xref: /linux/drivers/counter/Kconfig (revision 9a6b55ac) 
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Counter devices
4#
5
6menuconfig COUNTER
7	tristate "Counter support"
8	help
9	  This enables counter device support through the Generic Counter
10	  interface. You only need to enable this, if you also want to enable
11	  one or more of the counter device drivers below.
12
13if COUNTER
14
15config 104_QUAD_8
16	tristate "ACCES 104-QUAD-8 driver"
17	depends on PC104 && X86 && IIO
18	select ISA_BUS_API
19	help
20	  Say yes here to build support for the ACCES 104-QUAD-8 quadrature
21	  encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).
22
23	  A counter's respective error flag may be cleared by performing a write
24	  operation on the respective count value attribute. Although the
25	  104-QUAD-8 counters have a 25-bit range, only the lower 24 bits may be
26	  set, either directly or via the counter's preset attribute. Interrupts
27	  are not supported by this driver.
28
29	  The base port addresses for the devices may be configured via the base
30	  array module parameter.
31
32config STM32_TIMER_CNT
33	tristate "STM32 Timer encoder counter driver"
34	depends on MFD_STM32_TIMERS || COMPILE_TEST
35	help
36	  Select this option to enable STM32 Timer quadrature encoder
37	  and counter driver.
38
39	  To compile this driver as a module, choose M here: the
40	  module will be called stm32-timer-cnt.
41
42config STM32_LPTIMER_CNT
43	tristate "STM32 LP Timer encoder counter driver"
44	depends on (MFD_STM32_LPTIMER || COMPILE_TEST) && IIO
45	help
46	  Select this option to enable STM32 Low-Power Timer quadrature encoder
47	  and counter driver.
48
49	  To compile this driver as a module, choose M here: the
50	  module will be called stm32-lptimer-cnt.
51
52config TI_EQEP
53	tristate "TI eQEP counter driver"
54	depends on (SOC_AM33XX || COMPILE_TEST)
55	select REGMAP_MMIO
56	help
57	  Select this option to enable the Texas Instruments Enhanced Quadrature
58	  Encoder Pulse (eQEP) counter driver.
59
60	  To compile this driver as a module, choose M here: the module will be
61	  called ti-eqep.
62
63config FTM_QUADDEC
64	tristate "Flex Timer Module Quadrature decoder driver"
65	depends on HAS_IOMEM && OF
66	help
67	  Select this option to enable the Flex Timer Quadrature decoder
68	  driver.
69
70	  To compile this driver as a module, choose M here: the
71	  module will be called ftm-quaddec.
72
73endif # COUNTER
74