] },
+	{ .compatible = "microchip,mcp4261-503",
+		.data = &mcp4131_cfg[MCP426x_503] },
+	{ .compatible = "microchip,mcp4261-104",
+		.data = &mcp4131_cfg[MCP426x_104] },
+	{ .compatible = "microchip,mcp4262-502",
+		.data = &mcp4131_cfg[MCP426x_502] },
+	{ .compatible = "microchip,mcp4262-103",
+		.data = &mcp4131_cfg[MCP426x_103] },
+	{ .compatible = "microchip,mcp4262-503",
+		.data = &mcp4131_cfg[MCP426x_503] },
+	{ .compatible = "microchip,mcp4262-104",
+		.data = &mcp4131_cfg[MCP426x_104] },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mcp4131_dt_ids);
+
+static const struct spi_device_id mcp4131_id[] = {
+	{ "mcp4131-502", MCP413x_502 },
+	{ "mcp4131-103", MCP413x_103 },
+	{ "mcp4131-503", MCP413x_503 },
+	{ "mcp4131-104", MCP413x_104 },
+	{ "mcp4132-502", MCP413x_502 },
+	{ "mcp4132-103", MCP413x_103 },
+	{ "mcp4132-503", MCP413x_503 },
+	{ "mcp4132-104", MCP413x_104 },
+	{ "mcp4141-502", MCP414x_502 },
+	{ "mcp4141-103", MCP414x_103 },
+	{ "mcp4141-503", MCP414x_503 },
+	{ "mcp4141-104", MCP414x_104 },
+	{ "mcp4142-502", MCP414x_502 },
+	{ "mcp4142-103", MCP414x_103 },
+	{ "mcp4142-503", MCP414x_503 },
+	{ "mcp4142-104", MCP414x_104 },
+	{ "mcp4151-502", MCP415x_502 },
+	{ "mcp4151-103", MCP415x_103 },
+	{ "mcp4151-503", MCP415x_503 },
+	{ "mcp4151-104", MCP415x_104 },
+	{ "mcp4152-502", MCP415x_502 },
+	{ "mcp4152-103", MCP415x_103 },
+	{ "mcp4152-503", MCP415x_503 },
+	{ "mcp4152-104", MCP415x_104 },
+	{ "mcp4161-502", MCP416x_502 },
+	{ "mcp4161-103", MCP416x_103 },
+	{ "mcp4161-503", MCP416x_503 },
+	{ "mcp4161-104", MCP416x_104 },
+	{ "mcp4162-502", MCP416x_502 },
+	{ "mcp4162-103", MCP416x_103 },
+	{ "mcp4162-503", MCP416x_503 },
+	{ "mcp4162-104", MCP416x_104 },
+	{ "mcp4231-502", MCP423x_502 },
+	{ "mcp4231-103", MCP423x_103 },
+	{ "mcp4231-503", MCP423x_503 },
+	{ "mcp4231-104", MCP423x_104 },
+	{ "mcp4232-502", MCP423x_502 },
+	{ "mcp4232-103", MCP423x_103 },
+	{ "mcp4232-503", MCP423x_503 },
+	{ "mcp4232-104", MCP423x_104 },
+	{ "mcp4241-502", MCP424x_502 },
+	{ "mcp4241-103", MCP424x_103 },
+	{ "mcp4241-503", MCP424x_503 },
+	{ "mcp4241-104", MCP424x_104 },
+	{ "mcp4242-502", MCP424x_502 },
+	{ "mcp4242-103", MCP424x_103 },
+	{ "mcp4242-503", MCP424x_503 },
+	{ "mcp4242-104", MCP424x_104 },
+	{ "mcp4251-502", MCP425x_502 },
+	{ "mcp4251-103", MCP425x_103 },
+	{ "mcp4251-503", MCP425x_503 },
+	{ "mcp4251-104", MCP425x_104 },
+	{ "mcp4252-502", MCP425x_502 },
+	{ "mcp4252-103", MCP425x_103 },
+	{ "mcp4252-503", MCP425x_503 },
+	{ "mcp4252-104", MCP425x_104 },
+	{ "mcp4261-502", MCP426x_502 },
+	{ "mcp4261-103", MCP426x_103 },
+	{ "mcp4261-503", MCP426x_503 },
+	{ "mcp4261-104", MCP426x_104 },
+	{ "mcp4262-502", MCP426x_502 },
+	{ "mcp4262-103", MCP426x_103 },
+	{ "mcp4262-503", MCP426x_503 },
+	{ "mcp4262-104", MCP426x_104 },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, mcp4131_id);
+
+static struct spi_driver mcp4131_driver = {
+	.driver = {
+		.name	= "mcp4131",
+		.of_match_table = mcp4131_dt_ids,
+	},
+	.probe		= mcp4131_probe,
+	.id_table	= mcp4131_id,
+};
+
+module_spi_driver(mcp4131_driver);
+
+MODULE_AUTHOR("Slawomir Stepien <sst@poczta.fm>");
+MODULE_DESCRIPTION("MCP4131 digital potentiometer");
+MODULE_LICENSE("GPL v2");