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, 538 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
new file mode 100644
index 000000000..29dd503f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
@@ -0,0 +1,538 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,pmic-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm PMIC GPIO block
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+  This binding describes the GPIO block(s) found in the 8xxx series of
+  PMIC's from Qualcomm.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,pm2250-gpio
+          - qcom,pm660-gpio
+          - qcom,pm660l-gpio
+          - qcom,pm6125-gpio
+          - qcom,pm6150-gpio
+          - qcom,pm6150l-gpio
+          - qcom,pm6350-gpio
+          - qcom,pm7250b-gpio
+          - qcom,pm7325-gpio
+          - qcom,pm8005-gpio
+          - qcom,pm8008-gpio
+          - qcom,pm8018-gpio
+          - qcom,pm8019-gpio
+          - qcom,pm8038-gpio
+          - qcom,pm8058-gpio
+          - qcom,pm8150-gpio
+          - qcom,pm8150b-gpio
+          - qcom,pm8150l-gpio
+          - qcom,pm8226-gpio
+          - qcom,pm8350-gpio
+          - qcom,pm8350b-gpio
+          - qcom,pm8350c-gpio
+          - qcom,pm8450-gpio
+          - qcom,pm8916-gpio
+          - qcom,pm8917-gpio
+          - qcom,pm8921-gpio
+          - qcom,pm8941-gpio
+          - qcom,pm8950-gpio
+          - qcom,pm8994-gpio
+          - qcom,pm8998-gpio
+          - qcom,pma8084-gpio
+          - qcom,pmi8950-gpio
+          - qcom,pmi8994-gpio
+          - qcom,pmi8998-gpio
+          - qcom,pmk8350-gpio
+          - qcom,pmm8155au-gpio
+          - qcom,pmp8074-gpio
+          - qcom,pmr735a-gpio
+          - qcom,pmr735b-gpio
+          - qcom,pms405-gpio
+          - qcom,pmx55-gpio
+          - qcom,pmx65-gpio
+
+      - enum:
+          - qcom,spmi-gpio
+          - qcom,ssbi-gpio
+
+  reg:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+  gpio-controller: true
+
+  gpio-ranges:
+    maxItems: 1
+
+  gpio-line-names:
+    minItems: 2
+    maxItems: 44
+
+  gpio-reserved-ranges:
+    minItems: 1
+    # maxItems as half of total number of GPIOs, as there has to be at
+    # least one usable GPIO between each reserved range.
+    maxItems: 22
+
+  '#gpio-cells':
+    const: 2
+    description:
+      The first cell will be used to define gpio number and the
+      second denotes the flags for this gpio
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - '#gpio-cells'
+  - gpio-ranges
+  - interrupt-controller
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8008-gpio
+              - qcom,pmi8950-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 2
+          maxItems: 2
+        gpio-reserved-ranges:
+          maxItems: 1
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8005-gpio
+              - qcom,pm8450-gpio
+              - qcom,pm8916-gpio
+              - qcom,pmk8350-gpio
+              - qcom,pmr735a-gpio
+              - qcom,pmr735b-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 4
+          maxItems: 4
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8018-gpio
+              - qcom,pm8019-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 6
+          maxItems: 6
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 3
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8226-gpio
+              - qcom,pm8350b-gpio
+              - qcom,pm8950-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 8
+          maxItems: 8
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 4
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm6350-gpio
+              - qcom,pm8350c-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 9
+          maxItems: 9
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 5
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm2250-gpio
+              - qcom,pm6150-gpio
+              - qcom,pm7325-gpio
+              - qcom,pm8150-gpio
+              - qcom,pm8350-gpio
+              - qcom,pmc8180-gpio
+              - qcom,pmi8994-gpio
+              - qcom,pmm8155au-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 10
+          maxItems: 10
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 5
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pmx55-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 11
+          maxItems: 11
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 6
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm660l-gpio
+              - qcom,pm6150l-gpio
+              - qcom,pm7250b-gpio
+              - qcom,pm8038-gpio
+              - qcom,pm8150b-gpio
+              - qcom,pm8150l-gpio
+              - qcom,pmc8180c-gpio
+              - qcom,pmp8074-gpio
+              - qcom,pms405-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 12
+          maxItems: 12
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 6
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm660-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 13
+          maxItems: 13
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 7
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pmi8998-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 14
+          maxItems: 14
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 7
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pmx65-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 16
+          maxItems: 16
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 8
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8994-gpio
+              - qcom,pma8084-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 22
+          maxItems: 22
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 11
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8998-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 26
+          maxItems: 26
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 13
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8941-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 36
+          maxItems: 36
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 18
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8917-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 38
+          maxItems: 38
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 19
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pm8058-gpio
+              - qcom,pm8921-gpio
+    then:
+      properties:
+        gpio-line-names:
+          minItems: 44
+          maxItems: 44
+        gpio-reserved-ranges:
+          minItems: 1
+          maxItems: 22
+
+patternProperties:
+  '-state$':
+    oneOf:
+      - $ref: "#/$defs/qcom-pmic-gpio-state"
+      - patternProperties:
+          "(pinconf|-pins)$":
+            $ref: "#/$defs/qcom-pmic-gpio-state"
+        additionalProperties: false
+
+$defs:
+  qcom-pmic-gpio-state:
+    type: object
+    allOf:
+      - $ref: "pinmux-node.yaml"
+      - $ref: "pincfg-node.yaml"
+    properties:
+      pins:
+        description:
+          List of gpio pins affected by the properties specified in
+          this subnode.  Valid pins are
+                 - gpio1-gpio9 for pm6125
+                 - gpio1-gpio10 for pm6150
+                 - gpio1-gpio12 for pm6150l
+                 - gpio1-gpio9 for pm6350
+                 - gpio1-gpio12 for pm7250b
+                 - gpio1-gpio10 for pm7325
+                 - gpio1-gpio4 for pm8005
+                 - gpio1-gpio2 for pm8008
+                 - gpio1-gpio6 for pm8018
+                 - gpio1-gpio12 for pm8038
+                 - gpio1-gpio40 for pm8058
+                 - gpio1-gpio10 for pm8150 (holes on gpio2, gpio5,
+                                            gpio7 and gpio8)
+                 - gpio1-gpio12 for pm8150b (holes on gpio3, gpio4
+                                             and gpio7)
+                 - gpio1-gpio12 for pm8150l (hole on gpio7)
+                 - gpio1-gpio4 for pm8916
+                 - gpio1-gpio10 for pm8350
+                 - gpio1-gpio8 for pm8350b
+                 - gpio1-gpio9 for pm8350c
+                 - gpio1-gpio4 for pm8450
+                 - gpio1-gpio38 for pm8917
+                 - gpio1-gpio44 for pm8921
+                 - gpio1-gpio36 for pm8941
+                 - gpio1-gpio8 for pm8950 (hole on gpio3)
+                 - gpio1-gpio22 for pm8994
+                 - gpio1-gpio26 for pm8998
+                 - gpio1-gpio22 for pma8084
+                 - gpio1-gpio2 for pmi8950
+                 - gpio1-gpio10 for pmi8994
+                 - gpio1-gpio4 for pmk8350
+                 - gpio1-gpio10 for pmm8155au
+                 - gpio1-gpio12 for pmp8074 (holes on gpio1 and gpio12)
+                 - gpio1-gpio4 for pmr735a
+                 - gpio1-gpio4 for pmr735b
+                 - gpio1-gpio12 for pms405 (holes on gpio1, gpio9
+                                            and gpio10)
+                 - gpio1-gpio11 for pmx55 (holes on gpio3, gpio7, gpio10
+                                            and gpio11)
+                 - gpio1-gpio16 for pmx65
+
+        items:
+          pattern: "^gpio([0-9]+)$"
+
+      function:
+        items:
+          - enum:
+              - normal
+              - paired
+              - func1
+              - func2
+              - dtest1
+              - dtest2
+              - dtest3
+              - dtest4
+              - func3  # supported by LV/MV GPIO subtypes
+              - func4  # supported by LV/MV GPIO subtypes
+
+      bias-disable: true
+      bias-pull-down: true
+      bias-pull-up: true
+
+      qcom,pull-up-strength:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Specifies the strength to use for pull up, if selected.
+          Valid values are defined in
+          <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+          If this property is omitted 30uA strength will be used
+          if pull up is selected
+        enum: [0, 1, 2, 3]
+
+      bias-high-impedance: true
+      input-enable: true
+      input-disable: true
+      output-high: true
+      output-low: true
+      output-enable: true
+      output-disable: true
+      power-source: true
+
+      qcom,drive-strength:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Selects the drive strength for the specified pins
+          Valid drive strength values are defined in
+          <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+        enum: [0, 1, 2, 3]
+
+      drive-push-pull: true
+      drive-open-drain: true
+      drive-open-source: true
+
+      qcom,analog-pass:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description:
+          The specified pins are configured in
+          analog-pass-through mode.
+
+      qcom,atest:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Selects ATEST rail to route to GPIO when it's
+          configured in analog-pass-through mode.
+        enum: [1, 2, 3, 4]
+
+      qcom,dtest-buffer:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Selects DTEST rail to route to GPIO when it's
+          configured as digital input.
+        enum: [1, 2, 3, 4]
+
+    required:
+      - pins
+      - function
+
+    additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+
+    pm8921_gpio: gpio@150 {
+      compatible = "qcom,pm8921-gpio", "qcom,ssbi-gpio";
+      reg = <0x150 0x160>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      gpio-controller;
+      gpio-ranges = <&pm8921_gpio 0 0 44>;
+      #gpio-cells = <2>;
+
+      pm8921_gpio_keys: gpio-keys-state {
+        volume-keys-pins {
+          pins = "gpio20", "gpio21";
+          function = "normal";
+
+          input-enable;
+          bias-pull-up;
+          drive-push-pull;
+          qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
+          power-source = <PM8921_GPIO_S4>;
+        };
+      };
+    };
+...