mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-17 07:54:54 +08:00
c2d3306991
- Merged the GPIO descriptor API from Alexandre Courbot.
This is a first step toward trying to get rid of the
global GPIO numberspace for the future.
- Add an API so that driver can flag that a certain GPIO
line is being used by a irqchip backend for generating
IRQs, so that we can enforce checks, like not allowing
users to switch that line to an output at runtime, since
this makes no sense. Implemented corresponding calls
in a few select drivers.
- ACPI GPIO cleanups, refactorings and switch to using the
descriptor-based interface.
- Support for the TPS80036 Palmas GPIO variant.
- A new driver for the Broadcom Kona GPIO SoC IP block.
- Device tree support for the PCF857x driver.
- A set of ARM GPIO refactorings with the goal of getting
rid of a bunch of custom GPIO implementations from the
arch/arm/* tree:
- Move the IOP GPIO driver to the GPIO subsystem and
fix all users to use the gpiolib API for accessing
GPIOs. Delete the old custom GPIO implementation.
- Delete the unused custom PXA GPIO implemention.
- Convert all users of the IXP4 custom GPIO
implementation to use gpiolib and delete the custom
implementation.
- Delete the custom Gemini GPIO implementation, also
completely unused.
- Various cleanups and renamings.
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Merge tag 'gpio-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO changes from Linus Walleij:
"Here is the bulk of GPIO changes for the v3.13 development cycle.
I've got ACKs for the things that affect other subsystems (or it's my
own subsystem, like pinctrl). Most of that pertain to an attempt from
my side to consolidate and get rid of custom GPIO implementations in
the ARM tree. I will continue doing this.
The main change this time is the new GPIO descriptor API, background
for this can be found in Corbet's summary from this january in LWN:
http://lwn.net/Articles/533632/
Summary:
- Merged the GPIO descriptor API from Alexandre Courbot. This is a
first step toward trying to get rid of the global GPIO numberspace
for the future.
- Add an API so that driver can flag that a certain GPIO line is
being used by a irqchip backend for generating IRQs, so that we can
enforce checks, like not allowing users to switch that line to an
output at runtime, since this makes no sense. Implemented
corresponding calls in a few select drivers.
- ACPI GPIO cleanups, refactorings and switch to using the
descriptor-based interface.
- Support for the TPS80036 Palmas GPIO variant.
- A new driver for the Broadcom Kona GPIO SoC IP block.
- Device tree support for the PCF857x driver.
- A set of ARM GPIO refactorings with the goal of getting rid of a
bunch of custom GPIO implementations from the arch/arm/* tree:
* Move the IOP GPIO driver to the GPIO subsystem and fix all users
to use the gpiolib API for accessing GPIOs. Delete the old
custom GPIO implementation.
* Delete the unused custom PXA GPIO implemention.
* Convert all users of the IXP4 custom GPIO implementation to use
gpiolib and delete the custom implementation.
* Delete the custom Gemini GPIO implementation, also completely
unused.
- Various cleanups and renamings"
* tag 'gpio-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits)
gpio: gpio-mxs: Remove unneeded dt checks
gpio: pl061: don't depend on CONFIG_ARM
gpio: bcm-kona: add missing .owner to struct gpio_chip
gpiolib: provide a declaration of seq_file in gpio/driver.h
gpiolib: include gpio/consumer.h in of_gpio.h for desc_to_gpio()
gpio: provide stubs for devres gpio functions
gpiolib: devres: add missing headers
gpiolib: make GPIO_DEVRES depend on GPIOLIB
gpiolib: devres: fix devm_gpiod_get_index()
gpiolib / ACPI: document the GPIO descriptor based interface
gpiolib / ACPI: allow passing GPIOF_ACTIVE_LOW for GpioInt resources
gpiolib / ACPI: add ACPI support for gpiod_get_index()
gpiolib / ACPI: convert to gpiod interfaces
gpiolib: add gpiod_get() and gpiod_put() functions
gpiolib: port of_ functions to use gpiod
gpiolib: export descriptor-based GPIO interface
Fixup "MAINTAINERS: GPIO-INTEL-MID: add maintainer"
gpio: bcm281xx: Don't print addresses of GPIO area in probe()
gpio: tegra: use new gpio_lock_as_irq() API
gpio: rcar: Include linux/of.h header
...
795 lines
22 KiB
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795 lines
22 KiB
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#
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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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depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
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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 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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config GPIO_DA9052
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tristate "Dialog DA9052 GPIO"
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depends on PMIC_DA9052
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help
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Say yes here to enable the GPIO driver for the DA9052 chip.
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config GPIO_DA9055
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tristate "Dialog Semiconductor DA9055 GPIO"
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depends on MFD_DA9055
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help
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Say yes here to enable the GPIO driver for the DA9055 chip.
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The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
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be controller by this driver.
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If driver is built as a module it will be called gpio-da9055.
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config GPIO_MAX730X
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tristate
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comment "Memory mapped GPIO drivers:"
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config GPIO_CLPS711X
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tristate "CLPS711X GPIO support"
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depends on ARCH_CLPS711X
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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_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_IT8761E
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tristate "IT8761E GPIO support"
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depends on X86 # unconditional access to IO space.
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help
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Say yes here to support GPIO functionality of IT8761E super I/O chip.
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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_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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config GPIO_F7188X
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tristate "F71882FG and F71889F GPIO support"
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depends on X86
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help
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This option enables support for GPIOs found on Fintek Super-I/O
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chips F71882FG and F71889F.
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To compile this driver as a module, choose M here: the module will
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be called f7188x-gpio.
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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 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
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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 GPIOs.
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config GPIO_MSM_V1
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tristate "Qualcomm MSM GPIO v1"
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depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
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help
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Say yes here to support the GPIO interface on ARM v6 based
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Qualcomm MSM chips. Most of the pins on the MSM can be
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selected for GPIO, and are controlled by this driver.
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config GPIO_MSM_V2
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tristate "Qualcomm MSM GPIO v2"
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depends on GPIOLIB && OF && ARCH_MSM
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help
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Say yes here to support the GPIO interface on ARM v7 based
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Qualcomm MSM chips. Most of the pins on the MSM can be
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selected for GPIO, and are controlled by this driver.
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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 GPIO_GENERIC
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select GENERIC_IRQ_CHIP
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config GPIO_MXC
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def_bool y
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depends on ARCH_MXC
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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
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depends on ARCH_MXS
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select GPIO_GENERIC
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select GENERIC_IRQ_CHIP
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config GPIO_OCTEON
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tristate "Cavium OCTEON GPIO"
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depends on GPIOLIB && CAVIUM_OCTEON_SOC
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default y
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help
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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_PL061
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bool "PrimeCell PL061 GPIO support"
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depends on ARM_AMBA
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select GENERIC_IRQ_CHIP
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help
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Say yes here to support the PrimeCell PL061 GPIO device
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config GPIO_PXA
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bool "PXA GPIO support"
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depends on ARCH_PXA || ARCH_MMP
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help
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Say yes here to support the PXA GPIO device
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config GPIO_RCAR
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tristate "Renesas R-Car GPIO"
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depends on ARM
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help
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Say yes here to support GPIO on Renesas R-Car SoCs.
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config GPIO_SAMSUNG
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bool
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depends on PLAT_SAMSUNG
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help
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Legacy GPIO support. Use only for platforms without support for
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pinctrl.
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config GPIO_SPEAR_SPICS
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bool "ST SPEAr13xx SPI Chip Select as GPIO support"
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depends on PLAT_SPEAR
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select GENERIC_IRQ_CHIP
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help
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Say yes here to support ST SPEAr SPI Chip Select as GPIO device
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config GPIO_STA2X11
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bool "STA2x11/ConneXt GPIO support"
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depends on MFD_STA2X11
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select GENERIC_IRQ_CHIP
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help
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Say yes here to support the STA2x11/ConneXt GPIO device.
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The GPIO module has 128 GPIO pins with alternate functions.
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config GPIO_TS5500
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tristate "TS-5500 DIO blocks and compatibles"
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help
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This driver supports Digital I/O exposed by pin blocks found on some
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Technologic Systems platforms. It includes, but is not limited to, 3
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blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
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LCD port.
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config GPIO_TZ1090
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bool "Toumaz Xenif TZ1090 GPIO support"
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depends on SOC_TZ1090
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select GENERIC_IRQ_CHIP
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default y
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help
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Say yes here to support Toumaz Xenif TZ1090 GPIOs.
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config GPIO_TZ1090_PDC
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bool "Toumaz Xenif TZ1090 PDC GPIO support"
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depends on SOC_TZ1090
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default y
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help
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Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
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config GPIO_XILINX
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bool "Xilinx GPIO support"
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depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
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help
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Say yes here to support the Xilinx FPGA GPIO device
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config GPIO_VR41XX
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tristate "NEC VR4100 series General-purpose I/O Uint support"
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depends on CPU_VR41XX
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help
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Say yes here to support the NEC VR4100 series General-purpose I/O Uint
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config GPIO_SCH
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tristate "Intel SCH/TunnelCreek/Centerton GPIO"
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depends on PCI && X86
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select MFD_CORE
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select LPC_SCH
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help
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Say yes here to support GPIO interface on Intel Poulsbo SCH,
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Intel Tunnel Creek processor or Intel Centerton processor.
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The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
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powered by the core power rail and are turned off during sleep
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modes (S3 and higher). The remaining four GPIOs are powered by
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the Intel SCH suspend power supply. These GPIOs remain
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active during S3. The suspend powered GPIOs can be used to wake the
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system from the Suspend-to-RAM state.
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The Intel Tunnel Creek processor has 5 GPIOs powered by the
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core power rail and 9 from suspend power supply.
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The Intel Centerton processor has a total of 30 GPIO pins.
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Twenty-one are powered by the core power rail and 9 from the
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suspend power supply.
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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_VX855
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tristate "VIA VX855/VX875 GPIO"
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depends on PCI
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select MFD_CORE
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select MFD_VX855
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help
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Support access to the VX855/VX875 GPIO lines through the gpio library.
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This driver provides common support for accessing the device,
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additional drivers must be enabled in order to use the
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functionality of the device.
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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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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_LYNXPOINT
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bool "Intel Lynxpoint GPIO support"
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depends on ACPI && X86
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select IRQ_DOMAIN
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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_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_TB10X
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bool
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select OF_GPIO
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comment "I2C GPIO expanders:"
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|
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config GPIO_ARIZONA
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tristate "Wolfson Microelectronics Arizona class devices"
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depends on MFD_ARIZONA
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help
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Support for GPIOs on Wolfson Arizona class devices.
|
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config GPIO_MAX7300
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tristate "Maxim MAX7300 GPIO expander"
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depends on I2C
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select GPIO_MAX730X
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help
|
|
GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
|
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config GPIO_MAX732X
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tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
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depends on I2C
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help
|
|
Say yes here to support the MAX7319, MAX7320-7327 series of I2C
|
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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
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|
below:
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8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
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max7322 (4I4O), max7323 (4P4O)
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16 bits: max7324 (8I8O), max7325 (8P8O),
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max7326 (4I12O), max7327 (4P12O)
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Board setup code must specify the model to use, and the start
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number for these GPIOs.
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|
config GPIO_MAX732X_IRQ
|
|
bool "Interrupt controller support for MAX732x"
|
|
depends on GPIO_MAX732X=y
|
|
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 "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
|
|
depends on 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
|
|
|
|
16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
|
|
tca6416
|
|
|
|
config GPIO_PCA953X_IRQ
|
|
bool "Interrupt controller support for PCA953x"
|
|
depends on GPIO_PCA953X=y
|
|
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"
|
|
depends on I2C
|
|
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_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_SX150X
|
|
bool "Semtech SX150x I2C GPIO expander"
|
|
depends on I2C=y
|
|
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_STMPE
|
|
bool "STMPE GPIOs"
|
|
depends on MFD_STMPE
|
|
help
|
|
This enables support for the GPIOs found on the STMPE I/O
|
|
Expanders.
|
|
|
|
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_TC3589X
|
|
bool "TC3589X GPIOs"
|
|
depends on MFD_TC3589X
|
|
help
|
|
This enables support for the GPIOs found on the TC3589X
|
|
I/O Expander.
|
|
|
|
config GPIO_TPS65912
|
|
tristate "TI TPS65912 GPIO"
|
|
depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
|
|
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_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.
|
|
|
|
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_ADP5588
|
|
tristate "ADP5588 I2C GPIO expander"
|
|
depends on I2C
|
|
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 I2C && OF_GPIO
|
|
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).
|
|
|
|
comment "PCI GPIO expanders:"
|
|
|
|
config GPIO_CS5535
|
|
tristate "AMD CS5535/CS5536 GPIO support"
|
|
depends on PCI && X86 && 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_BT8XX
|
|
tristate "BT8XX GPIO abuser"
|
|
depends on PCI && VIDEO_BT848=n
|
|
help
|
|
The BT8xx frame grabber chip has 24 GPIO pins than 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_AMD8111
|
|
tristate "AMD 8111 GPIO driver"
|
|
depends on PCI
|
|
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_INTEL_MID
|
|
bool "Intel Mid GPIO support"
|
|
depends on PCI && X86
|
|
select IRQ_DOMAIN
|
|
help
|
|
Say Y here to support Intel Mid GPIO.
|
|
|
|
config GPIO_PCH
|
|
tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
|
|
depends on PCI && X86
|
|
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_ML_IOH
|
|
tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
|
|
depends on PCI
|
|
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_SODAVILLE
|
|
bool "Intel Sodaville GPIO support"
|
|
depends on X86 && PCI && OF
|
|
select GPIO_GENERIC
|
|
select GENERIC_IRQ_CHIP
|
|
help
|
|
Say Y here to support Intel Sodaville GPIO.
|
|
|
|
config GPIO_TIMBERDALE
|
|
bool "Support for timberdale GPIO IP"
|
|
depends on MFD_TIMBERDALE && HAS_IOMEM
|
|
---help---
|
|
Add support for the GPIO IP in the timberdale FPGA.
|
|
|
|
config GPIO_RDC321X
|
|
tristate "RDC R-321x GPIO support"
|
|
depends on PCI
|
|
select MFD_CORE
|
|
select MFD_RDC321X
|
|
help
|
|
Support for the RDC R321x SoC GPIOs over southbridge
|
|
PCI configuration space.
|
|
|
|
comment "SPI GPIO expanders:"
|
|
|
|
config GPIO_MAX7301
|
|
tristate "Maxim MAX7301 GPIO expander"
|
|
depends on SPI_MASTER
|
|
select GPIO_MAX730X
|
|
help
|
|
GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
|
|
|
|
config GPIO_MCP23S08
|
|
tristate "Microchip MCP23xxx I/O expander"
|
|
depends on (SPI_MASTER && !I2C) || I2C
|
|
help
|
|
SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
|
|
I/O expanders.
|
|
This provides a GPIO interface supporting inputs and outputs.
|
|
|
|
config GPIO_MC33880
|
|
tristate "Freescale MC33880 high-side/low-side switch"
|
|
depends on SPI_MASTER
|
|
help
|
|
SPI driver for Freescale MC33880 high-side/low-side switch.
|
|
This provides GPIO interface supporting inputs and outputs.
|
|
|
|
config GPIO_74X164
|
|
tristate "74x164 serial-in/parallel-out 8-bits shift register"
|
|
depends on SPI_MASTER
|
|
help
|
|
Platform driver for 74x164 compatible serial-in/parallel-out
|
|
8-outputs shift registers. This driver can be used to provide access
|
|
to more gpio outputs.
|
|
|
|
comment "AC97 GPIO expanders:"
|
|
|
|
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.
|
|
|
|
comment "LPC GPIO expanders:"
|
|
|
|
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.
|
|
|
|
comment "MODULbus GPIO expanders:"
|
|
|
|
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_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_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_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_BCM_KONA
|
|
bool "Broadcom Kona GPIO"
|
|
depends on OF_GPIO
|
|
help
|
|
Turn on GPIO support for Broadcom "Kona" chips.
|
|
|
|
comment "USB GPIO expanders:"
|
|
|
|
config GPIO_VIPERBOARD
|
|
tristate "Viperboard GPIO a & b support"
|
|
depends on MFD_VIPERBOARD && USB
|
|
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.
|
|
|
|
endif
|