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, 1109 insertions, 0 deletions

diff --git a/drivers/pinctrl/cirrus/pinctrl-madera-core.c b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
new file mode 100644
index 000000000..bb589922d
--- /dev/null
+++ b/drivers/pinctrl/cirrus/pinctrl-madera-core.c
@@ -0,0 +1,1109 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Pinctrl for Cirrus Logic Madera codecs
+ *
+ * Copyright (C) 2016-2018 Cirrus Logic
+ */
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+
+#include <linux/mfd/madera/core.h>
+#include <linux/mfd/madera/registers.h>
+
+#include "../pinctrl-utils.h"
+
+#include "pinctrl-madera.h"
+
+/*
+ * Use pin GPIO names for consistency
+ * NOTE: IDs are zero-indexed for coding convenience
+ */
+static const struct pinctrl_pin_desc madera_pins[] = {
+	PINCTRL_PIN(0, "gpio1"),
+	PINCTRL_PIN(1, "gpio2"),
+	PINCTRL_PIN(2, "gpio3"),
+	PINCTRL_PIN(3, "gpio4"),
+	PINCTRL_PIN(4, "gpio5"),
+	PINCTRL_PIN(5, "gpio6"),
+	PINCTRL_PIN(6, "gpio7"),
+	PINCTRL_PIN(7, "gpio8"),
+	PINCTRL_PIN(8, "gpio9"),
+	PINCTRL_PIN(9, "gpio10"),
+	PINCTRL_PIN(10, "gpio11"),
+	PINCTRL_PIN(11, "gpio12"),
+	PINCTRL_PIN(12, "gpio13"),
+	PINCTRL_PIN(13, "gpio14"),
+	PINCTRL_PIN(14, "gpio15"),
+	PINCTRL_PIN(15, "gpio16"),
+	PINCTRL_PIN(16, "gpio17"),
+	PINCTRL_PIN(17, "gpio18"),
+	PINCTRL_PIN(18, "gpio19"),
+	PINCTRL_PIN(19, "gpio20"),
+	PINCTRL_PIN(20, "gpio21"),
+	PINCTRL_PIN(21, "gpio22"),
+	PINCTRL_PIN(22, "gpio23"),
+	PINCTRL_PIN(23, "gpio24"),
+	PINCTRL_PIN(24, "gpio25"),
+	PINCTRL_PIN(25, "gpio26"),
+	PINCTRL_PIN(26, "gpio27"),
+	PINCTRL_PIN(27, "gpio28"),
+	PINCTRL_PIN(28, "gpio29"),
+	PINCTRL_PIN(29, "gpio30"),
+	PINCTRL_PIN(30, "gpio31"),
+	PINCTRL_PIN(31, "gpio32"),
+	PINCTRL_PIN(32, "gpio33"),
+	PINCTRL_PIN(33, "gpio34"),
+	PINCTRL_PIN(34, "gpio35"),
+	PINCTRL_PIN(35, "gpio36"),
+	PINCTRL_PIN(36, "gpio37"),
+	PINCTRL_PIN(37, "gpio38"),
+	PINCTRL_PIN(38, "gpio39"),
+	PINCTRL_PIN(39, "gpio40"),
+};
+
+/*
+ * All single-pin functions can be mapped to any GPIO, however pinmux applies
+ * functions to pin groups and only those groups declared as supporting that
+ * function. To make this work we must put each pin in its own dummy group so
+ * that the functions can be described as applying to all pins.
+ * Since these do not correspond to anything in the actual hardware - they are
+ * merely an adaptation to pinctrl's view of the world - we use the same name
+ * as the pin to avoid confusion when comparing with datasheet instructions
+ */
+static const char * const madera_pin_single_group_names[] = {
+	"gpio1",  "gpio2",  "gpio3",  "gpio4",  "gpio5",  "gpio6",  "gpio7",
+	"gpio8",  "gpio9",  "gpio10", "gpio11", "gpio12", "gpio13", "gpio14",
+	"gpio15", "gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21",
+	"gpio22", "gpio23", "gpio24", "gpio25", "gpio26", "gpio27", "gpio28",
+	"gpio29", "gpio30", "gpio31", "gpio32", "gpio33", "gpio34", "gpio35",
+	"gpio36", "gpio37", "gpio38", "gpio39", "gpio40",
+};
+
+/* set of pin numbers for single-pin groups, zero-indexed */
+static const unsigned int madera_pin_single_group_pins[] = {
+	  0,  1,  2,  3,  4,  5,  6,
+	  7,  8,  9, 10, 11, 12, 13,
+	 14, 15, 16, 17, 18, 19, 20,
+	 21, 22, 23, 24, 25, 26, 27,
+	 28, 29, 30, 31, 32, 33, 34,
+	 35, 36, 37, 38, 39,
+};
+
+static const char * const madera_aif1_group_names[] = { "aif1" };
+static const char * const madera_aif2_group_names[] = { "aif2" };
+static const char * const madera_aif3_group_names[] = { "aif3" };
+static const char * const madera_aif4_group_names[] = { "aif4" };
+static const char * const madera_mif1_group_names[] = { "mif1" };
+static const char * const madera_mif2_group_names[] = { "mif2" };
+static const char * const madera_mif3_group_names[] = { "mif3" };
+static const char * const madera_dmic3_group_names[] = { "dmic3" };
+static const char * const madera_dmic4_group_names[] = { "dmic4" };
+static const char * const madera_dmic5_group_names[] = { "dmic5" };
+static const char * const madera_dmic6_group_names[] = { "dmic6" };
+static const char * const madera_spk1_group_names[] = { "pdmspk1" };
+static const char * const madera_spk2_group_names[] = { "pdmspk2" };
+
+/*
+ * alt-functions always apply to a single pin group, other functions always
+ * apply to all pins
+ */
+static const struct {
+	const char *name;
+	const char * const *group_names;
+	u32 func;
+} madera_mux_funcs[] = {
+	{
+		.name = "aif1",
+		.group_names = madera_aif1_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "aif2",
+		.group_names = madera_aif2_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "aif3",
+		.group_names = madera_aif3_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "aif4",
+		.group_names = madera_aif4_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "mif1",
+		.group_names = madera_mif1_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "mif2",
+		.group_names = madera_mif2_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "mif3",
+		.group_names = madera_mif3_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "dmic3",
+		.group_names = madera_dmic3_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "dmic4",
+		.group_names = madera_dmic4_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "dmic5",
+		.group_names = madera_dmic5_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "dmic6",
+		.group_names = madera_dmic6_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "pdmspk1",
+		.group_names = madera_spk1_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "pdmspk2",
+		.group_names = madera_spk2_group_names,
+		.func = 0x000
+	},
+	{
+		.name = "io",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x001
+	},
+	{
+		.name = "dsp-gpio",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x002
+	},
+	{
+		.name = "irq1",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x003
+	},
+	{
+		.name = "irq2",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x004
+	},
+	{
+		.name = "fll1-clk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x010
+	},
+	{
+		.name = "fll2-clk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x011
+	},
+	{
+		.name = "fll3-clk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x012
+	},
+	{
+		.name = "fllao-clk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x013
+	},
+	{
+		.name = "fll1-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x018
+	},
+	{
+		.name = "fll2-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x019
+	},
+	{
+		.name = "fll3-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x01a
+	},
+	{
+		.name = "fllao-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x01b
+	},
+	{
+		.name = "opclk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x040
+	},
+	{
+		.name = "opclk-async",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x041
+	},
+	{
+		.name = "pwm1",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x048
+	},
+	{
+		.name = "pwm2",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x049
+	},
+	{
+		.name = "spdif",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x04c
+	},
+	{
+		.name = "asrc1-in1-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x088
+	},
+	{
+		.name = "asrc1-in2-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x089
+	},
+	{
+		.name = "asrc2-in1-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x08a
+	},
+	{
+		.name = "asrc2-in2-lock",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x08b
+	},
+	{
+		.name = "spkl-short-circuit",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x0b6
+	},
+	{
+		.name = "spkr-short-circuit",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x0b7
+	},
+	{
+		.name = "spk-shutdown",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x0e0
+	},
+	{
+		.name = "spk-overheat-shutdown",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x0e1
+	},
+	{
+		.name = "spk-overheat-warn",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x0e2
+	},
+	{
+		.name = "timer1-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x140
+	},
+	{
+		.name = "timer2-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x141
+	},
+	{
+		.name = "timer3-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x142
+	},
+	{
+		.name = "timer4-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x143
+	},
+	{
+		.name = "timer5-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x144
+	},
+	{
+		.name = "timer6-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x145
+	},
+	{
+		.name = "timer7-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x146
+	},
+	{
+		.name = "timer8-sts",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x147
+	},
+	{
+		.name = "log1-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x150
+	},
+	{
+		.name = "log2-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x151
+	},
+	{
+		.name = "log3-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x152
+	},
+	{
+		.name = "log4-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x153
+	},
+	{
+		.name = "log5-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x154
+	},
+	{
+		.name = "log6-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x155
+	},
+	{
+		.name = "log7-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x156
+	},
+	{
+		.name = "log8-fifo-ne",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x157
+	},
+	{
+		.name = "aux-pdm-clk",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x280
+	},
+	{
+		.name = "aux-pdm-dat",
+		.group_names = madera_pin_single_group_names,
+		.func = 0x281
+	},
+};
+
+static u16 madera_pin_make_drv_str(struct madera_pin_private *priv,
+				      unsigned int milliamps)
+{
+	switch (milliamps) {
+	case 4:
+		return 0;
+	case 8:
+		return 2 << MADERA_GP1_DRV_STR_SHIFT;
+	default:
+		break;
+	}
+
+	dev_warn(priv->dev, "%u mA not a valid drive strength", milliamps);
+
+	return 0;
+}
+
+static unsigned int madera_pin_unmake_drv_str(struct madera_pin_private *priv,
+					      u16 regval)
+{
+	regval = (regval & MADERA_GP1_DRV_STR_MASK) >> MADERA_GP1_DRV_STR_SHIFT;
+
+	switch (regval) {
+	case 0:
+		return 4;
+	case 2:
+		return 8;
+	default:
+		return 0;
+	}
+}
+
+static int madera_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+
+	/* Number of alt function groups plus number of single-pin groups */
+	return priv->chip->n_pin_groups + priv->chip->n_pins;
+}
+
+static const char *madera_get_group_name(struct pinctrl_dev *pctldev,
+					 unsigned int selector)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+
+	if (selector < priv->chip->n_pin_groups)
+		return priv->chip->pin_groups[selector].name;
+
+	selector -= priv->chip->n_pin_groups;
+	return madera_pin_single_group_names[selector];
+}
+
+static int madera_get_group_pins(struct pinctrl_dev *pctldev,
+				 unsigned int selector,
+				 const unsigned int **pins,
+				 unsigned int *num_pins)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+
+	if (selector < priv->chip->n_pin_groups) {
+		*pins = priv->chip->pin_groups[selector].pins;
+		*num_pins = priv->chip->pin_groups[selector].n_pins;
+	} else {
+		/* return the dummy group for a single pin */
+		selector -= priv->chip->n_pin_groups;
+		*pins = &madera_pin_single_group_pins[selector];
+		*num_pins = 1;
+	}
+	return 0;
+}
+
+static void madera_pin_dbg_show_fn(struct madera_pin_private *priv,
+				   struct seq_file *s,
+				   unsigned int pin, unsigned int fn)
+{
+	const struct madera_pin_chip *chip = priv->chip;
+	int i, g_pin;
+
+	if (fn != 0) {
+		for (i = 0; i < ARRAY_SIZE(madera_mux_funcs); ++i) {
+			if (madera_mux_funcs[i].func == fn) {
+				seq_printf(s, " FN=%s",
+					   madera_mux_funcs[i].name);
+				return;
+			}
+		}
+		return;	/* ignore unknown function values */
+	}
+
+	/* alt function */
+	for (i = 0; i < chip->n_pin_groups; ++i) {
+		for (g_pin = 0; g_pin < chip->pin_groups[i].n_pins; ++g_pin) {
+			if (chip->pin_groups[i].pins[g_pin] == pin) {
+				seq_printf(s, " FN=%s",
+					   chip->pin_groups[i].name);
+				return;
+			}
+		}
+	}
+}
+
+static void __maybe_unused madera_pin_dbg_show(struct pinctrl_dev *pctldev,
+					       struct seq_file *s,
+					       unsigned int pin)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	unsigned int conf[2];
+	unsigned int reg = MADERA_GPIO1_CTRL_1 + (2 * pin);
+	unsigned int fn;
+	int ret;
+
+	ret = regmap_read(priv->madera->regmap, reg, &conf[0]);
+	if (ret)
+		return;
+
+	ret = regmap_read(priv->madera->regmap, reg + 1, &conf[1]);
+	if (ret)
+		return;
+
+	seq_printf(s, "%04x:%04x", conf[0], conf[1]);
+
+	fn = (conf[0] & MADERA_GP1_FN_MASK) >> MADERA_GP1_FN_SHIFT;
+	madera_pin_dbg_show_fn(priv, s, pin, fn);
+
+	/* State of direction bit is only relevant if function==1 */
+	if (fn == 1) {
+		if (conf[1] & MADERA_GP1_DIR_MASK)
+			seq_puts(s, " IN");
+		else
+			seq_puts(s, " OUT");
+	}
+
+	if (conf[1] & MADERA_GP1_PU_MASK)
+		seq_puts(s, " PU");
+
+	if (conf[1] & MADERA_GP1_PD_MASK)
+		seq_puts(s, " PD");
+
+	if (conf[0] & MADERA_GP1_DB_MASK)
+		seq_puts(s, " DB");
+
+	if (conf[0] & MADERA_GP1_OP_CFG_MASK)
+		seq_puts(s, " OD");
+	else
+		seq_puts(s, " CMOS");
+
+	seq_printf(s, " DRV=%umA", madera_pin_unmake_drv_str(priv, conf[1]));
+
+	if (conf[0] & MADERA_GP1_IP_CFG_MASK)
+		seq_puts(s, " SCHMITT");
+}
+
+static const struct pinctrl_ops madera_pin_group_ops = {
+	.get_groups_count = madera_get_groups_count,
+	.get_group_name = madera_get_group_name,
+	.get_group_pins = madera_get_group_pins,
+#if IS_ENABLED(CONFIG_OF)
+	.dt_node_to_map = pinconf_generic_dt_node_to_map_all,
+	.dt_free_map = pinctrl_utils_free_map,
+#endif
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+	.pin_dbg_show = madera_pin_dbg_show,
+#endif
+};
+
+static int madera_mux_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+	return ARRAY_SIZE(madera_mux_funcs);
+}
+
+static const char *madera_mux_get_func_name(struct pinctrl_dev *pctldev,
+					    unsigned int selector)
+{
+	return madera_mux_funcs[selector].name;
+}
+
+static int madera_mux_get_groups(struct pinctrl_dev *pctldev,
+				 unsigned int selector,
+				 const char * const **groups,
+				 unsigned int * const num_groups)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+
+	*groups = madera_mux_funcs[selector].group_names;
+
+	if (madera_mux_funcs[selector].func == 0) {
+		/* alt func always maps to a single group */
+		*num_groups = 1;
+	} else {
+		/* other funcs map to all available gpio pins */
+		*num_groups = priv->chip->n_pins;
+	}
+
+	return 0;
+}
+
+static int madera_mux_set_mux(struct pinctrl_dev *pctldev,
+			      unsigned int selector,
+			      unsigned int group)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	struct madera *madera = priv->madera;
+	const struct madera_pin_groups *pin_group = priv->chip->pin_groups;
+	unsigned int n_chip_groups = priv->chip->n_pin_groups;
+	const char *func_name = madera_mux_funcs[selector].name;
+	unsigned int reg;
+	int i, ret = 0;
+
+	dev_dbg(priv->dev, "%s selecting %u (%s) for group %u (%s)\n",
+		__func__, selector, func_name, group,
+		madera_get_group_name(pctldev, group));
+
+	if (madera_mux_funcs[selector].func == 0) {
+		/* alt func pin assignments are codec-specific */
+		for (i = 0; i < n_chip_groups; ++i) {
+			if (strcmp(func_name, pin_group->name) == 0)
+				break;
+
+			++pin_group;
+		}
+
+		if (i == n_chip_groups)
+			return -EINVAL;
+
+		for (i = 0; i < pin_group->n_pins; ++i) {
+			reg = MADERA_GPIO1_CTRL_1 + (2 * pin_group->pins[i]);
+
+			dev_dbg(priv->dev, "%s setting 0x%x func bits to 0\n",
+				__func__, reg);
+
+			ret = regmap_update_bits(madera->regmap, reg,
+						 MADERA_GP1_FN_MASK, 0);
+			if (ret)
+				break;
+
+		}
+	} else {
+		/*
+		 * for other funcs the group will be the gpio number and will
+		 * be offset by the number of chip-specific functions at the
+		 * start of the group list
+		 */
+		group -= n_chip_groups;
+		reg = MADERA_GPIO1_CTRL_1 + (2 * group);
+
+		dev_dbg(priv->dev, "%s setting 0x%x func bits to 0x%x\n",
+			__func__, reg, madera_mux_funcs[selector].func);
+
+		ret = regmap_update_bits(madera->regmap,
+					 reg,
+					 MADERA_GP1_FN_MASK,
+					 madera_mux_funcs[selector].func);
+	}
+
+	if (ret)
+		dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
+
+	return ret;
+}
+
+static int madera_gpio_set_direction(struct pinctrl_dev *pctldev,
+				     struct pinctrl_gpio_range *range,
+				     unsigned int offset,
+				     bool input)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	struct madera *madera = priv->madera;
+	unsigned int reg = MADERA_GPIO1_CTRL_2 + (2 * offset);
+	unsigned int val;
+	int ret;
+
+	if (input)
+		val = MADERA_GP1_DIR;
+	else
+		val = 0;
+
+	ret = regmap_update_bits(madera->regmap, reg, MADERA_GP1_DIR_MASK, val);
+	if (ret)
+		dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
+
+	return ret;
+}
+
+static int madera_gpio_request_enable(struct pinctrl_dev *pctldev,
+				      struct pinctrl_gpio_range *range,
+				      unsigned int offset)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	struct madera *madera = priv->madera;
+	unsigned int reg = MADERA_GPIO1_CTRL_1 + (2 * offset);
+	int ret;
+
+	/* put the pin into GPIO mode */
+	ret = regmap_update_bits(madera->regmap, reg, MADERA_GP1_FN_MASK, 1);
+	if (ret)
+		dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
+
+	return ret;
+}
+
+static void madera_gpio_disable_free(struct pinctrl_dev *pctldev,
+				     struct pinctrl_gpio_range *range,
+				     unsigned int offset)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	struct madera *madera = priv->madera;
+	unsigned int reg = MADERA_GPIO1_CTRL_1 + (2 * offset);
+	int ret;
+
+	/* disable GPIO by setting to GPIO IN */
+	madera_gpio_set_direction(pctldev, range, offset, true);
+
+	ret = regmap_update_bits(madera->regmap, reg, MADERA_GP1_FN_MASK, 1);
+	if (ret)
+		dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);
+}
+
+static const struct pinmux_ops madera_pin_mux_ops = {
+	.get_functions_count = madera_mux_get_funcs_count,
+	.get_function_name = madera_mux_get_func_name,
+	.get_function_groups = madera_mux_get_groups,
+	.set_mux = madera_mux_set_mux,
+	.gpio_request_enable = madera_gpio_request_enable,
+	.gpio_disable_free = madera_gpio_disable_free,
+	.gpio_set_direction = madera_gpio_set_direction,
+	.strict = true, /* GPIO and other functions are exclusive */
+};
+
+static int madera_pin_conf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+			       unsigned long *config)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	unsigned int param = pinconf_to_config_param(*config);
+	unsigned int result = 0;
+	unsigned int reg = MADERA_GPIO1_CTRL_1 + (2 * pin);
+	unsigned int conf[2];
+	int ret;
+
+	ret = regmap_read(priv->madera->regmap, reg, &conf[0]);
+	if (!ret)
+		ret = regmap_read(priv->madera->regmap, reg + 1, &conf[1]);
+
+	if (ret) {
+		dev_err(priv->dev, "Failed to read GP%d conf (%d)\n",
+			pin + 1, ret);
+		return ret;
+	}
+
+	switch (param) {
+	case PIN_CONFIG_BIAS_BUS_HOLD:
+		conf[1] &= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+		if (conf[1] == (MADERA_GP1_PU | MADERA_GP1_PD))
+			result = 1;
+		break;
+	case PIN_CONFIG_BIAS_DISABLE:
+		conf[1] &= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+		if (!conf[1])
+			result = 1;
+		break;
+	case PIN_CONFIG_BIAS_PULL_DOWN:
+		conf[1] &= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+		if (conf[1] == MADERA_GP1_PD_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_BIAS_PULL_UP:
+		conf[1] &= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+		if (conf[1] == MADERA_GP1_PU_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+		if (conf[0] & MADERA_GP1_OP_CFG_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_DRIVE_PUSH_PULL:
+		if (!(conf[0] & MADERA_GP1_OP_CFG_MASK))
+			result = 1;
+		break;
+	case PIN_CONFIG_DRIVE_STRENGTH:
+		result = madera_pin_unmake_drv_str(priv, conf[1]);
+		break;
+	case PIN_CONFIG_INPUT_DEBOUNCE:
+		if (conf[0] & MADERA_GP1_DB_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_INPUT_ENABLE:
+		if (conf[0] & MADERA_GP1_DIR_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_INPUT_SCHMITT:
+	case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+		if (conf[0] & MADERA_GP1_IP_CFG_MASK)
+			result = 1;
+		break;
+	case PIN_CONFIG_OUTPUT:
+		if ((conf[1] & MADERA_GP1_DIR_MASK) &&
+		    (conf[0] & MADERA_GP1_LVL_MASK))
+			result = 1;
+		break;
+	default:
+		return -ENOTSUPP;
+	}
+
+	*config = pinconf_to_config_packed(param, result);
+
+	return 0;
+}
+
+static int madera_pin_conf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+			       unsigned long *configs, unsigned int num_configs)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	u16 conf[2] = {0, 0};
+	u16 mask[2] = {0, 0};
+	unsigned int reg = MADERA_GPIO1_CTRL_1 + (2 * pin);
+	unsigned int val;
+	int ret;
+
+	while (num_configs) {
+		dev_dbg(priv->dev, "%s config 0x%lx\n", __func__, *configs);
+
+		switch (pinconf_to_config_param(*configs)) {
+		case PIN_CONFIG_BIAS_BUS_HOLD:
+			mask[1] |= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+			conf[1] |= MADERA_GP1_PU | MADERA_GP1_PD;
+			break;
+		case PIN_CONFIG_BIAS_DISABLE:
+			mask[1] |= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+			conf[1] &= ~(MADERA_GP1_PU | MADERA_GP1_PD);
+			break;
+		case PIN_CONFIG_BIAS_PULL_DOWN:
+			mask[1] |= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+			conf[1] |= MADERA_GP1_PD;
+			conf[1] &= ~MADERA_GP1_PU;
+			break;
+		case PIN_CONFIG_BIAS_PULL_UP:
+			mask[1] |= MADERA_GP1_PU_MASK | MADERA_GP1_PD_MASK;
+			conf[1] |= MADERA_GP1_PU;
+			conf[1] &= ~MADERA_GP1_PD;
+			break;
+		case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+			mask[0] |= MADERA_GP1_OP_CFG_MASK;
+			conf[0] |= MADERA_GP1_OP_CFG;
+			break;
+		case PIN_CONFIG_DRIVE_PUSH_PULL:
+			mask[0] |= MADERA_GP1_OP_CFG_MASK;
+			conf[0] &= ~MADERA_GP1_OP_CFG;
+			break;
+		case PIN_CONFIG_DRIVE_STRENGTH:
+			val = pinconf_to_config_argument(*configs);
+			mask[1] |= MADERA_GP1_DRV_STR_MASK;
+			conf[1] &= ~MADERA_GP1_DRV_STR_MASK;
+			conf[1] |= madera_pin_make_drv_str(priv, val);
+			break;
+		case PIN_CONFIG_INPUT_DEBOUNCE:
+			mask[0] |= MADERA_GP1_DB_MASK;
+
+			/*
+			 * we can't configure debounce time per-pin so value
+			 * is just a flag
+			 */
+			val = pinconf_to_config_argument(*configs);
+			if (val)
+				conf[0] |= MADERA_GP1_DB;
+			else
+				conf[0] &= ~MADERA_GP1_DB;
+			break;
+		case PIN_CONFIG_INPUT_ENABLE:
+			val = pinconf_to_config_argument(*configs);
+			mask[1] |= MADERA_GP1_DIR_MASK;
+			if (val)
+				conf[1] |= MADERA_GP1_DIR;
+			else
+				conf[1] &= ~MADERA_GP1_DIR;
+			break;
+		case PIN_CONFIG_INPUT_SCHMITT:
+			val = pinconf_to_config_argument(*configs);
+			mask[0] |= MADERA_GP1_IP_CFG;
+			if (val)
+				conf[0] |= MADERA_GP1_IP_CFG;
+			else
+				conf[0] &= ~MADERA_GP1_IP_CFG;
+
+			mask[1] |= MADERA_GP1_DIR_MASK;
+			conf[1] |= MADERA_GP1_DIR;
+			break;
+		case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+			mask[0] |= MADERA_GP1_IP_CFG;
+			conf[0] |= MADERA_GP1_IP_CFG;
+			mask[1] |= MADERA_GP1_DIR_MASK;
+			conf[1] |= MADERA_GP1_DIR;
+			break;
+		case PIN_CONFIG_OUTPUT:
+			val = pinconf_to_config_argument(*configs);
+			mask[0] |= MADERA_GP1_LVL_MASK;
+			if (val)
+				conf[0] |= MADERA_GP1_LVL;
+			else
+				conf[0] &= ~MADERA_GP1_LVL;
+
+			mask[1] |= MADERA_GP1_DIR_MASK;
+			conf[1] &= ~MADERA_GP1_DIR;
+			break;
+		default:
+			return -ENOTSUPP;
+		}
+
+		++configs;
+		--num_configs;
+	}
+
+	dev_dbg(priv->dev,
+		"%s gpio%d 0x%x:0x%x 0x%x:0x%x\n",
+		__func__, pin + 1, reg, conf[0], reg + 1, conf[1]);
+
+	ret = regmap_update_bits(priv->madera->regmap, reg, mask[0], conf[0]);
+	if (ret)
+		goto err;
+
+	++reg;
+	ret = regmap_update_bits(priv->madera->regmap, reg, mask[1], conf[1]);
+	if (ret)
+		goto err;
+
+	return 0;
+
+err:
+	dev_err(priv->dev,
+		"Failed to write GPIO%d conf (%d) reg 0x%x\n",
+		pin + 1, ret, reg);
+
+	return ret;
+}
+
+static int madera_pin_conf_group_set(struct pinctrl_dev *pctldev,
+				     unsigned int selector,
+				     unsigned long *configs,
+				     unsigned int num_configs)
+{
+	struct madera_pin_private *priv = pinctrl_dev_get_drvdata(pctldev);
+	const struct madera_pin_groups *pin_group;
+	unsigned int n_groups = priv->chip->n_pin_groups;
+	int i, ret;
+
+	dev_dbg(priv->dev, "%s setting group %s\n", __func__,
+		madera_get_group_name(pctldev, selector));
+
+	if (selector >= n_groups) {
+		/* group is a single pin, convert to pin number and set */
+		return madera_pin_conf_set(pctldev,
+					   selector - n_groups,
+					   configs,
+					   num_configs);
+	} else {
+		pin_group = &priv->chip->pin_groups[selector];
+
+		for (i = 0; i < pin_group->n_pins; ++i) {
+			ret = madera_pin_conf_set(pctldev,
+						  pin_group->pins[i],
+						  configs,
+						  num_configs);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+static const struct pinconf_ops madera_pin_conf_ops = {
+	.is_generic = true,
+	.pin_config_get = madera_pin_conf_get,
+	.pin_config_set = madera_pin_conf_set,
+	.pin_config_group_set = madera_pin_conf_group_set,
+};
+
+static struct pinctrl_desc madera_pin_desc = {
+	.name = "madera-pinctrl",
+	.pins = madera_pins,
+	.pctlops = &madera_pin_group_ops,
+	.pmxops = &madera_pin_mux_ops,
+	.confops = &madera_pin_conf_ops,
+	.owner = THIS_MODULE,
+};
+
+static int madera_pin_probe(struct platform_device *pdev)
+{
+	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
+	const struct madera_pdata *pdata = &madera->pdata;
+	struct madera_pin_private *priv;
+	int ret;
+
+	BUILD_BUG_ON(ARRAY_SIZE(madera_pin_single_group_names) !=
+		     ARRAY_SIZE(madera_pin_single_group_pins));
+
+	dev_dbg(&pdev->dev, "%s\n", __func__);
+
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = &pdev->dev;
+	priv->madera = madera;
+
+	switch (madera->type) {
+	case CS47L15:
+		if (IS_ENABLED(CONFIG_PINCTRL_CS47L15))
+			priv->chip = &cs47l15_pin_chip;
+		break;
+	case CS47L35:
+		if (IS_ENABLED(CONFIG_PINCTRL_CS47L35))
+			priv->chip = &cs47l35_pin_chip;
+		break;
+	case CS47L85:
+	case WM1840:
+		if (IS_ENABLED(CONFIG_PINCTRL_CS47L85))
+			priv->chip = &cs47l85_pin_chip;
+		break;
+	case CS47L90:
+	case CS47L91:
+		if (IS_ENABLED(CONFIG_PINCTRL_CS47L90))
+			priv->chip = &cs47l90_pin_chip;
+		break;
+	case CS42L92:
+	case CS47L92:
+	case CS47L93:
+		if (IS_ENABLED(CONFIG_PINCTRL_CS47L92))
+			priv->chip = &cs47l92_pin_chip;
+		break;
+	default:
+		break;
+	}
+
+	if (!priv->chip)
+		return -ENODEV;
+
+	madera_pin_desc.npins = priv->chip->n_pins;
+
+	ret = devm_pinctrl_register_and_init(&pdev->dev,
+					     &madera_pin_desc,
+					     priv,
+					     &priv->pctl);
+	if (ret) {
+		dev_err(priv->dev, "Failed pinctrl register (%d)\n", ret);
+		return ret;
+	}
+
+	/* if the configuration is provided through pdata, apply it */
+	if (pdata->gpio_configs) {
+		ret = pinctrl_register_mappings(pdata->gpio_configs,
+						pdata->n_gpio_configs);
+		if (ret) {
+			dev_err(priv->dev,
+				"Failed to register pdata mappings (%d)\n",
+				ret);
+			return ret;
+		}
+	}
+
+	ret = pinctrl_enable(priv->pctl);
+	if (ret) {
+		dev_err(priv->dev, "Failed to enable pinctrl (%d)\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, priv);
+
+	dev_dbg(priv->dev, "pinctrl probed ok\n");
+
+	return 0;
+}
+
+static int madera_pin_remove(struct platform_device *pdev)
+{
+	struct madera_pin_private *priv = platform_get_drvdata(pdev);
+
+	if (priv->madera->pdata.gpio_configs)
+		pinctrl_unregister_mappings(priv->madera->pdata.gpio_configs);
+
+	return 0;
+}
+
+static struct platform_driver madera_pin_driver = {
+	.probe = madera_pin_probe,
+	.remove = madera_pin_remove,
+	.driver = {
+		.name = "madera-pinctrl",
+	},
+};
+
+module_platform_driver(madera_pin_driver);
+
+MODULE_DESCRIPTION("Madera pinctrl driver");
+MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
+MODULE_LICENSE("GPL v2");