On 08/13, Krzysztof Kozlowski wrote:

On 13/08/2025 04:48, Jonathan Santos wrote:

quoted

Add compatibles for supported parts in the ad7768-1 family:
	ADAQ7767-1, ADAQ7768-1 and ADAQ7769-1

Add property and checks for AFF gain, supported by ADAQ7767-1
and ADAQ7769-1 parts:
	adi,aaf-gain

Signed-off-by: Jonathan Santos <redacted>
---
 .../bindings/iio/adc/adi,ad7768-1.yaml        | 48 +++++++++++++++++--
 1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
index c06d0fc791d3..568a85e0d052 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml

@@ -4,18 +4,26 @@
 $id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Analog Devices AD7768-1 ADC device driver
+title: Analog Devices AD7768-1 ADC family device driver

If doing this, drop device driver. It should not be here in the first place.

Noted.

quoted

 
 maintainers:
   - Michael Hennerich [off-list ref]
 
 description: |
-  Datasheet at:
-    https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
+  Analog Devices AD7768-1 24-Bit Single Channel Low Power sigma-delta ADC family
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7767-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7768-1.pdf
+  https://www.analog.com/media/en/technical-documentation/data-sheets/adaq7769-1.pdf
 
 properties:
   compatible:
-    const: adi,ad7768-1
+    enum:
+      - adi,ad7768-1
+      - adi,adaq7767-1
+      - adi,adaq7768-1
+      - adi,adaq7769-1
 
   reg:
     maxItems: 1

@@ -58,6 +66,23 @@ properties:
     description:
       ADC reference voltage supply
 
+  adi,aaf-gain:
+    description: |
+      Specifies the gain of the Analog Anti-Aliasing Filter (AAF) applied to the
+      ADC input, measured in milli-units. The AAF provides additional signal

What is milli unit? Isn't gain in dB, so maybe you want mB? Quite
unpopular to see mB, but we cannot use 1/100 of dB, so I could
understand it.

Actually, the gain is expressed in V/V, not in dB. I may have phrased it poorly, but since
there are fractional values like 0.364 and 0.143, I chose to represent it
in milli-units.

quoted

+      rejection within the frequency range of fs ± f3dB, where fs is the sampling
+      frequency, and f3dB is the -3dB cutoff frequency. The specific values of
+      fs and f3dB, as well as the rejection intensity, depend on the digital
+      filter configuration.

Best regards,
Krzysztof