| Message ID | 20250306134441.582819-1-csokas.bence@prolan.hu (mailing list archive) |
|---|---|
| Headers | show |
| Series | microchip-tcb-capture: Add Capture, Compare, Overflow etc. events | expand |
On Thu, 06 Mar 2025 14:44:35 +0100, Bence Csókás wrote: > The TCB has three R/W-able "general purpose" hardware registers: > RA, RB and RC. The hardware is capable of: > * sampling Counter Value Register (CV) to RA/RB on a trigger edge > * sending an interrupt of this change > * sending an interrupt on CV change due to trigger > * triggering an interrupt on CV compare to RC > * stop counting after sampling to RB > > [...] Applied to counter-next, thanks! [1/2] counter: microchip-tcb-capture: Add IRQ handling commit: e5d5813968217b99ef2b83f13353967b218e3841 [2/2] counter: microchip-tcb-capture: Add capture extensions for registers RA/RB commit: 1adc6240a80278c613f655b71c6c0d447b2d5932 Bence, I've submitted a patchset adding support for the RC Compare as a new 'compare' Count extension.[^1] If it works for you, please Ack that series and we can hopefully get everything picked up by the 6.15 merge window. William Breathitt Gray <wbg@kernel.org> [^1] https://lore.kernel.org/linux-iio/20250306-introduce-compare-component-v1-0-93993b3dca9c@kernel.org/
The TCB has three R/W-able "general purpose" hardware registers: RA, RB and RC. The hardware is capable of: * sampling Counter Value Register (CV) to RA/RB on a trigger edge * sending an interrupt of this change * sending an interrupt on CV change due to trigger * triggering an interrupt on CV compare to RC * stop counting after sampling to RB To enable using these features in user-space, an interrupt handler was added, generating the necessary counter events. On top, RA/RB registers are added as Count Extensions. To aid interoperation, a uapi header was also added, containing the various numeral IDs of the Extensions, Event channels etc. Bence Csókás (2): counter: microchip-tcb-capture: Add IRQ handling counter: microchip-tcb-capture: Add capture extensions for registers RA/RB MAINTAINERS | 1 + drivers/counter/microchip-tcb-capture.c | 132 ++++++++++++++++++ .../linux/counter/microchip-tcb-capture.h | 40 ++++++ 3 files changed, 173 insertions(+) create mode 100644 include/uapi/linux/counter/microchip-tcb-capture.h