mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 18:07:03 +00:00
1e4c88420e
This converts the gpio-ep93xx driver into a platform_driver and uses the basic_mmio_gpio library. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
458 lines
13 KiB
Plaintext
458 lines
13 KiB
Plaintext
#
|
|
# GPIO infrastructure and drivers
|
|
#
|
|
|
|
config ARCH_WANT_OPTIONAL_GPIOLIB
|
|
bool
|
|
help
|
|
Select this config option from the architecture Kconfig, if
|
|
it is possible to use gpiolib on the architecture, but let the
|
|
user decide whether to actually build it or not.
|
|
Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
|
|
not depend on GPIOs being available, but rather let the user
|
|
decide whether he needs it or not.
|
|
|
|
config ARCH_REQUIRE_GPIOLIB
|
|
bool
|
|
select GPIOLIB
|
|
help
|
|
Platforms select gpiolib if they use this infrastructure
|
|
for all their GPIOs, usually starting with ones integrated
|
|
into SOC processors.
|
|
Selecting this from the architecture code will cause the gpiolib
|
|
code to always get built in.
|
|
|
|
|
|
|
|
menuconfig GPIOLIB
|
|
bool "GPIO Support"
|
|
depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
|
|
select GENERIC_GPIO
|
|
help
|
|
This enables GPIO support through the generic GPIO library.
|
|
You only need to enable this, if you also want to enable
|
|
one or more of the GPIO drivers below.
|
|
|
|
If unsure, say N.
|
|
|
|
if GPIOLIB
|
|
|
|
config DEBUG_GPIO
|
|
bool "Debug GPIO calls"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
Say Y here to add some extra checks and diagnostics to GPIO calls.
|
|
These checks help ensure that GPIOs have been properly initialized
|
|
before they are used, and that sleeping calls are not made from
|
|
non-sleeping contexts. They can make bitbanged serial protocols
|
|
slower. The diagnostics help catch the type of setup errors
|
|
that are most common when setting up new platforms or boards.
|
|
|
|
config GPIO_SYSFS
|
|
bool "/sys/class/gpio/... (sysfs interface)"
|
|
depends on SYSFS && EXPERIMENTAL
|
|
help
|
|
Say Y here to add a sysfs interface for GPIOs.
|
|
|
|
This is mostly useful to work around omissions in a system's
|
|
kernel support. Those are common in custom and semicustom
|
|
hardware assembled using standard kernels with a minimum of
|
|
custom patches. In those cases, userspace code may import
|
|
a given GPIO from the kernel, if no kernel driver requested it.
|
|
|
|
Kernel drivers may also request that a particular GPIO be
|
|
exported to userspace; this can be useful when debugging.
|
|
|
|
config GPIO_GENERIC
|
|
tristate
|
|
|
|
# put drivers in the right section, in alphabetical order
|
|
|
|
config GPIO_MAX730X
|
|
tristate
|
|
|
|
comment "Memory mapped GPIO drivers:"
|
|
|
|
config GPIO_GENERIC_PLATFORM
|
|
tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
|
|
select GPIO_GENERIC
|
|
help
|
|
Say yes here to support basic platform_device memory-mapped GPIO controllers.
|
|
|
|
config GPIO_IT8761E
|
|
tristate "IT8761E GPIO support"
|
|
help
|
|
Say yes here to support GPIO functionality of IT8761E super I/O chip.
|
|
|
|
config GPIO_EP93XX
|
|
def_bool y
|
|
depends on ARCH_EP93XX
|
|
select GPIO_GENERIC
|
|
|
|
config GPIO_EXYNOS4
|
|
def_bool y
|
|
depends on CPU_EXYNOS4210
|
|
|
|
config GPIO_MXC
|
|
def_bool y
|
|
depends on ARCH_MXC
|
|
select GPIO_GENERIC
|
|
select GENERIC_IRQ_CHIP
|
|
|
|
config GPIO_MXS
|
|
def_bool y
|
|
depends on ARCH_MXS
|
|
select GPIO_GENERIC
|
|
select GENERIC_IRQ_CHIP
|
|
|
|
config GPIO_PLAT_SAMSUNG
|
|
def_bool y
|
|
depends on SAMSUNG_GPIOLIB_4BIT
|
|
|
|
config GPIO_S5PC100
|
|
def_bool y
|
|
depends on CPU_S5PC100
|
|
|
|
config GPIO_S5PV210
|
|
def_bool y
|
|
depends on CPU_S5PV210
|
|
|
|
config GPIO_PL061
|
|
bool "PrimeCell PL061 GPIO support"
|
|
depends on ARM_AMBA
|
|
help
|
|
Say yes here to support the PrimeCell PL061 GPIO device
|
|
|
|
config GPIO_XILINX
|
|
bool "Xilinx GPIO support"
|
|
depends on PPC_OF || MICROBLAZE
|
|
help
|
|
Say yes here to support the Xilinx FPGA GPIO device
|
|
|
|
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_SCH
|
|
tristate "Intel SCH/TunnelCreek GPIO"
|
|
depends on PCI && X86
|
|
select MFD_CORE
|
|
select LPC_SCH
|
|
help
|
|
Say yes here to support GPIO interface on Intel Poulsbo SCH
|
|
or Intel Tunnel Creek processor.
|
|
The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
|
|
powered by the core power rail and are turned off during sleep
|
|
modes (S3 and higher). The remaining four GPIOs are powered by
|
|
the Intel SCH suspend power supply. These GPIOs remain
|
|
active during S3. The suspend powered GPIOs can be used to wake the
|
|
system from the Suspend-to-RAM state.
|
|
The Intel Tunnel Creek processor has 5 GPIOs powered by the
|
|
core power rail and 9 from suspend power supply.
|
|
|
|
config GPIO_VX855
|
|
tristate "VIA VX855/VX875 GPIO"
|
|
depends on MFD_SUPPORT && 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.
|
|
|
|
comment "I2C GPIO expanders:"
|
|
|
|
config GPIO_MAX7300
|
|
tristate "Maxim MAX7300 GPIO expander"
|
|
depends on I2C
|
|
select GPIO_MAX730X
|
|
help
|
|
GPIO driver for Maxim MAX7301 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 && GENERIC_HARDIRQS
|
|
help
|
|
Say yes here to enable the max732x to be used as an interrupt
|
|
controller. It requires the driver to be built in the kernel.
|
|
|
|
config GPIO_PCA953X
|
|
tristate "PCA953x, PCA955x, 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, pca9534, pca9538, pca9554, pca9557,
|
|
tca6408
|
|
|
|
16 bits: pca9535, pca9539, pca9555, tca6416
|
|
|
|
config GPIO_PCA953X_IRQ
|
|
bool "Interrupt controller support for PCA953x"
|
|
depends on GPIO_PCA953X=y
|
|
help
|
|
Say yes here to enable the pca953x to be used as an interrupt
|
|
controller. It requires the driver to be built in the kernel.
|
|
|
|
config GPIO_PCF857X
|
|
tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
|
|
depends on I2C
|
|
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
|
|
default n
|
|
help
|
|
Say yes here to provide support for Semtech SX150-series I2C
|
|
GPIO expanders. Compatible models include:
|
|
|
|
8 bits: sx1508q
|
|
16 bits: sx1509q
|
|
|
|
config GPIO_STMPE
|
|
bool "STMPE GPIOs"
|
|
depends on MFD_STMPE
|
|
help
|
|
This enables support for the GPIOs found on the STMPE I/O
|
|
Expanders.
|
|
|
|
config GPIO_TC3589X
|
|
bool "TC3589X GPIOs"
|
|
depends on MFD_TC3589X
|
|
help
|
|
This enables support for the GPIOs found on the TC3589X
|
|
I/O Expander.
|
|
|
|
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_WM831X
|
|
tristate "WM831x GPIOs"
|
|
depends on MFD_WM831X
|
|
help
|
|
Say yes here to access the GPIO signals of WM831x power management
|
|
chips from Wolfson Microelectronics.
|
|
|
|
config GPIO_WM8350
|
|
tristate "WM8350 GPIOs"
|
|
depends on MFD_WM8350
|
|
help
|
|
Say yes here to access the GPIO signals of WM8350 power management
|
|
chips from Wolfson Microelectronics.
|
|
|
|
config GPIO_WM8994
|
|
tristate "WM8994 GPIOs"
|
|
depends on MFD_WM8994
|
|
help
|
|
Say yes here to access the GPIO signals of WM8994 audio hub
|
|
CODECs from Wolfson Microelectronics.
|
|
|
|
config GPIO_ADP5520
|
|
tristate "GPIO Support for ADP5520 PMIC"
|
|
depends on PMIC_ADP5520
|
|
help
|
|
This option enables support for on-chip GPIO found
|
|
on Analog Devices ADP5520 PMICs.
|
|
|
|
config GPIO_ADP5588
|
|
tristate "ADP5588 I2C GPIO expander"
|
|
depends on I2C
|
|
help
|
|
This option enables support for 18 GPIOs found
|
|
on Analog Devices ADP5588 GPIO Expanders.
|
|
|
|
config GPIO_ADP5588_IRQ
|
|
bool "Interrupt controller support for ADP5588"
|
|
depends on GPIO_ADP5588=y
|
|
help
|
|
Say yes here to enable the adp5588 to be used as an interrupt
|
|
controller. It requires the driver to be built in the kernel.
|
|
|
|
comment "PCI GPIO expanders:"
|
|
|
|
config GPIO_CS5535
|
|
tristate "AMD CS5535/CS5536 GPIO support"
|
|
depends on PCI && X86 && !CS5535_GPIO && MFD_CS5535
|
|
help
|
|
The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
|
|
can be used for quite a number of things. The CS5535/6 is found on
|
|
AMD Geode and Lemote Yeeloong devices.
|
|
|
|
If unsure, say N.
|
|
|
|
config GPIO_BT8XX
|
|
tristate "BT8XX GPIO abuser"
|
|
depends on PCI && VIDEO_BT848=n
|
|
help
|
|
The BT8xx frame grabber chip has 24 GPIO pins than can be abused
|
|
as a cheap PCI GPIO card.
|
|
|
|
This chip can be found on Miro, Hauppauge and STB TV-cards.
|
|
|
|
The card needs to be physically altered for using it as a
|
|
GPIO card. For more information on how to build a GPIO card
|
|
from a BT8xx TV card, see the documentation file at
|
|
Documentation/bt8xxgpio.txt
|
|
|
|
If unsure, say N.
|
|
|
|
config GPIO_LANGWELL
|
|
bool "Intel Langwell/Penwell GPIO support"
|
|
depends on PCI && X86
|
|
help
|
|
Say Y here to support Intel Langwell/Penwell GPIO.
|
|
|
|
config GPIO_PCH
|
|
tristate "Intel EG20T PCH / OKI SEMICONDUCTOR ML7223 IOH GPIO"
|
|
depends on PCI && X86
|
|
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 OKI SEMICONDUCTOR IOH(Input/
|
|
Output Hub), ML7223.
|
|
ML7223 IOH is for MP(Media Phone) use.
|
|
ML7223 is companion chip for Intel Atom E6xx series.
|
|
ML7223 is completely compatible for Intel EG20T PCH.
|
|
|
|
config GPIO_ML_IOH
|
|
tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
|
|
depends on PCI
|
|
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_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_SUPPORT
|
|
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 MCP23Sxx I/O expander"
|
|
depends on SPI_MASTER
|
|
help
|
|
SPI driver for Microchip MCP23S08/MPC23S17 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_TPS65910
|
|
bool "TPS65910 GPIO"
|
|
depends on MFD_TPS65910
|
|
help
|
|
Select this option to enable GPIO driver for the TPS65910
|
|
chip family.
|
|
endif
|