Commit 106b1041 authored by Kamel Bouhara's avatar Kamel Bouhara Committed by Jonathan Cameron

counter: Add microchip TCB capture counter

This drivers allows to use the capture mode of the Timer Counter Block
hardware block available in Microchip SoCs through the counter subsystem.

Two functions of the counter are supported for the moment: period
capture and quadrature decoder. The latter is only supported by the
SAMA5 series of SoCs.

For the period capture mode a basic setup has been chosen that will
reset the counter each time the period is actually reached. Of course
the device offers much more possibilities.

For quadrature mode, both channel 0 and 1 must be configured even if we
only capture the position (no revolution/rotation).
Signed-off-by: default avatarKamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 7eb181cf
......@@ -70,4 +70,15 @@ config FTM_QUADDEC
To compile this driver as a module, choose M here: the
module will be called ftm-quaddec.
config MICROCHIP_TCB_CAPTURE
tristate "Microchip Timer Counter Capture driver"
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.
endif # COUNTER
......@@ -10,3 +10,4 @@ obj-$(CONFIG_STM32_TIMER_CNT) += stm32-timer-cnt.o
obj-$(CONFIG_STM32_LPTIMER_CNT) += stm32-lptimer-cnt.o
obj-$(CONFIG_TI_EQEP) += ti-eqep.o
obj-$(CONFIG_FTM_QUADDEC) += ftm-quaddec.o
obj-$(CONFIG_MICROCHIP_TCB_CAPTURE) += microchip-tcb-capture.o
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