Changes in sysfs-bus-counter

b5198201 - counter: Introduce the compare component

Thu, 06 Mar 2025 07:05:43 +0000

counter: Introduce the compare componentCompare registers are used in devices to compare a counter channelagainst a particular count value (e.g. to check if a threshold has beenreached). A macro COUNTER_COMP_COMPARE() is introduced to facilitate thecreation of compare components as Count extensions.Link: https://lore.kernel.org/r/20250306-introduce-compare-component-v1-1-93993b3dca9c@kernel.orgSigned-off-by: William Breathitt Gray List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

3a913880 - Documentation: ABI: sysfs-bus-counter: Fix indentation

Fri, 21 Jul 2023 15:12:43 +0000

Documentation: ABI: sysfs-bus-counter: Fix indentationFix the indentation of the KernelVersion, Contact, and Description inexternal_input_phase_clock_select_available block by replacingspaces with tabs similar to other blocks.Reported-by: Pavel Machek Closes: https://lore.kernel.org/r/ZH8D3lCobUJP2T4K@duo.ucw.cz/Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20230721151243.282435-1-biju.das.jz@bp.renesas.com/Signed-off-by: William Breathitt Gray List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

d4284874 - counter: i8254: Introduce the Intel 8254 interface library module

Sun, 16 Apr 2023 17:36:53 +0000

counter: i8254: Introduce the Intel 8254 interface library moduleExposes consumer library functions providing support for interfacescompatible with the venerable Intel 8254 Programmable Interval Timer(PIT).The Intel 8254 PIT first appeared in the early 1980s and was usedinitially in IBM PC compatibles. The popularity of the original Intel825x family of chips led to many subsequent variants and clones of theinterface in various chips and integrated circuits. Although stillpopular, interfaces compatible with the Intel 8254 PIT are nowdaystypically found embedded in larger VLSI processing chips and FPGAcomponents rather than as discrete ICs.A CONFIG_I8254 Kconfig option is introduced by this patch. Moduleswanting access to these i8254 library functions should select thisKconfig option, and import the I8254 symbol namespace.Link: https://lore.kernel.org/r/f6fe32c2db9525d816ab1a01f45abad56c081652.1681665189.git.william.gray@linaro.org/Signed-off-by: William Breathitt Gray List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

7bb985ac - Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select

Thu, 30 Mar 2023 11:16:29 +0000

Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_selectThis commit adds cascade_counts_enable and external_input_phase_clock_select items to counter ABI file.(e.g. for Renesas MTU3 hardware used for phase counting).Signed-off-by: Biju Das Reviewed-by: William Breathitt Gray Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230330111632.169434-4-biju.das.jz@bp.renesas.com List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

5a47aed0 - Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items

Tue, 27 Sep 2022 22:53:44 +0000

Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows itemsThis commit adds frequency and num_overflows items to counter ABI file(e.g. for TI ECAP hardware used in capture operating mode).Signed-off-by: Julien Panis Link: https://lore.kernel.org/r/20220923142437.271328-3-jpanis@baylibre.com/Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/467ae80e97c586c6bc9c453c6156ffcb5d4853d6.1664318353.git.william.gray@linaro.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

45d29185 - counter: Introduce the Count capture component

Tue, 27 Sep 2022 22:53:40 +0000

counter: Introduce the Count capture componentSome devices provide a latch function to save historic Count values.This patch standardizes exposure of such functionality as Count capturecomponents. A COUNTER_COMP_CAPTURE macro is provided for driver authorsto define a capture component. A new event COUNTER_EVENT_CAPTURE isintroduced to represent Count value capture events.Cc: Julien Panis Link: https://lore.kernel.org/r/c239572ab4208d0d6728136e82a88ad464369a7a.1664204990.git.william.gray@linaro.org/Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/3cebaa0b807a225eb277d771504fe6dba7269ffd.1664318353.git.william.gray@linaro.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

650ae67b - counter: Introduce the Signal polarity component

Tue, 27 Sep 2022 22:53:38 +0000

counter: Introduce the Signal polarity componentThe Signal polarity component represents the active level of arespective Signal. There are two possible states: positive (rising edge)and negative (falling edge); enum counter_signal_polarity representsthese states. A convenience macro COUNTER_COMP_POLARITY() is providedfor driver authors to declare a Signal polarity component.Cc: Julien Panis Link: https://lore.kernel.org/r/8f47d6e1db71a11bb1e2666f8e2a6e9d256d4131.1664204990.git.william.gray@linaro.org/Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/b6e53438badcb6318997d13dd2fc052f97d808ac.1664318353.git.william.gray@linaro.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

feff17a5 - counter: Implement events_queue_size sysfs attribute

Wed, 29 Sep 2021 03:16:04 +0000

counter: Implement events_queue_size sysfs attributeThe events_queue_size sysfs attribute provides a way for users todynamically configure the Counter events queue size for the Countercharacter device interface. The size is in number of structcounter_event data structures. The number of elements will be rounded-upto a power of 2 due to a requirement of the kfifo_alloc function calledduring reallocation of the queue.Cc: Oleksij Rempel Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/c914b2db2ea0a2637633bcc3e86ded3c94783f2e.1632884256.git.vilhelm.gray@gmail.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

4bdec61d - counter: Implement *_component_id sysfs attributes

Wed, 29 Sep 2021 03:16:03 +0000

counter: Implement *_component_id sysfs attributesThe Generic Counter chrdev interface expects users to supply componentIDs in order to select extensions for requests. In order for users toknow what component ID belongs to which extension this information mustbe exposed. The *_component_id attribute provides a way for users todiscover what component ID belongs to which respective extension.Cc: David Lechner Cc: Gwendal Grignou Cc: Dan Carpenter Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/8961a11edbb882fc689e468194f5be75f572443e.1632884256.git.vilhelm.gray@gmail.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

bb6264a6 - counter: Implement signalZ_action_component_id sysfs attribute

Wed, 29 Sep 2021 03:16:02 +0000

counter: Implement signalZ_action_component_id sysfs attributeThe Generic Counter chrdev interface expects users to supply componentIDs in order to select Synapses for requests. In order for users to knowwhat component ID belongs to which Synapse this information must beexposed. The signalZ_action_component_id attribute provides a way forusers to discover what component ID belongs to the respective Synapse.Cc: Gwendal Grignou Cc: Dan Carpenter Reviewed-by: David Lechner Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/a6c81b2f1f5d0b8d59b1ebe4f0fed04914b07547.1632884256.git.vilhelm.gray@gmail.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

de8daf30 - docs: counter: Update to reflect sysfs internalization

Fri, 27 Aug 2021 03:47:49 +0000

docs: counter: Update to reflect sysfs internalizationThe Counter subsystem architecture and driver implementations havechanged in order to handle Counter sysfs interactions in a moreconsistent way. This patch updates the Generic Counter interfacedocumentation to reflect the changes.Reviewed-by: David Lechner Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/91cded13c0145c0d3d0acfe765a2ccb6c9af7c3b.1630031207.git.vilhelm.gray@gmail.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

769841c9 - docs: counter: Consolidate Counter sysfs attributes documentation

Wed, 09 Jun 2021 01:31:04 +0000

docs: counter: Consolidate Counter sysfs attributes documentationDuplicate ABIs are not valid, so let's consolidate these sysfsattributes into the main sysfs-bus-counter documentation file.Cc: Patrick Havelange Reviewed-by: David Lechner Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/c651ec1c541754ad108160839e2b8425ad089819.1623201081.git.vilhelm.gray@gmail.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

b711f687 - counter: Add support for Intel Quadrature Encoder Peripheral

Wed, 02 Jun 2021 11:32:59 +0000

counter: Add support for Intel Quadrature Encoder PeripheralAdd support for Intel Quadrature Encoder Peripheral found on IntelElkhart Lake platform.Initial implementation was done by Felipe Balbi while he was working atIntel with later changes from Raymond Tan and me.Co-developed-by: Felipe Balbi (Intel) Signed-off-by: Felipe Balbi (Intel) Co-developed-by: Raymond Tan Signed-off-by: Raymond Tan Signed-off-by: Jarkko Nikula Acked-by: William Breathitt Gray Link: https://lore.kernel.org/r/20210602113259.158674-1-jarkko.nikula@linux.intel.comSigned-off-by: Jonathan Cameron List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter

ea2b23b8 - counter: Documentation: Add Generic Counter sysfs documentation

Tue, 02 Apr 2019 06:30:37 +0000

counter: Documentation: Add Generic Counter sysfs documentationThis patch adds standard documentation for the userspace sysfsattributes of the Generic Counter interface.Reviewed-by: Jonathan Cameron Signed-off-by: William Breathitt Gray Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-bus-counter