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# SPDX-License-Identifier: GPL-2.0-only
#
# Counter devices
#
menuconfig COUNTER
tristate "Counter support"
help
This enables counter device support through the Generic Counter
interface. You only need to enable this, if you also want to enable
one or more of the counter device drivers below.
if COUNTER
config 104_QUAD_8
tristate "ACCES 104-QUAD-8 driver"
depends on (PC104 && X86) || COMPILE_TEST
select ISA_BUS_API
help
Say yes here to build support for the ACCES 104-QUAD-8 quadrature
encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).
A counter's respective error flag may be cleared by performing a write
operation on the respective count value attribute. Although the
104-QUAD-8 counters have a 25-bit range, only the lower 24 bits may be
set, either directly or via the counter's preset attribute.
The base port addresses for the devices may be configured via the base
array module parameter. The interrupt line numbers for the devices may
be configured via the irq array module parameter.
config FTM_QUADDEC
tristate "Flex Timer Module Quadrature decoder driver"
depends on SOC_LS1021A || COMPILE_TEST
depends on HAS_IOMEM && OF
help
Select this option to enable the Flex Timer Quadrature decoder
driver.
To compile this driver as a module, choose M here: the
module will be called ftm-quaddec.
config INTEL_QEP
tristate "Intel Quadrature Encoder Peripheral driver"
depends on X86
depends on PCI
help
Select this option to enable the Intel Quadrature Encoder Peripheral
driver.
To compile this driver as a module, choose M here: the module
will be called intel-qep.
config INTERRUPT_CNT
tristate "Interrupt counter driver"
depends on GPIOLIB
help
Select this option to enable interrupt counter driver. Any interrupt
source can be used by this driver as the event source.
To compile this driver as a module, choose M here: the
module will be called interrupt-cnt.
config MICROCHIP_TCB_CAPTURE
tristate "Microchip Timer Counter Capture driver"
depends on SOC_AT91SAM9 || SOC_SAM_V7 || COMPILE_TEST
depends on HAS_IOMEM && OF
select REGMAP_MMIO
help
Select this option to enable the Microchip Timer Counter Block
capture driver.
To compile this driver as a module, choose M here: the
module will be called microchip-tcb-capture.
config STM32_LPTIMER_CNT
tristate "STM32 LP Timer encoder counter driver"
depends on MFD_STM32_LPTIMER || COMPILE_TEST
help
Select this option to enable STM32 Low-Power Timer quadrature encoder
and counter driver.
To compile this driver as a module, choose M here: the
module will be called stm32-lptimer-cnt.
config STM32_TIMER_CNT
tristate "STM32 Timer encoder counter driver"
depends on MFD_STM32_TIMERS || COMPILE_TEST
help
Select this option to enable STM32 Timer quadrature encoder
and counter driver.
To compile this driver as a module, choose M here: the
module will be called stm32-timer-cnt.
config TI_ECAP_CAPTURE
tristate "TI eCAP capture driver"
depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
depends on HAS_IOMEM
select REGMAP_MMIO
help
Select this option to enable the Texas Instruments Enhanced Capture
(eCAP) driver in input mode.
It can be used to timestamp events (falling/rising edges) detected
on ECAP input signal.
To compile this driver as a module, choose M here: the module
will be called ti-ecap-capture.
config TI_EQEP
tristate "TI eQEP counter driver"
depends on (SOC_AM33XX || COMPILE_TEST)
select REGMAP_MMIO
help
Select this option to enable the Texas Instruments Enhanced Quadrature
Encoder Pulse (eQEP) counter driver.
To compile this driver as a module, choose M here: the module will be
called ti-eqep.
endif # COUNTER
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