Duplicate ABIs are not valid, so let's consolidate these sysfs attributes into the main sysfs-bus-counter documentation file. Cc: Patrick Havelange <patrick.havelange@xxxxxxxxxxxxx> Reviewed-by: David Lechner <david@xxxxxxxxxxxxxx> Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx> --- Documentation/ABI/testing/sysfs-bus-counter | 76 ++++++++++++++++++- .../ABI/testing/sysfs-bus-counter-104-quad-8 | 61 --------------- .../ABI/testing/sysfs-bus-counter-ftm-quaddec | 16 ---- MAINTAINERS | 4 +- 4 files changed, 75 insertions(+), 82 deletions(-) delete mode 100644 Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 delete mode 100644 Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec diff --git a/Documentation/ABI/testing/sysfs-bus-counter b/Documentation/ABI/testing/sysfs-bus-counter index e9d9e50f03be..20fe5afd4f9e 100644 --- a/Documentation/ABI/testing/sysfs-bus-counter +++ b/Documentation/ABI/testing/sysfs-bus-counter @@ -57,6 +57,7 @@ Description: What: /sys/bus/counter/devices/counterX/countY/count_mode_available What: /sys/bus/counter/devices/counterX/countY/error_noise_available What: /sys/bus/counter/devices/counterX/countY/function_available +What: /sys/bus/counter/devices/counterX/countY/prescaler_available What: /sys/bus/counter/devices/counterX/countY/signalZ_action_available KernelVersion: 5.2 Contact: linux-iio@xxxxxxxxxxxxxxx @@ -154,6 +155,15 @@ Description: Count Y. If possible, this should match the name of the respective channel as it appears in the device datasheet. +What: /sys/bus/counter/devices/counterX/countY/prescaler +KernelVersion: 5.2 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Configure the prescaler value associated with Count Y. + On the FlexTimer, the counter clock source passes through a + prescaler (i.e. a counter). This acts like a clock + divider. + What: /sys/bus/counter/devices/counterX/countY/preset KernelVersion: 5.2 Contact: linux-iio@xxxxxxxxxxxxxxx @@ -224,11 +234,45 @@ Description: Read-only attribute that indicates the total number of Signals belonging to the Counter. -What: /sys/bus/counter/devices/counterX/signalY/signal +What: /sys/bus/counter/devices/counterX/signalY/cable_fault +KernelVersion: 5.7 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Read-only attribute that indicates whether a differential + encoder cable fault (not connected or loose wires) is detected + for the respective channel of Signal Y. Valid attribute values + are boolean. Detection must first be enabled via the + corresponding cable_fault_enable attribute. + +What: /sys/bus/counter/devices/counterX/signalY/cable_fault_enable +KernelVersion: 5.7 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Whether detection of differential encoder cable faults for the + respective channel of Signal Y is enabled. Valid attribute + values are boolean. + +What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler +KernelVersion: 5.7 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Filter clock factor for input Signal Y. This prescaler value + affects the inputs of both quadrature pair signals. + +What: /sys/bus/counter/devices/counterX/signalY/index_polarity KernelVersion: 5.2 Contact: linux-iio@xxxxxxxxxxxxxxx Description: - Signal data of Signal Y represented as a string. + Active level of index input Signal Y; irrelevant in + non-synchronous load mode. + +What: /sys/bus/counter/devices/counterX/signalY/index_polarity_available +What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode_available +KernelVersion: 5.2 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Discrete set of available values for the respective Signal Y + configuration are listed in this file. What: /sys/bus/counter/devices/counterX/signalY/name KernelVersion: 5.2 @@ -237,3 +281,31 @@ Description: Read-only attribute that indicates the device-specific name of Signal Y. If possible, this should match the name of the respective signal as it appears in the device datasheet. + +What: /sys/bus/counter/devices/counterX/signalY/signal +KernelVersion: 5.2 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Signal data of Signal Y represented as a string. + +What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode +KernelVersion: 5.2 +Contact: linux-iio@xxxxxxxxxxxxxxx +Description: + Configure the counter associated with Signal Y for + non-synchronous or synchronous load mode. Synchronous load mode + cannot be selected in non-quadrature (Pulse-Direction) clock + mode. + + non-synchronous: + A logic low level is the active level at this index + input. The index function (as enabled via preset_enable) + is performed directly on the active level of the index + input. + + synchronous: + Intended for interfacing with encoder Index output in + quadrature clock mode. The active level is configured + via index_polarity. The index function (as enabled via + preset_enable) is performed synchronously with the + quadrature clock on the active level of the index input. diff --git a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 b/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 deleted file mode 100644 index eac32180c40d..000000000000 --- a/Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 +++ /dev/null @@ -1,61 +0,0 @@ -What: /sys/bus/counter/devices/counterX/signalY/cable_fault -KernelVersion: 5.7 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Read-only attribute that indicates whether a differential - encoder cable fault (not connected or loose wires) is detected - for the respective channel of Signal Y. Valid attribute values - are boolean. Detection must first be enabled via the - corresponding cable_fault_enable attribute. - -What: /sys/bus/counter/devices/counterX/signalY/cable_fault_enable -KernelVersion: 5.7 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Whether detection of differential encoder cable faults for the - respective channel of Signal Y is enabled. Valid attribute - values are boolean. - -What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler -KernelVersion: 5.7 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Filter clock factor for input Signal Y. This prescaler value - affects the inputs of both quadrature pair signals. - -What: /sys/bus/counter/devices/counterX/signalY/index_polarity -KernelVersion: 5.2 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Active level of index input Signal Y; irrelevant in - non-synchronous load mode. - -What: /sys/bus/counter/devices/counterX/signalY/index_polarity_available -What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode_available -KernelVersion: 5.2 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Discrete set of available values for the respective Signal Y - configuration are listed in this file. - -What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode -KernelVersion: 5.2 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Configure the counter associated with Signal Y for - non-synchronous or synchronous load mode. Synchronous load mode - cannot be selected in non-quadrature (Pulse-Direction) clock - mode. - - non-synchronous: - A logic low level is the active level at this index - input. The index function (as enabled via preset_enable) - is performed directly on the active level of the index - input. - - synchronous: - Intended for interfacing with encoder Index output in - quadrature clock mode. The active level is configured - via index_polarity. The index function (as enabled via - preset_enable) is performed synchronously with the - quadrature clock on the active level of the index input. diff --git a/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec b/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec deleted file mode 100644 index 7d2e7b363467..000000000000 --- a/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec +++ /dev/null @@ -1,16 +0,0 @@ -What: /sys/bus/counter/devices/counterX/countY/prescaler_available -KernelVersion: 5.2 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Discrete set of available values for the respective Count Y - configuration are listed in this file. Values are delimited by - newline characters. - -What: /sys/bus/counter/devices/counterX/countY/prescaler -KernelVersion: 5.2 -Contact: linux-iio@xxxxxxxxxxxxxxx -Description: - Configure the prescaler value associated with Count Y. - On the FlexTimer, the counter clock source passes through a - prescaler (i.e. a counter). This acts like a clock - divider. diff --git a/MAINTAINERS b/MAINTAINERS index e679d422b472..8fa9202610c5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -299,7 +299,6 @@ M: William Breathitt Gray <vilhelm.gray@xxxxxxxxx> M: Syed Nayyar Waris <syednwaris@xxxxxxxxx> L: linux-iio@xxxxxxxxxxxxxxx S: Maintained -F: Documentation/ABI/testing/sysfs-bus-counter-104-quad-8 F: drivers/counter/104-quad-8.c ACCES PCI-IDIO-16 GPIO DRIVER @@ -4675,7 +4674,7 @@ COUNTER SUBSYSTEM M: William Breathitt Gray <vilhelm.gray@xxxxxxxxx> L: linux-iio@xxxxxxxxxxxxxxx S: Maintained -F: Documentation/ABI/testing/sysfs-bus-counter* +F: Documentation/ABI/testing/sysfs-bus-counter F: Documentation/driver-api/generic-counter.rst F: drivers/counter/ F: include/linux/counter.h @@ -7087,7 +7086,6 @@ FLEXTIMER FTM-QUADDEC DRIVER M: Patrick Havelange <patrick.havelange@xxxxxxxxxxxxx> L: linux-iio@xxxxxxxxxxxxxxx S: Maintained -F: Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec F: Documentation/devicetree/bindings/counter/ftm-quaddec.txt F: drivers/counter/ftm-quaddec.c -- 2.32.0
