[v2] Add SPI offload support to AD4030

[PATCH v2 4/8] dt-bindings: iio: adc: adi,ad4030: Add PWM

Posted by Marcelo Schmitt 1 week, 6 days ago

In setups designed for high speed data rate capture, a PWM is used to
generate the CNV signal that issues data captures from the ADC. Document
the use of a PWM for AD4030 and similar devices.

Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
---
Change log v1 -> v2
- Dropped pwm-names since only one PWM signal is directly requested by the ADC.

 Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml
index a8fee4062d0e..564b6f67a96e 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml
@@ -64,6 +64,10 @@ properties:
       The Reset Input (/RST). Used for asynchronous device reset.
     maxItems: 1
 
+  pwms:
+    description: PWM signal connected to the CNV pin.
+    maxItems: 1
+
   interrupts:
     description:
       The BUSY pin is used to signal that the conversions results are available
-- 
2.50.1

Re: [PATCH v2 4/8] dt-bindings: iio: adc: adi,ad4030: Add PWM

Posted by Conor Dooley 1 week, 5 days ago

Acked-by: Conor Dooley <conor.dooley@microchip.com>

Re: [PATCH v2 4/8] dt-bindings: iio: adc: adi,ad4030: Add PWM

Posted by David Lechner 1 week, 6 days ago

On 9/18/25 12:38 PM, Marcelo Schmitt wrote:
> In setups designed for high speed data rate capture, a PWM is used to
> generate the CNV signal that issues data captures from the ADC. Document
> the use of a PWM for AD4030 and similar devices.
> 
> Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
> ---

Reviewed-by: David Lechner <dlechner@baylibre.com>