mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 18:11:56 +00:00
1cd04d293c
Core changes:
- The big item is of course the completion of the character
device ABI. It has now replaced and surpassed the former
unmaintainable sysfs ABI: we can now hammer (bitbang)
individual lines or sets of lines and read individual lines
or sets of lines from userspace, and we can also register
to listen to GPIO events from userspace. As a tie-in we
have two new tools in tools/gpio: gpio-hammer and
gpio-event-mon that illustrate the proper use of the new
ABI. As someone said: the wild west days of GPIO are now
over.
- Continued to remove the pointless
ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB Kconfig symbols.
I'm patching hexagon, openrisc, powerpc, sh, unicore,
ia64 and microblaze. These are either ACKed by their
maintainers or patched anyways after a grace period and
no response from maintainers. Some archs (ARM) come in from
their trees, and others (x86) are still not fixed, so I
might send a second pull request to root it out later in
this merge window, or just defer to v4.9.
- The GPIO tools are moved to the tools build system.
New drivers:
- New driver for the MAX77620/MAX20024.
- New driver for the Intel Merrifield.
- Enabled PCA953x for the TI PCA9536.
- Enabled PCA953x for the Intel Edison.
- Enabled R8A7792 in the RCAR driver.
Driver improvements:
- The STMPE and F7188x now supports the .get_direction()
callback.
- The Xilinx driver supports setting multiple lines at
once.
- ACPI support for the Vulcan GPIO controller.
- The MMIO GPIO driver supports device tree probing.
- The Acer One 10 is supported through the _DEP ACPI
attribute.
Cleanups:
- A major cleanup of the OF/DT support code. It is way
easier to read and understand now, probably this improves
performance too.
- Drop a few redundant .owner assignments.
- Remove CLPS711x boardfile support: we are 100% DT.
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Merge tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.8 kernel cycle. The big
news is the completion of the chardev ABI which I'm very happy about
and apart from that it's an ordinary, quite busy cycle. The details
are below.
The patches are tested in linux-next for some time, patches to other
subsystem mostly have ACKs.
I got overly ambitious with configureing lines as input for IRQ lines
but it turns out that some controllers have their interrupt-enable and
input-enabling in orthogonal settings so the assumption that all IRQ
lines are input lines does not hold. Oh well, revert and back to the
drawing board with that.
Core changes:
- The big item is of course the completion of the character device
ABI. It has now replaced and surpassed the former unmaintainable
sysfs ABI: we can now hammer (bitbang) individual lines or sets of
lines and read individual lines or sets of lines from userspace,
and we can also register to listen to GPIO events from userspace.
As a tie-in we have two new tools in tools/gpio: gpio-hammer and
gpio-event-mon that illustrate the proper use of the new ABI. As
someone said: the wild west days of GPIO are now over.
- Continued to remove the pointless ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
Kconfig symbols. I'm patching hexagon, openrisc, powerpc, sh,
unicore, ia64 and microblaze. These are either ACKed by their
maintainers or patched anyways after a grace period and no response
from maintainers.
Some archs (ARM) come in from their trees, and others (x86) are
still not fixed, so I might send a second pull request to root it
out later in this merge window, or just defer to v4.9.
- The GPIO tools are moved to the tools build system.
New drivers:
- New driver for the MAX77620/MAX20024.
- New driver for the Intel Merrifield.
- Enabled PCA953x for the TI PCA9536.
- Enabled PCA953x for the Intel Edison.
- Enabled R8A7792 in the RCAR driver.
Driver improvements:
- The STMPE and F7188x now supports the .get_direction() callback.
- The Xilinx driver supports setting multiple lines at once.
- ACPI support for the Vulcan GPIO controller.
- The MMIO GPIO driver supports device tree probing.
- The Acer One 10 is supported through the _DEP ACPI attribute.
Cleanups:
- A major cleanup of the OF/DT support code. It is way easier to
read and understand now, probably this improves performance too.
- Drop a few redundant .owner assignments.
- Remove CLPS711x boardfile support: we are 100% DT"
* tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (67 commits)
MAINTAINERS: Add INTEL MERRIFIELD GPIO entry
gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
gpio: merrifield: Protect irq_ack() and gpio_set() by lock
gpio: merrifield: Introduce GPIO driver to support Merrifield
gpio: intel-mid: Make it depend to X86_INTEL_MID
gpio: intel-mid: Sort header block alphabetically
gpio: intel-mid: Remove potentially harmful code
gpio: rcar: add R8A7792 support
gpiolib: remove duplicated include from gpiolib.c
Revert "gpio: convince line to become input in irq helper"
gpiolib: of_find_gpio(): Don't discard errors
gpio: of: Allow overriding the device node
gpio: free handles in fringe cases
gpio: tps65218: Add platform_device_id table
gpio: max77620: get gpio value based on direction
gpio: lynxpoint: avoid potential warning on error path
tools/gpio: add install section
tools/gpio: move to tools buildsystem
gpio: intel-mid: switch to devm_gpiochip_add_data()
gpio: 74x164: Use spi_write() helper instead of open coding
...
1159 lines
32 KiB
Plaintext
1159 lines
32 KiB
Plaintext
#
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# GPIO infrastructure and drivers
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#
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config ARCH_HAVE_CUSTOM_GPIO_H
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bool
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help
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Selecting this config option from the architecture Kconfig allows
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the architecture to provide a custom asm/gpio.h implementation
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overriding the default implementations. New uses of this are
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strongly discouraged.
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config ARCH_WANT_OPTIONAL_GPIOLIB
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bool
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help
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Select this config option from the architecture Kconfig, if
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it is possible to use gpiolib on the architecture, but let the
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user decide whether to actually build it or not.
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Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
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not depend on GPIOs being available, but rather let the user
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decide whether he needs it or not.
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config ARCH_REQUIRE_GPIOLIB
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bool
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select GPIOLIB
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help
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Platforms select gpiolib if they use this infrastructure
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for all their GPIOs, usually starting with ones integrated
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into SOC processors.
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Selecting this from the architecture code will cause the gpiolib
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code to always get built in.
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menuconfig GPIOLIB
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bool "GPIO Support"
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select ANON_INODES
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help
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This enables GPIO support through the generic GPIO library.
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You only need to enable this, if you also want to enable
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one or more of the GPIO drivers below.
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If unsure, say N.
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if GPIOLIB
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config GPIO_DEVRES
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def_bool y
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depends on HAS_IOMEM
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config OF_GPIO
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def_bool y
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depends on OF
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config GPIO_ACPI
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def_bool y
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depends on ACPI
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config GPIOLIB_IRQCHIP
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select IRQ_DOMAIN
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bool
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config DEBUG_GPIO
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bool "Debug GPIO calls"
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depends on DEBUG_KERNEL
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help
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Say Y here to add some extra checks and diagnostics to GPIO calls.
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These checks help ensure that GPIOs have been properly initialized
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before they are used, and that sleeping calls are not made from
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non-sleeping contexts. They can make bitbanged serial protocols
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slower. The diagnostics help catch the type of setup errors
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that are most common when setting up new platforms or boards.
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config GPIO_SYSFS
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bool "/sys/class/gpio/... (sysfs interface)"
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depends on SYSFS
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help
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Say Y here to add a sysfs interface for GPIOs.
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This is mostly useful to work around omissions in a system's
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kernel support. Those are common in custom and semicustom
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hardware assembled using standard kernels with a minimum of
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custom patches. In those cases, userspace code may import
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a given GPIO from the kernel, if no kernel driver requested it.
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Kernel drivers may also request that a particular GPIO be
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exported to userspace; this can be useful when debugging.
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config GPIO_GENERIC
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tristate
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# put drivers in the right section, in alphabetical order
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# This symbol is selected by both I2C and SPI expanders
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config GPIO_MAX730X
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tristate
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menu "Memory mapped GPIO drivers"
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config GPIO_74XX_MMIO
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tristate "GPIO driver for 74xx-ICs with MMIO access"
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depends on OF_GPIO
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select GPIO_GENERIC
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help
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Say yes here to support GPIO functionality for 74xx-compatible ICs
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with MMIO access. Compatible models include:
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1 bit: 741G125 (Input), 741G74 (Output)
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2 bits: 742G125 (Input), 7474 (Output)
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4 bits: 74125 (Input), 74175 (Output)
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6 bits: 74365 (Input), 74174 (Output)
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8 bits: 74244 (Input), 74273 (Output)
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16 bits: 741624 (Input), 7416374 (Output)
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config GPIO_ALTERA
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tristate "Altera GPIO"
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depends on OF_GPIO
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select GPIOLIB_IRQCHIP
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help
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Say Y or M here to build support for the Altera PIO device.
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If driver is built as a module it will be called gpio-altera.
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config GPIO_AMDPT
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tristate "AMD Promontory GPIO support"
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depends on ACPI
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select GPIO_GENERIC
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help
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driver for GPIO functionality on Promontory IOHub
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Require ACPI ASL code to enumerate as a platform device.
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config GPIO_ATH79
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tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
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default y if ATH79
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depends on ATH79 || COMPILE_TEST
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select GPIO_GENERIC
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select GPIOLIB_IRQCHIP
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help
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Select this option to enable GPIO driver for
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Atheros AR71XX/AR724X/AR913X SoC devices.
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config GPIO_BCM_KONA
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bool "Broadcom Kona GPIO"
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depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
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help
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Turn on GPIO support for Broadcom "Kona" chips.
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config GPIO_BRCMSTB
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tristate "BRCMSTB GPIO support"
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default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
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depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
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select GPIO_GENERIC
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select GPIOLIB_IRQCHIP
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help
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Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
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config GPIO_CLPS711X
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tristate "CLPS711X GPIO support"
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depends on ARCH_CLPS711X || COMPILE_TEST
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select GPIO_GENERIC
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help
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Say yes here to support GPIO on CLPS711X SoCs.
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config GPIO_DAVINCI
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bool "TI Davinci/Keystone GPIO support"
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default y if ARCH_DAVINCI
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depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
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help
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Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
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config GPIO_DWAPB
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tristate "Synopsys DesignWare APB GPIO driver"
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select GPIO_GENERIC
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select GENERIC_IRQ_CHIP
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help
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Say Y or M here to build support for the Synopsys DesignWare APB
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GPIO block.
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config GPIO_EM
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tristate "Emma Mobile GPIO"
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depends on ARM && OF_GPIO
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help
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Say yes here to support GPIO on Renesas Emma Mobile SoCs.
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config GPIO_EP93XX
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def_bool y
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depends on ARCH_EP93XX
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select GPIO_GENERIC
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config GPIO_ETRAXFS
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bool "Axis ETRAX FS General I/O"
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depends on CRIS || COMPILE_TEST
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depends on OF
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select GPIO_GENERIC
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select GPIOLIB_IRQCHIP
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help
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Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
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config GPIO_GE_FPGA
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bool "GE FPGA based GPIO"
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depends on GE_FPGA
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select GPIO_GENERIC
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help
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Support for common GPIO functionality provided on some GE Single Board
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Computers.
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This driver provides basic support (configure as input or output, read
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and write pin state) for GPIO implemented in a number of GE single
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board computers.
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config GPIO_GENERIC_PLATFORM
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tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
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select GPIO_GENERIC
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help
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Say yes here to support basic platform_device memory-mapped GPIO controllers.
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config GPIO_GRGPIO
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tristate "Aeroflex Gaisler GRGPIO support"
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depends on OF
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select GPIO_GENERIC
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select IRQ_DOMAIN
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help
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Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
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VHDL IP core library.
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config GPIO_ICH
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tristate "Intel ICH GPIO"
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depends on PCI && X86
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select MFD_CORE
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select LPC_ICH
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help
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Say yes here to support the GPIO functionality of a number of Intel
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ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8
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ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
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Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
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If unsure, say N.
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config GPIO_IOP
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tristate "Intel IOP GPIO"
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depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
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help
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Say yes here to support the GPIO functionality of a number of Intel
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IOP32X or IOP33X.
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If unsure, say N.
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config GPIO_LOONGSON
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bool "Loongson-2/3 GPIO support"
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depends on CPU_LOONGSON2 || CPU_LOONGSON3
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help
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driver for GPIO functionality on Loongson-2F/3A/3B processors.
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config GPIO_LPC18XX
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tristate "NXP LPC18XX/43XX GPIO support"
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default y if ARCH_LPC18XX
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depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
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help
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Select this option to enable GPIO driver for
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NXP LPC18XX/43XX devices.
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config GPIO_LYNXPOINT
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tristate "Intel Lynxpoint GPIO support"
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depends on ACPI && X86
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select GPIOLIB_IRQCHIP
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help
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driver for GPIO functionality on Intel Lynxpoint PCH chipset
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Requires ACPI device enumeration code to set up a platform device.
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config GPIO_MB86S7X
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bool "GPIO support for Fujitsu MB86S7x Platforms"
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depends on ARCH_MB86S7X || COMPILE_TEST
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help
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Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
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config GPIO_MENZ127
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tristate "MEN 16Z127 GPIO support"
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depends on MCB
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select GPIO_GENERIC
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help
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Say yes here to support the MEN 16Z127 GPIO Controller
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|
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config GPIO_MM_LANTIQ
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bool "Lantiq Memory mapped GPIOs"
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depends on LANTIQ && SOC_XWAY
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help
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|
This enables support for memory mapped GPIOs on the External Bus Unit
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(EBU) found on Lantiq SoCs. The gpios are output only as they are
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created by attaching a 16bit latch to the bus.
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|
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config GPIO_MOXART
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|
bool "MOXART GPIO support"
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depends on ARCH_MOXART || COMPILE_TEST
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select GPIO_GENERIC
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help
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Select this option to enable GPIO driver for
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MOXA ART SoC devices.
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config GPIO_MPC5200
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def_bool y
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depends on PPC_MPC52xx
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config GPIO_MPC8XXX
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bool "MPC512x/MPC8xxx/QorIQ GPIO support"
|
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depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
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FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
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COMPILE_TEST
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select GPIO_GENERIC
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select IRQ_DOMAIN
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help
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Say Y here if you're going to use hardware that connects to the
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MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
|
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|
|
config GPIO_MVEBU
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|
def_bool y
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depends on PLAT_ORION
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depends on OF
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|
select GENERIC_IRQ_CHIP
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|
|
config GPIO_MXC
|
|
def_bool y
|
|
depends on ARCH_MXC
|
|
select GPIO_GENERIC
|
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select GENERIC_IRQ_CHIP
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|
|
config GPIO_MXS
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|
def_bool y
|
|
depends on ARCH_MXS
|
|
select GPIO_GENERIC
|
|
select GENERIC_IRQ_CHIP
|
|
|
|
config GPIO_OCTEON
|
|
tristate "Cavium OCTEON GPIO"
|
|
depends on GPIOLIB && CAVIUM_OCTEON_SOC
|
|
default y
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|
help
|
|
Say yes here to support the on-chip GPIO lines on the OCTEON
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|
family of SOCs.
|
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|
|
config GPIO_OMAP
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|
tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
|
|
default y if ARCH_OMAP
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|
depends on ARM
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|
select GENERIC_IRQ_CHIP
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to enable GPIO support for TI OMAP SoCs.
|
|
|
|
config GPIO_PL061
|
|
bool "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_PXA
|
|
bool "PXA GPIO support"
|
|
depends on ARCH_PXA || ARCH_MMP
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|
help
|
|
Say yes here to support the PXA GPIO device
|
|
|
|
config GPIO_RCAR
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|
tristate "Renesas R-Car GPIO"
|
|
depends on ARCH_RENESAS || COMPILE_TEST
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to support GPIO on Renesas R-Car SoCs.
|
|
|
|
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
|
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|
|
config GPIO_STA2X11
|
|
bool "STA2x11/ConneXt GPIO support"
|
|
depends on MFD_STA2X11
|
|
select GENERIC_IRQ_CHIP
|
|
help
|
|
Say yes here to support the STA2x11/ConneXt GPIO device.
|
|
The GPIO module has 128 GPIO pins with alternate functions.
|
|
|
|
config GPIO_STP_XWAY
|
|
bool "XWAY STP GPIOs"
|
|
depends on SOC_XWAY
|
|
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 bit. 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 GENERIC_IRQ_CHIP
|
|
select OF_GPIO
|
|
|
|
config GPIO_TEGRA
|
|
bool "NVIDIA Tegra GPIO support"
|
|
default ARCH_TEGRA
|
|
depends on ARCH_TEGRA || COMPILE_TEST
|
|
depends on OF
|
|
help
|
|
Say yes here to support GPIO pins on NVIDIA Tegra 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_TZ1090
|
|
bool "Toumaz Xenif TZ1090 GPIO support"
|
|
depends on SOC_TZ1090
|
|
select GENERIC_IRQ_CHIP
|
|
default y
|
|
help
|
|
Say yes here to support Toumaz Xenif TZ1090 GPIOs.
|
|
|
|
config GPIO_TZ1090_PDC
|
|
bool "Toumaz Xenif TZ1090 PDC GPIO support"
|
|
depends on SOC_TZ1090
|
|
default y
|
|
help
|
|
Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
|
|
|
|
config GPIO_VF610
|
|
def_bool y
|
|
depends on ARCH_MXC && SOC_VF610
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to support Vybrid vf610 GPIOs.
|
|
|
|
config GPIO_VR41XX
|
|
tristate "NEC VR4100 series General-purpose I/O Uint support"
|
|
depends on CPU_VR41XX
|
|
help
|
|
Say yes here to support the NEC VR4100 series General-purpose I/O Uint
|
|
|
|
config GPIO_VX855
|
|
tristate "VIA VX855/VX875 GPIO"
|
|
depends on 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_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 && OF_GPIO
|
|
select GPIO_GENERIC
|
|
select GPIOLIB_IRQCHIP
|
|
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"
|
|
depends on OF_GPIO
|
|
help
|
|
Say yes here to support the Xilinx FPGA GPIO device
|
|
|
|
config GPIO_XLP
|
|
tristate "Netlogic XLP GPIO support"
|
|
depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
This driver provides support for GPIO interface on Netlogic XLP MIPS64
|
|
SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
|
|
XLP9XX and XLP5XX.
|
|
|
|
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_ZX
|
|
bool "ZTE ZX GPIO support"
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to support the GPIO device on ZTE ZX SoCs.
|
|
|
|
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.
|
|
|
|
endmenu
|
|
|
|
menu "Port-mapped I/O GPIO drivers"
|
|
depends on X86 # Unconditional I/O space access
|
|
|
|
config GPIO_104_DIO_48E
|
|
tristate "ACCES 104-DIO-48E GPIO support"
|
|
depends on ISA_BUS_API
|
|
select GPIOLIB_IRQCHIP
|
|
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 ISA_BUS_API
|
|
select GPIOLIB_IRQCHIP
|
|
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 ISA_BUS_API
|
|
select GPIOLIB_IRQCHIP
|
|
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 "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
|
|
help
|
|
This option enables support for GPIOs found on Fintek Super-I/O
|
|
chips F71869, F71869A, F71882FG, F71889F and F81866.
|
|
|
|
To compile this driver as a module, choose M here: the module will
|
|
be called f7188x-gpio.
|
|
|
|
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, IT8620E and IT8628E Super I/O chip 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 PCI
|
|
select MFD_CORE
|
|
select LPC_SCH
|
|
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_WS16C48
|
|
tristate "WinSystems WS16C48 GPIO support"
|
|
depends on 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_ADP5588
|
|
tristate "ADP5588 I2C GPIO expander"
|
|
help
|
|
This option enables support for 18 GPIOs found
|
|
on Analog Devices ADP5588 GPIO Expanders.
|
|
|
|
config GPIO_ADP5588_IRQ
|
|
bool "Interrupt controller support for ADP5588"
|
|
depends on GPIO_ADP5588=y
|
|
help
|
|
Say yes here to enable the adp5588 to be used as an interrupt
|
|
controller. It requires the driver to be built in the kernel.
|
|
|
|
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_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_MC9S08DZ60
|
|
bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
|
|
depends on I2C=y && MACH_MX35_3DS
|
|
help
|
|
Select this to enable the MC9S08DZ60 GPIO driver
|
|
|
|
config GPIO_PCA953X
|
|
tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
|
|
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, 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=y
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to enable the pca953x to be used as an interrupt
|
|
controller. It requires the driver to be built in the kernel.
|
|
|
|
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_SX150X
|
|
bool "Semtech SX150x I2C GPIO expander"
|
|
depends on I2C=y
|
|
select GPIOLIB_IRQCHIP
|
|
default n
|
|
help
|
|
Say yes here to provide support for Semtech SX150-series I2C
|
|
GPIO expanders. Compatible models include:
|
|
|
|
8 bits: sx1508q
|
|
16 bits: sx1509q
|
|
|
|
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.
|
|
|
|
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_ARIZONA
|
|
tristate "Wolfson Microelectronics Arizona class devices"
|
|
depends on MFD_ARIZONA
|
|
help
|
|
Support for GPIOs on Wolfson Arizona class devices.
|
|
|
|
config GPIO_CRYSTAL_COVE
|
|
tristate "GPIO support for Crystal Cove PMIC"
|
|
depends on 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 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 controller 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 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_MAX77620
|
|
tristate "GPIO support for PMIC MAX77620 and MAX20024"
|
|
depends on MFD_MAX77620
|
|
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_MSIC
|
|
bool "Intel MSIC mixed signal gpio support"
|
|
depends on MFD_INTEL_MSIC
|
|
help
|
|
Enable support for GPIO on intel MSIC controllers found in
|
|
intel MID devices
|
|
|
|
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_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_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_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_UCB1400
|
|
tristate "Philips UCB1400 GPIO"
|
|
depends on UCB1400_CORE
|
|
help
|
|
This enables support for the Philips UCB1400 GPIO pins.
|
|
The UCB1400 is an AC97 audio codec.
|
|
|
|
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"
|
|
help
|
|
The AMD 8111 south bridge 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 uncarefull 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/bt8xxgpio.txt
|
|
|
|
If unsure, say N.
|
|
|
|
config GPIO_INTEL_MID
|
|
bool "Intel MID GPIO support"
|
|
depends on X86_INTEL_MID
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say Y here to support Intel MID GPIO.
|
|
|
|
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_ML_IOH
|
|
tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
|
|
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_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
|
|
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_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.
|
|
|
|
endmenu
|
|
|
|
menu "SPI or I2C GPIO expanders"
|
|
depends on (SPI_MASTER && !I2C) || I2C
|
|
|
|
config GPIO_MCP23S08
|
|
tristate "Microchip MCP23xxx I/O expander"
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
|
|
I/O expanders.
|
|
This provides a GPIO interface supporting inputs and outputs.
|
|
The I2C versions of the chips can be used as interrupt-controller.
|
|
|
|
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
|
|
|
|
endif
|