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, 1707 insertions, 0 deletions

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
new file mode 100644
index 000000000..c85726a68
--- /dev/null
+++ b/drivers/gpio/Kconfig
@@ -0,0 +1,1707 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# GPIO infrastructure and drivers
+#
+
+config ARCH_HAVE_CUSTOM_GPIO_H
+	bool
+	help
+	  Selecting this config option from the architecture Kconfig allows
+	  the architecture to provide a custom asm/gpio.h implementation
+	  overriding the default implementations.  New uses of this are
+	  strongly discouraged.
+
+menuconfig GPIOLIB
+	bool "GPIO Support"
+	help
+	  This enables GPIO support through the generic GPIO library.
+	  You only need to enable this if you also want to enable
+	  one or more of the GPIO drivers below.
+
+	  If unsure, say N.
+
+if GPIOLIB
+
+config GPIOLIB_FASTPATH_LIMIT
+	int "Maximum number of GPIOs for fast path"
+	range 32 512
+	default 512
+	help
+	  This adjusts the point at which certain APIs will switch from
+	  using a stack allocated buffer to a dynamically allocated buffer.
+
+	  You shouldn't need to change this unless you really need to
+	  optimize either stack space or performance. Change this carefully
+	  since setting an incorrect value could cause stack corruption.
+
+config OF_GPIO
+	def_bool y
+	depends on OF
+	depends on HAS_IOMEM
+
+config GPIO_ACPI
+	def_bool y
+	depends on ACPI
+
+config GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN
+	bool
+
+config DEBUG_GPIO
+	bool "Debug GPIO calls"
+	depends on DEBUG_KERNEL
+	help
+	  Say Y here to add some extra checks and diagnostics to GPIO calls.
+	  These checks help ensure that GPIOs have been properly initialized
+	  before they are used, and that sleeping calls are not made from
+	  non-sleeping contexts.  They can make bitbanged serial protocols
+	  slower.  The diagnostics help catch the type of setup errors
+	  that are most common when setting up new platforms or boards.
+
+config GPIO_SYSFS
+	bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
+	depends on SYSFS
+	select GPIO_CDEV # We need to encourage the new ABI
+	help
+	  Say Y here to add the legacy sysfs interface for GPIOs.
+
+	  This ABI is deprecated. If you want to use GPIO from userspace,
+	  use the character device /dev/gpiochipN with the appropriate
+	  ioctl() operations instead.
+
+config GPIO_CDEV
+	bool
+	prompt "Character device (/dev/gpiochipN) support" if EXPERT
+	default y
+	help
+	  Say Y here to add the character device /dev/gpiochipN interface
+	  for GPIOs. The character device allows userspace to control GPIOs
+	  using ioctl() operations.
+
+	  Only say N if you are sure that the GPIO character device is not
+	  required.
+
+	  If unsure, say Y.
+
+config GPIO_CDEV_V1
+	bool "Support GPIO ABI Version 1"
+	default y
+	depends on GPIO_CDEV
+	help
+	  Say Y here to support version 1 of the GPIO CDEV ABI.
+
+	  This ABI version is deprecated.
+	  Please use the latest ABI for new developments.
+
+	  If unsure, say Y.
+
+config GPIO_GENERIC
+	depends on HAS_IOMEM # Only for IOMEM drivers
+	tristate
+
+config GPIO_REGMAP
+	depends on REGMAP
+	tristate
+
+# put drivers in the right section, in alphabetical order
+
+# This symbol is selected by both I2C and SPI expanders
+config GPIO_MAX730X
+	tristate
+
+config GPIO_IDIO_16
+	tristate
+	help
+	  Enables support for the idio-16 library functions. The idio-16 library
+	  provides functions to facilitate communication with devices within the
+	  ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
+
+	  If built as a module its name will be gpio-idio-16.
+
+menu "Memory mapped GPIO drivers"
+	depends on HAS_IOMEM
+
+config GPIO_74XX_MMIO
+	tristate "GPIO driver for 74xx-ICs with MMIO access"
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	help
+	  Say yes here to support GPIO functionality for 74xx-compatible ICs
+	  with MMIO access. Compatible models include:
+	    1 bit:	741G125 (Input), 741G74 (Output)
+	    2 bits:	742G125 (Input), 7474 (Output)
+	    4 bits:	74125 (Input), 74175 (Output)
+	    6 bits:	74365 (Input), 74174 (Output)
+	    8 bits:	74244 (Input), 74273 (Output)
+	    16 bits:	741624 (Input), 7416374 (Output)
+
+config GPIO_ALTERA
+	tristate "Altera GPIO"
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y or M here to build support for the Altera PIO device.
+
+	  If driver is built as a module it will be called gpio-altera.
+
+config GPIO_AMDPT
+	tristate "AMD Promontory GPIO support"
+	depends on ACPI
+	select GPIO_GENERIC
+	help
+	  Driver for GPIO functionality on Promontory IOHub.
+	  Requires ACPI ASL code to enumerate as a platform device.
+
+config GPIO_ASPEED
+	tristate "Aspeed GPIO support"
+	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
+
+config GPIO_ASPEED_SGPIO
+	bool "Aspeed SGPIO support"
+	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here to support Aspeed AST2500 SGPIO functionality.
+
+config GPIO_ATH79
+	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
+	default y if ATH79
+	depends on ATH79 || COMPILE_TEST
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Select this option to enable GPIO driver for
+	  Atheros AR71XX/AR724X/AR913X SoC devices.
+
+config GPIO_RASPBERRYPI_EXP
+	tristate "Raspberry Pi 3 GPIO Expander"
+	default RASPBERRYPI_FIRMWARE
+	depends on OF_GPIO
+	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
+	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
+	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
+	help
+	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
+	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
+
+config GPIO_BCM_KONA
+	bool "Broadcom Kona GPIO"
+	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
+	help
+	  Turn on GPIO support for Broadcom "Kona" chips.
+
+config GPIO_BCM_XGS_IPROC
+	tristate "BRCM XGS iProc GPIO support"
+	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	default ARCH_BCM_IPROC
+	help
+	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
+
+config GPIO_BRCMSTB
+	tristate "BRCMSTB GPIO support"
+	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
+	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
+	select GPIO_GENERIC
+	select IRQ_DOMAIN
+	help
+	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
+
+config GPIO_CADENCE
+	tristate "Cadence GPIO support"
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to enable support for Cadence GPIO controller.
+
+config GPIO_CLPS711X
+	tristate "CLPS711X GPIO support"
+	depends on ARCH_CLPS711X || COMPILE_TEST
+	select GPIO_GENERIC
+	help
+	  Say yes here to support GPIO on CLPS711X SoCs.
+
+config GPIO_DAVINCI
+	tristate "TI Davinci/Keystone GPIO support"
+	default y if ARCH_DAVINCI
+	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
+	help
+	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
+
+config GPIO_DWAPB
+	tristate "Synopsys DesignWare APB GPIO driver"
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y or M here to build support for the Synopsys DesignWare APB
+	  GPIO block.
+
+config GPIO_EIC_SPRD
+	tristate "Spreadtrum EIC support"
+	depends on ARCH_SPRD || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support Spreadtrum EIC device.
+
+config GPIO_EM
+	tristate "Emma Mobile GPIO"
+	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
+	help
+	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
+
+config GPIO_EN7523
+	tristate "Airoha GPIO support"
+	depends on ARCH_AIROHA
+	default ARCH_AIROHA
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y or M here to support the GPIO controller block on the
+	  Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
+
+config GPIO_EP93XX
+	def_bool y
+	depends on ARCH_EP93XX
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+
+config GPIO_EXAR
+	tristate "Support for GPIO pins on XR17V352/354/358"
+	depends on SERIAL_8250_EXAR
+	select REGMAP_MMIO
+	help
+	  Selecting this option will enable handling of GPIO pins present
+	  on Exar XR17V352/354/358 chips.
+
+config GPIO_GE_FPGA
+	bool "GE FPGA based GPIO"
+	depends on GE_FPGA
+	select GPIO_GENERIC
+	help
+	  Support for common GPIO functionality provided on some GE Single Board
+	  Computers.
+
+	  This driver provides basic support (configure as input or output, read
+	  and write pin state) for GPIO implemented in a number of GE single
+	  board computers.
+
+config GPIO_FTGPIO010
+	bool "Faraday FTGPIO010 GPIO"
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	default (ARCH_GEMINI || ARCH_MOXART)
+	help
+	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
+	  Cortina systems Gemini platforms, Moxa ART and others.
+
+config GPIO_GENERIC_PLATFORM
+	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
+	select GPIO_GENERIC
+	help
+	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
+
+config GPIO_GRGPIO
+	tristate "Aeroflex Gaisler GRGPIO support"
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select IRQ_DOMAIN
+	help
+	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
+	  VHDL IP core library.
+
+config GPIO_HISI
+	tristate "HiSilicon GPIO controller driver"
+	depends on ARM64 || COMPILE_TEST
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y or M here to build support for the HiSilicon GPIO controller
+	  driver GPIO block.
+	  This GPIO controller supports double-edge interrupt and multi-core
+	  concurrent access.
+
+config GPIO_HLWD
+	tristate "Nintendo Wii (Hollywood) GPIO"
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Select this to support the GPIO controller of the Nintendo Wii.
+
+	  If unsure, say N.
+
+config GPIO_ICH
+	tristate "Intel ICH GPIO"
+	depends on X86
+	depends on LPC_ICH
+	help
+	  Say yes here to support the GPIO functionality of a number of Intel
+	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
+	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
+	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
+
+	  If unsure, say N.
+
+config GPIO_IMX_SCU
+       def_bool y
+       depends on IMX_SCU
+
+config GPIO_IXP4XX
+	bool "Intel IXP4xx GPIO"
+	depends on ARCH_IXP4XX
+	depends on OF
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say yes here to support the GPIO functionality of a number of Intel
+	  IXP4xx series of chips.
+
+	  If unsure, say N.
+
+config GPIO_LOGICVC
+	tristate "Xylon LogiCVC GPIO support"
+	depends on MFD_SYSCON && OF
+	help
+	  Say yes here to support GPIO functionality of the Xylon LogiCVC
+	  programmable logic block.
+
+config GPIO_LOONGSON
+	bool "Loongson-2/3 GPIO support"
+	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
+	help
+	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
+
+config GPIO_LPC18XX
+	tristate "NXP LPC18XX/43XX GPIO support"
+	default y if ARCH_LPC18XX
+	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Select this option to enable GPIO driver for
+	  NXP LPC18XX/43XX devices.
+
+config GPIO_LPC32XX
+	tristate "NXP LPC32XX GPIO support"
+	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
+	help
+	  Select this option to enable GPIO driver for
+	  NXP LPC32XX devices.
+
+config GPIO_MB86S7X
+	tristate "GPIO support for Fujitsu MB86S7x Platforms"
+	help
+	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
+
+config GPIO_MENZ127
+	tristate "MEN 16Z127 GPIO support"
+	depends on MCB
+	select GPIO_GENERIC
+	help
+	  Say yes here to support the MEN 16Z127 GPIO Controller.
+
+config GPIO_MM_LANTIQ
+	bool "Lantiq Memory mapped GPIOs"
+	depends on LANTIQ && SOC_XWAY
+	help
+	  This enables support for memory mapped GPIOs on the External Bus Unit
+	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
+	  created by attaching a 16-bit latch to the bus.
+
+config GPIO_MPC5200
+	def_bool y
+	depends on PPC_MPC52xx
+
+config GPIO_MPC8XXX
+	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
+	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
+		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
+		   COMPILE_TEST
+	select GPIO_GENERIC
+	select IRQ_DOMAIN
+	help
+	  Say Y here if you're going to use hardware that connects to the
+	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
+
+config GPIO_MT7621
+	bool "Mediatek MT7621 GPIO Support"
+	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
+
+config GPIO_MVEBU
+	def_bool y
+	depends on PLAT_ORION || ARCH_MVEBU
+	depends on OF_GPIO
+	select GENERIC_IRQ_CHIP
+	select REGMAP_MMIO
+
+config GPIO_MXC
+	tristate "i.MX GPIO support"
+	depends on ARCH_MXC || COMPILE_TEST
+	select GPIO_GENERIC
+	select GENERIC_IRQ_CHIP
+
+config GPIO_MXS
+	bool "Freescale MXS GPIO support" if COMPILE_TEST
+	depends on ARCH_MXS || COMPILE_TEST
+	default y if ARCH_MXS
+	select GPIO_GENERIC
+	select GENERIC_IRQ_CHIP
+
+config GPIO_OCTEON
+	tristate "Cavium OCTEON GPIO"
+	depends on CAVIUM_OCTEON_SOC
+	default y
+	help
+	  Say yes here to support the on-chip GPIO lines on the OCTEON
+	  family of SOCs.
+
+config GPIO_OMAP
+	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
+	default y if ARCH_OMAP
+	depends on ARM
+	select GENERIC_IRQ_CHIP
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to enable GPIO support for TI OMAP SoCs.
+
+config GPIO_PL061
+	tristate "PrimeCell PL061 GPIO support"
+	depends on ARM_AMBA
+	select IRQ_DOMAIN
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support the PrimeCell PL061 GPIO device.
+
+config GPIO_PMIC_EIC_SPRD
+	tristate "Spreadtrum PMIC EIC support"
+	depends on MFD_SC27XX_PMIC || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support Spreadtrum PMIC EIC device.
+
+config GPIO_PXA
+	bool "PXA GPIO support"
+	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
+	help
+	  Say yes here to support the PXA GPIO device.
+
+config GPIO_RCAR
+	tristate "Renesas R-Car and RZ/G GPIO support"
+	depends on ARCH_RENESAS || COMPILE_TEST
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
+
+config GPIO_RDA
+	bool "RDA Micro GPIO controller support"
+	depends on ARCH_RDA || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here to support RDA Micro GPIO controller.
+
+config GPIO_REALTEK_OTTO
+	tristate "Realtek Otto GPIO support"
+	depends on MACH_REALTEK_RTL
+	default MACH_REALTEK_RTL
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  The GPIO controller on the Otto MIPS platform supports up to two
+	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
+	  are grouped in four 8-bit wide ports.
+
+	  When built as a module, the module will be called realtek_otto_gpio.
+
+config GPIO_REG
+	bool
+	help
+	  A 32-bit single register GPIO fixed in/out implementation.  This
+	  can be used to represent any register as a set of GPIO signals.
+
+config GPIO_ROCKCHIP
+	tristate "Rockchip GPIO support"
+	depends on ARCH_ROCKCHIP || COMPILE_TEST
+	select GENERIC_IRQ_CHIP
+	select GPIOLIB_IRQCHIP
+	default ARCH_ROCKCHIP
+	help
+	  Say yes here to support GPIO on Rockchip SoCs.
+
+config GPIO_SAMA5D2_PIOBU
+	tristate "SAMA5D2 PIOBU GPIO support"
+	depends on MFD_SYSCON
+	depends on OF_GPIO
+	depends on ARCH_AT91 || COMPILE_TEST
+	select GPIO_SYSCON
+	help
+	  Say yes here to use the PIOBU pins as GPIOs.
+
+	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
+	  The difference from regular GPIOs is that they
+	  maintain their value during backup/self-refresh.
+
+config GPIO_SIFIVE
+	bool "SiFive GPIO support"
+	depends on OF_GPIO
+	select IRQ_DOMAIN_HIERARCHY
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	select REGMAP_MMIO
+	help
+	  Say yes here to support the GPIO device on SiFive SoCs.
+
+config GPIO_SIOX
+	tristate "SIOX GPIO support"
+	depends on SIOX
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support SIOX I/O devices. These are units connected
+	  via a SIOX bus and have a number of fixed-direction I/O lines.
+
+config GPIO_SNPS_CREG
+	bool "Synopsys GPIO via CREG (Control REGisters) driver"
+	depends on ARC || COMPILE_TEST
+	depends on OF_GPIO
+	help
+	  This driver supports GPIOs via CREG on various Synopsys SoCs.
+	  This is a single-register MMIO GPIO driver for complex cases
+	  where only several fields in register belong to GPIO lines and
+	  each GPIO line owns a field with different length and on/off value.
+
+config GPIO_SPEAR_SPICS
+	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
+	depends on PLAT_SPEAR
+	select GENERIC_IRQ_CHIP
+	help
+	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
+
+config GPIO_SPRD
+	tristate "Spreadtrum GPIO support"
+	depends on ARCH_SPRD || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support Spreadtrum GPIO device.
+
+config GPIO_STP_XWAY
+	bool "XWAY STP GPIOs"
+	depends on SOC_XWAY || COMPILE_TEST
+	depends on OF_GPIO
+	help
+	  This enables support for the Serial To Parallel (STP) unit found on
+	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
+	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
+	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
+	  phy status.
+
+config GPIO_SYSCON
+	tristate "GPIO based on SYSCON"
+	depends on MFD_SYSCON && OF
+	help
+	  Say yes here to support GPIO functionality though SYSCON driver.
+
+config GPIO_TB10X
+	bool
+	select GPIO_GENERIC
+	select GENERIC_IRQ_CHIP
+	select OF_GPIO
+
+config GPIO_TEGRA
+	tristate "NVIDIA Tegra GPIO support"
+	default ARCH_TEGRA
+	depends on ARCH_TEGRA || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
+
+config GPIO_TEGRA186
+	tristate "NVIDIA Tegra186 GPIO support"
+	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
+	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
+
+config GPIO_TS4800
+	tristate "TS-4800 DIO blocks and compatibles"
+	depends on OF_GPIO
+	depends on SOC_IMX51 || COMPILE_TEST
+	select GPIO_GENERIC
+	help
+	  This driver support TS-4800 FPGA GPIO controllers.
+
+config GPIO_THUNDERX
+	tristate "Cavium ThunderX/OCTEON-TX GPIO"
+	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
+	depends on PCI_MSI
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	select IRQ_FASTEOI_HIERARCHY_HANDLERS
+	help
+	  Say yes here to support the on-chip GPIO lines on the ThunderX
+	  and OCTEON-TX families of SoCs.
+
+config GPIO_UNIPHIER
+	tristate "UniPhier GPIO support"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on OF_GPIO
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say yes here to support UniPhier GPIOs.
+
+config GPIO_VF610
+	def_bool y
+	depends on ARCH_MXC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
+
+config GPIO_VISCONTI
+	tristate "Toshiba Visconti GPIO support"
+	depends on ARCH_VISCONTI || COMPILE_TEST
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	select GPIO_GENERIC
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say yes here to support GPIO on Tohisba Visconti.
+
+config GPIO_VX855
+	tristate "VIA VX855/VX875 GPIO"
+	depends on (X86 || COMPILE_TEST) && PCI
+	select MFD_CORE
+	select MFD_VX855
+	help
+	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
+
+	  This driver provides common support for accessing the device.
+	  Additional drivers must be enabled in order to use the
+	  functionality of the device.
+
+config GPIO_WCD934X
+	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
+	depends on MFD_WCD934X && OF_GPIO
+	help
+         This driver is to support GPIO block found on the Qualcomm Technologies
+	 Inc WCD9340/WCD9341 Audio Codec.
+
+config GPIO_XGENE
+	bool "APM X-Gene GPIO controller support"
+	depends on ARM64 && OF_GPIO
+	help
+	  This driver is to support the GPIO block within the APM X-Gene SoC
+	  platform's generic flash controller. The GPIO pins are muxed with
+	  the generic flash controller's address and data pins. Say yes
+	  here to enable the GFC GPIO functionality.
+
+config GPIO_XGENE_SB
+	tristate "APM X-Gene GPIO standby controller support"
+	depends on (ARCH_XGENE || COMPILE_TEST)
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  This driver supports the GPIO block within the APM X-Gene
+	  Standby Domain. Say yes here to enable the GPIO functionality.
+
+config GPIO_XILINX
+	tristate "Xilinx GPIO support"
+	select GPIOLIB_IRQCHIP
+	depends on OF_GPIO
+	help
+	  Say yes here to support the Xilinx FPGA GPIO device.
+
+config GPIO_XLP
+	tristate "Cavium ThunderX2 GPIO support"
+	depends on ARCH_THUNDER2 || COMPILE_TEST
+	select GPIOLIB_IRQCHIP
+	help
+	  This driver provides support for GPIO interface on Cavium's ThunderX2
+	  CN99XX SoCs (Originally from Netlogic XLP).
+
+	  If unsure, say N.
+
+config GPIO_XTENSA
+	bool "Xtensa GPIO32 support"
+	depends on XTENSA
+	depends on HAVE_XTENSA_GPIO32
+	depends on !SMP
+	help
+	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
+	  and EXPSTATE (output) ports.
+
+config GPIO_ZEVIO
+	bool "LSI ZEVIO SoC memory mapped GPIOs"
+	depends on ARM && OF_GPIO
+	help
+	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
+
+config GPIO_ZYNQ
+	tristate "Xilinx Zynq GPIO support"
+	depends on ARCH_ZYNQ || ARCH_ZYNQMP
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support Xilinx Zynq GPIO controller.
+
+config GPIO_ZYNQMP_MODEPIN
+	tristate "ZynqMP ps-mode pin GPIO configuration driver"
+	depends on ZYNQMP_FIRMWARE
+	default ZYNQMP_FIRMWARE
+	help
+	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
+	  driver.
+
+	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
+	  is 4-bits boot mode pins. It sets and gets the status of
+	  the ps-mode pin. Every pin can be configured as input/output.
+
+config GPIO_LOONGSON1
+	tristate "Loongson1 GPIO support"
+	depends on MACH_LOONGSON32
+	select GPIO_GENERIC
+	help
+	  Say Y or M here to support GPIO on Loongson1 SoCs.
+
+config GPIO_AMD_FCH
+	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
+	help
+	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
+	  as found on G-series SOCs (e.g. GX-412TC).
+
+	  Note: This driver doesn't register itself automatically, as it
+	  needs to be provided with platform-specific configuration.
+	  (See e.g. CONFIG_PCENGINES_APU2.)
+
+config GPIO_MSC313
+	bool "MStar MSC313 GPIO support"
+	depends on ARCH_MSTARV7
+	default ARCH_MSTARV7
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN_HIERARCHY
+	help
+	  Say Y here to support the main GPIO block on MStar/SigmaStar
+	  ARMv7-based SoCs.
+
+config GPIO_IDT3243X
+	tristate "IDT 79RC3243X GPIO support"
+	depends on MIKROTIK_RB532 || COMPILE_TEST
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Select this option to enable GPIO driver for
+	  IDT 79RC3243X-based devices like Mikrotik RB532.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-idt3243x.
+
+endmenu
+
+menu "Port-mapped I/O GPIO drivers"
+	depends on X86 # Unconditional I/O space access
+
+config GPIO_I8255
+	tristate
+	help
+	  Enables support for the i8255 interface library functions. The i8255
+	  interface library provides functions to facilitate communication with
+	  interfaces compatible with the venerable Intel 8255 Programmable
+	  Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
+	  in the early 1970s but compatible interfaces are nowadays typically
+	  found embedded in larger VLSI processing chips and FPGA components.
+
+	  If built as a module its name will be gpio-i8255.
+
+config GPIO_104_DIO_48E
+	tristate "ACCES 104-DIO-48E GPIO support"
+	depends on PC104
+	select ISA_BUS_API
+	select GPIOLIB_IRQCHIP
+	select GPIO_I8255
+	help
+	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
+	  104-DIO-24E). The base port addresses for the devices may be
+	  configured via the base module parameter. The interrupt line numbers
+	  for the devices may be configured via the irq module parameter.
+
+config GPIO_104_IDIO_16
+	tristate "ACCES 104-IDIO-16 GPIO support"
+	depends on PC104
+	select ISA_BUS_API
+	select GPIOLIB_IRQCHIP
+	select GPIO_IDIO_16
+	help
+	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
+	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
+	  base port addresses for the devices may be configured via the base
+	  module parameter. The interrupt line numbers for the devices may be
+	  configured via the irq module parameter.
+
+config GPIO_104_IDI_48
+	tristate "ACCES 104-IDI-48 GPIO support"
+	depends on PC104
+	select ISA_BUS_API
+	select GPIOLIB_IRQCHIP
+	select GPIO_I8255
+	help
+	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
+	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
+	  the devices may be configured via the base module parameter. The
+	  interrupt line numbers for the devices may be configured via the irq
+	  module parameter.
+
+config GPIO_F7188X
+	tristate "Fintek and Nuvoton Super-I/O GPIO support"
+	help
+	  This option enables support for GPIOs found on Fintek Super-I/O
+	  chips F71869, F71869A, F71882FG, F71889F and F81866.
+	  As well as Nuvoton Super-I/O chip NCT6116D.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called f7188x-gpio.
+
+config GPIO_GPIO_MM
+	tristate "Diamond Systems GPIO-MM GPIO support"
+	depends on PC104
+	select ISA_BUS_API
+	select GPIO_I8255
+	help
+	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
+
+	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
+	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
+	  support for these 48 channels of digital I/O.
+
+	  The base port addresses for the devices may be configured via the base
+	  array module parameter.
+
+config GPIO_IT87
+	tristate "IT87xx GPIO support"
+	help
+	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
+
+	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
+	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
+	  well.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio_it87.
+
+config GPIO_SCH
+	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
+	depends on (X86 || COMPILE_TEST) && ACPI
+	depends on LPC_SCH
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
+	  Intel Tunnel Creek processor, Intel Centerton processor or
+	  Intel Quark X1000 SoC.
+
+	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
+	  powered by the core power rail and are turned off during sleep
+	  modes (S3 and higher). The remaining four GPIOs are powered by
+	  the Intel SCH suspend power supply. These GPIOs remain
+	  active during S3. The suspend-powered GPIOs can be used to wake the
+	  system from the Suspend-to-RAM state.
+
+	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
+	  core power rail and 9 from suspend power supply.
+
+	  The Intel Centerton processor has a total of 30 GPIO pins.
+	  Twenty-one are powered by the core power rail and 9 from the
+	  suspend power supply.
+
+	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
+	  power well and 6 from the suspend power well.
+
+config GPIO_SCH311X
+	tristate "SMSC SCH311x SuperI/O GPIO"
+	help
+	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
+	  SCH3116 "Super I/O" chipsets.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-sch311x.
+
+config GPIO_TS5500
+	tristate "TS-5500 DIO blocks and compatibles"
+	depends on TS5500 || COMPILE_TEST
+	help
+	  This driver supports Digital I/O exposed by pin blocks found on some
+	  Technologic Systems platforms. It includes, but is not limited to, 3
+	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
+	  LCD port.
+
+config GPIO_WINBOND
+	tristate "Winbond Super I/O GPIO support"
+	select ISA_BUS_API
+	help
+	  This option enables support for GPIOs found on Winbond Super I/O
+	  chips.
+	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
+	  supported.
+
+	  You will need to provide a module parameter "gpios", or a
+	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
+	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-winbond.
+
+config GPIO_WS16C48
+	tristate "WinSystems WS16C48 GPIO support"
+	select ISA_BUS_API
+	select GPIOLIB_IRQCHIP
+	help
+	  Enables GPIO support for the WinSystems WS16C48. The base port
+	  addresses for the devices may be configured via the base module
+	  parameter. The interrupt line numbers for the devices may be
+	  configured via the irq module parameter.
+
+endmenu
+
+menu "I2C GPIO expanders"
+	depends on I2C
+
+config GPIO_ADNP
+	tristate "Avionic Design N-bit GPIO expander"
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  This option enables support for N GPIOs found on Avionic Design
+	  I2C GPIO expanders. The register space will be extended by powers
+	  of two, so the controller will need to accommodate for that. For
+	  example: if a controller provides 48 pins, 6 registers will be
+	  enough to represent all pins, but the driver will assume a
+	  register layout for 64 pins (8 registers).
+
+config GPIO_GW_PLD
+	tristate "Gateworks PLD GPIO Expander"
+	depends on OF_GPIO
+	help
+	  Say yes here to provide access to the Gateworks I2C PLD GPIO
+	  Expander. This is used at least on the Cambria GW2358-4.
+
+config GPIO_MAX7300
+	tristate "Maxim MAX7300 GPIO expander"
+	select GPIO_MAX730X
+	help
+	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
+
+config GPIO_MAX732X
+	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
+	help
+	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
+	  Port Expanders. Each IO port on these chips has a fixed role of
+	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
+	  Input and Output (designed by 'P'). The combinations are listed
+	  below:
+
+	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
+	                max7322 (4I4O), max7323 (4P4O)
+
+	  16 bits:      max7324 (8I8O), max7325 (8P8O),
+	                max7326 (4I12O), max7327 (4P12O)
+
+	  Board setup code must specify the model to use, and the start
+	  number for these GPIOs.
+
+config GPIO_MAX732X_IRQ
+	bool "Interrupt controller support for MAX732x"
+	depends on GPIO_MAX732X=y
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to enable the max732x to be used as an interrupt
+	  controller. It requires the driver to be built in the kernel.
+
+config GPIO_PCA953X
+	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
+	select REGMAP_I2C
+	help
+	  Say yes here to provide access to several register-oriented
+	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
+	  models include:
+
+	  4 bits:       pca9536, pca9537
+
+	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
+	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
+
+	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
+	                tca6416
+
+	  24 bits:      tca6424
+
+	  40 bits:      pca9505, pca9698
+
+config GPIO_PCA953X_IRQ
+	bool "Interrupt controller support for PCA953x"
+	depends on GPIO_PCA953X
+	select GPIOLIB_IRQCHIP
+	help
+	  Say yes here to enable the pca953x to be used as an interrupt
+	  controller.
+
+config GPIO_PCA9570
+	tristate "PCA9570 4-Bit I2C GPO expander"
+	help
+	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-pca9570.
+
+config GPIO_PCF857X
+	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
+	select GPIOLIB_IRQCHIP
+	select IRQ_DOMAIN
+	help
+	  Say yes here to provide access to most "quasi-bidirectional" I2C
+	  GPIO expanders used for additional digital outputs or inputs.
+	  Most of these parts are from NXP, though TI is a second source for
+	  some of them.  Compatible models include:
+
+	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
+	            pca9670, pca9672, pca9674, pca9674a,
+	            max7328, max7329
+
+	  16 bits:  pcf8575, pcf8575c, pca8575,
+	            pca9671, pca9673, pca9675
+
+	  Your board setup code will need to declare the expanders in
+	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
+	  can then be used from drivers and other kernel code, just like
+	  other GPIOs, but only accessible from task contexts.
+
+	  This driver provides an in-kernel interface to those GPIOs using
+	  platform-neutral GPIO calls.
+
+config GPIO_TPIC2810
+	tristate "TPIC2810 8-Bit I2C GPO expander"
+	help
+	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-tpic2810.
+
+config GPIO_TS4900
+	tristate "Technologic Systems FPGA I2C GPIO"
+	depends on SOC_IMX6 || COMPILE_TEST
+	select REGMAP_I2C
+	help
+	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
+	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
+
+endmenu
+
+menu "MFD GPIO expanders"
+
+config GPIO_ADP5520
+	tristate "GPIO Support for ADP5520 PMIC"
+	depends on PMIC_ADP5520
+	help
+	  This option enables support for on-chip GPIO found
+	  on Analog Devices ADP5520 PMICs.
+
+config GPIO_ALTERA_A10SR
+	tristate "Altera Arria10 System Resource GPIO"
+	depends on MFD_ALTERA_A10SR
+	help
+	  Driver for Arria10 Development Kit GPIO expansion which
+	  includes reads of pushbuttons and DIP switches as well
+	  as writes to LEDs.
+
+config GPIO_ARIZONA
+	tristate "Wolfson Microelectronics Arizona class devices"
+	depends on MFD_ARIZONA
+	help
+	  Support for GPIOs on Wolfson Arizona class devices.
+
+config GPIO_BD71815
+	tristate "ROHM BD71815 PMIC GPIO support"
+	depends on MFD_ROHM_BD71828
+	help
+	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
+	  available on the ROHM PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called gpio-bd71815.
+
+config GPIO_BD71828
+	tristate "ROHM BD71828 GPIO support"
+	depends on MFD_ROHM_BD71828
+	help
+	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
+	  available on the ROHM PMIC in total. The GPIOs are limited to
+	  outputs only and pins must be configured to GPIO outputs by
+	  OTP. Enable this only if you want to use these pins as outputs.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called gpio-bd71828.
+
+config GPIO_BD9571MWV
+	tristate "ROHM BD9571 GPIO support"
+	depends on MFD_BD9571MWV
+	help
+	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
+	  available on the ROHM PMIC in total, both of which can also
+	  generate interrupts.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called gpio-bd9571mwv.
+
+config GPIO_CRYSTAL_COVE
+	tristate "GPIO support for Crystal Cove PMIC"
+	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Support for GPIO pins on Crystal Cove PMIC.
+
+	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
+	  inside.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-crystalcove.
+
+config GPIO_CS5535
+	tristate "AMD CS5535/CS5536 GPIO support"
+	depends on X86 || MIPS || COMPILE_TEST
+	depends on MFD_CS5535
+	help
+	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
+	  can be used for quite a number of things.  The CS5535/6 is found on
+	  AMD Geode and Lemote Yeeloong devices.
+
+	  If unsure, say N.
+
+config GPIO_DA9052
+	tristate "Dialog DA9052 GPIO"
+	depends on PMIC_DA9052
+	help
+	  Say yes here to enable the GPIO driver for the DA9052 chip.
+
+config GPIO_DA9055
+	tristate "Dialog Semiconductor DA9055 GPIO"
+	depends on MFD_DA9055
+	help
+	  Say yes here to enable the GPIO driver for the DA9055 chip.
+
+	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
+	  be controlled by this driver.
+
+	  If driver is built as a module it will be called gpio-da9055.
+
+config GPIO_DLN2
+	tristate "Diolan DLN2 GPIO support"
+	depends on MFD_DLN2
+	select GPIOLIB_IRQCHIP
+
+	help
+	  Select this option to enable GPIO driver for the Diolan DLN2
+	  board.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called gpio-dln2.
+
+config HTC_EGPIO
+	bool "HTC EGPIO support"
+	depends on ARM
+	help
+	  This driver supports the CPLD egpio chip present on
+	  several HTC phones.  It provides basic support for input
+	  pins, output pins, and IRQs.
+
+config GPIO_JANZ_TTL
+	tristate "Janz VMOD-TTL Digital IO Module"
+	depends on MFD_JANZ_CMODIO
+	help
+	  This enables support for the Janz VMOD-TTL Digital IO module.
+	  This driver provides support for driving the pins in output
+	  mode only. Input mode is not supported.
+
+config GPIO_KEMPLD
+	tristate "Kontron ETX / COMexpress GPIO"
+	depends on MFD_KEMPLD
+	help
+	  This enables support for the PLD GPIO interface on some Kontron ETX
+	  and COMexpress (ETXexpress) modules.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-kempld.
+
+config GPIO_LP3943
+	tristate "TI/National Semiconductor LP3943 GPIO expander"
+	depends on MFD_LP3943
+	help
+	  GPIO driver for LP3943 MFD.
+	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
+	  Open drain outputs are required for this usage.
+
+config GPIO_LP873X
+	tristate "TI LP873X GPO"
+	depends on MFD_TI_LP873X
+	help
+	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
+	  on LP873X PMICs.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-lp873x.
+
+config GPIO_LP87565
+	tristate "TI LP87565 GPIO"
+	depends on MFD_TI_LP87565
+	help
+	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
+	  on LP87565 PMICs.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-lp87565.
+
+config GPIO_MADERA
+	tristate "Cirrus Logic Madera class codecs"
+	depends on PINCTRL_MADERA
+	help
+	  Support for GPIOs on Cirrus Logic Madera class codecs.
+
+config GPIO_MAX77620
+	tristate "GPIO support for PMIC MAX77620 and MAX20024"
+	depends on MFD_MAX77620
+	select GPIOLIB_IRQCHIP
+	help
+	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
+	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
+	  driver also provides interrupt support for each of the GPIOs.
+	  Say yes here to enable the max77620 to be used as GPIO controller.
+
+config GPIO_MAX77650
+	tristate "Maxim MAX77650/77651 GPIO support"
+	depends on MFD_MAX77650
+	help
+	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
+	  These chips have a single pin that can be configured as GPIO.
+
+config GPIO_PALMAS
+	bool "TI PALMAS series PMICs GPIO"
+	depends on MFD_PALMAS
+	help
+	  Select this option to enable GPIO driver for the TI PALMAS
+	  series chip family.
+
+config GPIO_RC5T583
+	bool "RICOH RC5T583 GPIO"
+	depends on MFD_RC5T583
+	help
+	  Select this option to enable GPIO driver for the Ricoh RC5T583
+	  chip family.
+	  This driver provides the support for driving/reading the GPIO pins
+	  of RC5T583 device through standard GPIO library.
+
+config GPIO_SL28CPLD
+	tristate "Kontron sl28cpld GPIO support"
+	depends on MFD_SL28CPLD || COMPILE_TEST
+	select GPIO_REGMAP
+	select GPIOLIB_IRQCHIP
+	select REGMAP_IRQ
+	help
+	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-sl28cpld.
+
+config GPIO_STMPE
+	bool "STMPE GPIOs"
+	depends on MFD_STMPE
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  This enables support for the GPIOs found on the STMPE I/O
+	  Expanders.
+
+config GPIO_TC3589X
+	bool "TC3589X GPIOs"
+	depends on MFD_TC3589X
+	depends on OF_GPIO
+	select GPIOLIB_IRQCHIP
+	help
+	  This enables support for the GPIOs found on the TC3589X
+	  I/O Expander.
+
+config GPIO_TIMBERDALE
+	bool "Support for timberdale GPIO IP"
+	depends on MFD_TIMBERDALE
+	help
+	Add support for the GPIO IP in the timberdale FPGA.
+
+config GPIO_TN48M_CPLD
+	tristate "Delta Networks TN48M switch CPLD GPIO driver"
+	depends on MFD_TN48M_CPLD
+	select GPIO_REGMAP
+	help
+	  This enables support for the GPIOs found on the Delta
+	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
+	  they are input-only or output-only type.
+
+	  This driver can also be built as a module. If so, the
+	  module will be called gpio-tn48m.
+
+config GPIO_TPS65086
+	tristate "TI TPS65086 GPO"
+	depends on MFD_TPS65086
+	help
+	  This driver supports the GPO on TI TPS65086x PMICs.
+
+config GPIO_TPS65218
+	tristate "TPS65218 GPIO"
+	depends on MFD_TPS65218
+	help
+	  Select this option to enable GPIO driver for the TPS65218
+	  chip family.
+
+config GPIO_TPS6586X
+	bool "TPS6586X GPIO"
+	depends on MFD_TPS6586X
+	help
+	  Select this option to enable GPIO driver for the TPS6586X
+	  chip family.
+
+config GPIO_TPS65910
+	bool "TPS65910 GPIO"
+	depends on MFD_TPS65910
+	help
+	  Select this option to enable GPIO driver for the TPS65910
+	  chip family.
+
+config GPIO_TPS65912
+	tristate "TI TPS65912 GPIO"
+	depends on MFD_TPS65912
+	help
+	  This driver supports TPS65912 GPIO chip.
+
+config GPIO_TPS68470
+	tristate "TPS68470 GPIO"
+	depends on INTEL_SKL_INT3472
+	help
+	  Select this option to enable GPIO driver for the TPS68470
+	  chip family.
+	  There are 7 GPIOs and few sensor-related GPIOs supported
+	  by the TPS68470. While the 7 GPIOs can be configured as
+	  input or output as appropriate, the sensor related GPIOs
+	  are "output only" GPIOs.
+
+config GPIO_TQMX86
+	tristate "TQ-Systems QTMX86 GPIO"
+	depends on MFD_TQMX86 || COMPILE_TEST
+	depends on HAS_IOPORT_MAP
+	select GPIOLIB_IRQCHIP
+	help
+	  This driver supports GPIO on the TQMX86 IO controller.
+
+config GPIO_TWL4030
+	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
+	depends on TWL4030_CORE
+	help
+	  Say yes here to access the GPIO signals of various multi-function
+	  power management chips from Texas Instruments.
+
+config GPIO_TWL6040
+	tristate "TWL6040 GPO"
+	depends on TWL6040_CORE
+	help
+	  Say yes here to access the GPO signals of twl6040
+	  audio chip from Texas Instruments.
+
+config GPIO_WHISKEY_COVE
+	tristate "GPIO support for Whiskey Cove PMIC"
+	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
+	select GPIOLIB_IRQCHIP
+	help
+	  Support for GPIO pins on Whiskey Cove PMIC.
+
+	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
+	  inside.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called gpio-wcove.
+
+config GPIO_WM831X
+	tristate "WM831x GPIOs"
+	depends on MFD_WM831X
+	help
+	  Say yes here to access the GPIO signals of WM831x power management
+	  chips from Wolfson Microelectronics.
+
+config GPIO_WM8350
+	tristate "WM8350 GPIOs"
+	depends on MFD_WM8350
+	help
+	  Say yes here to access the GPIO signals of WM8350 power management
+	  chips from Wolfson Microelectronics.
+
+config GPIO_WM8994
+	tristate "WM8994 GPIOs"
+	depends on MFD_WM8994
+	help
+	  Say yes here to access the GPIO signals of WM8994 audio hub
+	  CODECs from Wolfson Microelectronics.
+
+endmenu
+
+menu "PCI GPIO expanders"
+	depends on PCI
+
+config GPIO_AMD8111
+	tristate "AMD 8111 GPIO driver"
+	depends on X86 || COMPILE_TEST
+	depends on HAS_IOPORT_MAP
+	help
+	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
+
+	  Note that usually system firmware/ACPI handles GPIO pins on their
+	  own and users might easily break their systems with uncareful usage
+	  of this driver!
+
+	  If unsure, say N
+
+config GPIO_BT8XX
+	tristate "BT8XX GPIO abuser"
+	depends on VIDEO_BT848=n
+	help
+	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
+	  as a cheap PCI GPIO card.
+
+	  This chip can be found on Miro, Hauppauge and STB TV-cards.
+
+	  The card needs to be physically altered for using it as a
+	  GPIO card. For more information on how to build a GPIO card
+	  from a BT8xx TV card, see the documentation file at
+	  Documentation/driver-api/gpio/bt8xxgpio.rst
+
+	  If unsure, say N.
+
+config GPIO_MERRIFIELD
+	tristate "Intel Merrifield GPIO support"
+	depends on X86_INTEL_MID
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here to support Intel Merrifield GPIO.
+
+config GPIO_MLXBF
+	tristate "Mellanox BlueField SoC GPIO"
+	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
+	select GPIO_GENERIC
+	help
+	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
+
+config GPIO_MLXBF2
+	tristate "Mellanox BlueField 2 SoC GPIO"
+	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
+	select GPIO_GENERIC
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
+
+config GPIO_ML_IOH
+	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
+	depends on X86 || COMPILE_TEST
+	select GENERIC_IRQ_CHIP
+	help
+	  ML7213 is companion chip for Intel Atom E6xx series.
+	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
+	  Hub) which is for IVI (In-Vehicle Infotainment) use.
+	  This driver can access the IOH's GPIO device.
+
+config GPIO_PCH
+	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
+	depends on X86_32 || MIPS || COMPILE_TEST
+	select GENERIC_IRQ_CHIP
+	help
+	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
+	  which is an IOH (Input/Output Hub) for x86 embedded processor.
+	  This driver can access PCH GPIO device.
+
+	  This driver also can be used for LAPIS Semiconductor IOH (Input/
+	  Output Hub), ML7223 and ML7831.
+	  ML7223 IOH is for MP (Media Phone) use.
+	  ML7831 IOH is for general purpose use.
+	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
+	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
+
+config GPIO_PCI_IDIO_16
+	tristate "ACCES PCI-IDIO-16 GPIO support"
+	select GPIOLIB_IRQCHIP
+	select GPIO_IDIO_16
+	help
+	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
+	  generated when any of the inputs change state (low to high or high to
+	  low). Input filter control is not supported by this driver, and the
+	  input filters are deactivated by this driver.
+
+config GPIO_PCIE_IDIO_24
+	tristate "ACCES PCIe-IDIO-24 GPIO support"
+	select GPIOLIB_IRQCHIP
+	help
+	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
+	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
+	  when any of the inputs change state (low to high or high to low).
+	  Input filter control is not supported by this driver, and the input
+	  filters are deactivated by this driver.
+
+config GPIO_RDC321X
+	tristate "RDC R-321x GPIO support"
+	select MFD_CORE
+	select MFD_RDC321X
+	help
+	  Support for the RDC R321x SoC GPIOs over southbridge
+	  PCI configuration space.
+
+config GPIO_SODAVILLE
+	bool "Intel Sodaville GPIO support"
+	depends on X86 && OF
+	select GPIO_GENERIC
+	select GENERIC_IRQ_CHIP
+	help
+	  Say Y here to support Intel Sodaville GPIO.
+
+endmenu
+
+menu "SPI GPIO expanders"
+	depends on SPI_MASTER
+
+config GPIO_74X164
+	tristate "74x164 serial-in/parallel-out 8-bits shift register"
+	depends on OF_GPIO
+	help
+	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
+	  shift registers. This driver can be used to provide access
+	  to more GPIO outputs.
+
+config GPIO_MAX3191X
+	tristate "Maxim MAX3191x industrial serializer"
+	select CRC8
+	help
+	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
+	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
+	  chip to make 8 digital 24V inputs available via SPI.  Supports
+	  CRC checksums to guard against electromagnetic interference,
+	  as well as undervoltage and overtemperature detection.
+
+config GPIO_MAX7301
+	tristate "Maxim MAX7301 GPIO expander"
+	select GPIO_MAX730X
+	help
+	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
+
+config GPIO_MC33880
+	tristate "Freescale MC33880 high-side/low-side switch"
+	help
+	  SPI driver for Freescale MC33880 high-side/low-side switch.
+	  This provides GPIO interface supporting inputs and outputs.
+
+config GPIO_PISOSR
+	tristate "Generic parallel-in/serial-out shift register"
+	help
+	  GPIO driver for SPI compatible parallel-in/serial-out shift
+	  registers. These are input only devices.
+
+config GPIO_XRA1403
+	tristate "EXAR XRA1403 16-bit GPIO expander"
+	select REGMAP_SPI
+	help
+	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
+
+config GPIO_MOXTET
+	tristate "Turris Mox Moxtet bus GPIO expander"
+	depends on MOXTET
+	help
+	  Say yes here if you are building for the Turris Mox router.
+	  This is the driver needed for configuring the GPIOs via the Moxtet
+	  bus. For example the Mox module with SFP cage needs this driver
+	  so that phylink can use corresponding GPIOs.
+
+endmenu
+
+menu "USB GPIO expanders"
+	depends on USB
+
+config GPIO_VIPERBOARD
+	tristate "Viperboard GPIO a & b support"
+	depends on MFD_VIPERBOARD
+	help
+	  Say yes here to access the GPIO signals of Nano River
+	  Technologies Viperboard. There are two GPIO chips on the
+	  board: gpioa and gpiob.
+	  See viperboard API specification and Nano
+	  River Tech's viperboard.h for detailed meaning
+	  of the module parameters.
+
+endmenu
+
+menu "Virtual GPIO drivers"
+
+config GPIO_AGGREGATOR
+	tristate "GPIO Aggregator"
+	help
+	  Say yes here to enable the GPIO Aggregator, which provides a way to
+	  aggregate existing GPIO lines into a new virtual GPIO chip.
+	  This can serve the following purposes:
+	    - Assign permissions for a collection of GPIO lines to a user,
+	    - Export a collection of GPIO lines to a virtual machine,
+	    - Provide a generic driver for a GPIO-operated device in an
+	      industrial control context, to be operated from userspace using
+	      the GPIO chardev interface.
+
+config GPIO_LATCH
+	tristate "GPIO latch driver"
+	help
+	  Say yes here to enable a driver for GPIO multiplexers based on latches
+	  connected to other GPIOs.
+
+config GPIO_MOCKUP
+	tristate "GPIO Testing Driver"
+	select IRQ_SIM
+	help
+	  This enables GPIO Testing driver, which provides a way to test GPIO
+	  subsystem through sysfs (or char device) and debugfs.
+	  User could use it through the script in
+	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
+	  it.
+
+config GPIO_VIRTIO
+	tristate "VirtIO GPIO support"
+	depends on VIRTIO
+	select GPIOLIB_IRQCHIP
+	help
+	  Say Y here to enable guest support for virtio-based GPIO controllers.
+
+	  These virtual GPIOs can be routed to real GPIOs or attached to
+	  simulators on the host (like QEMU).
+
+config GPIO_SIM
+	tristate "GPIO Simulator Module"
+	select IRQ_SIM
+	select CONFIGFS_FS
+	help
+	  This enables the GPIO simulator - a configfs-based GPIO testing
+	  driver.
+
+endmenu
+
+endif