From: Kim Seer Paller <kimseer.paller@analog.com>
To: <linux-kernel@vger.kernel.org>, <linux-iio@vger.kernel.org>,
<devicetree@vger.kernel.org>
Cc: "Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Lars-Peter Clausen" <lars@metafoo.de>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Dimitri Fedrau" <dima.fedrau@gmail.com>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Michael Hennerich" <michael.hennerich@analog.com>,
"Nuno Sá" <noname.nuno@gmail.com>,
"Kim Seer Paller" <kimseer.paller@analog.com>
Subject: [PATCH v4 1/5] iio: ABI: Generalize ABI documentation for DAC
Date: Wed, 19 Jun 2024 14:49:00 +0800 [thread overview]
Message-ID: <20240619064904.73832-2-kimseer.paller@analog.com> (raw)
In-Reply-To: <20240619064904.73832-1-kimseer.paller@analog.com>
Introduces a more generalized ABI documentation for DAC. Instead of
having separate ABI files for each DAC, we now have a single ABI file
that covers the common sysfs interface for all DAC.
Co-developed-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
---
Documentation/ABI/testing/sysfs-bus-iio-dac | 61 +++++++++++++++++++
.../ABI/testing/sysfs-bus-iio-dac-ltc2688 | 31 ----------
2 files changed, 61 insertions(+), 31 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-dac
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac b/Documentation/ABI/testing/sysfs-bus-iio-dac
new file mode 100644
index 000000000000..810eaac5533c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac
@@ -0,0 +1,61 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_toggle_en
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Toggle enable. Write 1 to enable toggle or 0 to disable it. This
+ is useful when one wants to change the DAC output codes. For
+ autonomous toggling, the way it should be done is:
+
+ - disable toggle operation;
+ - change out_currentY_rawN, where N is the integer value of the symbol;
+ - enable toggle operation.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_rawN
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute has the same meaning as out_currentY_raw. It is
+ specific to toggle enabled channels and refers to the DAC output
+ code in INPUT_N (_rawN), where N is the integer value of the symbol.
+ The same scale and offset as in out_currentY_raw applies.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_currentY_symbol
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Performs a SW switch to a predefined output symbol. This attribute
+ is specific to toggle enabled channels and allows switching between
+ multiple predefined symbols. Each symbol corresponds to a different
+ output, denoted as out_currentY_rawN, where N is the integer value
+ of the symbol. Writing an integer value N will select out_currentY_rawN.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Toggle enable. Write 1 to enable toggle or 0 to disable it. This
+ is useful when one wants to change the DAC output codes. For
+ autonomous toggling, the way it should be done is:
+
+ - disable toggle operation;
+ - change out_voltageY_rawN, where N is the integer value of the symbol;
+ - enable toggle operation.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_rawN
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute has the same meaning as out_currentY_raw. It is
+ specific to toggle enabled channels and refers to the DAC output
+ code in INPUT_N (_rawN), where N is the integer value of the symbol.
+ The same scale and offset as in out_currentY_raw applies.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol
+KernelVersion: 5.18
+Contact: linux-iio@vger.kernel.org
+Description:
+ Performs a SW switch to a predefined output symbol. This attribute
+ is specific to toggle enabled channels and allows switching between
+ multiple predefined symbols. Each symbol corresponds to a different
+ output, denoted as out_voltageY_rawN, where N is the integer value
+ of the symbol. Writing an integer value N will select out_voltageY_rawN.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688 b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
index 1c35971277ba..ae95a5477382 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ltc2688
@@ -53,34 +53,3 @@ KernelVersion: 5.18
Contact: linux-iio@vger.kernel.org
Description:
Returns the available values for the dither phase.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_toggle_en
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- Toggle enable. Write 1 to enable toggle or 0 to disable it. This is
- useful when one wants to change the DAC output codes. The way it should
- be done is:
-
- - disable toggle operation;
- - change out_voltageY_raw0 and out_voltageY_raw1;
- - enable toggle operation.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw0
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw1
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- It has the same meaning as out_voltageY_raw. This attribute is
- specific to toggle enabled channels and refers to the DAC output
- code in INPUT_A (_raw0) and INPUT_B (_raw1). The same scale and offset
- as in out_voltageY_raw applies.
-
-What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_symbol
-KernelVersion: 5.18
-Contact: linux-iio@vger.kernel.org
-Description:
- Performs a SW toggle. This attribute is specific to toggle
- enabled channels and allows to toggle between out_voltageY_raw0
- and out_voltageY_raw1 through software. Writing 0 will select
- out_voltageY_raw0 while 1 selects out_voltageY_raw1.
--
2.34.1
next prev parent reply other threads:[~2024-06-19 6:49 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-19 6:48 [PATCH v4 0/5] Add driver for LTC2664 and LTC2672 Kim Seer Paller
2024-06-19 6:49 ` Kim Seer Paller [this message]
2024-06-19 6:49 ` [PATCH v4 2/5] iio: ABI: add DAC 42kohm_to_gnd powerdown mode Kim Seer Paller
2024-06-19 6:49 ` [PATCH v4 3/5] dt-bindings: iio: dac: Add adi,ltc2664.yaml Kim Seer Paller
2024-06-19 17:56 ` Conor Dooley
2024-06-24 15:13 ` Paller, Kim Seer
2024-06-24 16:13 ` Conor Dooley
2024-06-24 16:48 ` David Lechner
2024-06-25 15:41 ` Paller, Kim Seer
2024-06-19 6:49 ` [PATCH v4 4/5] dt-bindings: iio: dac: Add adi,ltc2672.yaml Kim Seer Paller
2024-06-19 17:57 ` Conor Dooley
2024-06-23 13:43 ` Jonathan Cameron
2024-06-23 14:03 ` Conor Dooley
2024-06-23 16:20 ` Jonathan Cameron
2024-06-24 15:26 ` Paller, Kim Seer
2024-06-24 17:00 ` Conor Dooley
2024-06-24 17:37 ` Jonathan Cameron
2024-06-25 15:51 ` Paller, Kim Seer
2024-06-25 16:20 ` Conor Dooley
2024-06-28 19:02 ` Jonathan Cameron
2024-06-19 6:49 ` [PATCH v4 5/5] iio: dac: ltc2664: Add driver for LTC2664 and LTC2672 Kim Seer Paller
2024-06-20 0:00 ` Paller, Kim Seer
2024-06-23 13:50 ` Jonathan Cameron
2024-06-26 11:14 ` Nuno Sá
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