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Message-Id: <4c335e0eebfbaf6e86f41e0f2864d76993d90b13.1526487615.git.vilhelm.gray@gmail.com>
Date: Wed, 16 May 2018 13:52:39 -0400
From: William Breathitt Gray <vilhelm.gray@...il.com>
To: jic23@...nel.org
Cc: benjamin.gaignard@...com, fabrice.gasnier@...com,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
William Breathitt Gray <vilhelm.gray@...il.com>
Subject: [PATCH v6 9/9] iio: counter: Remove IIO counter subdirectory
This patch removes the IIO counter subdirectory which is now superceded
by the Counter subsystem. Deprecation warnings are added to the
documentation of the relevant IIO counter sysfs attributes.
Signed-off-by: William Breathitt Gray <vilhelm.gray@...il.com>
---
Documentation/ABI/testing/sysfs-bus-iio | 8 ++++++++
.../ABI/testing/sysfs-bus-iio-counter-104-quad-8 | 16 ++++++++++++++++
drivers/iio/Kconfig | 1 -
drivers/iio/Makefile | 1 -
drivers/iio/counter/Kconfig | 8 --------
drivers/iio/counter/Makefile | 5 -----
6 files changed, 24 insertions(+), 15 deletions(-)
delete mode 100644 drivers/iio/counter/Kconfig
delete mode 100644 drivers/iio/counter/Makefile
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 731146c3b138..6115d97b075e 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1637,6 +1637,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
KernelVersion: 4.10
Contact: linux-iio@...r.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.
@@ -1645,6 +1647,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
KernelVersion: 4.10
Contact: linux-iio@...r.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
@@ -1654,6 +1658,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
KernelVersion: 4.12
Contact: linux-iio@...r.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.
@@ -1662,4 +1668,6 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
KernelVersion: 4.12
Contact: linux-iio@...r.kernel.org
Description:
+ This interface is deprecated; please use the Counter subsystem.
+
Raw counter device counters direction for channel Y.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8 b/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
index 7fac2c268d9a..bac3d0d48b7b 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
+++ b/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
@@ -6,6 +6,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_index_synchronous_mode_available
KernelVersion: 4.10
Contact: linux-iio@...r.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@...r.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@...r.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@...r.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@...r.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@...r.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@...r.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@...r.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.
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d69e85a8bdc3..1152efad91a1 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -74,7 +74,6 @@ source "drivers/iio/afe/Kconfig"
source "drivers/iio/amplifiers/Kconfig"
source "drivers/iio/chemical/Kconfig"
source "drivers/iio/common/Kconfig"
-source "drivers/iio/counter/Kconfig"
source "drivers/iio/dac/Kconfig"
source "drivers/iio/dummy/Kconfig"
source "drivers/iio/frequency/Kconfig"
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index d8cba9c229c0..7bdd31f1b88f 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -20,7 +20,6 @@ obj-y += amplifiers/
obj-y += buffer/
obj-y += chemical/
obj-y += common/
-obj-y += counter/
obj-y += dac/
obj-y += dummy/
obj-y += gyro/
diff --git a/drivers/iio/counter/Kconfig b/drivers/iio/counter/Kconfig
deleted file mode 100644
index 95a7a0df6cac..000000000000
--- a/drivers/iio/counter/Kconfig
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Counter devices
-#
-# When adding new entries keep the list in alphabetical order
-
-menu "Counters"
-
-endmenu
diff --git a/drivers/iio/counter/Makefile b/drivers/iio/counter/Makefile
deleted file mode 100644
index 8fd3d954775a..000000000000
--- a/drivers/iio/counter/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for IIO counter devices
-#
-
-# When adding new entries keep the list in alphabetical order
--
2.17.0
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