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* [PATCH v2 0/3] Atmel TCB capture driver
@ 2020-04-09 14:13 Kamel Bouhara
  2020-04-09 14:13 ` [PATCH v2 1/3] ARM: at91: add atmel tcb capabilities Kamel Bouhara
                   ` (3 more replies)
  0 siblings, 4 replies; 10+ messages in thread
From: Kamel Bouhara @ 2020-04-09 14:13 UTC (permalink / raw)
  To: William Breathitt Gray, Rob Herring, Mark Rutland, Nicolas Ferre,
	Alexandre Belloni, Ludovic Desroches, linux-arm-kernel
  Cc: linux-iio, devicetree, Kamel Bouhara, Thomas Petazzoni, linux-input


Here is a new counter driver to support Atmel TCB capture devices.

Each SoC has two TCB blocks, each one including three independent
channels.The following series adds support for two counter modes:
increase and quadrature decoder.

As for the atmel clocksource and pwm, the counter driver needs to fill
some tcb capabilities in order to operate with the right configuration.
This is achieved in first patch of this series.

Please feel free to comment.


Changes from v2:
 - Fixed first patch not applying on mainline
 - Updated return code to -EINVAL when user is requesting qdec mode on
   a counter device not supporting it.
 - Added an error case returning -EINVAL when action edge is performed in
   qdec mode.
 - Removed no need to explicity setting ops to NULL from static struct as
   it is the default value.
 - Changed confusing code by using snprintf for the sake of clarity.
 - Changed code to use ARRAY_SIZE so that future reviewers will know
   that num_counts matches what's in the atmel_tc_count array without
   having to check so themselves.

Kamel Bouhara (3):
  ARM: at91: add atmel tcb capabilities
  dt-bindings: counter: atmel-tcb-capture counter
  counter: Add atmel TCB capture counter

 .../bindings/counter/atmel-tcb-capture.yaml   |  35 ++
 drivers/counter/Kconfig                       |  11 +
 drivers/counter/Makefile                      |   1 +
 drivers/counter/atmel-tcb-capture.c           | 394 ++++++++++++++++++
 include/soc/at91/atmel_tcb.h                  |   2 +
 5 files changed, 443 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/counter/atmel-tcb-capture.yaml
 create mode 100644 drivers/counter/atmel-tcb-capture.c


linux-arm-kernel mailing list

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2020-04-15  8:42 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-09 14:13 [PATCH v2 0/3] Atmel TCB capture driver Kamel Bouhara
2020-04-09 14:13 ` [PATCH v2 1/3] ARM: at91: add atmel tcb capabilities Kamel Bouhara
2020-04-12 10:31   ` Jonathan Cameron
2020-04-14  8:51     ` Kamel Bouhara
2020-04-09 14:14 ` [PATCH v2 2/3] dt-bindings: counter: atmel-tcb-capture counter Kamel Bouhara
2020-04-09 23:11   ` Rob Herring
2020-04-09 14:14 ` [PATCH v2 3/3] counter: Add atmel TCB capture counter Kamel Bouhara
2020-04-12 10:44   ` Jonathan Cameron
2020-04-15  8:40     ` Kamel Bouhara
2020-04-11 16:01 ` [PATCH v2 0/3] Atmel TCB capture driver William Breathitt Gray

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