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, 563 insertions, 0 deletions

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm4908.c b/drivers/pinctrl/bcm/pinctrl-bcm4908.c
new file mode 100644
index 000000000..cdfa165fc
--- /dev/null
+++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c
@@ -0,0 +1,563 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/string_helpers.h>
+
+#include "../core.h"
+#include "../pinmux.h"
+
+#define BCM4908_NUM_PINS			86
+
+#define BCM4908_TEST_PORT_BLOCK_EN_LSB			0x00
+#define BCM4908_TEST_PORT_BLOCK_DATA_MSB		0x04
+#define BCM4908_TEST_PORT_BLOCK_DATA_LSB		0x08
+#define  BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT	12
+#define BCM4908_TEST_PORT_COMMAND			0x0c
+#define  BCM4908_TEST_PORT_CMD_LOAD_MUX_REG		0x00000021
+
+struct bcm4908_pinctrl {
+	struct device *dev;
+	void __iomem *base;
+	struct mutex mutex;
+	struct pinctrl_dev *pctldev;
+	struct pinctrl_desc pctldesc;
+};
+
+/*
+ * Groups
+ */
+
+struct bcm4908_pinctrl_pin_setup {
+	unsigned int number;
+	unsigned int function;
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = {
+	{ 0, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = {
+	{ 1, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = {
+	{ 2, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = {
+	{ 3, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = {
+	{ 4, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = {
+	{ 5, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = {
+	{ 6, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = {
+	{ 7, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = {
+	{ 8, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = {
+	{ 9, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = {
+	{ 10, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = {
+	{ 11, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = {
+	{ 12, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = {
+	{ 13, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = {
+	{ 14, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = {
+	{ 15, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = {
+	{ 16, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = {
+	{ 17, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = {
+	{ 18, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = {
+	{ 19, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = {
+	{ 20, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = {
+	{ 21, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = {
+	{ 22, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = {
+	{ 23, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = {
+	{ 24, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = {
+	{ 25, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = {
+	{ 26, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = {
+	{ 27, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = {
+	{ 28, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = {
+	{ 29, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = {
+	{ 30, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = {
+	{ 31, 3 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = {
+	{ 8, 2 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = {
+	{ 9, 2 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = {
+	{ 0, 2 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = {
+	{ 1, 2 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = {
+	{ 30, 2 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = {
+	{ 10, 0 },	/* CTS */
+	{ 11, 0 },	/* RTS */
+	{ 12, 0 },	/* RXD */
+	{ 13, 0 },	/* TXD */
+};
+
+static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = {
+	{ 18, 0 },	/* SDA */
+	{ 19, 0 },	/* SCL */
+};
+
+static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = {
+	{ 22, 0 },	/* SDA */
+	{ 23, 0 },	/* SCL */
+};
+
+static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = {
+	{ 27, 0 },	/* MCLK */
+	{ 28, 0 },	/* LRCK */
+	{ 29, 0 },	/* SDATA */
+	{ 30, 0 },	/* SCLK */
+};
+
+static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = {
+	{ 32, 0 },
+	{ 33, 0 },
+	{ 34, 0 },
+	{ 43, 0 },
+	{ 44, 0 },
+	{ 45, 0 },
+	{ 56, 1 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = {
+	{ 35, 0 },
+	{ 36, 0 },
+	{ 37, 0 },
+	{ 38, 0 },
+	{ 39, 0 },
+	{ 40, 0 },
+	{ 41, 0 },
+	{ 42, 0 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = {
+	{ 46, 0 },
+	{ 47, 0 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = {
+	{ 63, 0 },
+	{ 64, 0 },
+};
+
+static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = {
+	{ 66, 0 },
+	{ 67, 0 },
+};
+
+struct bcm4908_pinctrl_grp {
+	const char *name;
+	const struct bcm4908_pinctrl_pin_setup *pins;
+	const unsigned int num_pins;
+};
+
+static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = {
+	{ "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) },
+	{ "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) },
+	{ "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) },
+	{ "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) },
+	{ "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) },
+	{ "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) },
+	{ "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) },
+	{ "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) },
+	{ "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) },
+	{ "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) },
+	{ "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) },
+	{ "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) },
+	{ "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) },
+	{ "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) },
+	{ "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) },
+	{ "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) },
+	{ "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) },
+	{ "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) },
+	{ "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) },
+	{ "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) },
+	{ "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) },
+	{ "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) },
+	{ "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) },
+	{ "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) },
+	{ "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) },
+	{ "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) },
+	{ "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) },
+	{ "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) },
+	{ "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) },
+	{ "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) },
+	{ "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) },
+	{ "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) },
+	{ "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) },
+	{ "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) },
+	{ "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) },
+	{ "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) },
+	{ "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) },
+	{ "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) },
+	{ "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) },
+	{ "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) },
+	{ "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) },
+	{ "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) },
+	{ "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) },
+	{ "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) },
+	{ "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) },
+	{ "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) },
+};
+
+/*
+ * Functions
+ */
+
+struct bcm4908_pinctrl_function {
+	const char *name;
+	const char * const *groups;
+	const unsigned int num_groups;
+};
+
+static const char * const led_0_groups[] = { "led_0_grp_a" };
+static const char * const led_1_groups[] = { "led_1_grp_a" };
+static const char * const led_2_groups[] = { "led_2_grp_a" };
+static const char * const led_3_groups[] = { "led_3_grp_a" };
+static const char * const led_4_groups[] = { "led_4_grp_a" };
+static const char * const led_5_groups[] = { "led_5_grp_a" };
+static const char * const led_6_groups[] = { "led_6_grp_a" };
+static const char * const led_7_groups[] = { "led_7_grp_a" };
+static const char * const led_8_groups[] = { "led_8_grp_a" };
+static const char * const led_9_groups[] = { "led_9_grp_a" };
+static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" };
+static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" };
+static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" };
+static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" };
+static const char * const led_14_groups[] = { "led_14_grp_a" };
+static const char * const led_15_groups[] = { "led_15_grp_a" };
+static const char * const led_16_groups[] = { "led_16_grp_a" };
+static const char * const led_17_groups[] = { "led_17_grp_a" };
+static const char * const led_18_groups[] = { "led_18_grp_a" };
+static const char * const led_19_groups[] = { "led_19_grp_a" };
+static const char * const led_20_groups[] = { "led_20_grp_a" };
+static const char * const led_21_groups[] = { "led_21_grp_a" };
+static const char * const led_22_groups[] = { "led_22_grp_a" };
+static const char * const led_23_groups[] = { "led_23_grp_a" };
+static const char * const led_24_groups[] = { "led_24_grp_a" };
+static const char * const led_25_groups[] = { "led_25_grp_a" };
+static const char * const led_26_groups[] = { "led_26_grp_a" };
+static const char * const led_27_groups[] = { "led_27_grp_a" };
+static const char * const led_28_groups[] = { "led_28_grp_a" };
+static const char * const led_29_groups[] = { "led_29_grp_a" };
+static const char * const led_30_groups[] = { "led_30_grp_a" };
+static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" };
+static const char * const hs_uart_groups[] = { "hs_uart_grp" };
+static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" };
+static const char * const i2s_groups[] = { "i2s_grp" };
+static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" };
+static const char * const nand_data_groups[] = { "nand_data_grp" };
+static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" };
+static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" };
+static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" };
+
+static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = {
+	{ "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) },
+	{ "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) },
+	{ "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) },
+	{ "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) },
+	{ "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) },
+	{ "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) },
+	{ "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) },
+	{ "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) },
+	{ "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) },
+	{ "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) },
+	{ "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) },
+	{ "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) },
+	{ "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) },
+	{ "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) },
+	{ "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) },
+	{ "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) },
+	{ "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) },
+	{ "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) },
+	{ "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) },
+	{ "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) },
+	{ "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) },
+	{ "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) },
+	{ "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) },
+	{ "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) },
+	{ "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) },
+	{ "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) },
+	{ "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) },
+	{ "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) },
+	{ "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) },
+	{ "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) },
+	{ "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) },
+	{ "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) },
+	{ "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) },
+	{ "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) },
+	{ "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) },
+	{ "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) },
+	{ "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) },
+	{ "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) },
+	{ "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) },
+	{ "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) },
+};
+
+/*
+ * Groups code
+ */
+
+static const struct pinctrl_ops bcm4908_pinctrl_ops = {
+	.get_groups_count = pinctrl_generic_get_group_count,
+	.get_group_name = pinctrl_generic_get_group_name,
+	.get_group_pins = pinctrl_generic_get_group_pins,
+	.dt_node_to_map = pinconf_generic_dt_node_to_map_group,
+	.dt_free_map = pinconf_generic_dt_free_map,
+};
+
+/*
+ * Functions code
+ */
+
+static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev,
+			      unsigned int func_selector,
+			      unsigned int group_selector)
+{
+	struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
+	const struct bcm4908_pinctrl_grp *group;
+	struct group_desc *group_desc;
+	int i;
+
+	group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector);
+	if (!group_desc)
+		return -EINVAL;
+	group = group_desc->data;
+
+	mutex_lock(&bcm4908_pinctrl->mutex);
+	for (i = 0; i < group->num_pins; i++) {
+		u32 lsb = 0;
+
+		lsb |= group->pins[i].number;
+		lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT;
+
+		writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB);
+		writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB);
+		writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG,
+		       bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND);
+	}
+	mutex_unlock(&bcm4908_pinctrl->mutex);
+
+	return 0;
+}
+
+static const struct pinmux_ops bcm4908_pinctrl_pmxops = {
+	.get_functions_count = pinmux_generic_get_function_count,
+	.get_function_name = pinmux_generic_get_function_name,
+	.get_function_groups = pinmux_generic_get_function_groups,
+	.set_mux = bcm4908_pinctrl_set_mux,
+};
+
+/*
+ * Controller code
+ */
+
+static struct pinctrl_desc bcm4908_pinctrl_desc = {
+	.name = "bcm4908-pinctrl",
+	.pctlops = &bcm4908_pinctrl_ops,
+	.pmxops = &bcm4908_pinctrl_pmxops,
+};
+
+static const struct of_device_id bcm4908_pinctrl_of_match_table[] = {
+	{ .compatible = "brcm,bcm4908-pinctrl", },
+	{ }
+};
+
+static int bcm4908_pinctrl_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct bcm4908_pinctrl *bcm4908_pinctrl;
+	struct pinctrl_desc *pctldesc;
+	struct pinctrl_pin_desc *pins;
+	char **pin_names;
+	int i;
+
+	bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL);
+	if (!bcm4908_pinctrl)
+		return -ENOMEM;
+	pctldesc = &bcm4908_pinctrl->pctldesc;
+	platform_set_drvdata(pdev, bcm4908_pinctrl);
+
+	/* Set basic properties */
+
+	bcm4908_pinctrl->dev = dev;
+
+	bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(bcm4908_pinctrl->base))
+		return PTR_ERR(bcm4908_pinctrl->base);
+
+	mutex_init(&bcm4908_pinctrl->mutex);
+
+	memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc));
+
+	/* Set pinctrl properties */
+
+	pin_names = devm_kasprintf_strarray(dev, "pin", BCM4908_NUM_PINS);
+	if (IS_ERR(pin_names))
+		return PTR_ERR(pin_names);
+
+	pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL);
+	if (!pins)
+		return -ENOMEM;
+	for (i = 0; i < BCM4908_NUM_PINS; i++) {
+		pins[i].number = i;
+		pins[i].name = pin_names[i];
+	}
+	pctldesc->pins = pins;
+	pctldesc->npins = BCM4908_NUM_PINS;
+
+	/* Register */
+
+	bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl);
+	if (IS_ERR(bcm4908_pinctrl->pctldev))
+		return dev_err_probe(dev, PTR_ERR(bcm4908_pinctrl->pctldev),
+				     "Failed to register pinctrl\n");
+
+	/* Groups */
+
+	for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) {
+		const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i];
+		int *pins;
+		int j;
+
+		pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL);
+		if (!pins)
+			return -ENOMEM;
+		for (j = 0; j < group->num_pins; j++)
+			pins[j] = group->pins[j].number;
+
+		pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name,
+					  pins, group->num_pins, (void *)group);
+	}
+
+	/* Functions */
+
+	for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) {
+		const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i];
+
+		pinmux_generic_add_function(bcm4908_pinctrl->pctldev,
+					    function->name,
+					    function->groups,
+					    function->num_groups, NULL);
+	}
+
+	return 0;
+}
+
+static struct platform_driver bcm4908_pinctrl_driver = {
+	.probe = bcm4908_pinctrl_probe,
+	.driver = {
+		.name = "bcm4908-pinctrl",
+		.of_match_table = bcm4908_pinctrl_of_match_table,
+	},
+};
+
+module_platform_driver(bcm4908_pinctrl_driver);
+
+MODULE_AUTHOR("Rafał Miłecki");
+MODULE_LICENSE("GPL v2");
+MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table);