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iio: counter: Add deprecation markings for IIO Counter attributes

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The IIO counter subdirectory is now superceded by the Counter subsystem.
This patch adds deprecation warnings to the documentation of the
relevant IIO Counter sysfs attributes.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
William Breathitt Gray 2019-04-02 15:30:46 +09:00 committed by Greg Kroah-Hartman
parent 7657b2c123
commit 4bb00e934d
2 changed files with 24 additions and 0 deletions
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8
Documentation/ABI/testing/sysfs-bus-iio
View File

@ -1656,6 +1656,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Raw counter device counts from channel Y. For quadrature
counters, multiplication by an available [Y]_scale results in
the counts of a single quadrature signal phase from channel Y.
@ -1664,6 +1666,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Raw counter device index value from channel Y. This attribute
provides an absolute positional reference (e.g. a pulse once per
revolution) which may be used to home positional systems as
@ -1673,6 +1677,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
KernelVersion: 4.12
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
A list of possible counting directions which are:
- "up" : counter device is increasing.
- "down": counter device is decreasing.
@ -1681,6 +1687,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
KernelVersion: 4.12
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Raw counter device counters direction for channel Y.
What: /sys/bus/iio/devices/iio:deviceX/in_phaseY_raw

16
Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
View File

@ -6,6 +6,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_index_synchronous_mode_available
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Discrete set of available values for the respective counter
configuration are listed in this file.
@ -13,6 +15,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_mode
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Count mode for channel Y. Four count modes are available:
normal, range limit, non-recycle, and modulo-n. The preset value
for channel Y is used by the count mode where required.
@ -47,6 +51,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_noise_error
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Read-only attribute that indicates whether excessive noise is
present at the channel Y count inputs in quadrature clock mode;
irrelevant in non-quadrature clock mode.
@ -55,6 +61,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_preset
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
If the counter device supports preset registers, the preset
count for channel Y is provided by this attribute.
@ -62,6 +70,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_quadrature_mode
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Configure channel Y counter for non-quadrature or quadrature
clock mode. Selecting non-quadrature clock mode will disable
synchronous load mode. In quadrature clock mode, the channel Y
@ -83,6 +93,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_set_to_preset_on_index
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Whether to set channel Y counter with channel Y preset value
when channel Y index input is active, or continuously count.
Valid attribute values are boolean.
@ -91,6 +103,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_index_polarity
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Active level of channel Y index input; irrelevant in
non-synchronous load mode.
@ -98,6 +112,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_synchronous_mode
KernelVersion: 4.10
Contact: linux-iio@vger.kernel.org
Description:
This interface is deprecated; please use the Counter subsystem.
Configure channel Y counter for non-synchronous or synchronous
load mode. Synchronous load mode cannot be selected in
non-quadrature clock mode.