Add dt bindings for adc ad7779.
Signed-off-by: Ramona Alexandra Nechita <[email protected]>
---
.../ABI/testing/sysfs-bus-iio-adc-ad777x | 23 +++++
.../bindings/iio/adc/adi,ad7779.yaml | 87 +++++++++++++++++++
2 files changed, 110 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad777x
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-ad777x b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad777x
new file mode 100644
index 000000000000..0a57fda598e6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-ad777x
@@ -0,0 +1,23 @@
+What: /sys/bus/iio/devices/iio:deviceX/filter_type_available
+KernelVersion: 6.1
+Contact: [email protected]
+Description:
+ Reading returns a list with the possible filter modes. Only supported by
+ AD7771.
+
+ * "sinc3" - The digital sinc3 filter implements three main notches, one at
+ the maximum ODR (128 kHz or 32 kHz, depending on the
+ power mode) and another two at the ODR frequency selected to
+ stop noise aliasing into the pass band.
+
+ * "sinc5" - The sinc5 filter implements five notches, one at
+ the maximum ODR (128 kHz or 32 kHz, depending on the
+ power mode) and another four at the ODR frequency
+ selected to stop noise aliasing into the pass band.
+
+What: /sys/bus/iio/devices/iio:deviceX/filter_type
+KernelVersion: 6.1
+Contact: [email protected]
+Description:
+ Set the filter mode of the differential channel. The current sampling_frequency
+ is set according to the filter range. Only supported by AD7771.
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
new file mode 100644
index 000000000000..632e9ec0ab44
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7779.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD777X family 8-Channel, 24-Bit, Simultaneous Sampling ADCs
+
+maintainers:
+ - Ramona Nechita <[email protected]>
+
+description: |
+ The AD777X family consist of 8-channel, simultaneous sampling analog-to-
+ digital converter (ADC). Eight full Σ-Δ ADCs are on-chip. The
+ AD7771 provides an ultralow input current to allow direct sensor
+ connection. Each input channel has a programmable gain stage
+ allowing gains of 1, 2, 4, and 8 to map lower amplitude sensor
+ outputs into the full-scale ADC input range, maximizing the
+ dynamic range of the signal chain.
+
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7770.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7771.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7779.pdf
+
+$ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7770
+ - adi,ad7771
+ - adi,ad7779
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ spi-max-frequency: true
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vref-supply:
+ description:
+ ADC reference voltage supply
+
+ start-gpios:
+ description:
+ Pin that controls start synchronization pulse.
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7779";
+ reg = <0>;
+ spi-max-frequency = <20000000>;
+ vref-supply = <&vref>;
+ start-gpios = <&gpio0 87 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio0 93 GPIO_ACTIVE_LOW>;
+ clocks = <&adc_clk>;
+ };
+ };
+...
--
2.43.0
On 31/05/2024 11:26, ranechita wrote:
> Add dt bindings for adc ad7779.
>
> Signed-off-by: Ramona Alexandra Nechita <[email protected]>
1. Again v2? Nothing improved? No changelog? You are sending the same
over and over and expect different feedback?
2. Still your name did not improve in the Form field.
Please read submitting patches before posting new version.
Best regards,
Krzysztof
On 31/05/2024 11:39, Krzysztof Kozlowski wrote:
> On 31/05/2024 11:26, ranechita wrote:
>> Add dt bindings for adc ad7779.
>>
>> Signed-off-by: Ramona Alexandra Nechita <[email protected]>
>
> 1. Again v2? Nothing improved? No changelog? You are sending the same
> over and over and expect different feedback?
>
If this was not clear:
Provide proper changelog (as explained by submitting patches) and
version your work correctly. 3 times v2 does not make any sense.
Best regards,
Krzysztof