From: David Marinovic <david.marinovic@pupin.rs>

The LTC2654 is a quad-channel, 16-/12-bit DAC with internal
reference voltage and SPI interface, sharing the same 24-bit
SPI protocol as the LTC2632/2634/2636 family.

Add compatible strings for the following variants:
- lltc,ltc2654-l16: 16-bit, 2.5V internal reference
- lltc,ltc2654-l12: 12-bit, 2.5V internal reference
- lltc,ltc2654-h16: 16-bit, 4.096V internal reference
- lltc,ltc2654-h12: 12-bit, 4.096V internal reference

Signed-off-by: David Marinovic <david.marinovic@pupin.rs>
---
 .../devicetree/bindings/iio/dac/lltc,ltc2632.yaml    | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
index 733edc7d6d17..b22df24dee07 100644
--- a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
@@ -4,14 +4,16 @@
 $id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
+title: Linear Technology LTC263x and LTC2654 Rail-to-Rail DAC
 
 maintainers:
   - Michael Hennerich <michael.hennerich@analog.com>
 
 description: |
-  Bindings for the Linear Technology LTC2632/2634/2636 DAC
-  Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+  Bindings for the Linear Technology LTC2632/2634/2636/2654 DAC
+  Datasheet can be found here:
+    https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
+    https://www.analog.com/media/en/technical-documentation/data-sheets/2654f.pdf
 
 properties:
   compatible:
@@ -34,6 +36,10 @@ properties:
       - lltc,ltc2636-h12
       - lltc,ltc2636-h10
       - lltc,ltc2636-h8
+      - lltc,ltc2654-l16
+      - lltc,ltc2654-l12
+      - lltc,ltc2654-h16
+      - lltc,ltc2654-h12
 
   reg:
     maxItems: 1
-- 
2.50.1

On Wed, Mar 18, 2026 at 02:57:31PM +0100, David Marinović wrote:
> From: David Marinovic <david.marinovic@pupin.rs>
> 
> The LTC2654 is a quad-channel, 16-/12-bit DAC with internal
> reference voltage and SPI interface, sharing the same 24-bit
> SPI protocol as the LTC2632/2634/2636 family.

What makes these devices incompatible from the existing ones in the
file?
Can you add a note about that please?

Thanks,
Conor.

> 
> Add compatible strings for the following variants:
> - lltc,ltc2654-l16: 16-bit, 2.5V internal reference
> - lltc,ltc2654-l12: 12-bit, 2.5V internal reference
> - lltc,ltc2654-h16: 16-bit, 4.096V internal reference
> - lltc,ltc2654-h12: 12-bit, 4.096V internal reference
> 
> Signed-off-by: David Marinovic <david.marinovic@pupin.rs>
> ---
>  .../devicetree/bindings/iio/dac/lltc,ltc2632.yaml    | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
> index 733edc7d6d17..b22df24dee07 100644
> --- a/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
> +++ b/Documentation/devicetree/bindings/iio/dac/lltc,ltc2632.yaml
> @@ -4,14 +4,16 @@
>  $id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#
>  $schema: http://devicetree.org/meta-schemas/core.yaml#
>  
> -title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
> +title: Linear Technology LTC263x and LTC2654 Rail-to-Rail DAC
>  
>  maintainers:
>    - Michael Hennerich <michael.hennerich@analog.com>
>  
>  description: |
> -  Bindings for the Linear Technology LTC2632/2634/2636 DAC
> -  Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
> +  Bindings for the Linear Technology LTC2632/2634/2636/2654 DAC
> +  Datasheet can be found here:
> +    https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
> +    https://www.analog.com/media/en/technical-documentation/data-sheets/2654f.pdf
>  
>  properties:
>    compatible:
> @@ -34,6 +36,10 @@ properties:
>        - lltc,ltc2636-h12
>        - lltc,ltc2636-h10
>        - lltc,ltc2636-h8
> +      - lltc,ltc2654-l16
> +      - lltc,ltc2654-l12
> +      - lltc,ltc2654-h16
> +      - lltc,ltc2654-h12
>  
>    reg:
>      maxItems: 1
> -- 
> 2.50.1
>