653 lines
19 KiB
Plaintext
653 lines
19 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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select GENERIC_GPIO
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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 OF_GPIO
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def_bool y
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depends on OF && !SPARC
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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 && EXPERIMENTAL
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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_MAX730X
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tristate
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comment "Memory mapped GPIO drivers:"
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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
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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_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 && 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 ARCH_MVEBU
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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_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_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_VT8500
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bool "VIA/Wondermedia SoC GPIO Support"
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depends on ARCH_VT8500
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help
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Say yes here to support the VT8500/WM8505/WM8650 GPIO controller.
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config GPIO_XILINX
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bool "Xilinx GPIO support"
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depends on PPC_OF || MICROBLAZE
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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_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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comment "I2C GPIO expanders:"
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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
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GPIO driver for Maxim MAX7301 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
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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
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Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
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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
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bool "Interrupt controller support for MAX732x"
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depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
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help
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Say yes here to enable the max732x to be used as an interrupt
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controller. It requires the driver to be built in the kernel.
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config GPIO_MC9S08DZ60
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bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
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depends on I2C=y && MACH_MX35_3DS
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help
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Select this to enable the MC9S08DZ60 GPIO driver
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config GPIO_PCA953X
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tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
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depends on I2C
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help
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Say yes here to provide access to several register-oriented
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SMBus I/O expanders, made mostly by NXP or TI. Compatible
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models include:
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4 bits: pca9536, pca9537
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8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
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pca9556, pca9557, pca9574, tca6408
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16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
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tca6416
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config GPIO_PCA953X_IRQ
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bool "Interrupt controller support for PCA953x"
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depends on GPIO_PCA953X=y
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help
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Say yes here to enable the pca953x to be used as an interrupt
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controller. It requires the driver to be built in the kernel.
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config GPIO_PCF857X
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tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
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depends on I2C
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select IRQ_DOMAIN
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help
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Say yes here to provide access to most "quasi-bidirectional" I2C
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GPIO expanders used for additional digital outputs or inputs.
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Most of these parts are from NXP, though TI is a second source for
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some of them. Compatible models include:
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8 bits: pcf8574, pcf8574a, pca8574, pca8574a,
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pca9670, pca9672, pca9674, pca9674a,
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max7328, max7329
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16 bits: pcf8575, pcf8575c, pca8575,
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pca9671, pca9673, pca9675
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Your board setup code will need to declare the expanders in
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use, and assign numbers to the GPIOs they expose. Those GPIOs
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can then be used from drivers and other kernel code, just like
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other GPIOs, but only accessible from task contexts.
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This driver provides an in-kernel interface to those GPIOs using
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platform-neutral GPIO calls.
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config GPIO_RC5T583
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bool "RICOH RC5T583 GPIO"
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depends on MFD_RC5T583
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help
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Select this option to enable GPIO driver for the Ricoh RC5T583
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chip family.
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This driver provides the support for driving/reading the gpio pins
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of RC5T583 device through standard gpio library.
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config GPIO_SX150X
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bool "Semtech SX150x I2C GPIO expander"
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depends on I2C=y
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default n
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help
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Say yes here to provide support for Semtech SX150-series I2C
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GPIO expanders. Compatible models include:
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8 bits: sx1508q
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16 bits: sx1509q
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config GPIO_STMPE
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bool "STMPE GPIOs"
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depends on MFD_STMPE
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help
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This enables support for the GPIOs found on the STMPE I/O
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Expanders.
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config GPIO_STP_XWAY
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bool "XWAY STP GPIOs"
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depends on SOC_XWAY
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help
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This enables support for the Serial To Parallel (STP) unit found on
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XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
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that can be up to 24 bit. This peripheral is aimed at driving leds.
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Some of the gpios/leds can be auto updated by the soc with dsl and
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phy status.
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config GPIO_TC3589X
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bool "TC3589X GPIOs"
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depends on MFD_TC3589X
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help
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This enables support for the GPIOs found on the TC3589X
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I/O Expander.
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config GPIO_TPS65912
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tristate "TI TPS65912 GPIO"
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depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
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help
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This driver supports TPS65912 gpio chip
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config GPIO_TWL4030
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tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
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depends on TWL4030_CORE
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help
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Say yes here to access the GPIO signals of various multi-function
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power management chips from Texas Instruments.
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config GPIO_TWL6040
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tristate "TWL6040 GPO"
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depends on TWL6040_CORE
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help
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Say yes here to access the GPO signals of twl6040
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audio chip from Texas Instruments.
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config GPIO_WM831X
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tristate "WM831x GPIOs"
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depends on MFD_WM831X
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help
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Say yes here to access the GPIO signals of WM831x power management
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chips from Wolfson Microelectronics.
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config GPIO_WM8350
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tristate "WM8350 GPIOs"
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depends on MFD_WM8350
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help
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Say yes here to access the GPIO signals of WM8350 power management
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chips from Wolfson Microelectronics.
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config GPIO_WM8994
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tristate "WM8994 GPIOs"
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depends on MFD_WM8994
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help
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Say yes here to access the GPIO signals of WM8994 audio hub
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CODECs from Wolfson Microelectronics.
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config GPIO_ADP5520
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tristate "GPIO Support for ADP5520 PMIC"
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depends on PMIC_ADP5520
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help
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This option enables support for on-chip GPIO found
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on Analog Devices ADP5520 PMICs.
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config GPIO_ADP5588
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tristate "ADP5588 I2C GPIO expander"
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depends on I2C
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help
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This option enables support for 18 GPIOs found
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on Analog Devices ADP5588 GPIO Expanders.
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config GPIO_ADP5588_IRQ
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bool "Interrupt controller support for ADP5588"
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depends on GPIO_ADP5588=y
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help
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Say yes here to enable the adp5588 to be used as an interrupt
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controller. It requires the driver to be built in the kernel.
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config GPIO_ADNP
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tristate "Avionic Design N-bit GPIO expander"
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depends on I2C && OF
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help
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This option enables support for N GPIOs found on Avionic Design
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I2C GPIO expanders. The register space will be extended by powers
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of two, so the controller will need to accomodate for that. For
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example: if a controller provides 48 pins, 6 registers will be
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enough to represent all pins, but the driver will assume a
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register layout for 64 pins (8 registers).
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comment "PCI GPIO expanders:"
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config GPIO_CS5535
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tristate "AMD CS5535/CS5536 GPIO support"
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depends on PCI && X86 && MFD_CS5535
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help
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The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
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can be used for quite a number of things. The CS5535/6 is found on
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AMD Geode and Lemote Yeeloong devices.
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If unsure, say N.
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config GPIO_BT8XX
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tristate "BT8XX GPIO abuser"
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depends on PCI && VIDEO_BT848=n
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help
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The BT8xx frame grabber chip has 24 GPIO pins than can be abused
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as a cheap PCI GPIO card.
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This chip can be found on Miro, Hauppauge and STB TV-cards.
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The card needs to be physically altered for using it as a
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GPIO card. For more information on how to build a GPIO card
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from a BT8xx TV card, see the documentation file at
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Documentation/bt8xxgpio.txt
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If unsure, say N.
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config GPIO_AMD8111
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tristate "AMD 8111 GPIO driver"
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depends on PCI
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help
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The AMD 8111 south bridge contains 32 GPIO pins which can be used.
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Note, that usually system firmware/ACPI handles GPIO pins on their
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own and users might easily break their systems with uncarefull usage
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of this driver!
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If unsure, say N
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config GPIO_LANGWELL
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bool "Intel Langwell/Penwell GPIO support"
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depends on PCI && X86
|
|
select IRQ_DOMAIN
|
|
help
|
|
Say Y here to support Intel Langwell/Penwell 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.
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|
|
|
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
|
|
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
|
|
bool "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 "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_AB8500
|
|
bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
|
|
depends on AB8500_CORE && BROKEN
|
|
help
|
|
Select this to enable the AB8500 IC GPIO driver
|
|
|
|
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
|
|
|
|
endif
|