mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-28 05:24:47 +08:00
510965dd4a
cycle:
- A new GPIO hogging mechanism has been added. This can
be used on boards that want to drive some GPIO line high,
low, or set it as input on boot and then never touch it
again. For some embedded systems this is bliss and
simplifies things to a great extent.
- Some API cleanup and closure: gpiod_get_array() and
gpiod_put_array() has been added to get and put GPIOs
in bulk as was possible with the non-descriptor API.
- Encapsulate cross-calls to the pin control subsystem in
<linux/gpio/driver.h>. Now this should be the only header
any GPIO driver needs to include or something is wrong.
Cleanups restricting drivers to this include are welcomed
if tested.
- Sort the GPIO Kconfig and split it into submenus, as
it was becoming and unstructured, illogical and
unnavigatable mess. I hope this is easier to follow.
Menus that require a certain subsystem like I2C can
now be hidden nicely for example, still working on
others.
- New drivers:
- New driver for the Altera Soft GPIO.
- The F7188x driver now handles the F71869 and
F71869A variants.
- The MIPS Loongson driver has been moved to
drivers/gpio for consolidation and cleanup.
- Cleanups:
- The MAX732x is converted to use the GPIOLIB_IRQCHIP
infrastructure.
- The PCF857x is converted to use the GPIOLIB_IRQCHIP
infrastructure.
- Radical cleanup of the OMAP driver.
- Misc:
- Enable the DWAPB GPIO for all architectures. This is
a "hard IP" block from Synopsys which has started to
turn up in so diverse architectures as X86 Quark, ARC
and a slew of ARM systems. So even though it's not an
expander, it's generic enough to be available for all.
- We add a mock GPIO on Crystalcove PMIC after a long
discussion with Daniel Vetter et al, tracing back to
the shootout at the kernel summit where DRM drivers
and sub-componentization was discussed. In this case
a mock GPIO is assumed to be the best compromise
gaining some reuse of infrastructure without making
DRM drivers overly complex at the same time. Let's
see.
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Merge tag 'gpio-v4.1-1' 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 v4.1 development cycle:
- A new GPIO hogging mechanism has been added. This can be used on
boards that want to drive some GPIO line high, low, or set it as
input on boot and then never touch it again. For some embedded
systems this is bliss and simplifies things to a great extent.
- Some API cleanup and closure: gpiod_get_array() and
gpiod_put_array() has been added to get and put GPIOs in bulk as
was possible with the non-descriptor API.
- Encapsulate cross-calls to the pin control subsystem in
<linux/gpio/driver.h>. Now this should be the only header any GPIO
driver needs to include or something is wrong. Cleanups
restricting drivers to this include are welcomed if tested.
- Sort the GPIO Kconfig and split it into submenus, as it was
becoming and unstructured, illogical and unnavigatable mess. I
hope this is easier to follow. Menus that require a certain
subsystem like I2C can now be hidden nicely for example, still
working on others.
- New drivers:
- New driver for the Altera Soft GPIO.
- The F7188x driver now handles the F71869 and F71869A variants.
- The MIPS Loongson driver has been moved to drivers/gpio for
consolidation and cleanup.
- Cleanups:
- The MAX732x is converted to use the GPIOLIB_IRQCHIP
infrastructure.
- The PCF857x is converted to use the GPIOLIB_IRQCHIP
infrastructure.
- Radical cleanup of the OMAP driver.
- Misc:
- Enable the DWAPB GPIO for all architectures. This is a "hard
IP" block from Synopsys which has started to turn up in so
diverse architectures as X86 Quark, ARC and a slew of ARM
systems. So even though it's not an expander, it's generic
enough to be available for all.
- We add a mock GPIO on Crystalcove PMIC after a long discussion
with Daniel Vetter et al, tracing back to the shootout at the
kernel summit where DRM drivers and sub-componentization was
discussed. In this case a mock GPIO is assumed to be the best
compromise gaining some reuse of infrastructure without making
DRM drivers overly complex at the same time. Let's see"
* tag 'gpio-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (62 commits)
Revert "gpio: sch: use uapi/linux/pci_ids.h directly"
gpio: dwapb: remove dependencies
gpio: dwapb: enable for ARC
gpio: removing kfree remove functionality
gpio: mvebu: Fix mask/unmask managment per irq chip type
gpio: split GPIO drivers in submenus
gpio: move MFD GPIO drivers under their own comment
gpio: move BCM Kona Kconfig option
gpio: arrange SPI Kconfig symbols alphabetically
gpio: arrange PCI GPIO controllers alphabetically
gpio: arrange I2C Kconfig symbols alphabetically
gpio: arrange Kconfig symbols alphabetically
gpio: ich: Implement get_direction function
gpio: use (!foo) instead of (foo == NULL)
gpio: arizona: drop owner assignment from platform_drivers
gpio: max7300: remove 'ret' variable
gpio: use devm_kzalloc
gpio: sch: use uapi/linux/pci_ids.h directly
gpio: x-gene: fix devm_ioremap_resource() check
gpio: loongson: Add Loongson-3A/3B GPIO driver support
...
1000 lines
28 KiB
Plaintext
1000 lines
28 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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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 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 GPIO_GENERIC
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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_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_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_F7188X
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tristate "F71869, F71869A, 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 F71869, F71869A, 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_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_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_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_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
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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_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_MOXART
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bool "MOXART GPIO support"
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depends on ARCH_MOXART
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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 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_QCOM
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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_OMAP
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bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
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default y if ARCH_OMAP
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depends on ARM
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select GENERIC_IRQ_CHIP
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select GPIOLIB_IRQCHIP
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help
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Say yes here to enable GPIO support for TI OMAP 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 IRQ_DOMAIN
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select GPIOLIB_IRQCHIP
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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 && (ARCH_SHMOBILE || COMPILE_TEST)
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select GPIOLIB_IRQCHIP
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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_SCH
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tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 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, Intel Centerton processor or
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Intel Quark X1000 SoC.
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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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The Intel Quark X1000 SoC has 2 GPIOs powered by the core
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power well and 6 from the suspend power well.
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config GPIO_SCH311X
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tristate "SMSC SCH311x SuperI/O GPIO"
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help
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Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
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SCH3116 "Super I/O" chipsets.
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To compile this driver as a module, choose M here: the module will
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be called gpio-sch311x.
|
|
|
|
config GPIO_SPEAR_SPICS
|
|
bool "ST SPEAr13xx SPI Chip Select as GPIO support"
|
|
depends on PLAT_SPEAR
|
|
select GENERIC_IRQ_CHIP
|
|
help
|
|
Say yes here to support ST SPEAr SPI Chip Select as GPIO device
|
|
|
|
config GPIO_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_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_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
|
|
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 && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
|
|
help
|
|
Say yes here to support the Xilinx FPGA GPIO device
|
|
|
|
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
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say yes here to support Xilinx Zynq GPIO controller.
|
|
|
|
endmenu
|
|
|
|
menu "I2C GPIO expanders"
|
|
depends on I2C
|
|
|
|
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
|
|
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"
|
|
depends on I2C
|
|
select GPIO_MAX730X
|
|
help
|
|
GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
|
|
|
|
config GPIO_MAX732X
|
|
tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
|
|
depends on I2C
|
|
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"
|
|
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, 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"
|
|
depends on I2C
|
|
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
|
|
|
|
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_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_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_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_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"
|
|
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_BT8XX
|
|
tristate "BT8XX GPIO abuser"
|
|
depends on PCI && 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 PCI && X86
|
|
select GPIOLIB_IRQCHIP
|
|
help
|
|
Say Y here to support Intel Mid GPIO.
|
|
|
|
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_PCH
|
|
tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
|
|
depends on PCI && (X86_32 || 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"
|
|
depends on PCI
|
|
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 && PCI && 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 SPI_MASTER && 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"
|
|
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.
|
|
The I2C versions of the chips can be used as interrupt-controller.
|
|
|
|
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.
|
|
|
|
endmenu
|
|
|
|
menu "USB GPIO expanders"
|
|
depends on USB
|
|
|
|
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.
|
|
|
|
endmenu
|
|
|
|
endif
|