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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-15 13:07:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-15 13:07:59 +0200 |
| commit | e04b1bff338255777a5a2ba70ec907d52b8e7c8a (patch) | |
| tree | 491b47c38621dbad0055031f2cf7a1c7a9fa1a90 /drivers/counter/Kconfig | |
| parent | be2c2edf5bfb0961122e4d0a968b632842de3bfb (diff) | |
| parent | d428487471ba6640ee8bcdabaf830aec08b85400 (diff) | |
Merge tag 'counter-updates-for-6.5a' of git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-next
William writes:
First set of Counter updates for the 6.5 cycle
Biggest changes in this set include the introduction of a new Intel 8254
interface library module and the refactoring of the existing 104-quad-8
modules to migrate it to the regmap API. Some other minor cleanups
touching tools/counter and stm32-timer-cnt are also present.
Changes
* 104-quad-8
- Remove reference in Kconfig to 25-bit counter value
- Utilize bitfield access macros
- Refactor to buffer states for CMR, IOR, and IDR
- Utilize helper functions to handle PR, FLAG and PSC
- Migrate to the regmap API
* i8254
- Introduce the Intel 8254 interface library module
* stm32-timer-cnt
- Reset TIM_TISEL to its default value in probe
* tools/counter
- Add .gitignore
- Remove lingering 'include' directories on make clean
* tag 'counter-updates-for-6.5a' of git://git.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
counter: i8254: Introduce the Intel 8254 interface library module
counter: 104-quad-8: Migrate to the regmap API
counter: 104-quad-8: Utilize helper functions to handle PR, FLAG and PSC
counter: 104-quad-8: Refactor to buffer states for CMR, IOR, and IDR
counter: 104-quad-8: Utilize bitfield access macros
tools/counter: Makefile: Remove lingering 'include' directories on make clean
tools/counter: Add .gitignore
counter: stm32-timer-cnt: Reset TIM_TISEL to its default value in probe
counter: 104-quad-8: Remove reference in Kconfig to 25-bit counter value
Diffstat (limited to 'drivers/counter/Kconfig')
| -rw-r--r-- | drivers/counter/Kconfig | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig index e65a2bf178b8..bca21df51168 100644 --- a/drivers/counter/Kconfig +++ b/drivers/counter/Kconfig @@ -10,6 +10,21 @@ menuconfig COUNTER interface. You only need to enable this, if you also want to enable one or more of the counter device drivers below. +config I8254 + tristate + select COUNTER + select REGMAP + help + Enables support for the i8254 interface library functions. The i8254 + interface library provides functions to facilitate communication with + interfaces compatible with the venerable Intel 8254 Programmable + Interval Timer (PIT). The Intel 825x family of chips was first + released in the early 1980s but compatible interfaces are nowadays + typically found embedded in larger VLSI processing chips and FPGA + components. + + If built as a module its name will be i8254. + if COUNTER config 104_QUAD_8 @@ -17,14 +32,15 @@ config 104_QUAD_8 depends on (PC104 && X86) || COMPILE_TEST depends on HAS_IOPORT_MAP select ISA_BUS_API + select REGMAP_MMIO 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. + operation on the respective count value attribute. The 104-QUAD-8 + counters 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 |