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Message-Id: <c651ec1c541754ad108160839e2b8425ad089819.1623201081.git.vilhelm.gray@gmail.com>
Date:   Wed,  9 Jun 2021 10:31:04 +0900
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     jic23@...nel.org
Cc:     linux-stm32@...md-mailman.stormreply.com, kernel@...gutronix.de,
        a.fatoum@...gutronix.de, kamel.bouhara@...tlin.com,
        gwendal@...omium.org, alexandre.belloni@...tlin.com,
        david@...hnology.com, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        syednwaris@...il.com, patrick.havelange@...ensium.com,
        fabrice.gasnier@...com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, o.rempel@...gutronix.de,
        jarkko.nikula@...ux.intel.com,
        William Breathitt Gray <vilhelm.gray@...il.com>
Subject: [PATCH v11 01/33] docs: counter: Consolidate Counter sysfs attributes documentation

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@...ensium.com>
Reviewed-by: David Lechner <david@...hnology.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
---
 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@...r.kernel.org
@@ -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@...r.kernel.org
+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@...r.kernel.org
@@ -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@...r.kernel.org
+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@...r.kernel.org
+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@...r.kernel.org
+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@...r.kernel.org
 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@...r.kernel.org
+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@...r.kernel.org
+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@...r.kernel.org
+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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...r.kernel.org
-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@...il.com>
 M:	Syed Nayyar Waris <syednwaris@...il.com>
 L:	linux-iio@...r.kernel.org
 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@...il.com>
 L:	linux-iio@...r.kernel.org
 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@...ensium.com>
 L:	linux-iio@...r.kernel.org
 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

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